Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 4.172/4.172, allocations: 460.5 MB / 472.6 MB, free: 5.367 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.87e-05/2.867e-05, allocations: 4 kB / 0.5681 GB, free: 10.12 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1987/0.1988, allocations: 106.2 MB / 0.6719 GB, free: 15.71 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8179/1.017, allocations: 193 MB / 0.8604 GB, free: 4.359 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003883/1.017, allocations: 117.5 kB / 0.8605 GB, free: 4.289 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5302/1.547, allocations: 134.3 MB / 0.9916 GB, free: 8.008 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 3.387e-06/1.547, allocations: 0 / 0.9916 GB, free: 8.008 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.0002689/1.548, allocations: 75.98 kB / 0.9917 GB, free: 7.934 MB / 0.7761 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 0.01627/1.564, allocations: 2.934 MB / 0.9946 GB, free: 4.945 MB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 5.832e-05/1.564, allocations: 8.031 kB / 0.9946 GB, free: 4.938 MB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02992/1.594, allocations: 2.122 MB / 0.9966 GB, free: 2.809 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01041/1.605, allocations: 2.17 MB / 0.9988 GB, free: 0.5938 MB / 0.7761 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004786/1.605, allocations: 271 kB / 0.999 GB, free: 336 kB / 0.7761 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001954/1.607, allocations: 347.9 kB / 0.9994 GB, free: 15.98 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02689/1.634, allocations: 5.896 MB / 1.005 GB, free: 9.992 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001579/1.634, allocations: 4 kB / 1.005 GB, free: 9.988 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001041/1.635, allocations: 151.9 kB / 1.005 GB, free: 9.84 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007021/1.636, allocations: 309.9 kB / 1.006 GB, free: 9.535 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01602/1.652, allocations: 5.333 MB / 1.011 GB, free: 4.199 MB / 0.7917 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 0.05076/1.703, allocations: 26.66 MB / 1.037 GB, free: 7.359 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008791/1.712, allocations: 4.477 MB / 1.041 GB, free: 2.57 MB / 0.823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004712/1.716, allocations: 2.052 MB / 1.043 GB, free: 0.5039 MB / 0.823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003269/1.717, allocations: 131 kB / 1.043 GB, free: 364 kB / 0.823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.219e-05/1.717, allocations: 64.56 kB / 1.043 GB, free: 292 kB / 0.823 GB
Notification: Performance of pre-optimization done (n=208): time 5.979e-06/1.717, allocations: 0 / 1.043 GB, free: 292 kB / 0.823 GB
Notification: Performance of matching and sorting (n=277): time 0.127/1.844, allocations: 25.87 MB / 1.069 GB, free: 6.367 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001718/1.844, allocations: 243.6 kB / 1.069 GB, free: 6.078 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003065/1.847, allocations: 1.266 MB / 1.07 GB, free: 4.801 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006766/1.848, allocations: 69.7 kB / 1.07 GB, free: 4.727 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001371/1.849, allocations: 1.482 MB / 1.072 GB, free: 3.223 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001284/1.851, allocations: 0.9435 MB / 1.073 GB, free: 2.266 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003571/1.851, allocations: 64 kB / 1.073 GB, free: 2.203 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.0003591/1.851, allocations: 444.8 kB / 1.073 GB, free: 1.762 MB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004721/1.856, allocations: 2.115 MB / 1.075 GB, free: 15.64 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005839/1.862, allocations: 3.003 MB / 1.078 GB, free: 12.26 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005915/1.868, allocations: 2.585 MB / 1.081 GB, free: 9.648 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.525e-05/1.868, allocations: 8 kB / 1.081 GB, free: 9.641 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02374/1.892, allocations: 8.05 MB / 1.088 GB, free: 1.531 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.5527/2.444, allocations: 10.62 MB / 1.099 GB, free: 226.8 MB / 0.8698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001299/2.445, allocations: 31.83 kB / 1.099 GB, free: 226.8 MB / 0.8698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03547/2.48, allocations: 6.53 MB / 1.105 GB, free: 226.7 MB / 0.8698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005184/2.485, allocations: 0.8748 MB / 1.106 GB, free: 226.7 MB / 0.8698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0318/2.517, allocations: 14.63 MB / 1.12 GB, free: 224.9 MB / 0.8698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00508/2.522, allocations: 0.5338 MB / 1.121 GB, free: 224.9 MB / 0.8698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009018/2.523, allocations: 197 kB / 1.121 GB, free: 224.9 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.605e-05/2.523, allocations: 7.266 kB / 1.121 GB, free: 224.9 MB / 0.8698 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 0.006401/2.53, allocations: 2.603 MB / 1.124 GB, free: 224.8 MB / 0.8698 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated