Regular simulation: ./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD -abortSlowSimulation -alarm=480   
stdout            | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.000000. That might raise performance issues, for more information use -lv LOG_LS.
stdout            | info    | The initialization finished successfully without homotopy method.
stdout            | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.000000. That might raise performance issues, for more information use -lv LOG_LS.
assert            | debug   | division leads to inf or nan at time 0.0002, (a=0) / (b=0), where divisor b is: (loadRL.load2.v[1] ^ 2.0 + loadRL.load2.v[2] ^ 2.0) ^ 2.0

Limited backtrace at point of segmentation fault
/lib/x86_64-linux-gnu/libpthread.so.0(+0x13150)[0x7f0d91f72150]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(_omc_setVectorData+0x0)[0x7f0d93405e40]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(solveLapack+0xa4)[0x7f0d933ece54]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(solve_linear_system+0x1b2)[0x7f0d933ec5f2]
./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD(Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_DD_eqFunction_1416+0x232)[0x458d12]
./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD(Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_DD_functionDAE+0x3d6)[0x4604f6]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(updateDiscreteSystem+0x8a)[0x7f0d934073aa]
./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD[0x454a04]
./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD(Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_DD_performSimulation+0x811)[0x453d01]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(solver_main+0x35a)[0x7f0d93411f2a]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(+0x1011d5)[0x7f0d934481d5]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(startNonInteractiveSimulation+0xac0)[0x7f0d93447600]
/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/x86_64-linux-gnu/omc/libSimulationRuntimeC.so(_main_SimulationRuntime+0x72)[0x7f0d9344a022]
./Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD(main+0x1d7)[0x461197]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7f0d91ba01c1]