Running command: "" <> buildModelFMU(OpenHPL.Tests.HPSimplePenstockControl,fileNamePrefix="OpenHPL_OpenHPL_Tests_HPSimplePenstockControl",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(OpenHPL): time 2.487/2.487, allocations: 258 MB / 265.1 MB, free: 5.473 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.003e-05/2.984e-05, allocations: 8 kB / 327.8 MB, free: 9.906 MB / 266.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1553/0.1553, allocations: 60.24 MB / 388 MB, free: 13.58 MB / 330.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.5563/0.7117, allocations: 98.98 MB / 487 MB, free: 6.836 MB / 378.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003166/0.7121, allocations: 86.02 kB / 487.1 MB, free: 6.824 MB / 378.7 MB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OMCompiler/build/lib/omlibrary/OpenHPL 1.1.1/Tests/HPSimplePenstockControl.mo:50:3-51:61:writable] Error: Failed to instantiate equation 
connect(discharge.n, tail.n);.
Error: Error occurred while flattening model OpenHPL.Tests.HPSimplePenstockControl
Notification: Performance of FrontEnd: time 0.08889/0.801, allocations: 20.08 MB / 0.4953 GB, free: 13.27 MB / 394.7 MB