Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 3.639/3.639, allocations: 403.3 MB / 415.4 MB, free: 12.89 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.086e-05/3.099e-05, allocations: 4 kB / 0.4991 GB, free: 13.34 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.478/0.4781, allocations: 92.68 MB / 0.5896 GB, free: 14.5 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2597/0.7379, allocations: 182.4 MB / 0.7677 GB, free: 7.785 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003837/0.7383, allocations: 115.9 kB / 0.7678 GB, free: 7.672 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.9016/1.64, allocations: 133.6 MB / 0.8983 GB, free: 67.28 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 3.494e-06/1.64, allocations: 4 kB / 0.8983 GB, free: 67.27 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0002437/1.64, allocations: 72 kB / 0.8984 GB, free: 67.2 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.01045/1.651, allocations: 2.953 MB / 0.9013 GB, free: 64.2 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.324e-05/1.651, allocations: 12.03 kB / 0.9013 GB, free: 64.18 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01486/1.666, allocations: 2.106 MB / 0.9034 GB, free: 62.07 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005603/1.671, allocations: 2.189 MB / 0.9055 GB, free: 59.84 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002595/1.672, allocations: 271.1 kB / 0.9058 GB, free: 59.57 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001516/1.673, allocations: 344 kB / 0.9061 GB, free: 59.23 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01575/1.689, allocations: 5.978 MB / 0.9119 GB, free: 53.16 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001173/1.689, allocations: 3.938 kB / 0.9119 GB, free: 53.15 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000838/1.69, allocations: 148 kB / 0.9121 GB, free: 53.01 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005905/1.691, allocations: 302.1 kB / 0.9124 GB, free: 52.71 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0134/1.704, allocations: 5.399 MB / 0.9176 GB, free: 47.3 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03904/1.743, allocations: 20.37 MB / 0.9375 GB, free: 26.3 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.006818/1.75, allocations: 4.503 MB / 0.9419 GB, free: 21.48 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.003802/1.754, allocations: 2.051 MB / 0.9439 GB, free: 19.41 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002553/1.754, allocations: 143 kB / 0.9441 GB, free: 19.26 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.649e-05/1.754, allocations: 56.5 kB / 0.9441 GB, free: 19.19 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 5.788e-06/1.754, allocations: 0 / 0.9441 GB, free: 19.19 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1145/1.869, allocations: 25.93 MB / 0.9694 GB, free: 9.223 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001607/1.869, allocations: 243.6 kB / 0.9697 GB, free: 8.934 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002799/1.872, allocations: 1.304 MB / 0.9709 GB, free: 7.621 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005811/1.872, allocations: 69.7 kB / 0.971 GB, free: 7.547 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001396/1.874, allocations: 1.493 MB / 0.9725 GB, free: 6.031 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001452/1.875, allocations: 0.9319 MB / 0.9734 GB, free: 5.086 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004151/1.875, allocations: 64 kB / 0.9734 GB, free: 5.023 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.000355/1.876, allocations: 440.8 kB / 0.9739 GB, free: 4.586 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004963/1.881, allocations: 2.126 MB / 0.9759 GB, free: 2.457 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006073/1.887, allocations: 3.009 MB / 0.9789 GB, free: 15.07 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005999/1.893, allocations: 2.588 MB / 0.9814 GB, free: 12.45 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.512e-05/1.893, allocations: 8 kB / 0.9814 GB, free: 12.45 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02301/1.916, allocations: 8.116 MB / 0.9893 GB, free: 4.27 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.00564/1.922, allocations: 10.62 MB / 0.9997 GB, free: 8.805 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.591e-05/1.922, allocations: 28 kB / 0.9997 GB, free: 8.777 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03305/1.955, allocations: 6.513 MB / 1.006 GB, free: 2.25 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004978/1.96, allocations: 0.8735 MB / 1.007 GB, free: 1.375 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03259/1.993, allocations: 14.65 MB / 1.021 GB, free: 2.551 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005033/1.998, allocations: 0.5339 MB / 1.022 GB, free: 2.016 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009073/1.999, allocations: 196.1 kB / 1.022 GB, free: 1.824 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.529e-05/1.999, allocations: 4 kB / 1.022 GB, free: 1.82 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 0.006661/2.005, allocations: 2.648 MB / 1.025 GB, free: 15.15 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated