Environment - simulationEnvironment: startTime=0 stopTime=86400 tolerance=1e-06 numberOfIntervals=1440 stepSize=60 Regular simulation: ./AixLib_latest_AixLib.Fluid.BoilerCHP.Examples.BoilerSystem -abortSlowSimulation -alarm=480 -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.