Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 4.192/4.192, allocations: 464.7 MB / 476.8 MB, free: 2.117 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.425e-05/3.417e-05, allocations: 4 kB / 0.5731 GB, free: 5.684 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.195/0.195, allocations: 107.2 MB / 0.6778 GB, free: 10.34 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8192/1.014, allocations: 194 MB / 0.8673 GB, free: 10.04 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003562/1.015, allocations: 117.1 kB / 0.8674 GB, free: 9.965 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5371/1.552, allocations: 138.5 MB / 1.003 GB, free: 9.316 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 2.343e-06/1.552, allocations: 0 / 1.003 GB, free: 9.316 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0001985/1.552, allocations: 72 kB / 1.003 GB, free: 9.246 MB / 0.7917 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 0.01059/1.563, allocations: 2.961 MB / 1.006 GB, free: 6.23 MB / 0.7917 GB
Notification: Performance of prepare preOptimizeDAE: time 4.887e-05/1.563, allocations: 8.031 kB / 1.006 GB, free: 6.223 MB / 0.7917 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01673/1.579, allocations: 2.227 MB / 1.008 GB, free: 3.988 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006532/1.586, allocations: 2.185 MB / 1.01 GB, free: 1.754 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003747/1.586, allocations: 275.1 kB / 1.01 GB, free: 1.484 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001687/1.588, allocations: 348 kB / 1.011 GB, free: 1.145 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01934/1.607, allocations: 5.967 MB / 1.016 GB, free: 11.08 MB / 0.8073 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001579/1.608, allocations: 7.984 kB / 1.016 GB, free: 11.07 MB / 0.8073 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00162/1.609, allocations: 148 kB / 1.017 GB, free: 10.93 MB / 0.8073 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007403/1.61, allocations: 306.1 kB / 1.017 GB, free: 10.63 MB / 0.8073 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01569/1.626, allocations: 5.372 MB / 1.022 GB, free: 5.254 MB / 0.8073 GB
Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05115/1.677, allocations: 26.79 MB / 1.048 GB, free: 8.258 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008916/1.686, allocations: 4.457 MB / 1.053 GB, free: 3.496 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004816/1.691, allocations: 2.044 MB / 1.055 GB, free: 1.426 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003687/1.691, allocations: 135 kB / 1.055 GB, free: 1.277 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.559e-05/1.691, allocations: 64.5 kB / 1.055 GB, free: 1.203 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.628e-06/1.691, allocations: 3.938 kB / 1.055 GB, free: 1.199 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1197/1.811, allocations: 25.58 MB / 1.08 GB, free: 7.57 MB / 0.8698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000171/1.811, allocations: 235.6 kB / 1.08 GB, free: 7.289 MB / 0.8698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002807/1.814, allocations: 1.3 MB / 1.081 GB, free: 5.98 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005804/1.815, allocations: 69.7 kB / 1.081 GB, free: 5.906 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001499/1.816, allocations: 1.509 MB / 1.083 GB, free: 4.375 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001554/1.818, allocations: 0.9396 MB / 1.084 GB, free: 3.422 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004153/1.818, allocations: 71.94 kB / 1.084 GB, free: 3.352 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003749/1.819, allocations: 440.8 kB / 1.084 GB, free: 2.914 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005029/1.824, allocations: 2.103 MB / 1.086 GB, free: 0.8086 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006239/1.83, allocations: 2.995 MB / 1.089 GB, free: 13.43 MB / 0.8855 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006055/1.836, allocations: 2.578 MB / 1.092 GB, free: 10.82 MB / 0.8855 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.24e-05/1.836, allocations: 8 kB / 1.092 GB, free: 10.82 MB / 0.8855 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02348/1.86, allocations: 7.991 MB / 1.1 GB, free: 2.773 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.5207/2.38, allocations: 10.62 MB / 1.11 GB, free: 236.7 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.011e-05/2.38, allocations: 27.62 kB / 1.11 GB, free: 236.7 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02842/2.409, allocations: 5.731 MB / 1.115 GB, free: 236.6 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005233/2.414, allocations: 0.8742 MB / 1.116 GB, free: 236.6 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0311/2.445, allocations: 14.59 MB / 1.131 GB, free: 234.8 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004957/2.45, allocations: 0.5329 MB / 1.131 GB, free: 234.8 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008012/2.451, allocations: 174.8 kB / 1.131 GB, free: 234.8 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.504e-05/2.451, allocations: 3.969 kB / 1.131 GB, free: 234.8 MB / 0.8855 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 0.006052/2.457, allocations: 2.586 MB / 1.134 GB, free: 234.7 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated