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 2.253/2.253, allocations: 256.4 MB / 268.5 MB, free: 12.26 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.899e-05/3.922e-05, allocations: 11.98 kB / 331.2 MB, free: 13.44 MB / 282.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3156/0.3156, allocations: 59.8 MB / 391 MB, free: 5.461 MB / 314.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.1494/0.4651, allocations: 99.46 MB / 490.5 MB, free: 1.859 MB / 410.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.00028/0.4654, allocations: 91.94 kB / 490.6 MB, free: 1.77 MB / 410.7 MB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/OpenHPL 1.0.2/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 0.0937/0.5591, allocations: 20.36 MB / 0.499 GB, free: 13.36 MB / 442.7 MB