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.DD.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.DD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.13/4.13, allocations: 432.6 MB / 445.2 MB, free: 15.81 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.634e-05/3.653e-05, allocations: 3.562 kB / 0.5383 GB, free: 10.28 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2276/0.2277, allocations: 98.73 MB / 0.6347 GB, free: 1.859 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8916/1.119, allocations: 185.6 MB / 0.816 GB, free: 46.19 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004071/1.12, allocations: 117 kB / 0.8161 GB, free: 46.19 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5625/1.682, allocations: 124 MB / 0.9372 GB, free: 9.895 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 3.597e-06/1.682, allocations: 0 / 0.9372 GB, free: 9.895 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0004233/1.683, allocations: 71.77 kB / 0.9373 GB, free: 9.828 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 0.01844/1.701, allocations: 2.704 MB / 0.94 GB, free: 7.078 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 7.09e-05/1.701, allocations: 12.03 kB / 0.94 GB, free: 7.066 MB / 0.6823 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003619/1.705, allocations: 487.9 kB / 0.9404 GB, free: 6.586 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03693/1.742, allocations: 2.087 MB / 0.9425 GB, free: 4.496 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01123/1.753, allocations: 2.004 MB / 0.9444 GB, free: 2.465 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005529/1.754, allocations: 229.5 kB / 0.9446 GB, free: 2.246 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002777/1.757, allocations: 311.3 kB / 0.9449 GB, free: 1.953 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02427/1.781, allocations: 5.349 MB / 0.9502 GB, free: 12.53 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001082/1.781, allocations: 0 / 0.9502 GB, free: 12.53 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007916/1.782, allocations: 133.6 kB / 0.9503 GB, free: 12.41 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008744/1.783, allocations: 289.3 kB / 0.9506 GB, free: 12.12 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01733/1.8, allocations: 5.027 MB / 0.9555 GB, free: 7.082 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0555/1.856, allocations: 24.84 MB / 0.9797 GB, free: 12.3 MB / 0.7292 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01796/1.874, allocations: 4.962 MB / 0.9846 GB, free: 6.984 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01032/1.884, allocations: 2.317 MB / 0.9868 GB, free: 4.652 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0006741/1.885, allocations: 149.2 kB / 0.987 GB, free: 4.504 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.694e-05/1.885, allocations: 60.55 kB / 0.987 GB, free: 4.434 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 1.422e-05/1.885, allocations: 0 / 0.987 GB, free: 4.434 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.3094/2.195, allocations: 31 MB / 1.017 GB, free: 5.5 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001648/2.195, allocations: 239.9 kB / 1.018 GB, free: 5.215 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002995/2.198, allocations: 1.149 MB / 1.019 GB, free: 4.051 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0008885/2.199, allocations: 73.7 kB / 1.019 GB, free: 3.973 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001428/2.2, allocations: 1.258 MB / 1.02 GB, free: 2.703 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002092/2.202, allocations: 1.043 MB / 1.021 GB, free: 1.672 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005948/2.203, allocations: 68 kB / 1.021 GB, free: 1.605 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0004042/2.203, allocations: 448.7 kB / 1.021 GB, free: 1.16 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006837/2.21, allocations: 2.232 MB / 1.024 GB, free: 14.93 MB / 0.7761 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007882/2.218, allocations: 2.926 MB / 1.027 GB, free: 11.73 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007769/2.226, allocations: 2.652 MB / 1.029 GB, free: 9.059 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.893e-05/2.226, allocations: 4 kB / 1.029 GB, free: 9.055 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03212/2.258, allocations: 8.419 MB / 1.037 GB, free: 0.582 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003479/2.262, allocations: 7.331 MB / 1.044 GB, free: 8.672 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.216e-05/2.262, allocations: 16 kB / 1.045 GB, free: 8.656 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04744/2.309, allocations: 6.758 MB / 1.051 GB, free: 1.883 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007641/2.317, allocations: 0.8228 MB / 1.052 GB, free: 1.059 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04591/2.363, allocations: 16.65 MB / 1.068 GB, free: 252 kB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007579/2.371, allocations: 0.5029 MB / 1.069 GB, free: 15.74 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001121/2.372, allocations: 183.9 kB / 1.069 GB, free: 15.56 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.638e-05/2.372, allocations: 4 kB / 1.069 GB, free: 15.56 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 0.01079/2.383, allocations: 2.711 MB / 1.071 GB, free: 12.82 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated