Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 3.652/3.652, allocations: 403.3 MB / 415.4 MB, free: 12.97 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.126e-05/3.132e-05, allocations: 3.938 kB / 0.4991 GB, free: 13.4 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4772/0.4772, allocations: 92.68 MB / 0.5896 GB, free: 14.48 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2561/0.7334, allocations: 181.8 MB / 0.7671 GB, free: 8.387 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003695/0.7338, allocations: 111.9 kB / 0.7672 GB, free: 8.277 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.9814/1.715, allocations: 133.2 MB / 0.8973 GB, free: 68.25 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.12e-06/1.715, allocations: 0 / 0.8973 GB, free: 68.25 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001629/1.715, allocations: 68 kB / 0.8974 GB, free: 68.19 MB / 0.6511 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 0.009123/1.725, allocations: 2.925 MB / 0.9002 GB, free: 65.21 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.235e-05/1.725, allocations: 8.031 kB / 0.9002 GB, free: 65.2 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01446/1.739, allocations: 2.098 MB / 0.9023 GB, free: 63.09 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005568/1.745, allocations: 2.185 MB / 0.9044 GB, free: 60.86 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002776/1.745, allocations: 263.1 kB / 0.9047 GB, free: 60.61 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001661/1.747, allocations: 348 kB / 0.905 GB, free: 60.27 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01819/1.765, allocations: 5.941 MB / 0.9108 GB, free: 54.22 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000124/1.765, allocations: 7.938 kB / 0.9108 GB, free: 54.21 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001261/1.766, allocations: 140 kB / 0.9109 GB, free: 54.08 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006468/1.767, allocations: 306 kB / 0.9112 GB, free: 53.78 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01405/1.781, allocations: 5.383 MB / 0.9165 GB, free: 48.39 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03739/1.819, allocations: 20.28 MB / 0.9363 GB, free: 27.46 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.006865/1.825, allocations: 4.506 MB / 0.9407 GB, free: 22.65 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.003775/1.829, allocations: 2.047 MB / 0.9427 GB, free: 20.58 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002597/1.83, allocations: 139 kB / 0.9428 GB, free: 20.43 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.803e-05/1.83, allocations: 60.55 kB / 0.9429 GB, free: 20.36 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 6.533e-06/1.83, allocations: 0 / 0.9429 GB, free: 20.36 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1141/1.944, allocations: 25.89 MB / 0.9682 GB, free: 10.43 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001714/1.944, allocations: 243.6 kB / 0.9684 GB, free: 10.14 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002659/1.947, allocations: 1.262 MB / 0.9696 GB, free: 8.871 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0008188/1.948, allocations: 69.7 kB / 0.9697 GB, free: 8.797 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001437/1.949, allocations: 1.474 MB / 0.9711 GB, free: 7.301 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00151/1.951, allocations: 0.9396 MB / 0.9721 GB, free: 6.348 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004654/1.951, allocations: 68 kB / 0.9721 GB, free: 6.281 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003785/1.951, allocations: 440.8 kB / 0.9725 GB, free: 5.844 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005002/1.956, allocations: 2.115 MB / 0.9746 GB, free: 3.727 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006464/1.963, allocations: 3.021 MB / 0.9776 GB, free: 332 kB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006011/1.969, allocations: 2.588 MB / 0.9801 GB, free: 13.71 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.179e-05/1.969, allocations: 11.95 kB / 0.9801 GB, free: 13.7 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02329/1.992, allocations: 8.108 MB / 0.988 GB, free: 5.531 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005756/1.998, allocations: 10.63 MB / 0.9984 GB, free: 10.06 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.978e-05/1.998, allocations: 31.98 kB / 0.9984 GB, free: 10.03 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0331/2.031, allocations: 6.506 MB / 1.005 GB, free: 3.512 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005325/2.037, allocations: 0.8813 MB / 1.006 GB, free: 2.629 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03341/2.07, allocations: 14.64 MB / 1.02 GB, free: 3.812 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0049/2.075, allocations: 0.5339 MB / 1.02 GB, free: 3.277 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007567/2.076, allocations: 191.9 kB / 1.021 GB, free: 3.09 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.816e-05/2.076, allocations: 9.875 kB / 1.021 GB, free: 3.082 MB / 0.7136 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 0.006539/2.083, allocations: 2.652 MB / 1.023 GB, free: 416 kB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated