Environment - simulationEnvironment: startTime=0 stopTime=300 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.12 Regular simulation: ./Buildings_3.0.0_Buildings.Fluid.Movers.Examples.PumpsSeries -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. stdout | warning | Error solving linear system of equations (no. 181) at time 0.000000. stdout | warning | Solving linear system 181 fails at time 0. For more information use -lv LOG_LS. assert | debug | Solving linear system 181 failed at time=0. | | | | For more information please use -lv LOG_LS. assert | error | Failed to solve the initialization problem with global homotopy with equidistant step size. assert | debug | Unable to solve initialization problem. assert | info | simulation terminated by an assertion at initialization