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.YD.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.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 3.996/3.996, allocations: 432.7 MB / 445.3 MB, free: 15.64 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.122e-05/3.162e-05, allocations: 4 kB / 0.5383 GB, free: 10.31 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1748/0.1749, allocations: 98.72 MB / 0.6348 GB, free: 1.855 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7331/0.908, allocations: 186.7 MB / 0.8171 GB, free: 53.72 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003402/0.9084, allocations: 114.6 kB / 0.8172 GB, free: 53.72 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5282/1.437, allocations: 138.5 MB / 0.9525 GB, free: 15.65 MB / 0.698 GB
Notification: Performance of FrontEnd: time 2.333e-06/1.437, allocations: 0 / 0.9525 GB, free: 15.65 MB / 0.698 GB
Notification: Performance of Transformations before backend: time 0.0001961/1.437, allocations: 79.92 kB / 0.9526 GB, free: 15.57 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 0.01093/1.448, allocations: 2.947 MB / 0.9555 GB, free: 12.58 MB / 0.698 GB
Notification: Performance of prepare preOptimizeDAE: time 4.659e-05/1.448, allocations: 15.98 kB / 0.9555 GB, free: 12.56 MB / 0.698 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01736/1.465, allocations: 2.227 MB / 0.9576 GB, free: 10.33 MB / 0.698 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00668/1.472, allocations: 2.189 MB / 0.9598 GB, free: 8.09 MB / 0.698 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003981/1.472, allocations: 267.1 kB / 0.96 GB, free: 7.828 MB / 0.698 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001828/1.474, allocations: 352 kB / 0.9604 GB, free: 7.484 MB / 0.698 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01922/1.494, allocations: 6.013 MB / 0.9662 GB, free: 1.375 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001092/1.494, allocations: 4 kB / 0.9662 GB, free: 1.371 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009679/1.495, allocations: 151.9 kB / 0.9664 GB, free: 1.223 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006797/1.495, allocations: 306.1 kB / 0.9667 GB, free: 0.9219 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01588/1.511, allocations: 5.43 MB / 0.972 GB, free: 11.48 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 0.05346/1.565, allocations: 26.78 MB / 0.9981 GB, free: 14.49 MB / 0.7448 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008989/1.574, allocations: 4.499 MB / 1.003 GB, free: 9.688 MB / 0.7448 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004835/1.579, allocations: 2.048 MB / 1.005 GB, free: 7.625 MB / 0.7448 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003877/1.579, allocations: 131 kB / 1.005 GB, free: 7.477 MB / 0.7448 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.705e-05/1.579, allocations: 64.52 kB / 1.005 GB, free: 7.406 MB / 0.7448 GB
Notification: Performance of pre-optimization done (n=208): time 6.366e-06/1.579, allocations: 0 / 1.005 GB, free: 7.406 MB / 0.7448 GB
Notification: Performance of matching and sorting (n=277): time 0.1223/1.702, allocations: 25.58 MB / 1.03 GB, free: 13.78 MB / 0.7761 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001767/1.702, allocations: 247.6 kB / 1.03 GB, free: 13.48 MB / 0.7761 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002873/1.705, allocations: 1.3 MB / 1.031 GB, free: 12.18 MB / 0.7761 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006202/1.705, allocations: 73.7 kB / 1.031 GB, free: 12.1 MB / 0.7761 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001517/1.707, allocations: 1.497 MB / 1.033 GB, free: 10.58 MB / 0.7761 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001572/1.708, allocations: 0.9435 MB / 1.034 GB, free: 9.621 MB / 0.7761 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004577/1.709, allocations: 68 kB / 1.034 GB, free: 9.555 MB / 0.7761 GB
Notification: Performance of setup shared object (initialization): time 0.0003946/1.709, allocations: 448.7 kB / 1.034 GB, free: 9.109 MB / 0.7761 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005141/1.714, allocations: 2.103 MB / 1.036 GB, free: 7.004 MB / 0.7761 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006345/1.721, allocations: 3.013 MB / 1.039 GB, free: 3.605 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006156/1.727, allocations: 2.582 MB / 1.042 GB, free: 1 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.43e-05/1.727, allocations: 8 kB / 1.042 GB, free: 0.9922 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02436/1.752, allocations: 8.057 MB / 1.05 GB, free: 8.875 MB / 0.7917 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005887/1.757, allocations: 10.62 MB / 1.06 GB, free: 13.41 MB / 0.8073 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.161e-05/1.758, allocations: 27.95 kB / 1.06 GB, free: 13.39 MB / 0.8073 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02814/1.786, allocations: 5.729 MB / 1.066 GB, free: 7.645 MB / 0.8073 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005126/1.791, allocations: 0.8696 MB / 1.066 GB, free: 6.773 MB / 0.8073 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03361/1.825, allocations: 14.59 MB / 1.081 GB, free: 8.02 MB / 0.823 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005413/1.83, allocations: 0.5378 MB / 1.081 GB, free: 7.48 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009576/1.831, allocations: 171.9 kB / 1.081 GB, free: 7.312 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.88e-05/1.831, allocations: 7.953 kB / 1.081 GB, free: 7.305 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 <failed> postOpt replaceHomotopyWithSimplified (initialization): time 0.007097/1.838, allocations: 2.632 MB / 1.084 GB, free: 4.641 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated