python3 -m fmpy simulate  --output-file Buildings_9_Buildings.Fluid.Movers.Examples.MoverStages_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_9_Buildings_Fluid_Movers_Examples_MoverStages.fmu
LOG_ASSERT        | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/Fluid/Movers/BaseClasses/PartialFlowMachine.mo:348:3-357:39:writable]
|                 | |       | The following assertion has been violated during initialization at time 0.000000
|                 | |       | ((pump_m_flow.nominalValuesDefineDefaultPressureCurve)) --> "*** Warning: You are using a flow or pressure controlled mover with the
|                 | |       |              default pressure curve.
|                 | |       |              This leads to approximate calculations of the electrical power
|                 | |       |              consumption. Add the correct pressure curve in the record per
|                 | |       |              to obtain an accurate computation.
|                 | |       |              Setting nominalValuesDefineDefaultPressureCurve=true will suppress this warning."