Environment - simulationEnvironment: startTime=0 stopTime=2000 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.8 Regular simulation: ./ThermofluidStream_dev_ThermofluidStream.Undirected.Boundaries.Tests.Tank_upsideDownBottle -abortSlowSimulation -alarm=1200 -emit_protected -lv LOG_STATS LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_STDOUT | info | Chattering detected around time 1.3146595909e-11..0.412892721233 (100 state events in a row with a total time delta less than the step size 0.8). This can be a performance bottleneck. Use -lv LOG_EVENTS for more information. The zero-crossing was: flowResistance3.rear.m_flow >= 0.0 LOG_ASSERT | debug | Aborting simulation due to chattering being detected and the simulation flags requesting we do not continue further.