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 3.647/3.647, allocations: 403.3 MB / 415.4 MB, free: 12.97 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.863e-05/2.875e-05, allocations: 0 / 0.4991 GB, free: 13.4 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4905/0.4906, allocations: 92.69 MB / 0.5896 GB, free: 14.48 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2562/0.7468, allocations: 182.4 MB / 0.7678 GB, free: 7.766 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003664/0.7472, allocations: 115.9 kB / 0.7679 GB, free: 7.652 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8875/1.635, allocations: 133.6 MB / 0.8984 GB, free: 67.23 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.588e-06/1.635, allocations: 0 / 0.8984 GB, free: 67.23 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001568/1.635, allocations: 72 kB / 0.8984 GB, free: 67.16 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 0.009134/1.644, allocations: 2.953 MB / 0.9013 GB, free: 64.15 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.364e-05/1.644, allocations: 12.02 kB / 0.9013 GB, free: 64.14 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01536/1.66, allocations: 2.102 MB / 0.9034 GB, free: 62.03 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005604/1.665, allocations: 2.185 MB / 0.9055 GB, free: 59.8 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002546/1.665, allocations: 267.1 kB / 0.9058 GB, free: 59.54 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001525/1.667, allocations: 352 kB / 0.9061 GB, free: 59.19 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0154/1.682, allocations: 5.936 MB / 0.9119 GB, free: 53.16 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001065/1.683, allocations: 8 kB / 0.9119 GB, free: 53.15 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001108/1.684, allocations: 148 kB / 0.9121 GB, free: 53 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006403/1.684, allocations: 302 kB / 0.9124 GB, free: 52.71 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01306/1.697, allocations: 5.341 MB / 0.9176 GB, free: 47.36 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03746/1.735, allocations: 20.38 MB / 0.9375 GB, free: 26.34 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.006967/1.742, allocations: 4.473 MB / 0.9418 GB, free: 21.57 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.003866/1.746, allocations: 2.043 MB / 0.9438 GB, free: 19.5 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000296/1.746, allocations: 143 kB / 0.944 GB, free: 19.34 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.659e-05/1.746, allocations: 60.5 kB / 0.944 GB, free: 19.28 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 6.9e-06/1.746, allocations: 0 / 0.944 GB, free: 19.28 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1176/1.864, allocations: 25.92 MB / 0.9693 GB, free: 9.309 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001642/1.864, allocations: 243.6 kB / 0.9696 GB, free: 9.02 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00282/1.867, allocations: 1.3 MB / 0.9708 GB, free: 7.711 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005729/1.868, allocations: 77.62 kB / 0.9709 GB, free: 7.629 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001385/1.869, allocations: 1.486 MB / 0.9724 GB, free: 6.121 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001501/1.87, allocations: 0.9319 MB / 0.9733 GB, free: 5.176 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004342/1.871, allocations: 68 kB / 0.9733 GB, free: 5.109 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003647/1.871, allocations: 444.8 kB / 0.9738 GB, free: 4.668 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004923/1.876, allocations: 2.122 MB / 0.9758 GB, free: 2.543 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006087/1.882, allocations: 2.991 MB / 0.9788 GB, free: 15.17 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005889/1.888, allocations: 2.588 MB / 0.9813 GB, free: 12.56 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.634e-05/1.888, allocations: 8 kB / 0.9813 GB, free: 12.55 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02375/1.912, allocations: 8.042 MB / 0.9891 GB, free: 4.449 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005756/1.918, allocations: 10.62 MB / 0.9995 GB, free: 8.984 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.312e-05/1.918, allocations: 28 kB / 0.9995 GB, free: 8.957 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03398/1.952, allocations: 6.51 MB / 1.006 GB, free: 2.434 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0053/1.957, allocations: 0.8696 MB / 1.007 GB, free: 1.562 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03218/1.99, allocations: 14.66 MB / 1.021 GB, free: 2.723 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005377/1.995, allocations: 0.534 MB / 1.022 GB, free: 2.188 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009831/1.996, allocations: 187.9 kB / 1.022 GB, free: 2.004 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.258e-05/1.996, allocations: 4 kB / 1.022 GB, free: 2 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 0.006893/2.003, allocations: 2.609 MB / 1.024 GB, free: 15.37 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated