Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 3.862/3.862, allocations: 432.8 MB / 444.9 MB, free: 15.72 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.641e-05/3.668e-05, allocations: 7.5 kB / 0.5337 GB, free: 12.23 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1736/0.1737, allocations: 98.72 MB / 0.6301 GB, free: 6.223 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7416/0.9153, allocations: 184.9 MB / 0.8107 GB, free: 57.29 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003606/0.9158, allocations: 111.3 kB / 0.8108 GB, free: 57.29 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4293/1.345, allocations: 123.3 MB / 0.9313 GB, free: 5.031 MB / 0.6667 GB
Notification: Performance of FrontEnd: time 2.456e-06/1.345, allocations: 0 / 0.9313 GB, free: 5.031 MB / 0.6667 GB
Notification: Performance of Transformations before backend: time 0.0001846/1.345, allocations: 71.92 kB / 0.9313 GB, free: 4.961 MB / 0.6667 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 0.009681/1.355, allocations: 2.666 MB / 0.9339 GB, free: 2.238 MB / 0.6667 GB
Notification: Performance of prepare preOptimizeDAE: time 4.345e-05/1.355, allocations: 11.97 kB / 0.934 GB, free: 2.227 MB / 0.6667 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01587/1.371, allocations: 2.083 MB / 0.936 GB, free: 140 kB / 0.6667 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006103/1.377, allocations: 1.993 MB / 0.9379 GB, free: 14.1 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003391/1.377, allocations: 234.1 kB / 0.9382 GB, free: 13.87 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001626/1.379, allocations: 300 kB / 0.9384 GB, free: 13.57 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01655/1.396, allocations: 5.275 MB / 0.9436 GB, free: 8.191 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001035/1.396, allocations: 7.938 kB / 0.9436 GB, free: 8.184 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009121/1.397, allocations: 135.9 kB / 0.9437 GB, free: 8.051 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000659/1.397, allocations: 285.2 kB / 0.944 GB, free: 7.77 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01413/1.412, allocations: 4.969 MB / 0.9489 GB, free: 2.793 MB / 0.6823 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04572/1.457, allocations: 24.76 MB / 0.973 GB, free: 7.969 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009189/1.467, allocations: 4.939 MB / 0.9779 GB, free: 2.68 MB / 0.7136 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005461/1.472, allocations: 2.31 MB / 0.9801 GB, free: 360 kB / 0.7136 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000433/1.473, allocations: 139 kB / 0.9803 GB, free: 200 kB / 0.7136 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.476e-05/1.473, allocations: 64.48 kB / 0.9803 GB, free: 128 kB / 0.7136 GB
Notification: Performance of pre-optimization done (n=230): time 6.72e-06/1.473, allocations: 3.938 kB / 0.9803 GB, free: 124 kB / 0.7136 GB
Notification: Performance of matching and sorting (n=311): time 0.1503/1.623, allocations: 30.94 MB / 1.011 GB, free: 1.18 MB / 0.7448 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001864/1.623, allocations: 239.8 kB / 1.011 GB, free: 0.8945 MB / 0.7448 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00239/1.626, allocations: 1.115 MB / 1.012 GB, free: 15.76 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006696/1.626, allocations: 81.69 kB / 1.012 GB, free: 15.68 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001207/1.627, allocations: 1.231 MB / 1.013 GB, free: 14.43 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001702/1.629, allocations: 1.04 MB / 1.014 GB, free: 13.37 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004749/1.63, allocations: 68 kB / 1.014 GB, free: 13.3 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003996/1.63, allocations: 448.7 kB / 1.015 GB, free: 12.86 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005399/1.636, allocations: 2.232 MB / 1.017 GB, free: 10.62 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006315/1.642, allocations: 2.9 MB / 1.02 GB, free: 7.457 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007429/1.649, allocations: 2.658 MB / 1.022 GB, free: 4.777 MB / 0.7605 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.552e-05/1.649, allocations: 4 kB / 1.022 GB, free: 4.773 MB / 0.7605 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03022/1.68, allocations: 8.365 MB / 1.03 GB, free: 12.36 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004155/1.684, allocations: 7.32 MB / 1.038 GB, free: 4.457 MB / 0.7761 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.367e-05/1.684, allocations: 20.19 kB / 1.038 GB, free: 4.438 MB / 0.7761 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03398/1.718, allocations: 6.754 MB / 1.044 GB, free: 13.67 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004972/1.723, allocations: 0.8345 MB / 1.045 GB, free: 12.83 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03636/1.759, allocations: 16.66 MB / 1.061 GB, free: 11.99 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004844/1.764, allocations: 0.5029 MB / 1.062 GB, free: 11.49 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008584/1.765, allocations: 183.9 kB / 1.062 GB, free: 11.31 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 1.571e-05/1.765, allocations: 10.44 kB / 1.062 GB, free: 11.3 MB / 0.8073 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 0.006878/1.772, allocations: 2.688 MB / 1.065 GB, free: 8.594 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated