 <OpenGeoSysProjectDiff base_file="cube_1e0.prj">

   <replace sel="//output/prefix/text()">cube_1e0_fail_lin_solver</replace>

   <remove sel="//time_stepping" />

   <add sel="/*/time_loop/*/process">

     <time_stepping>

       <type>IterationNumberBasedTimeStepping</type>

       <t_initial>0</t_initial>

       <t_end>1</t_end>

       <initial_dt>0.5</initial_dt>

       <minimum_dt>0.125</minimum_dt>

       <maximum_dt>1.0</maximum_dt>

       <number_iterations>1 5 10</number_iterations>

       <multiplier>1 1 0.5</multiplier>

     </time_stepping>

   </add>

   <remove sel="/*/parameters/parameter[name='E']" />

   <add sel="/*/parameters">

     <parameter>

       <name>E</name>

       <type>Function</type>

       <expression>/* do one timestep successfully, then make OGS fail */

                 if (t < 0.6)

                     1;

                 else

                     /* E of 0 will make SparseLU fail in the compute() step (that's what is to be tested) */

                     0;</expression>

     </parameter>

   </add>

   <replace sel="//eigen/solver_type/text()">SparseLU</replace>

 </OpenGeoSysProjectDiff>