Environment - simulationEnvironment: startTime=0 stopTime=4 tolerance=1e-06 numberOfIntervals=5003 stepSize=0.00079952 Regular simulation: ./ModelicaTest_4.1.0_ModelicaTest.MultiBody.Joints.JointUSP2 -abortSlowSimulation -alarm=480 -s gbode -emit_protected -lv LOG_STATS LOG_STDOUT | warning | Numerical Jacobians without coloring are currently not supported by GBODE. Colored numerical Jacobian will be used. LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.678973. LOG_STDOUT | info | Try half of the step size = 0.000500225 LOG_STDOUT | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.679067. That might raise performance issues, for more information use -lv LOG_LS. LOG_STDOUT | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.679026. That might raise performance issues, for more information use -lv LOG_LS. LOG_STDOUT | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.679026. That might raise performance issues, for more information use -lv LOG_LS. LOG_STDOUT | info | Too many warnings, reached display limit of 3. Suppressing further warning messages of the same type. LOG_STDOUT | info | Change limit with simulation flag -lvMaxWarn= LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.679082. LOG_STDOUT | info | Try half of the step size = 7.4276e-05 LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.679008. LOG_STDOUT | info | Try half of the step size = 3.7138e-05 LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.67905. LOG_STDOUT | info | Try half of the step size = 1.51835e-05 LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.679036. LOG_STDOUT | info | Try half of the step size = 4.08323e-06 LOG_STDOUT | info | GBODE: Solution of NLS failed, Try with less accuracy. LOG_STDOUT | info | gbode_main: Failed to calculate step at time = 0.679032. LOG_STDOUT | info | Try half of the step size = 2.04162e-06 LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/Mechanics/MultiBody/Joints/Internal/PrismaticWithLengthConstraint.mo:174:3-185:3:writable] | | | | The following assertion has been violated at time 0.679592 | | | | ((noEvent(jointUSP.prismatic.k1a > 1e-10))) --> " | | | | Singular position of loop (either no or two analytic solutions; | | | | the mechanism has lost one-degree-of freedom in this position). | | | | Try first to use another Modelica.Mechanics.MultiBody.Joints.Assemblies.JointXXX component. | | | | If this also lead to singular positions, it could be that this | | | | kinematic loop cannot be solved analytically with a fixed state | | | | selection. In this case you have to build up the loop with | | | | basic joints (NO aggregation JointXXX components) and rely on | | | | dynamic state selection, i.e., during simulation the states will | | | | be dynamically selected in such a way that in no position a | | | | degree of freedom is lost. | | | | " LOG_ASSERT | error | No event found, but assert was triggered. Throwing now!