Environment - simulationEnvironment: startTime=1.296e+06 stopTime=1.3824e+06 tolerance=1e-06 numberOfIntervals=2500 stepSize=34.56 Regular simulation: ./Buildings_8_Buildings.Examples.Tutorial.CDL.System6 -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_ASSERT | debug | ##IDA## In function IDAGetNumNonlinSolvIters: The residual function, linear solver setup function, or linear solver solve function had a recoverable failure, but IDACalcIC could not recover. LOG_ASSERT | info | simulation terminated by an assertion at initialization