'setFloat64' not working when setting the initial value of states with FMU3.0?

[Rick-Wang0516]

I am trying to upgrade from using FMI2.0 to FMI3.0 since the adjointDerivative could be very helpful in this application, in which it is needed to set the initial values of both states and inputs.

With FMU2.0, the setReal and getReal work successfully for both states and inputs

fmu = fmpy.fmi2.FMU2Model(guid=fmu_md.guid, unzipDirectory=unzipdir, modelIdentifier=fmu_md.modelExchange.modelIdentifier)
fmu.instantiate()

fmu.setupExperiment()
fmu.enterInitializationMode()
fmu.exitInitializationMode()

fmu.setReal([valueReference], [init_value])
fmu.getReal([valueReference])[0]

But in with FMU3.0:

fmu = fmpy.fmi3.FMU3Model(guid=fmu_md.guid, unzipDirectory=unzipdir, modelIdentifier=fmu_md.modelExchange.modelIdentifier)
fmu.instantiate()

fmu.enterInitializationMode()
fmu.exitInitializationMode()

fmu.setFloat64([valueReference], [init_value])
fmu.getFloat64([valueReference])[0]

setFloat64 can only set the value of input, while getFloat64 can get the value of all.

I checked an example and explanation, but I suppose it is related only to the input. I would like to ask, with FMI3.0, what is the correct manner to set the initial value of the states? An example would be very appreciated.

Thanks a lot!