Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 4.173/4.173, allocations: 460.5 MB / 472.6 MB, free: 5.301 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.736e-05/2.757e-05, allocations: 0 / 0.5681 GB, free: 10.11 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1973/0.1973, allocations: 106.2 MB / 0.6719 GB, free: 15.71 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7764/0.9737, allocations: 193.7 MB / 0.861 GB, free: 3.711 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003416/0.9741, allocations: 118.1 kB / 0.8611 GB, free: 3.641 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5868/1.561, allocations: 138.5 MB / 0.9964 GB, free: 3.125 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 2.399e-06/1.561, allocations: 0 / 0.9964 GB, free: 3.125 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.0001984/1.561, allocations: 79.92 kB / 0.9965 GB, free: 3.047 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.011/1.572, allocations: 2.953 MB / 0.9993 GB, free: 40 kB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 4.829e-05/1.572, allocations: 8.031 kB / 0.9993 GB, free: 32 kB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01834/1.591, allocations: 2.227 MB / 1.002 GB, free: 13.79 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006787/1.597, allocations: 2.185 MB / 1.004 GB, free: 11.56 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003789/1.598, allocations: 271.1 kB / 1.004 GB, free: 11.29 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001781/1.6, allocations: 340 kB / 1.004 GB, free: 10.96 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0196/1.619, allocations: 5.98 MB / 1.01 GB, free: 4.887 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001194/1.62, allocations: 0 / 1.01 GB, free: 4.887 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001204/1.621, allocations: 155.7 kB / 1.01 GB, free: 4.738 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007157/1.621, allocations: 302.1 kB / 1.011 GB, free: 4.441 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01608/1.638, allocations: 5.38 MB / 1.016 GB, free: 15.05 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 0.05279/1.69, allocations: 26.78 MB / 1.042 GB, free: 2.07 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009078/1.7, allocations: 4.468 MB / 1.046 GB, free: 13.28 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004934/1.704, allocations: 2.04 MB / 1.048 GB, free: 11.23 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003597/1.705, allocations: 135 kB / 1.048 GB, free: 11.08 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.362e-05/1.705, allocations: 60.5 kB / 1.048 GB, free: 11.01 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.13e-06/1.705, allocations: 0 / 1.048 GB, free: 11.01 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1244/1.829, allocations: 25.58 MB / 1.073 GB, free: 1.387 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001736/1.83, allocations: 235.6 kB / 1.074 GB, free: 1.105 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002928/1.833, allocations: 1.3 MB / 1.075 GB, free: 15.8 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005938/1.833, allocations: 69.7 kB / 1.075 GB, free: 15.72 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001809/1.835, allocations: 1.505 MB / 1.076 GB, free: 14.2 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001908/1.837, allocations: 0.9396 MB / 1.077 GB, free: 13.24 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004498/1.837, allocations: 64 kB / 1.077 GB, free: 13.18 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003957/1.838, allocations: 456.8 kB / 1.078 GB, free: 12.73 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.00527/1.843, allocations: 2.103 MB / 1.08 GB, free: 10.62 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006597/1.85, allocations: 2.995 MB / 1.083 GB, free: 7.242 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0064/1.856, allocations: 2.569 MB / 1.085 GB, free: 4.648 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.859e-05/1.856, allocations: 8 kB / 1.085 GB, free: 4.641 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.532/2.388, allocations: 7.99 MB / 1.093 GB, free: 234.4 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.002173/2.39, allocations: 10.62 MB / 1.104 GB, free: 223.4 MB / 0.8698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.703e-05/2.391, allocations: 26.75 kB / 1.104 GB, free: 223.4 MB / 0.8698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02821/2.419, allocations: 5.728 MB / 1.109 GB, free: 223.3 MB / 0.8698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005192/2.424, allocations: 0.8761 MB / 1.11 GB, free: 223.3 MB / 0.8698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03108/2.455, allocations: 14.6 MB / 1.124 GB, free: 221.5 MB / 0.8698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004972/2.46, allocations: 0.5304 MB / 1.125 GB, free: 221.5 MB / 0.8698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006588/2.461, allocations: 171.8 kB / 1.125 GB, free: 221.5 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.58e-05/2.461, allocations: 5.844 kB / 1.125 GB, free: 221.5 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 0.006027/2.467, allocations: 2.591 MB / 1.128 GB, free: 221.4 MB / 0.8698 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated