Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 4.085/4.085, allocations: 464.6 MB / 476.8 MB, free: 2.125 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.905e-05/2.919e-05, allocations: 0 / 0.5731 GB, free: 5.699 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1982/0.1982, allocations: 107.2 MB / 0.6778 GB, free: 10.35 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8269/1.025, allocations: 192.2 MB / 0.8655 GB, free: 11.89 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0008126/1.026, allocations: 111.1 kB / 0.8656 GB, free: 11.83 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5129/1.539, allocations: 123.4 MB / 0.9861 GB, free: 10.59 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 2.022e-06/1.539, allocations: 4 kB / 0.9861 GB, free: 10.58 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.0001854/1.539, allocations: 64 kB / 0.9861 GB, free: 10.52 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: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.009628/1.549, allocations: 2.669 MB / 0.9888 GB, free: 7.793 MB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 4.473e-05/1.549, allocations: 12.03 kB / 0.9888 GB, free: 7.781 MB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01562/1.565, allocations: 2.083 MB / 0.9908 GB, free: 5.691 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00606/1.571, allocations: 2.005 MB / 0.9928 GB, free: 3.641 MB / 0.7761 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003366/1.571, allocations: 230.1 kB / 0.993 GB, free: 3.414 MB / 0.7761 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.00165/1.573, allocations: 300 kB / 0.9933 GB, free: 3.121 MB / 0.7761 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01629/1.589, allocations: 5.279 MB / 0.9984 GB, free: 13.73 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000101/1.589, allocations: 7.938 kB / 0.9984 GB, free: 13.73 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008741/1.59, allocations: 128 kB / 0.9985 GB, free: 13.6 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006676/1.591, allocations: 289.2 kB / 0.9988 GB, free: 13.32 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01384/1.605, allocations: 4.957 MB / 1.004 GB, free: 8.352 MB / 0.7917 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0468/1.651, allocations: 24.77 MB / 1.028 GB, free: 13.52 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.00939/1.661, allocations: 4.949 MB / 1.033 GB, free: 8.207 MB / 0.823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005344/1.666, allocations: 2.306 MB / 1.035 GB, free: 5.887 MB / 0.823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003953/1.667, allocations: 139 kB / 1.035 GB, free: 5.73 MB / 0.823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.147e-05/1.667, allocations: 64.48 kB / 1.035 GB, free: 5.66 MB / 0.823 GB
Notification: Performance of pre-optimization done (n=230): time 7.055e-06/1.667, allocations: 0 / 1.035 GB, free: 5.66 MB / 0.823 GB
Notification: Performance of matching and sorting (n=311): time 0.1508/1.818, allocations: 30.93 MB / 1.065 GB, free: 6.719 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001774/1.818, allocations: 243.9 kB / 1.066 GB, free: 6.43 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002559/1.82, allocations: 1.115 MB / 1.067 GB, free: 5.297 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007114/1.821, allocations: 73.7 kB / 1.067 GB, free: 5.219 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001334/1.823, allocations: 1.231 MB / 1.068 GB, free: 3.969 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001828/1.824, allocations: 1.047 MB / 1.069 GB, free: 2.906 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004701/1.825, allocations: 64 kB / 1.069 GB, free: 2.844 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.0003942/1.825, allocations: 444.7 kB / 1.069 GB, free: 2.402 MB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005296/1.831, allocations: 2.232 MB / 1.072 GB, free: 172 kB / 0.8542 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006324/1.837, allocations: 2.916 MB / 1.074 GB, free: 12.98 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006207/1.843, allocations: 2.652 MB / 1.077 GB, free: 10.31 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.961e-05/1.843, allocations: 8 kB / 1.077 GB, free: 10.3 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02381/1.867, allocations: 8.365 MB / 1.085 GB, free: 1.883 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004217/1.871, allocations: 7.319 MB / 1.092 GB, free: 9.984 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.371e-05/1.872, allocations: 20 kB / 1.092 GB, free: 9.965 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03397/1.905, allocations: 6.755 MB / 1.099 GB, free: 3.199 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004949/1.91, allocations: 0.8228 MB / 1.1 GB, free: 2.375 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.5307/2.441, allocations: 16.65 MB / 1.116 GB, free: 252.1 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005015/2.446, allocations: 0.506 MB / 1.117 GB, free: 252.1 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009934/2.447, allocations: 187.7 kB / 1.117 GB, free: 252.1 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.567e-05/2.447, allocations: 2.938 kB / 1.117 GB, free: 252.1 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 0.006849/2.454, allocations: 2.675 MB / 1.119 GB, free: 252 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated