startTime=0 stopTime=604800 tolerance=1e-06 numberOfIntervals=2500 stepSize=241.92 Regular simulation: ./Buildings_maint.7.0.x_Buildings.ThermalZones.Detailed.Validation.SingleZoneFloorWithHeating -abortSlowSimulation -alarm=480 -lv LOG_STATS stdout | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.000000. That might raise performance issues, for more information use -lv LOG_LS. assert | debug | Buildings_maint.7.0.x_Buildings.ThermalZones.Detailed.Validation.SingleZoneFloorWithHeating_functions.c:1688: Invalid root: (nan)^(1.3333) assert | debug | Buildings_maint.7.0.x_Buildings.ThermalZones.Detailed.Validation.SingleZoneFloorWithHeating_functions.c:1688: Invalid root: (nan)^(1.3333) assert | debug | ##IDA## discrete update failed flag -8! assert | info | simulation terminated by an assertion at initialization