Notification: Performance of loadModel(Buildings): time 2.424/2.424, allocations: 268.2 MB / 275.3 MB, free: 7.637 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 1.833e-05/1.848e-05, allocations: 0 / 339.2 MB, free: 7.938 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2987/0.2988, allocations: 61.53 MB / 400.8 MB, free: 13.83 MB / 330.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 10.61/10.91, allocations: 4.483 GB / 4.874 GB, free: 129.3 MB / 0.5261 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003413/10.91, allocations: 81.44 kB / 4.874 GB, free: 129.3 MB / 0.5261 GB [/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 1.6/HeatTransfer/Windows/SideFins.mo:23:3-30:31:writable] Error: Failed to instantiate equation connect(weaBus.sol.alt, fin.alt) annotation(Text(string = "%first", index = -1, extent = {{-6, 3}, {-6, 3}}));. Error: Error occurred while flattening model Buildings.HeatTransfer.Windows.Examples.SideFins Notification: Performance of FrontEnd: time 0.154/11.06, allocations: 38.98 MB / 4.912 GB, free: 110.7 MB / 0.5261 GB