Environment - simulationEnvironment: startTime=1.5552e+07 stopTime=1.57248e+07 tolerance=1e-06 numberOfIntervals=2500 stepSize=69.12 Regular simulation: ./Buildings_12_Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.YorkCalc -abortSlowSimulation -alarm=400 -s gbode -emit_protected -lv LOG_STATS LOG_STDOUT | warning | Numerical Jacobians without coloring are currently not supported by GBODE. Colored numerical Jacobian will be used. LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/Fluid/HeatExchangers/CoolingTowers/YorkCalc.mo:44:3-54:65:writable] | | | | The following assertion has been violated at time 15552000.000000 | | | | ((tow.TAppCor >= 0.0)) --> "Variable violating min constraint: 0.0 <= tow.TAppCor, has value: -0.676198" LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/Fluid/HeatExchangers/CoolingTowers/YorkCalc.mo:28:3-29:53:writable] | | | | The following assertion has been violated at time 15553244.160000 | | | | ((tow.FRWat >= 0.0 and tow.FRWat <= 1.0)) --> "Variable violating min/max constraint: 0.0 <= tow.FRWat <= 1.0, has value: 1.00939" LOG_STDOUT | info | Chattering detected around time 15638123.52..15638154.9267 (100 state events in a row with a total time delta less than the step size 69.12). This can be a performance bottleneck. Use -lv LOG_EVENTS for more information. The zero-crossing was: pum.motSpe.y > 0.0 LOG_ASSERT | debug | Aborting simulation due to chattering being detected and the simulation flags requesting we do not continue further.