python3 -m fmpy simulate  --output-file Modelica_4.0.0_Modelica.Electrical.Digital.Examples.DFFREG_res.csv --start-time 0 --stop-time 25 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.01 Modelica_4_0_0_Modelica_Electrical_Digital_Examples_DFFREG.fmu