python3 -m fmpy simulate  --output-file ModelicaByExample_ModelicaByExample.Subsystems.LotkaVolterra.Examples.UnconnectedPopulations_res.csv --start-time 0 --stop-time 40 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.016 ModelicaByExample_ModelicaByExample_Subsystems_LotkaVolterra_Examples_UnconnectedPopulations.fmu