Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/./OMCompiler/build/lib/omlibrary/ --ompython_omhome=/usr Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json Using package ModelicaServices with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/ModelicaServices 3.2.2/package.mo) Using package Complex with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Complex 3.2.2.mo) Using package Modelica with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Modelica 3.2.2/package.mo) Using package Buildings with version 6.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 6.0.0/package.mo) Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadModel(Buildings): time 4.012/4.012, allocations: 432.6 MB / 445.2 MB, free: 15.82 MB / 362.7 MB Notification: Performance of FrontEnd - loaded program: time 3.105e-05/3.126e-05, allocations: 3.812 kB / 0.5383 GB, free: 10.23 MB / 442.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2147/0.2147, allocations: 98.73 MB / 0.6348 GB, free: 1.848 MB / 0.5105 GB Notification: Performance of FrontEnd - scodeFlatten: time 0.9832/1.198, allocations: 186.7 MB / 0.8171 GB, free: 46.31 MB / 0.6511 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004271/1.198, allocations: 111.1 kB / 0.8172 GB, free: 46.31 MB / 0.6511 GB Notification: Performance of FrontEnd - DAE generated: time 0.541/1.74, allocations: 138.5 MB / 0.9525 GB, free: 10.69 MB / 0.698 GB Notification: Performance of FrontEnd: time 2.114e-06/1.74, allocations: 0 / 0.9525 GB, free: 10.69 MB / 0.698 GB Notification: Performance of Transformations before backend: time 0.0002076/1.74, allocations: 72 kB / 0.9526 GB, free: 10.62 MB / 0.698 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 994 * Number of variables: 994 Notification: Performance of Generate backend data structure: time 0.01519/1.755, allocations: 2.96 MB / 0.9555 GB, free: 7.613 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 6.45e-05/1.755, allocations: 12.03 kB / 0.9555 GB, free: 7.602 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003056/1.758, allocations: 0.5461 MB / 0.956 GB, free: 7.059 MB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03287/1.791, allocations: 2.223 MB / 0.9582 GB, free: 4.828 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01061/1.802, allocations: 2.189 MB / 0.9603 GB, free: 2.609 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004948/1.802, allocations: 270.6 kB / 0.9606 GB, free: 2.355 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002368/1.805, allocations: 347.8 kB / 0.9609 GB, free: 2.023 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02704/1.832, allocations: 6 MB / 0.9668 GB, free: 11.96 MB / 0.7136 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001473/1.832, allocations: 7.938 kB / 0.9668 GB, free: 11.95 MB / 0.7136 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001256/1.833, allocations: 153.8 kB / 0.9669 GB, free: 11.81 MB / 0.7136 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008968/1.834, allocations: 302.1 kB / 0.9672 GB, free: 11.51 MB / 0.7136 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01904/1.853, allocations: 5.43 MB / 0.9725 GB, free: 6.074 MB / 0.7136 GB Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.06067/1.914, allocations: 26.8 MB / 0.9987 GB, free: 9.207 MB / 0.7448 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01127/1.925, allocations: 4.491 MB / 1.003 GB, free: 4.41 MB / 0.7448 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005928/1.931, allocations: 2.055 MB / 1.005 GB, free: 2.34 MB / 0.7448 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004368/1.932, allocations: 130.5 kB / 1.005 GB, free: 2.199 MB / 0.7448 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.918e-05/1.932, allocations: 64.5 kB / 1.005 GB, free: 2.129 MB / 0.7448 GB Notification: Performance of pre-optimization done (n=208): time 5.17e-06/1.932, allocations: 3.938 kB / 1.005 GB, free: 2.125 MB / 0.7448 GB Notification: Performance of matching and sorting (n=277): time 0.2038/2.136, allocations: 25.58 MB / 1.03 GB, free: 8.539 MB / 0.7761 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001742/2.136, allocations: 235.6 kB / 1.03 GB, free: 8.258 MB / 0.7761 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003425/2.139, allocations: 1.3 MB / 1.032 GB, free: 6.949 MB / 0.7761 GB Notification: Performance of collectPreVariables (initialization): time 0.0007922/2.14, allocations: 69.7 kB / 1.032 GB, free: 6.875 MB / 0.7761 GB Notification: Performance of collectInitialEqns (initialization): time 0.001693/2.142, allocations: 1.504 MB / 1.033 GB, free: 5.359 MB / 0.7761 GB Notification: Performance of collectInitialBindings (initialization): time 0.001912/2.144, allocations: 0.9459 MB / 1.034 GB, free: 4.422 MB / 0.7761 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005823/2.144, allocations: 71.94 kB / 1.034 GB, free: 4.352 MB / 0.7761 GB Notification: Performance of setup shared object (initialization): time 0.0003854/2.145, allocations: 444.7 kB / 1.035 GB, free: 3.91 MB / 0.7761 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006401/2.151, allocations: 2.107 MB / 1.037 GB, free: 1.801 MB / 0.7761 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007613/2.159, allocations: 3.009 MB / 1.04 GB, free: 14.41 MB / 0.7917 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00756/2.166, allocations: 2.578 MB / 1.042 GB, free: 11.8 MB / 0.7917 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.127e-05/2.167, allocations: 12 kB / 1.042 GB, free: 11.79 MB / 0.7917 GB Notification: Performance of matching and sorting (n=416) (initialization): time 0.05139/2.218, allocations: 8.05 MB / 1.05 GB, free: 3.684 MB / 0.7917 GB Notification: Performance of prepare postOptimizeDAE: time 0.005066/2.223, allocations: 10.63 MB / 1.06 GB, free: 8.211 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.802e-05/2.223, allocations: 24 kB / 1.06 GB, free: 8.188 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.03927/2.263, allocations: 5.729 MB / 1.066 GB, free: 2.445 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00805/2.271, allocations: 0.8735 MB / 1.067 GB, free: 1.57 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04261/2.313, allocations: 14.58 MB / 1.081 GB, free: 2.832 MB / 0.823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007839/2.321, allocations: 0.5416 MB / 1.082 GB, free: 2.289 MB / 0.823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001102/2.322, allocations: 179.9 kB / 1.082 GB, free: 2.113 MB / 0.823 GB Notification: Performance of prepare postOptimizeDAE: time 1.809e-05/2.322, allocations: 4 kB / 1.082 GB, free: 2.109 MB / 0.823 GB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singulare and cannot handled because number of unassigned equations is larger than number of states. Use -d=bltdump to get more information. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.6106/2.933, allocations: 2.625 MB / 1.084 GB, free: 214.9 MB / 0.823 GB Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed. Error: No system for the symbolic initialization was generated