Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.221/4.221, allocations: 432.7 MB / 444.9 MB, free: 15.67 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.923e-05/3.954e-05, allocations: 4.359 kB / 0.5338 GB, free: 12.23 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2237/0.2238, allocations: 98.73 MB / 0.6302 GB, free: 6.07 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9486/1.172, allocations: 184.9 MB / 0.8108 GB, free: 48.43 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000441/1.173, allocations: 112.8 kB / 0.8109 GB, free: 48.43 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5378/1.711, allocations: 123.3 MB / 0.9314 GB, free: 13.98 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.535e-06/1.711, allocations: 0 / 0.9314 GB, free: 13.98 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0002203/1.711, allocations: 63.83 kB / 0.9314 GB, free: 13.93 MB / 0.6823 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 0.01317/1.724, allocations: 2.672 MB / 0.934 GB, free: 11.21 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 6.297e-05/1.724, allocations: 8.031 kB / 0.9341 GB, free: 11.2 MB / 0.6823 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00289/1.727, allocations: 487.9 kB / 0.9345 GB, free: 10.72 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02322/1.751, allocations: 2.091 MB / 0.9366 GB, free: 8.629 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007683/1.758, allocations: 1.985 MB / 0.9385 GB, free: 6.613 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003872/1.759, allocations: 232.9 kB / 0.9387 GB, free: 6.395 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002125/1.761, allocations: 302.6 kB / 0.939 GB, free: 6.109 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0213/1.782, allocations: 5.281 MB / 0.9442 GB, free: 0.75 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001423/1.782, allocations: 7.938 kB / 0.9442 GB, free: 0.7422 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00109/1.784, allocations: 130.4 kB / 0.9443 GB, free: 0.625 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009578/1.785, allocations: 281.3 kB / 0.9446 GB, free: 356 kB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0182/1.803, allocations: 4.965 MB / 0.9494 GB, free: 11.38 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05859/1.861, allocations: 24.76 MB / 0.9736 GB, free: 0.6719 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01194/1.873, allocations: 4.933 MB / 0.9784 GB, free: 11.39 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006979/1.88, allocations: 2.313 MB / 0.9807 GB, free: 9.062 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0005347/1.881, allocations: 146.2 kB / 0.9808 GB, free: 8.91 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.789e-05/1.881, allocations: 64.5 kB / 0.9809 GB, free: 8.84 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 8.305e-06/1.881, allocations: 0 / 0.9809 GB, free: 8.84 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.2296/2.111, allocations: 30.95 MB / 1.011 GB, free: 9.957 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000199/2.111, allocations: 235.9 kB / 1.011 GB, free: 9.676 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003005/2.114, allocations: 1.119 MB / 1.012 GB, free: 8.539 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009855/2.115, allocations: 77.7 kB / 1.012 GB, free: 8.457 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001458/2.117, allocations: 1.237 MB / 1.014 GB, free: 7.211 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00221/2.119, allocations: 1.038 MB / 1.015 GB, free: 6.18 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005768/2.12, allocations: 68 kB / 1.015 GB, free: 6.113 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0004179/2.12, allocations: 444.7 kB / 1.015 GB, free: 5.672 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006976/2.127, allocations: 2.232 MB / 1.017 GB, free: 3.438 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.008037/2.135, allocations: 2.908 MB / 1.02 GB, free: 268 kB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00801/2.143, allocations: 2.656 MB / 1.023 GB, free: 13.59 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.299e-05/2.143, allocations: 4 kB / 1.023 GB, free: 13.58 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03262/2.176, allocations: 8.369 MB / 1.031 GB, free: 5.164 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003461/2.179, allocations: 7.321 MB / 1.038 GB, free: 13.27 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.575e-05/2.179, allocations: 20 kB / 1.038 GB, free: 13.25 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04806/2.228, allocations: 6.751 MB / 1.045 GB, free: 6.48 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00771/2.235, allocations: 0.8307 MB / 1.046 GB, free: 5.648 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04801/2.283, allocations: 16.66 MB / 1.062 GB, free: 4.816 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007854/2.291, allocations: 0.5068 MB / 1.062 GB, free: 4.309 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00146/2.293, allocations: 179.9 kB / 1.062 GB, free: 4.133 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 2.145e-05/2.293, allocations: 4 kB / 1.063 GB, free: 4.129 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 0.009944/2.303, allocations: 2.688 MB / 1.065 GB, free: 1.422 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated