Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.252/4.252, allocations: 432.8 MB / 444.9 MB, free: 15.68 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.55e-05/4.555e-05, allocations: 4 kB / 0.5338 GB, free: 12.18 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2722/0.2723, allocations: 98.73 MB / 0.6302 GB, free: 6.066 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9616/1.234, allocations: 184.9 MB / 0.8108 GB, free: 48.39 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004106/1.234, allocations: 112.5 kB / 0.8109 GB, free: 48.39 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5233/1.758, allocations: 123.3 MB / 0.9314 GB, free: 14.12 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 6.372e-06/1.758, allocations: 4 kB / 0.9314 GB, free: 14.12 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0002188/1.758, allocations: 64 kB / 0.9314 GB, free: 14.06 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 0.01334/1.771, allocations: 2.665 MB / 0.934 GB, free: 11.35 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.996e-05/1.772, allocations: 15.97 kB / 0.9341 GB, free: 11.33 MB / 0.6823 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002828/1.774, allocations: 491.3 kB / 0.9345 GB, free: 10.85 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02296/1.797, allocations: 2.079 MB / 0.9366 GB, free: 8.766 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007272/1.805, allocations: 1.996 MB / 0.9385 GB, free: 6.742 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003711/1.805, allocations: 232.8 kB / 0.9387 GB, free: 6.523 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001948/1.807, allocations: 302.5 kB / 0.939 GB, free: 6.238 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02113/1.828, allocations: 5.276 MB / 0.9442 GB, free: 0.8828 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001606/1.828, allocations: 3.984 kB / 0.9442 GB, free: 0.8789 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001629/1.83, allocations: 135.4 kB / 0.9443 GB, free: 0.7578 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001258/1.831, allocations: 285.2 kB / 0.9446 GB, free: 488 kB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04399/1.875, allocations: 4.961 MB / 0.9494 GB, free: 11.51 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.07324/1.949, allocations: 24.76 MB / 0.9736 GB, free: 0.8086 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01188/1.961, allocations: 4.941 MB / 0.9784 GB, free: 11.52 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006933/1.968, allocations: 2.306 MB / 0.9807 GB, free: 9.199 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0005056/1.968, allocations: 146.7 kB / 0.9808 GB, free: 9.047 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.537e-05/1.968, allocations: 64.5 kB / 0.9809 GB, free: 8.977 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 5.551e-06/1.968, allocations: 0 / 0.9809 GB, free: 8.977 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.2271/2.195, allocations: 30.94 MB / 1.011 GB, free: 10.11 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001706/2.196, allocations: 247.8 kB / 1.011 GB, free: 9.812 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002794/2.198, allocations: 1.119 MB / 1.012 GB, free: 8.676 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009427/2.199, allocations: 77.7 kB / 1.012 GB, free: 8.594 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001272/2.201, allocations: 1.23 MB / 1.014 GB, free: 7.352 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002099/2.203, allocations: 1.043 MB / 1.015 GB, free: 6.32 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005359/2.203, allocations: 68 kB / 1.015 GB, free: 6.254 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003521/2.204, allocations: 444.7 kB / 1.015 GB, free: 5.812 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006294/2.21, allocations: 2.232 MB / 1.017 GB, free: 3.578 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007465/2.218, allocations: 2.908 MB / 1.02 GB, free: 412 kB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007777/2.225, allocations: 2.654 MB / 1.023 GB, free: 13.73 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.05e-05/2.225, allocations: 4 kB / 1.023 GB, free: 13.72 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03386/2.259, allocations: 8.366 MB / 1.031 GB, free: 5.305 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003367/2.263, allocations: 7.316 MB / 1.038 GB, free: 13.41 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.524e-05/2.263, allocations: 24.28 kB / 1.038 GB, free: 13.39 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04784/2.311, allocations: 6.758 MB / 1.045 GB, free: 6.613 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007769/2.319, allocations: 0.8191 MB / 1.046 GB, free: 5.793 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04531/2.364, allocations: 16.67 MB / 1.062 GB, free: 4.949 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007563/2.372, allocations: 0.5068 MB / 1.062 GB, free: 4.441 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009166/2.373, allocations: 175.9 kB / 1.062 GB, free: 4.27 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 2.154e-05/2.373, allocations: 9.828 kB / 1.063 GB, free: 4.262 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 0.008224/2.381, allocations: 2.688 MB / 1.065 GB, free: 1.555 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated