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.BalancedStepDown.YD.conf.json Using package Buildings with version 6.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 6.0.0/package.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 Complex with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Complex 3.2.2.mo) Using package ModelicaServices with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/ModelicaServices 3.2.2/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/ModelicaServices 3.2.2/package.mo): time 0.004321/0.004321, allocations: 231.6 kB / 15.82 MB, free: 6.293 MB / 13.93 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Complex 3.2.2.mo): time 0.001196/0.001196, allocations: 172.1 kB / 16.7 MB, free: 5.453 MB / 13.93 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Modelica 3.2.2/package.mo): time 3.801/3.801, allocations: 389.1 MB / 406.5 MB, free: 11.85 MB / 330.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 6.0.0/package.mo): time 4.071/4.071, allocations: 472.3 MB / 0.9024 GB, free: 9.203 MB / 0.5886 GB Notification: Performance of FrontEnd - loaded program: time 0.0004922/0.0004925, allocations: 18.88 kB / 1.008 GB, free: 138.2 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1846/0.1851, allocations: 98.72 MB / 1.105 GB, free: 41.98 MB / 0.6042 GB Notification: Performance of FrontEnd - scodeFlatten: time 0.8718/1.057, allocations: 186.2 MB / 1.287 GB, free: 4.188 MB / 0.6511 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004254/1.057, allocations: 121.5 kB / 1.287 GB, free: 4.113 MB / 0.6511 GB Notification: Performance of FrontEnd - DAE generated: time 0.545/1.602, allocations: 134.6 MB / 1.418 GB, free: 7.664 MB / 0.7761 GB Notification: Performance of FrontEnd: time 3.216e-06/1.602, allocations: 0 / 1.418 GB, free: 7.664 MB / 0.7761 GB Notification: Performance of Transformations before backend: time 0.0002771/1.603, allocations: 75.98 kB / 1.418 GB, free: 7.59 MB / 0.7761 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.01837/1.621, allocations: 3.094 MB / 1.421 GB, free: 4.457 MB / 0.7761 GB Notification: Performance of prepare preOptimizeDAE: time 6.038e-05/1.621, allocations: 13.5 kB / 1.421 GB, free: 4.445 MB / 0.7761 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03077/1.652, allocations: 2.128 MB / 1.423 GB, free: 2.328 MB / 0.7761 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0105/1.663, allocations: 2.18 MB / 1.425 GB, free: 108 kB / 0.7761 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004992/1.663, allocations: 267 kB / 1.426 GB, free: 15.84 MB / 0.7917 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002173/1.665, allocations: 344 kB / 1.426 GB, free: 15.51 MB / 0.7917 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02871/1.694, allocations: 6.505 MB / 1.432 GB, free: 8.914 MB / 0.7917 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001159/1.694, allocations: 4.844 kB / 1.432 GB, free: 8.91 MB / 0.7917 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007497/1.695, allocations: 151.9 kB / 1.432 GB, free: 8.762 MB / 0.7917 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000887/1.696, allocations: 298.7 kB / 1.433 GB, free: 8.469 MB / 0.7917 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02757/1.723, allocations: 6.392 MB / 1.439 GB, free: 2.07 MB / 0.7917 GB Warning: The model contains alias variables with redundant start and/or conflicting 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 0.0572/1.781, allocations: 26.65 MB / 1.465 GB, free: 5.332 MB / 0.823 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01542/1.796, allocations: 4.994 MB / 1.47 GB, free: 64 kB / 0.823 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.5915/2.388, allocations: 2.536 MB / 1.472 GB, free: 202.1 MB / 0.823 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004076/2.388, allocations: 136 kB / 1.472 GB, free: 202.1 MB / 0.823 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.662e-05/2.388, allocations: 60.84 kB / 1.473 GB, free: 202 MB / 0.823 GB Notification: Performance of pre-optimization done (n=208): time 5.661e-06/2.388, allocations: 2.844 kB / 1.473 GB, free: 202 MB / 0.823 GB Notification: Performance of matching and sorting (n=277): time 0.206/2.594, allocations: 30.92 MB / 1.503 GB, free: 199.4 MB / 0.823 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.81e-05/2.594, allocations: 243.4 kB / 1.503 GB, free: 199.1 MB / 0.823 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002994/2.597, allocations: 1.42 MB / 1.504 GB, free: 198.9 MB / 0.823 GB Notification: Performance of collectPreVariables (initialization): time 0.000708/2.598, allocations: 68.11 kB / 1.504 GB, free: 198.9 MB / 0.823 GB Notification: Performance of collectInitialEqns (initialization): time 0.001142/2.599, allocations: 1.488 MB / 1.506 GB, free: 198.3 MB / 0.823 GB Notification: Performance of collectInitialBindings (initialization): time 0.001367/2.601, allocations: 0.9428 MB / 1.507 GB, free: 197.7 MB / 0.823 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004588/2.601, allocations: 63.34 kB / 1.507 GB, free: 197.7 MB / 0.823 GB Notification: Performance of setup shared object (initialization): time 0.0002245/2.601, allocations: 439 kB / 1.507 GB, free: 197.4 MB / 0.823 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0101/2.612, allocations: 2.612 MB / 1.51 GB, free: 197.4 MB / 0.823 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01122/2.623, allocations: 3.533 MB / 1.513 GB, free: 196.4 MB / 0.823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01155/2.634, allocations: 3.073 MB / 1.516 GB, free: 196.3 MB / 0.823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.059e-05/2.635, allocations: 16.83 kB / 1.516 GB, free: 196.3 MB / 0.823 GB Notification: Performance of matching and sorting (n=416) (initialization): time 0.04395/2.679, allocations: 9.555 MB / 1.526 GB, free: 196.1 MB / 0.823 GB Notification: Performance of prepare postOptimizeDAE: time 0.0006175/2.679, allocations: 0.878 MB / 1.526 GB, free: 195 MB / 0.823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.798e-05/2.679, allocations: 27.78 kB / 1.527 GB, free: 195 MB / 0.823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.05399/2.733, allocations: 7.546 MB / 1.534 GB, free: 195 MB / 0.823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007195/2.74, allocations: 0.8712 MB / 1.535 GB, free: 195 MB / 0.823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0403/2.781, allocations: 15.28 MB / 1.55 GB, free: 191.3 MB / 0.823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007447/2.788, allocations: 0.5556 MB / 1.55 GB, free: 191.2 MB / 0.823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008878/2.789, allocations: 193.8 kB / 1.55 GB, free: 191.2 MB / 0.823 GB Notification: Performance of prepare postOptimizeDAE: time 1.24e-05/2.789, allocations: 6.156 kB / 1.55 GB, free: 191.2 MB / 0.823 GB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01142/2.801, allocations: 3.142 MB / 1.553 GB, free: 190.1 MB / 0.823 GB Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed. Error: No system for the symbolic initialization was generated