Environment - simulationEnvironment: startTime=1e+07 stopTime=1.1e+07 tolerance=0.00011 numberOfIntervals=2500 stepSize=400 Regular simulation: ./IDEAS_IDEAS.Examples.Tutorial.Example9 -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 | IDEAS_IDEAS.Examples.Tutorial.Example9_16dae_part0.c:1082: Invalid root: (2.3011)^(-nan) LOG_ASSERT | debug | IDEAS_IDEAS.Examples.Tutorial.Example9_16dae_part0.c:1082: Invalid root: (2.3011)^(-nan) LOG_ASSERT | debug | ##IDA## In function IDAGetNumNonlinSolvIters: The user-provided residual function failed in an unrecoverable manner.