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.BalancedStepDown.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.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 4.02/4.02, allocations: 432.7 MB / 445.3 MB, free: 15.67 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.325e-05/3.342e-05, allocations: 4.328 kB / 0.5383 GB, free: 10.24 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1761/0.1762, allocations: 98.73 MB / 0.6348 GB, free: 1.891 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7635/0.9397, allocations: 184.9 MB / 0.8153 GB, free: 54.05 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003316/0.9401, allocations: 117.5 kB / 0.8154 GB, free: 54.05 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4442/1.384, allocations: 123.4 MB / 0.9359 GB, free: 0.9023 MB / 0.6667 GB
Notification: Performance of FrontEnd: time 3.293e-06/1.384, allocations: 4 kB / 0.9359 GB, free: 0.8984 MB / 0.6667 GB
Notification: Performance of Transformations before backend: time 0.0002789/1.385, allocations: 67.92 kB / 0.936 GB, free: 0.832 MB / 0.6667 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.01561/1.4, allocations: 2.666 MB / 0.9386 GB, free: 14.11 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 6.214e-05/1.4, allocations: 12.03 kB / 0.9386 GB, free: 14.1 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03005/1.431, allocations: 2.083 MB / 0.9406 GB, free: 12.01 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01298/1.444, allocations: 1.997 MB / 0.9426 GB, free: 9.965 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007266/1.444, allocations: 230.1 kB / 0.9428 GB, free: 9.738 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002244/1.447, allocations: 300 kB / 0.9431 GB, free: 9.445 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01681/1.463, allocations: 5.318 MB / 0.9483 GB, free: 4.016 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001009/1.464, allocations: 3.938 kB / 0.9483 GB, free: 4.012 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001003/1.465, allocations: 135.9 kB / 0.9484 GB, free: 3.879 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006927/1.465, allocations: 289.2 kB / 0.9487 GB, free: 3.594 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01441/1.48, allocations: 5.018 MB / 0.9536 GB, free: 14.56 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04712/1.527, allocations: 24.75 MB / 0.9778 GB, free: 3.754 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009186/1.536, allocations: 4.978 MB / 0.9826 GB, free: 14.42 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005247/1.541, allocations: 2.313 MB / 0.9849 GB, free: 12.09 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003585/1.542, allocations: 135 kB / 0.985 GB, free: 11.94 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.96e-05/1.542, allocations: 68.55 kB / 0.9851 GB, free: 11.86 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 6.557e-06/1.542, allocations: 3.938 kB / 0.9851 GB, free: 11.86 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.1544/1.696, allocations: 30.94 MB / 1.015 GB, free: 12.91 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001679/1.697, allocations: 239.9 kB / 1.016 GB, free: 12.62 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002364/1.699, allocations: 1.111 MB / 1.017 GB, free: 11.5 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006857/1.7, allocations: 85.69 kB / 1.017 GB, free: 11.41 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001539/1.701, allocations: 1.231 MB / 1.018 GB, free: 10.16 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001743/1.703, allocations: 1.047 MB / 1.019 GB, free: 9.094 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004445/1.703, allocations: 68 kB / 1.019 GB, free: 9.027 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003932/1.704, allocations: 444.7 kB / 1.019 GB, free: 8.586 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005441/1.709, allocations: 2.232 MB / 1.022 GB, free: 6.352 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006451/1.716, allocations: 2.922 MB / 1.024 GB, free: 3.16 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006534/1.722, allocations: 2.656 MB / 1.027 GB, free: 496 kB / 0.7605 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.815e-05/1.722, allocations: 8 kB / 1.027 GB, free: 488 kB / 0.7605 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02454/1.747, allocations: 8.412 MB / 1.035 GB, free: 8.012 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.00401/1.751, allocations: 7.315 MB / 1.042 GB, free: 120 kB / 0.7761 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.308e-05/1.751, allocations: 24 kB / 1.042 GB, free: 96 kB / 0.7761 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03437/1.786, allocations: 6.758 MB / 1.049 GB, free: 9.316 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004959/1.791, allocations: 0.8228 MB / 1.05 GB, free: 8.492 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0451/1.836, allocations: 16.65 MB / 1.066 GB, free: 7.672 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007191/1.843, allocations: 0.4995 MB / 1.067 GB, free: 7.172 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001316/1.844, allocations: 183.9 kB / 1.067 GB, free: 6.992 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 1.956e-05/1.844, allocations: 7.938 kB / 1.067 GB, free: 6.984 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 0.0114/1.856, allocations: 2.711 MB / 1.069 GB, free: 4.254 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated