Regular simulation: ./Buildings_5.0.1_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow -abortSlowSimulation -alarm=480   
LOG_SUCCESS       | info    | The initialization finished successfully without homotopy method.
stdout            | info    | ##IDA## -6 error occurred at time = 4.99954296454669
stdout            | info    | model terminate | Integrator failed. | Simulation terminated at time 4.99954