Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 3.887/3.887, allocations: 432.8 MB / 444.9 MB, free: 15.72 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.086e-05/3.098e-05, allocations: 4.219 kB / 0.5337 GB, free: 12.22 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1746/0.1746, allocations: 98.72 MB / 0.6302 GB, free: 6.211 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7383/0.913, allocations: 186 MB / 0.8118 GB, free: 57.21 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.00032/0.9133, allocations: 113.1 kB / 0.8119 GB, free: 57.21 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4577/1.371, allocations: 134.5 MB / 0.9432 GB, free: 8.629 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.314e-06/1.371, allocations: 0 / 0.9432 GB, free: 8.629 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0002088/1.371, allocations: 75.98 kB / 0.9432 GB, free: 8.555 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: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.0118/1.383, allocations: 2.929 MB / 0.9461 GB, free: 5.57 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.108e-05/1.383, allocations: 11.97 kB / 0.9461 GB, free: 5.559 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01654/1.4, allocations: 2.122 MB / 0.9482 GB, free: 3.43 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006655/1.406, allocations: 2.166 MB / 0.9503 GB, free: 1.219 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003666/1.407, allocations: 267 kB / 0.9506 GB, free: 0.957 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001658/1.409, allocations: 343.9 kB / 0.9509 GB, free: 0.6211 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01802/1.427, allocations: 5.904 MB / 0.9566 GB, free: 10.62 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001102/1.427, allocations: 7.938 kB / 0.9567 GB, free: 10.61 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009301/1.428, allocations: 151.9 kB / 0.9568 GB, free: 10.46 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006627/1.428, allocations: 306 kB / 0.9571 GB, free: 10.16 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01531/1.444, allocations: 5.329 MB / 0.9623 GB, free: 4.832 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05139/1.495, allocations: 26.65 MB / 0.9883 GB, free: 7.992 MB / 0.7292 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008876/1.504, allocations: 4.472 MB / 0.9927 GB, free: 3.215 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004864/1.509, allocations: 2.044 MB / 0.9947 GB, free: 1.152 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003549/1.509, allocations: 139 kB / 0.9948 GB, free: 0.9961 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.009e-05/1.509, allocations: 60.5 kB / 0.9949 GB, free: 0.9297 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=208): time 6.388e-06/1.509, allocations: 0 / 0.9949 GB, free: 0.9297 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=277): time 0.1229/1.632, allocations: 25.89 MB / 1.02 GB, free: 6.996 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001721/1.633, allocations: 243.6 kB / 1.02 GB, free: 6.707 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002698/1.635, allocations: 1.27 MB / 1.022 GB, free: 5.426 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005565/1.636, allocations: 73.7 kB / 1.022 GB, free: 5.348 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001419/1.637, allocations: 1.478 MB / 1.023 GB, free: 3.848 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001508/1.639, allocations: 0.9435 MB / 1.024 GB, free: 2.891 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004039/1.639, allocations: 64 kB / 1.024 GB, free: 2.828 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.000377/1.64, allocations: 440.8 kB / 1.025 GB, free: 2.391 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.00497/1.645, allocations: 2.115 MB / 1.027 GB, free: 280 kB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006175/1.651, allocations: 3.007 MB / 1.03 GB, free: 12.88 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005951/1.657, allocations: 2.584 MB / 1.032 GB, free: 10.27 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.28e-05/1.657, allocations: 8 kB / 1.032 GB, free: 10.26 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02327/1.68, allocations: 8.046 MB / 1.04 GB, free: 2.16 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005965/1.686, allocations: 10.62 MB / 1.05 GB, free: 6.695 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.395e-05/1.686, allocations: 28 kB / 1.05 GB, free: 6.668 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03503/1.721, allocations: 6.529 MB / 1.057 GB, free: 132 kB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005183/1.727, allocations: 0.8735 MB / 1.058 GB, free: 15.25 MB / 0.8073 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.06394/1.791, allocations: 14.66 MB / 1.072 GB, free: 432 kB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.009882/1.8, allocations: 0.5261 MB / 1.072 GB, free: 15.89 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001456/1.802, allocations: 195.9 kB / 1.073 GB, free: 15.7 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 2.227e-05/1.802, allocations: 4 kB / 1.073 GB, free: 15.7 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 0.0134/1.815, allocations: 2.602 MB / 1.075 GB, free: 13.07 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated