Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 3.614/3.614, allocations: 403.3 MB / 415.4 MB, free: 12.99 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.502e-05/3.514e-05, allocations: 4 kB / 0.4991 GB, free: 13.41 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4786/0.4786, allocations: 92.69 MB / 0.5896 GB, free: 14.48 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2575/0.7362, allocations: 180.8 MB / 0.7661 GB, free: 9.453 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000381/0.7366, allocations: 115.9 kB / 0.7662 GB, free: 9.34 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8263/1.563, allocations: 122.3 MB / 0.8856 GB, free: 80.35 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.333e-06/1.563, allocations: 0 / 0.8856 GB, free: 80.35 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001524/1.563, allocations: 64 kB / 0.8857 GB, free: 80.29 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: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.00835/1.572, allocations: 2.666 MB / 0.8883 GB, free: 77.56 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.328e-05/1.572, allocations: 8.031 kB / 0.8883 GB, free: 77.55 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01448/1.586, allocations: 2.067 MB / 0.8903 GB, free: 75.48 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005146/1.591, allocations: 1.993 MB / 0.8923 GB, free: 73.44 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002486/1.592, allocations: 230.1 kB / 0.8925 GB, free: 73.21 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.00144/1.593, allocations: 300 kB / 0.8928 GB, free: 72.92 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01438/1.607, allocations: 5.294 MB / 0.898 GB, free: 67.52 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001045/1.608, allocations: 3.938 kB / 0.898 GB, free: 67.52 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001082/1.609, allocations: 128 kB / 0.8981 GB, free: 67.39 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005789/1.609, allocations: 289.2 kB / 0.8984 GB, free: 67.11 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01219/1.621, allocations: 4.954 MB / 0.9032 GB, free: 62.14 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03405/1.656, allocations: 18.4 MB / 0.9212 GB, free: 43.22 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.007085/1.663, allocations: 4.928 MB / 0.926 GB, free: 37.95 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004226/1.667, allocations: 2.318 MB / 0.9282 GB, free: 35.62 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003085/1.667, allocations: 139 kB / 0.9284 GB, free: 35.46 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.988e-05/1.667, allocations: 64.5 kB / 0.9284 GB, free: 35.39 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=230): time 6.214e-06/1.667, allocations: 4 kB / 0.9284 GB, free: 35.39 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=311): time 0.1359/1.803, allocations: 30.93 MB / 0.9586 GB, free: 4.445 MB / 0.6511 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.275e-05/1.803, allocations: 243.9 kB / 0.9589 GB, free: 4.156 MB / 0.6511 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001904/1.805, allocations: 1.111 MB / 0.96 GB, free: 3.027 MB / 0.6511 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006079/1.806, allocations: 77.7 kB / 0.96 GB, free: 2.945 MB / 0.6511 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006826/1.807, allocations: 1.223 MB / 0.9612 GB, free: 1.703 MB / 0.6511 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001213/1.808, allocations: 1.04 MB / 0.9622 GB, free: 0.6484 MB / 0.6511 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003878/1.808, allocations: 68 kB / 0.9623 GB, free: 0.582 MB / 0.6511 GB
Notification: Performance of setup shared object (initialization): time 0.0002178/1.808, allocations: 448.7 kB / 0.9627 GB, free: 140 kB / 0.6511 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005206/1.814, allocations: 2.232 MB / 0.9649 GB, free: 13.9 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00643/1.82, allocations: 2.904 MB / 0.9678 GB, free: 10.73 MB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006341/1.827, allocations: 2.654 MB / 0.9703 GB, free: 8.051 MB / 0.6667 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.928e-05/1.827, allocations: 4 kB / 0.9703 GB, free: 8.047 MB / 0.6667 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02418/1.851, allocations: 8.365 MB / 0.9785 GB, free: 15.63 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004016/1.855, allocations: 7.327 MB / 0.9857 GB, free: 7.727 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.619e-05/1.855, allocations: 24 kB / 0.9857 GB, free: 7.703 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03363/1.889, allocations: 6.719 MB / 0.9923 GB, free: 0.9688 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00481/1.893, allocations: 0.8268 MB / 0.9931 GB, free: 144 kB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03659/1.93, allocations: 16.66 MB / 1.009 GB, free: 15.31 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004851/1.935, allocations: 0.5068 MB / 1.01 GB, free: 14.8 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001008/1.936, allocations: 183.9 kB / 1.01 GB, free: 14.62 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.637e-05/1.936, allocations: 4 kB / 1.01 GB, free: 14.62 MB / 0.7136 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 0.007062/1.943, allocations: 2.676 MB / 1.013 GB, free: 11.93 MB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated