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 2.307/2.307, allocations: 258 MB / 265.1 MB, free: 5.477 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 2.729e-05/2.741e-05, allocations: 10.11 kB / 327.7 MB, free: 10.02 MB / 266.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1058/0.1059, allocations: 60.25 MB / 387.9 MB, free: 13.68 MB / 330.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.446/0.5519, allocations: 96.9 MB / 484.8 MB, free: 7.398 MB / 378.7 MB Notification: Performance of FrontEnd - mkProgramGraph: time 0.000211/0.5521, allocations: 89.17 kB / 484.9 MB, free: 7.387 MB / 378.7 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/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 0.05699/0.6091, allocations: 14.43 MB / 499.3 MB, free: 2.398 MB / 378.7 MB