Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 3.502/3.502, allocations: 403.3 MB / 415.4 MB, free: 12.96 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.308e-05/3.31e-05, allocations: 4 kB / 0.4991 GB, free: 13.41 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.5501/0.5502, allocations: 92.68 MB / 0.5896 GB, free: 14.49 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2696/0.8198, allocations: 182 MB / 0.7673 GB, free: 8.254 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003744/0.8202, allocations: 123.9 kB / 0.7674 GB, free: 8.133 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8556/1.676, allocations: 133 MB / 0.8973 GB, free: 68.32 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.479e-06/1.676, allocations: 0 / 0.8973 GB, free: 68.32 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001584/1.676, allocations: 68 kB / 0.8974 GB, free: 68.25 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: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.009601/1.686, allocations: 2.933 MB / 0.9002 GB, free: 65.26 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.309e-05/1.686, allocations: 8.031 kB / 0.9002 GB, free: 65.25 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01498/1.701, allocations: 2.106 MB / 0.9023 GB, free: 63.14 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005829/1.707, allocations: 2.174 MB / 0.9044 GB, free: 60.92 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000302/1.707, allocations: 279 kB / 0.9047 GB, free: 60.65 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001732/1.709, allocations: 340 kB / 0.905 GB, free: 60.32 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01586/1.725, allocations: 5.904 MB / 0.9108 GB, free: 54.31 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.745e-05/1.725, allocations: 11.94 kB / 0.9108 GB, free: 54.3 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00069/1.725, allocations: 140 kB / 0.9109 GB, free: 54.16 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005613/1.726, allocations: 302 kB / 0.9112 GB, free: 53.87 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01267/1.739, allocations: 5.329 MB / 0.9164 GB, free: 48.53 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03676/1.776, allocations: 20.28 MB / 0.9362 GB, free: 27.61 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.006749/1.782, allocations: 4.457 MB / 0.9406 GB, free: 22.85 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.003812/1.786, allocations: 2.055 MB / 0.9426 GB, free: 20.78 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002883/1.786, allocations: 135 kB / 0.9427 GB, free: 20.62 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.004e-05/1.787, allocations: 76.42 kB / 0.9428 GB, free: 20.54 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 5.939e-06/1.787, allocations: 0 / 0.9428 GB, free: 20.54 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1112/1.898, allocations: 25.88 MB / 0.968 GB, free: 10.61 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001609/1.898, allocations: 239.6 kB / 0.9683 GB, free: 10.33 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002663/1.901, allocations: 1.262 MB / 0.9695 GB, free: 9.055 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006004/1.901, allocations: 73.7 kB / 0.9696 GB, free: 8.977 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.00141/1.903, allocations: 1.47 MB / 0.971 GB, free: 7.484 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001505/1.904, allocations: 0.9358 MB / 0.9719 GB, free: 6.535 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004752/1.905, allocations: 64 kB / 0.972 GB, free: 6.473 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003855/1.905, allocations: 440.8 kB / 0.9724 GB, free: 6.035 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004882/1.91, allocations: 2.123 MB / 0.9745 GB, free: 3.91 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005958/1.916, allocations: 3.003 MB / 0.9774 GB, free: 0.5273 MB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005836/1.922, allocations: 2.581 MB / 0.9799 GB, free: 13.92 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.976e-05/1.922, allocations: 11.95 kB / 0.9799 GB, free: 13.91 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02273/1.945, allocations: 8.035 MB / 0.9878 GB, free: 5.816 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005648/1.95, allocations: 10.62 MB / 0.9982 GB, free: 10.36 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.917e-05/1.951, allocations: 32 kB / 0.9982 GB, free: 10.33 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03303/1.984, allocations: 6.513 MB / 1.005 GB, free: 3.801 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004948/1.989, allocations: 0.8696 MB / 1.005 GB, free: 2.93 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0315/2.02, allocations: 14.65 MB / 1.02 GB, free: 4.105 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004833/2.025, allocations: 0.5378 MB / 1.02 GB, free: 3.566 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007497/2.026, allocations: 191.9 kB / 1.02 GB, free: 3.379 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.406e-05/2.026, allocations: 4 kB / 1.02 GB, free: 3.375 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 0.006193/2.032, allocations: 2.602 MB / 1.023 GB, free: 0.75 MB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated