Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 3.784/3.784, allocations: 432.7 MB / 444.9 MB, free: 15.71 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.236e-05/3.248e-05, allocations: 3.766 kB / 0.5337 GB, free: 12.25 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1711/0.1712, allocations: 98.72 MB / 0.6301 GB, free: 6.184 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7312/0.9024, allocations: 186.1 MB / 0.8119 GB, free: 56.98 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003394/0.9028, allocations: 112.9 kB / 0.812 GB, free: 56.98 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5352/1.438, allocations: 134.3 MB / 0.9431 GB, free: 8.633 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.534e-06/1.438, allocations: 3.938 kB / 0.9431 GB, free: 8.629 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0001918/1.438, allocations: 72 kB / 0.9432 GB, free: 8.559 MB / 0.6823 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 0.01073/1.449, allocations: 2.937 MB / 0.9461 GB, free: 5.566 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 4.767e-05/1.449, allocations: 11.97 kB / 0.9461 GB, free: 5.555 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01629/1.465, allocations: 2.126 MB / 0.9481 GB, free: 3.422 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006573/1.472, allocations: 2.17 MB / 0.9503 GB, free: 1.207 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003652/1.472, allocations: 267 kB / 0.9505 GB, free: 0.9453 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001737/1.474, allocations: 352 kB / 0.9509 GB, free: 0.6016 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01824/1.492, allocations: 5.9 MB / 0.9566 GB, free: 10.61 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001111/1.493, allocations: 11.94 kB / 0.9566 GB, free: 10.59 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009294/1.494, allocations: 147.9 kB / 0.9568 GB, free: 10.45 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007107/1.494, allocations: 298 kB / 0.957 GB, free: 10.16 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01572/1.51, allocations: 5.329 MB / 0.9623 GB, free: 4.824 MB / 0.698 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 0.05187/1.562, allocations: 26.65 MB / 0.9883 GB, free: 7.992 MB / 0.7292 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008841/1.571, allocations: 4.468 MB / 0.9926 GB, free: 3.223 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004775/1.576, allocations: 2.056 MB / 0.9946 GB, free: 1.148 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003463/1.576, allocations: 139 kB / 0.9948 GB, free: 0.9922 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.48e-05/1.576, allocations: 60.5 kB / 0.9948 GB, free: 0.9258 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=208): time 6.454e-06/1.576, allocations: 0 / 0.9948 GB, free: 0.9258 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=277): time 0.1275/1.704, allocations: 25.89 MB / 1.02 GB, free: 6.988 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001693/1.704, allocations: 239.6 kB / 1.02 GB, free: 6.703 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002754/1.707, allocations: 1.266 MB / 1.022 GB, free: 5.426 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006064/1.707, allocations: 69.7 kB / 1.022 GB, free: 5.352 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001511/1.709, allocations: 1.478 MB / 1.023 GB, free: 3.852 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001522/1.71, allocations: 0.9396 MB / 1.024 GB, free: 2.898 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000426/1.711, allocations: 64 kB / 1.024 GB, free: 2.836 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003902/1.711, allocations: 448.8 kB / 1.025 GB, free: 2.391 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005053/1.716, allocations: 2.119 MB / 1.027 GB, free: 276 kB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006184/1.722, allocations: 2.995 MB / 1.029 GB, free: 12.89 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006037/1.729, allocations: 2.585 MB / 1.032 GB, free: 10.28 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.449e-05/1.729, allocations: 8 kB / 1.032 GB, free: 10.27 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02375/1.752, allocations: 8.05 MB / 1.04 GB, free: 2.164 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005939/1.758, allocations: 10.62 MB / 1.05 GB, free: 6.707 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.232e-05/1.758, allocations: 32 kB / 1.05 GB, free: 6.676 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03435/1.793, allocations: 6.529 MB / 1.057 GB, free: 140 kB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005226/1.798, allocations: 0.8735 MB / 1.058 GB, free: 15.26 MB / 0.8073 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03247/1.831, allocations: 14.64 MB / 1.072 GB, free: 460 kB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005203/1.836, allocations: 0.5378 MB / 1.072 GB, free: 15.91 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006741/1.837, allocations: 196.3 kB / 1.073 GB, free: 15.72 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.529e-05/1.837, allocations: 4 kB / 1.073 GB, free: 15.71 MB / 0.823 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 0.006424/1.843, allocations: 2.602 MB / 1.075 GB, free: 13.09 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated