Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 3.733/3.733, allocations: 403.3 MB / 415.4 MB, free: 13 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.641e-05/3.654e-05, allocations: 4 kB / 0.4991 GB, free: 13.41 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.558/0.5581, allocations: 92.68 MB / 0.5896 GB, free: 14.48 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2636/0.8217, allocations: 182.6 MB / 0.7679 GB, free: 7.617 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004645/0.8222, allocations: 115.9 kB / 0.768 GB, free: 7.504 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8978/1.72, allocations: 137.2 MB / 0.902 GB, free: 63.51 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 1.821e-06/1.72, allocations: 0 / 0.902 GB, free: 63.51 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001584/1.72, allocations: 79.92 kB / 0.902 GB, free: 63.43 MB / 0.6511 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 0.009068/1.729, allocations: 2.945 MB / 0.9049 GB, free: 60.43 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.209e-05/1.729, allocations: 15.92 kB / 0.9049 GB, free: 60.42 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01597/1.745, allocations: 2.211 MB / 0.9071 GB, free: 58.2 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005719/1.751, allocations: 2.181 MB / 0.9092 GB, free: 55.97 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004498/1.752, allocations: 275.1 kB / 0.9095 GB, free: 55.7 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002085/1.754, allocations: 348 kB / 0.9098 GB, free: 55.36 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01706/1.771, allocations: 6.013 MB / 0.9157 GB, free: 49.25 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001231/1.771, allocations: 4 kB / 0.9157 GB, free: 49.24 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001216/1.772, allocations: 152 kB / 0.9158 GB, free: 49.09 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005762/1.773, allocations: 302.1 kB / 0.9161 GB, free: 48.8 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01352/1.786, allocations: 5.43 MB / 0.9214 GB, free: 43.36 MB / 0.6511 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 0.03855/1.825, allocations: 20.4 MB / 0.9413 GB, free: 22.3 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.007982/1.833, allocations: 4.502 MB / 0.9457 GB, free: 17.49 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.00407/1.837, allocations: 2.047 MB / 0.9477 GB, free: 15.43 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003272/1.837, allocations: 135 kB / 0.9479 GB, free: 15.27 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.603e-05/1.838, allocations: 60.56 kB / 0.9479 GB, free: 15.21 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 5.914e-06/1.838, allocations: 0 / 0.9479 GB, free: 15.21 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1145/1.952, allocations: 25.58 MB / 0.9729 GB, free: 5.582 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001611/1.952, allocations: 243.6 kB / 0.9731 GB, free: 5.293 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002832/1.955, allocations: 1.304 MB / 0.9744 GB, free: 3.98 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005592/1.956, allocations: 65.7 kB / 0.9745 GB, free: 3.91 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001463/1.957, allocations: 1.493 MB / 0.9759 GB, free: 2.395 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001522/1.959, allocations: 0.9396 MB / 0.9769 GB, free: 1.441 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004834/1.959, allocations: 68 kB / 0.9769 GB, free: 1.375 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0004212/1.96, allocations: 448.8 kB / 0.9773 GB, free: 0.9297 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005296/1.965, allocations: 2.103 MB / 0.9794 GB, free: 14.82 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006179/1.971, allocations: 3.009 MB / 0.9823 GB, free: 11.43 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00597/1.977, allocations: 2.581 MB / 0.9849 GB, free: 8.824 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.32e-05/1.977, allocations: 8 kB / 0.9849 GB, free: 8.816 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02472/2.002, allocations: 8.05 MB / 0.9927 GB, free: 0.7109 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005688/2.008, allocations: 10.63 MB / 1.003 GB, free: 5.242 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.55e-05/2.008, allocations: 28 kB / 1.003 GB, free: 5.215 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02838/2.036, allocations: 5.706 MB / 1.009 GB, free: 15.49 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005534/2.042, allocations: 0.8812 MB / 1.01 GB, free: 14.61 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03372/2.076, allocations: 14.58 MB / 1.024 GB, free: 15.86 MB / 0.7292 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005401/2.081, allocations: 0.5378 MB / 1.024 GB, free: 15.32 MB / 0.7292 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009458/2.082, allocations: 175.9 kB / 1.024 GB, free: 15.15 MB / 0.7292 GB
Notification: Performance of prepare postOptimizeDAE: time 1.517e-05/2.082, allocations: 4 kB / 1.024 GB, free: 15.15 MB / 0.7292 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 0.008158/2.09, allocations: 2.64 MB / 1.027 GB, free: 12.48 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated