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 2.273/2.273, allocations: 257 MB / 269.1 MB, free: 11.76 MB / 218.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.483e-05/3.49e-05, allocations: 8 kB / 332 MB, free: 12.77 MB / 282.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3183/0.3183, allocations: 59.98 MB / 392 MB, free: 4.598 MB / 314.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.1507/0.4691, allocations: 102.7 MB / 494.7 MB, free: 13.72 MB / 426.7 MB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002693/0.4694, allocations: 87.95 kB / 494.8 MB, free: 13.64 MB / 426.7 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 1.073/1.543, allocations: 194.6 MB / 0.6732 GB, free: 11.57 MB / 474.7 MB