startTime=0 stopTime=6000 tolerance=1e-06 numberOfIntervals=2500 stepSize=2.4 Regular simulation: ./ModelicaTest_3.2.2_ModelicaTest.Fluid.TestExamplesVariants.HeatingSystem_FixedInitial -abortSlowSimulation -alarm=480 -lv LOG_STATS assert | warning | The following assertion has been violated at time 0.000000 | | | | pump.delta_head_init >= 0.0 assert | warning | Variable violating min constraint: 0.0 <= pump.delta_head_init, has value: -2.0431 assert | debug | division by zero at time 0, (a=-0.2364991217294849) / (b=-0), where divisor b expression is: m_flow 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