Running command: translateModel(OpenHPL.Tests.HPSimplePenstockFrancisGener,tolerance=0.0001,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="OpenHPL_OpenHPL.Tests.HPSimplePenstockFrancisGener")
Notification: Performance of loadModel(OpenHPL): time 2.274/2.274, allocations: 258 MB / 265.1 MB, free: 5.398 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.379e-05/2.386e-05, allocations: 4 kB / 327.7 MB, free: 10 MB / 266.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1034/0.1035, allocations: 60.24 MB / 387.9 MB, free: 13.67 MB / 330.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.4796/0.5831, allocations: 102 MB / 489.9 MB, free: 6.359 MB / 378.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002188/0.5834, allocations: 83.98 kB / 490 MB, free: 6.348 MB / 378.7 MB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OMCompiler/build/lib/omlibrary/OpenHPL 1.1.1/Tests/HPSimplePenstockFrancisGener.mo:65:3-66:73:writable] Error: Failed to instantiate equation 
connect(discharge.n, tail.n);.
Error: Error occurred while flattening model OpenHPL.Tests.HPSimplePenstockFrancisGener
Notification: Performance of FrontEnd: time 0.0727/0.6561, allocations: 17.14 MB / 0.4952 GB, free: 13.39 MB / 394.7 MB