Running command: translateModel(OpenHPL.Tests.HPSimplePenstockPowerControl,tolerance=0.0001,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="OpenHPL_OpenHPL.Tests.HPSimplePenstockPowerControl")
Notification: Performance of loadModel(OpenHPL): time 2.337/2.337, allocations: 257 MB / 269.1 MB, free: 11.76 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.533e-05/3.541e-05, allocations: 4 kB / 332 MB, free: 12.77 MB / 282.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3189/0.3189, allocations: 59.96 MB / 392 MB, free: 4.609 MB / 314.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.1441/0.4631, allocations: 97.45 MB / 489.5 MB, free: 3.016 MB / 410.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002722/0.4634, allocations: 87.95 kB / 489.5 MB, free: 2.93 MB / 410.7 MB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/OpenHPL 1.1.1/Tests/HPSimplePenstockPowerControl.mo:47:3-48:73:writable] Error: Failed to instantiate equation 
connect(discharge.n, tail.n);.
Error: Error occurred while flattening model OpenHPL.Tests.HPSimplePenstockPowerControl
Notification: Performance of FrontEnd: time 0.06578/0.5292, allocations: 14.65 MB / 0.4924 GB, free: 4.242 MB / 426.7 MB