Environment - simulationEnvironment: startTime=0 stopTime=86400 tolerance=1e-08 numberOfIntervals=2500 stepSize=34.56 Regular simulation: ./AixLib_AixLib.Fluid.HeatPumps.ModularReversible.Examples.VCLib4DAirToWater_OneRoomRadiator -abortSlowSimulation -alarm=240 -lv LOG_STATS LOG_STDOUT | warning | Internal Numerical Jacobians without coloring are currently not supported by IDA with KLU. Colored numerical Jacobian will be used. LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. LOG_ASSERT | debug | ##IDA## In function IDAGetNumNonlinSolvIters: The linear solver's setup function failed in an unrecoverable manner.