Running command: translateModel(OpenHPL.Tests.HPElasticKPPenstock,tolerance=0.0001,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="OpenHPL_OpenHPL.Tests.HPElasticKPPenstock")
Notification: Performance of loadModel(OpenHPL): time 2.395/2.395, allocations: 258 MB / 271.8 MB, free: 13.65 MB / 234.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.457e-05/3.467e-05, allocations: 8 kB / 335.7 MB, free: 2.062 MB / 266.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1033/0.1033, allocations: 60.25 MB / 396 MB, free: 5.688 MB / 330.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.4167/0.5201, allocations: 102.9 MB / 498.8 MB, free: 13.14 MB / 410.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000271/0.5204, allocations: 95.89 kB / 498.9 MB, free: 13.09 MB / 410.7 MB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/OpenHPL 1.1.1/Tests/HPElasticKPPenstock.mo:41:3-42:97:writable] Error: Failed to instantiate equation 
connect(discharge.n, tail.n);.
Error: Error occurred while flattening model OpenHPL.Tests.HPElasticKPPenstock
Notification: Performance of FrontEnd: time 1.128/1.649, allocations: 195 MB / 0.6777 GB, free: 105.4 MB / 0.4948 GB