diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___permeability.prj
deleted file mode 100644
index 58fc4ac84849181e8102852e805b4fa7d484f2c4..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___permeability.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___porosity.prj
deleted file mode 100644
index 8576fe3c9782bbd20b5461b303edd9a2441d69c6..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___porosity.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 9def9ed9f6a0cb254f34a16131e8deb15cc2d5ac..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_transversal_dispersivity.prj
deleted file mode 100644
index 0eedc819026029e568936ec1c0c262057243e7ed..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT___thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_.prj
deleted file mode 100644
index 69a386a280de11255fe2b6c2ab5ee4a58a736e67..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_permeability.prj
deleted file mode 100644
index 286156c30f86ad388361a4b88cfdeba0c7c11e70..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_porosity.prj
deleted file mode 100644
index 3c419cb62dbbf404af7c269571bc4d3f3a741dfa..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 901c90d3c53c8d4db609d377f73f842aa7871513..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_transversal_dispersivity.prj
deleted file mode 100644
index b88fbfa5b686e777b79fdc1e4d459d64b9c38257..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__density_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_.prj
deleted file mode 100644
index 58f1d381d595047e09c209e55acfca881fbd7db0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_permeability.prj
deleted file mode 100644
index 324a17fddbd1dfdeae3bf2c9030c3c12f73aebe4..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_porosity.prj
deleted file mode 100644
index 59e4199b51b5cfbd2fcb1729c36bdd338b08efec..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 1af0380a5a0851a2e6ee0857ca052cd41863273a..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index e40a8b142db98ba8127781371d14bcac03d97fcc..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__specific_heat_capacity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_.prj
deleted file mode 100644
index 740e606782fe13cce9bcbcbb4215694434d14680..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_permeability.prj
deleted file mode 100644
index 89c2db04d9374aa0f562a463a2296b723bd1516d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_porosity.prj
deleted file mode 100644
index 738988fc989caafa5730479f7704d12656ee7b9f..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 56dcdc3d9248460200a79104dc9ac591af50d898..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 09bdae8e26f71ce31882db8094dcdf0349d8a0c0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__thermal_conductivity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_.prj
deleted file mode 100644
index b38faa8fef3a02f17975a92edc74fc9e2c96b4f2..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_permeability.prj
deleted file mode 100644
index 6e767dc12e197fe2b7a555126ec6ea697ca71535..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_porosity.prj
deleted file mode 100644
index d466f8f62540d37bbf8178645486df0fc9bd1be8..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index ed0142eab533879461391519e81193be6a7bfa4a..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index ff759eb8d8ff0960a4a7dc8a55cc9a2fccc0d3d4..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT__viscosity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__.prj
deleted file mode 100644
index 85a5799d86b2b823e335a2a6eff22b2fd50f8e98..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__permeability.prj
deleted file mode 100644
index 26d539cac99bed2ba7eee219215b85db58806130..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__porosity.prj
deleted file mode 100644
index c766f9ab1c6911cd5082657bfe23ab542a8ad1a8..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 47c242e296592b90be2eacc0df319b3ca72a8f4a..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_transversal_dispersivity.prj
deleted file mode 100644
index 25960e4f36042c4a412cc1af244bd21d38c87b69..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density__thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_.prj
deleted file mode 100644
index 1a57ae2f5f6b35ce6570e4219982783ed22ea9d0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_permeability.prj
deleted file mode 100644
index c9b0783a2680bd6b130388f62bef8cfb5a307dd0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_porosity.prj
deleted file mode 100644
index 55d640da152b5ca2b06eb162ee18ef30e4499c63..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 79432ed22cf81e76c7caef161bd6e64ef493cad1..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_transversal_dispersivity.prj
deleted file mode 100644
index ad7a44f495f1c03820fe439a5ee0bc33dc0134d6..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_density_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_.prj
deleted file mode 100644
index 86754c3006f33a98212555060f3feb713aec8ec2..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_permeability.prj
deleted file mode 100644
index 00430fc7cf3f92ca46346c3b96c5b9fda4a4c573..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_porosity.prj
deleted file mode 100644
index e4d7384fd5749f0aa5ce7b187bd9c764688c9b1a..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index a1642ae9c8e0383e5e0b8a016da7cc6a698d6f69..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 4375a235224649fa55da59c0c9d23777952a0a23..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_specific_heat_capacity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_.prj
deleted file mode 100644
index 280c8f00fc8c5885ccab71f232a9bf30e18c6e0e..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_permeability.prj
deleted file mode 100644
index ce15bf31c98fb39dd4065c8dd53096acf09fdbab..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_porosity.prj
deleted file mode 100644
index b83a64d8d46f3e31cd1312ad7a4befd10142046c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 48b21ab403257413a109839192ae1662647c7c00..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index c112d7cd0f7114a7819be49688c7bf7a45679a33..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_thermal_conductivity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_.prj
deleted file mode 100644
index 1a016bfe9ca3b225a4f20d9953726f754dc6665d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_permeability.prj
deleted file mode 100644
index d9dc7de2e89bdedeefdd771fe94ea9cf083aa423..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_porosity.prj
deleted file mode 100644
index 95ae10da1908095388ad2f2ce202af99f499e087..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 84dfa55a68848f3642cb04afe256bdd6b038388d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index e19c570b36b69121452e886a5f6524730063f66c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_density_viscosity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__.prj
deleted file mode 100644
index 088e7a2f108bc08a378b458e418e6fafc33912c2..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__permeability.prj
deleted file mode 100644
index e0e8d1781552b37f30d0de76f49e4eaf850033ff..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__porosity.prj
deleted file mode 100644
index 74254b64c935db097e1bc1940026c66ecc57ff66..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 74c0310044c87abf9311162c33bca2b14bbca982..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_transversal_dispersivity.prj
deleted file mode 100644
index 8862ac0852e6c29f929fd22c6fe8fa092e09fc7b..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity__thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_.prj
deleted file mode 100644
index eeb40b74e8bbc01daa7545ce6eb3688849e4489f..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_permeability.prj
deleted file mode 100644
index 1bb630bbb7b3bb0ce40cc96581c98e5e2b0f2fea..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_porosity.prj
deleted file mode 100644
index 2bea0bca07735b91323da5373d29a33efe2dec4a..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index b973a9cc04b7b896c4581ec9911ca9e122268294..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_transversal_dispersivity.prj
deleted file mode 100644
index e7b9682ee875c18b88d89f665f6a2b34aee33bf2..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_density_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_.prj
deleted file mode 100644
index a09baaa6fa309ebc94c6c6c731dd0105bc79a720..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_permeability.prj
deleted file mode 100644
index a25c3707efda1b80e12cb1790dbb2e33eb5b308b..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_porosity.prj
deleted file mode 100644
index efd5fe232525a993b267df26c6776b8e6cbec399..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 98d5199f094c4259e72620f502c610dac4483ebc..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 2deebae9f2851f65a41e74df8202691b98c1be35..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_specific_heat_capacity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_.prj
deleted file mode 100644
index 9d7e56250ae27e83ad035f0d14facee65d70493e..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_permeability.prj
deleted file mode 100644
index 58871df5f0d46b9e56ac581054bbcd03cec262f2..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_porosity.prj
deleted file mode 100644
index 600d6d035bb0d824df3f03415044870bd7ef6069..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index bcd7f6964240b97dd94b7e74844d3a85e35ffae5..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 163862f0f27741b99343f1c91285d29a993b5cdd..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_thermal_conductivity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_.prj
deleted file mode 100644
index 9dd006d17204b9d0a71fe9b353e2bae041a36557..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_permeability.prj
deleted file mode 100644
index 4f3d916bce379702bdda24fae3fb66bd81aad9ca..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_porosity.prj
deleted file mode 100644
index 7e410c7439904b9c7e9a2ee6b3227f50380239d4..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index e6f2ab327df337076edecf371f181a7a05b34900..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 5e9f89f9b90a94041cf991c83b89842d0680994b..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_specific_heat_capacity_viscosity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__.prj
deleted file mode 100644
index 7947e901301c5c2bf017d047529d3c371e6627dc..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__permeability.prj
deleted file mode 100644
index 68f0079124a82ed8ac4b8a374bbcdd307e8b55d7..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__porosity.prj
deleted file mode 100644
index 5d61877a79cf64bfdfa91071f439ffc9deb47eb7..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index d26590ac379ffc7b00b897360aef809cf342251e..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_transversal_dispersivity.prj
deleted file mode 100644
index 5a657865f2487dba82040309565dd5d899429ab4..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage__thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_.prj
deleted file mode 100644
index 6653e34e413ace8b03991e2167ef17b32b4edbee..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_permeability.prj
deleted file mode 100644
index c14fbf6803d0bc22915c4b2afbcd3f56daf7b1f8..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_porosity.prj
deleted file mode 100644
index 5c2a5943b2b6a2c1386f19a8ccf07ee0d6c01b68..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 96d728a7bbb7f5a89f3de1839dec001fdaec55b9..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_transversal_dispersivity.prj
deleted file mode 100644
index e19fd101823407c655f3e30729e7cd8bf9d0a894..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_density_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_.prj
deleted file mode 100644
index 21cb37aaa2a59a3a8623354e28b00dca96988f82..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_permeability.prj
deleted file mode 100644
index b98d796f5b655b9fd1c7cf56b35a1a8b2caa9ae0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_porosity.prj
deleted file mode 100644
index e6f04540810cb03f7a5fe5bc56b89180a0279ded..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index fcbaa0a1b428bfc2c1d87cd8b6a4068f40940c2b..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 8a3f1eb6d1bfcd9499b229fdce7619f03169bc62..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_specific_heat_capacity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_.prj
deleted file mode 100644
index bc501ab479e6d37d712528b42efb8bee736109ed..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_permeability.prj
deleted file mode 100644
index 5b9d4d26761e6a9a729fdf07d7b3bde908cba9df..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_porosity.prj
deleted file mode 100644
index f60e1133b026eeec389a337304174a0c72b409f6..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index f962635346b2b516871750575670eef2d28fc1aa..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index a7667c8eddde08b58dc412a30edccd764d8817f5..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_thermal_conductivity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_.prj
deleted file mode 100644
index c8e0897e4fb96d479fd11ec294803b191984f597..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_permeability.prj
deleted file mode 100644
index 893b145eb572c9e78c4d45bb55d303360e6cb375..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_porosity.prj
deleted file mode 100644
index 52b1b5cfda26311f474f9964f2944c1d6374ce5c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index d1817ca937aaec4671e5dfe3347b42453ae9830c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 2d236c1b998b0169d0c7608725d5af4927d92ce8..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_storage_viscosity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>3.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__.prj
deleted file mode 100644
index b2578cac89973622334e9661bdb7e31f69b56bf0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__.prj
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__permeability.prj
deleted file mode 100644
index 0b0e952fb7f44bde78b7e57f4c0b2525a07bf26d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__permeability.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__porosity.prj
deleted file mode 100644
index 687e1833866f58ad626dd720e602222503638f43..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__porosity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 0f8de28bab1fa364ec904fb46e2ff6fb26d83df1..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_transversal_dispersivity.prj
deleted file mode 100644
index 5b5b434487ec108497a0d806d0365c351653dc94..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity__thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_.prj
deleted file mode 100644
index c8ef242058c9ac3ebdd50d3ca0b6f7883aa62516..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_permeability.prj
deleted file mode 100644
index 35f58a91d4358c3ee103d9f39f65a609e5322358..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_porosity.prj
deleted file mode 100644
index 5231a25c82db9c3e98ebd1e13eaa276813d2806c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 4c92eb9abc9939bb319a62bfd700a186e4bb0c0d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 585a23049d222153dbe95ef48a5a3eee3d268d0b..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_density_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_.prj
deleted file mode 100644
index 557d1b8e099834bdfc2740abe7f0dcd3cbeb8a59..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_permeability.prj
deleted file mode 100644
index ef9f77ac4e3d337c58919c5c74ba73cf9e833918..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_porosity.prj
deleted file mode 100644
index 6a7e70dff01a29a4411a5da7d385aee7cbe45834..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 606223341d2ed6d812bfba78c601a6590465242e..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 58073c16917c89ac7b0e34fda124713f1eab045c..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_specific_heat_capacity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_.prj
deleted file mode 100644
index e18a0ada920437902abab46096e3e83f6b4d2283..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_permeability.prj
deleted file mode 100644
index 0a61b0bf3d1d64fff032c13f63b2be21acd2e51d..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_porosity.prj
deleted file mode 100644
index 6da5a0078f9ba2377a806a5ce202cd4c511e97b7..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index dee8f9638c348ae7a09d6b76997728a57092bf22..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 382e1834d11e7230bf4cee387485349c24e86a5e..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_thermal_conductivity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-            <property>
-              <name>viscosity</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_.prj
deleted file mode 100644
index f72c1d7c8c2b41ac7bdd0cfc4e01a7f868773dc6..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_.prj
+++ /dev/null
@@ -1,216 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_permeability.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_permeability.prj
deleted file mode 100644
index 8246d17a5fcce8b4b1a725b8122fec15b17fcca0..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_permeability.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_porosity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_porosity.prj
deleted file mode 100644
index 71b5486956bd6e697a95a81aec7d538307d7e710..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_porosity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_longitudinal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_longitudinal_dispersivity.prj
deleted file mode 100644
index 06b12b1e0d3bffd99308a9a5941bc04d194478d5..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_longitudinal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_transversal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>
diff --git a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_transversal_dispersivity.prj b/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_transversal_dispersivity.prj
deleted file mode 100644
index 30743a4ad34299b9fc544643e2853b201f0d64bc..0000000000000000000000000000000000000000
--- a/Tests/Data/Parabolic/HT/InvalidProjectFiles/HT_thermal_conductivity_viscosity_thermal_transversal_dispersivity.prj
+++ /dev/null
@@ -1,211 +0,0 @@
-<?xml version='1.0' encoding='ISO-8859-1'?>
-<OpenGeoSysProject>
-  <geometry>square_1x1.gml</geometry>
-  <mesh>square_1x1_quad_1e3.vtu</mesh>
-  <processes>
-    <process>
-      <name>HT</name>
-      <type>HT</type>
-      <integration_order>2</integration_order>
-      <specific_body_force>0 0</specific_body_force>
-      <process_variables>
-        <temperature>temperature</temperature>
-        <pressure>pressure</pressure>
-      </process_variables>
-      <secondary_variables>
-        <secondary_variable internal_name="darcy_velocity" output_name="darcy_velocity"/>
-      </secondary_variables>
-    </process>
-  </processes>
-  <media>
-    <medium id="0">
-      <phases>
-        <phase>
-          <type>AqueousLiquid</type>
-          <properties>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>thermal_conductivity</name>
-              <type>Constant</type>
-              <value>0.65</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>1e-3</value>
-            </property>
-          </properties>
-        </phase>
-        <phase>
-          <type>Solid</type>
-          <properties>
-            <property>
-              <name>storage</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>density</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-            <property>
-              <name>specific_heat_capacity</name>
-              <type>Constant</type>
-              <value>0.0</value>
-            </property>
-          </properties>
-        </phase>
-      </phases>
-      <properties>
-        <property>
-          <name>thermal_longitudinal_dispersivity</name>
-          <type>Constant</type>
-          <value>0.0</value>
-        </property>
-        <property>
-          <name>permeability</name>
-          <type>Constant</type>
-          <value>1e-14 0 0 1e-14</value>
-        </property>
-        <property>
-          <name>porosity</name>
-          <type>Constant</type>
-          <value>1e-3</value>
-        </property>
-      </properties>
-    </medium>
-  </media>
-  <time_loop>
-    <processes>
-      <process ref="HT">
-        <nonlinear_solver>basic_picard</nonlinear_solver>
-        <convergence_criterion>
-          <type>DeltaX</type>
-          <norm_type>NORM2</norm_type>
-          <abstol>1e-15</abstol>
-        </convergence_criterion>
-        <time_discretization>
-          <type>BackwardEuler</type>
-        </time_discretization>
-        <time_stepping>
-          <type>FixedTimeStepping</type>
-          <t_initial>0</t_initial>
-          <t_end>1</t_end>
-          <timesteps>
-            <pair>
-              <repeat>4</repeat>
-              <delta_t>0.25</delta_t>
-            </pair>
-          </timesteps>
-        </time_stepping>
-      </process>
-    </processes>
-    <output>
-      <type>VTK</type>
-      <prefix>HT_test_</prefix>
-      <timesteps>
-        <pair>
-          <repeat>1</repeat>
-          <each_steps>10</each_steps>
-        </pair>
-      </timesteps>
-      <variables>
-        <variable>temperature</variable>
-        <variable>pressure</variable>
-      </variables>
-    </output>
-  </time_loop>
-  <parameters>
-    <parameter>
-      <name>T0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>P0</name>
-      <type>Constant</type>
-      <value>0</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_left</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-    <parameter>
-      <name>p_Dirichlet_right</name>
-      <type>Constant</type>
-      <value>-1</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_bottom</name>
-      <type>Constant</type>
-      <value>2</value>
-    </parameter>
-    <parameter>
-      <name>t_Dirichlet_top</name>
-      <type>Constant</type>
-      <value>1</value>
-    </parameter>
-  </parameters>
-  <process_variables>
-    <process_variable>
-      <name>temperature</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>T0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>top</geometry>
-          <component>1</component>
-          <parameter>t_Dirichlet_top</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-    <process_variable>
-      <name>pressure</name>
-      <components>1</components>
-      <order>1</order>
-      <initial_condition>P0</initial_condition>
-      <boundary_conditions>
-        <boundary_condition>
-          <type>Dirichlet</type>
-          <geometrical_set>square_1x1_geometry</geometrical_set>
-          <geometry>right</geometry>
-          <component>1</component>
-          <parameter>p_Dirichlet_right</parameter>
-        </boundary_condition>
-      </boundary_conditions>
-    </process_variable>
-  </process_variables>
-  <nonlinear_solvers>
-    <nonlinear_solver>
-      <name>basic_picard</name>
-      <type>Picard</type>
-      <max_iter>4</max_iter>
-      <linear_solver>general_linear_solver</linear_solver>
-    </nonlinear_solver>
-  </nonlinear_solvers>
-  <linear_solvers>
-    <linear_solver>
-      <name>general_linear_solver</name>
-      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
-      <eigen>
-        <solver_type>CG</solver_type>
-        <precon_type>DIAGONAL</precon_type>
-        <max_iteration_step>10000</max_iteration_step>
-        <error_tolerance>1e-16</error_tolerance>
-      </eigen>
-      <petsc>
-        <prefix>sd</prefix>
-        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
-      </petsc>
-    </linear_solver>
-  </linear_solvers>
-</OpenGeoSysProject>