OMSimulator cannot simulate two connected FMUs exported from OMEdit

[Boldizsár Németh <nboldi@…>]

OMEdit v1.13.0-dev-253-g8f7c38ac (64-bit)
OMSimulator v2.0.0-dev-860-gf06327c-mingw

Steps to reproduce:

• Open OMEdit.
• Load OneDirection.mo
• Export model Source
• Export model Target
• Put the generated OneDirection.Source.fmu and OneDirection.Target.fmu into a folder with one-direction.lua
• Run OMSimulator on one-direction.lua

Result:

C:\Users\nboldi\Desktop\teszt>C:\OpenModelica1.13.0-dev-64bit\bin\OMSimulator.exe one-direction.lua
error:   [addConnection] [oms2::FMICompositeModel::addConnection] failed for Source:h -> Target:d
# FMI composite model "model"
## FMI sub model "Source"
type: FMU
## FMI sub model "Target"
type: FMU
## Connections
warning: No solver instance is assigned to FMU "Source"; A default solver will be selected: euler
warning: No solver instance is assigned to FMU "Target"; A default solver will be selected: euler

[Lennart Ochel]

The issue is introduced by the OpenModelica backend which renames outputs if they are also continuous states: The output appears as _D_outputStateAlias_h.

So this works from the Lua script:

-- add connections
oms2_addConnection("model", "Source:_D_outputStateAlias_h", "Target:d")

[Lennart Ochel]

Outputs will no longer be renamed; see ​OMCompiler#2899.