Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 4.032/4.032, allocations: 464.6 MB / 476.8 MB, free: 2.223 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 5.389e-05/5.412e-05, allocations: 4 kB / 0.5731 GB, free: 5.719 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.223/0.2231, allocations: 107.2 MB / 0.6778 GB, free: 10.38 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.918/1.141, allocations: 193.4 MB / 0.8667 GB, free: 10.73 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003729/1.142, allocations: 119.3 kB / 0.8668 GB, free: 10.66 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4988/1.64, allocations: 134.3 MB / 0.9979 GB, free: 14.29 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 2.465e-06/1.64, allocations: 0 / 0.9979 GB, free: 14.29 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0001711/1.641, allocations: 76 kB / 0.998 GB, free: 14.21 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: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.009712/1.65, allocations: 2.937 MB / 1.001 GB, free: 11.22 MB / 0.7917 GB
Notification: Performance of prepare preOptimizeDAE: time 4.375e-05/1.65, allocations: 8.031 kB / 1.001 GB, free: 11.21 MB / 0.7917 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0154/1.666, allocations: 2.129 MB / 1.003 GB, free: 9.078 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006435/1.672, allocations: 2.181 MB / 1.005 GB, free: 6.852 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003717/1.673, allocations: 263.1 kB / 1.005 GB, free: 6.594 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001681/1.674, allocations: 344 kB / 1.006 GB, free: 6.258 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01938/1.694, allocations: 5.904 MB / 1.011 GB, free: 264 kB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0002082/1.694, allocations: 7.938 kB / 1.011 GB, free: 256 kB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00197/1.696, allocations: 148 kB / 1.012 GB, free: 108 kB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00113/1.697, allocations: 298 kB / 1.012 GB, free: 15.81 MB / 0.8073 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0163/1.713, allocations: 5.329 MB / 1.017 GB, free: 10.48 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 0.0492/1.763, allocations: 26.67 MB / 1.043 GB, free: 13.62 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008415/1.771, allocations: 4.472 MB / 1.047 GB, free: 8.852 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004601/1.776, allocations: 2.04 MB / 1.049 GB, free: 6.785 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003211/1.776, allocations: 143 kB / 1.05 GB, free: 6.625 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.694e-05/1.776, allocations: 60.5 kB / 1.05 GB, free: 6.559 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.221e-06/1.776, allocations: 0 / 1.05 GB, free: 6.559 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1213/1.898, allocations: 25.89 MB / 1.075 GB, free: 12.62 MB / 0.8698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000177/1.898, allocations: 243.6 kB / 1.075 GB, free: 12.34 MB / 0.8698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002638/1.9, allocations: 1.266 MB / 1.076 GB, free: 11.06 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005269/1.901, allocations: 65.7 kB / 1.076 GB, free: 10.99 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001389/1.902, allocations: 1.486 MB / 1.078 GB, free: 9.48 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001399/1.904, allocations: 0.9357 MB / 1.079 GB, free: 8.531 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003721/1.904, allocations: 72 kB / 1.079 GB, free: 8.461 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003606/1.905, allocations: 440.8 kB / 1.079 GB, free: 8.023 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004676/1.909, allocations: 2.119 MB / 1.081 GB, free: 5.902 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005801/1.915, allocations: 2.999 MB / 1.084 GB, free: 2.523 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005783/1.921, allocations: 2.59 MB / 1.087 GB, free: 15.91 MB / 0.8855 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.962e-05/1.921, allocations: 8 kB / 1.087 GB, free: 15.9 MB / 0.8855 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02262/1.944, allocations: 8.053 MB / 1.095 GB, free: 7.789 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.6216/2.565, allocations: 10.61 MB / 1.105 GB, free: 242.7 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.173e-05/2.565, allocations: 26.91 kB / 1.105 GB, free: 242.7 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03365/2.599, allocations: 6.527 MB / 1.111 GB, free: 242.7 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004948/2.604, allocations: 0.8718 MB / 1.112 GB, free: 242.7 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03054/2.635, allocations: 14.64 MB / 1.127 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004794/2.639, allocations: 0.5284 MB / 1.127 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008245/2.64, allocations: 198.6 kB / 1.127 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.571e-05/2.64, allocations: 8.219 kB / 1.127 GB, free: 240.9 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 0.005811/2.646, allocations: 2.596 MB / 1.13 GB, free: 240.8 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated