Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/./OMCompiler/build/lib/omlibrary/ --ompython_omhome=/usr Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD.conf.json
Using package ModelicaServices with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/build/lib/omlibrary/ModelicaServices 3.2.2/package.mo)
Using package Complex with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/build/lib/omlibrary/Complex 3.2.2.mo)
Using package Modelica with version 3.2.2 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/build/lib/omlibrary/Modelica 3.2.2/package.mo)
Using package Buildings with version 6.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 6.0.0/package.mo)
Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 3.99/3.99, allocations: 432.7 MB / 445.3 MB, free: 15.75 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.204e-05/3.226e-05, allocations: 5.047 kB / 0.5383 GB, free: 10.27 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1862/0.1863, allocations: 98.73 MB / 0.6348 GB, free: 1.898 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7422/0.9285, allocations: 185.6 MB / 0.816 GB, free: 53.73 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003629/0.9289, allocations: 116.8 kB / 0.8161 GB, free: 53.73 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4458/1.375, allocations: 124 MB / 0.9373 GB, free: 15.51 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.354e-06/1.375, allocations: 0 / 0.9373 GB, free: 15.51 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0001808/1.375, allocations: 64 kB / 0.9373 GB, free: 15.45 MB / 0.6823 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 874
 * Number of variables: 874
Notification: Performance of Generate backend data structure: time 0.01013/1.385, allocations: 2.705 MB / 0.94 GB, free: 12.69 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 4.878e-05/1.385, allocations: 15.98 kB / 0.94 GB, free: 12.67 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01596/1.401, allocations: 2.083 MB / 0.942 GB, free: 10.58 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006212/1.408, allocations: 2.005 MB / 0.944 GB, free: 8.531 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003367/1.408, allocations: 230.2 kB / 0.9442 GB, free: 8.305 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001641/1.41, allocations: 307.9 kB / 0.9445 GB, free: 8.004 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01723/1.427, allocations: 5.347 MB / 0.9497 GB, free: 2.547 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.811e-05/1.427, allocations: 0 / 0.9497 GB, free: 2.547 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008573/1.428, allocations: 131.9 kB / 0.9498 GB, free: 2.418 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007074/1.429, allocations: 293.3 kB / 0.9501 GB, free: 2.129 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01475/1.443, allocations: 5.023 MB / 0.955 GB, free: 13.09 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04842/1.492, allocations: 24.84 MB / 0.9793 GB, free: 2.199 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009775/1.502, allocations: 4.971 MB / 0.9841 GB, free: 12.87 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005606/1.507, allocations: 2.309 MB / 0.9864 GB, free: 10.54 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004336/1.508, allocations: 139 kB / 0.9865 GB, free: 10.39 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.608e-05/1.508, allocations: 72.45 kB / 0.9866 GB, free: 10.31 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 7.363e-06/1.508, allocations: 0 / 0.9866 GB, free: 10.31 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.1656/1.673, allocations: 31 MB / 1.017 GB, free: 11.3 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001706/1.674, allocations: 239.9 kB / 1.017 GB, free: 11.02 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002461/1.676, allocations: 1.149 MB / 1.018 GB, free: 9.852 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006727/1.677, allocations: 73.7 kB / 1.018 GB, free: 9.773 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001212/1.678, allocations: 1.254 MB / 1.02 GB, free: 8.5 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00172/1.68, allocations: 1.047 MB / 1.021 GB, free: 7.438 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004368/1.68, allocations: 64 kB / 1.021 GB, free: 7.375 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003725/1.681, allocations: 436.7 kB / 1.021 GB, free: 6.941 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005504/1.686, allocations: 2.24 MB / 1.023 GB, free: 4.699 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006659/1.693, allocations: 2.922 MB / 1.026 GB, free: 1.508 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006624/1.699, allocations: 2.664 MB / 1.029 GB, free: 14.82 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.897e-05/1.7, allocations: 8 kB / 1.029 GB, free: 14.81 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02482/1.724, allocations: 8.411 MB / 1.037 GB, free: 6.348 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004048/1.728, allocations: 7.323 MB / 1.044 GB, free: 14.45 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.383e-05/1.729, allocations: 20 kB / 1.044 GB, free: 14.43 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03447/1.763, allocations: 6.758 MB / 1.051 GB, free: 7.652 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005003/1.768, allocations: 0.8267 MB / 1.051 GB, free: 6.824 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04335/1.812, allocations: 16.65 MB / 1.068 GB, free: 6.008 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008807/1.82, allocations: 0.5068 MB / 1.068 GB, free: 5.5 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001561/1.822, allocations: 183.9 kB / 1.068 GB, free: 5.32 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 2.401e-05/1.822, allocations: 4 kB / 1.068 GB, free: 5.316 MB / 0.8073 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 <failed> postOpt replaceHomotopyWithSimplified (initialization): time 0.01291/1.835, allocations: 2.711 MB / 1.071 GB, free: 2.582 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated