Running command: translateModel(OpenHPL.Tests.HPSimplePenstockControl,tolerance=0.0001,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="OpenHPL_OpenHPL.Tests.HPSimplePenstockControl")
Notification: Performance of loadModel(OpenHPL): time 2.344/2.344, allocations: 258 MB / 265.1 MB, free: 5.465 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.24e-05/2.246e-05, allocations: 8 kB / 327.7 MB, free: 9.996 MB / 266.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1093/0.1093, allocations: 60.24 MB / 387.9 MB, free: 13.66 MB / 330.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.4918/0.6011, allocations: 98.98 MB / 486.9 MB, free: 7.074 MB / 378.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000214/0.6014, allocations: 85.58 kB / 487 MB, free: 7.062 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 0.07782/0.6792, allocations: 20.08 MB / 0.4952 GB, free: 13.55 MB / 394.7 MB