Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 3.797/3.797, allocations: 403.3 MB / 415.4 MB, free: 12.91 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.602e-05/3.607e-05, allocations: 4 kB / 0.4991 GB, free: 13.24 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.5799/0.58, allocations: 92.68 MB / 0.5897 GB, free: 14.46 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.3214/0.9015, allocations: 182.4 MB / 0.7678 GB, free: 7.754 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004847/0.902, allocations: 115.9 kB / 0.7679 GB, free: 7.641 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 1.033/1.935, allocations: 133.6 MB / 0.8984 GB, free: 67.2 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.515e-06/1.935, allocations: 0 / 0.8984 GB, free: 67.2 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001893/1.935, allocations: 79.94 kB / 0.8985 GB, free: 67.12 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.01194/1.947, allocations: 2.957 MB / 0.9014 GB, free: 64.11 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 5.093e-05/1.947, allocations: 8.031 kB / 0.9014 GB, free: 64.1 MB / 0.6511 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002095/1.95, allocations: 0.5463 MB / 0.9019 GB, free: 63.54 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02152/1.971, allocations: 2.106 MB / 0.904 GB, free: 61.43 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007071/1.978, allocations: 2.185 MB / 0.9061 GB, free: 59.2 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000285/1.979, allocations: 271.1 kB / 0.9064 GB, free: 58.93 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001642/1.98, allocations: 352 kB / 0.9067 GB, free: 58.59 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01798/1.998, allocations: 5.981 MB / 0.9126 GB, free: 52.51 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001444/1.998, allocations: 7.906 kB / 0.9126 GB, free: 52.5 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001106/2, allocations: 144 kB / 0.9127 GB, free: 52.36 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008074/2, allocations: 306 kB / 0.913 GB, free: 52.06 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01575/2.016, allocations: 5.395 MB / 0.9183 GB, free: 46.66 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04675/2.063, allocations: 20.36 MB / 0.9382 GB, free: 25.66 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008955/2.072, allocations: 4.506 MB / 0.9426 GB, free: 20.84 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004932/2.077, allocations: 2.047 MB / 0.9446 GB, free: 18.78 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003942/2.077, allocations: 139 kB / 0.9447 GB, free: 18.62 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.272e-05/2.077, allocations: 60.56 kB / 0.9447 GB, free: 18.55 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 5.69e-06/2.077, allocations: 0 / 0.9447 GB, free: 18.55 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1673/2.245, allocations: 25.93 MB / 0.9701 GB, free: 8.586 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001502/2.245, allocations: 243.5 kB / 0.9703 GB, free: 8.297 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003192/2.248, allocations: 1.312 MB / 0.9716 GB, free: 6.977 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007259/2.249, allocations: 65.7 kB / 0.9716 GB, free: 6.906 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001513/2.251, allocations: 1.49 MB / 0.9731 GB, free: 5.395 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001766/2.252, allocations: 0.9358 MB / 0.974 GB, free: 4.445 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005364/2.253, allocations: 64 kB / 0.9741 GB, free: 4.383 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003496/2.253, allocations: 440.8 kB / 0.9745 GB, free: 3.945 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006128/2.259, allocations: 2.119 MB / 0.9766 GB, free: 1.824 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007292/2.267, allocations: 3.017 MB / 0.9795 GB, free: 14.43 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007271/2.274, allocations: 2.581 MB / 0.982 GB, free: 11.82 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.31e-05/2.274, allocations: 8 kB / 0.982 GB, free: 11.81 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.03131/2.305, allocations: 8.12 MB / 0.99 GB, free: 3.633 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005215/2.311, allocations: 10.63 MB / 1 GB, free: 8.16 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.833e-05/2.311, allocations: 24 kB / 1 GB, free: 8.137 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04673/2.358, allocations: 6.51 MB / 1.007 GB, free: 1.613 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007757/2.365, allocations: 0.8774 MB / 1.008 GB, free: 0.7344 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04157/2.407, allocations: 14.66 MB / 1.022 GB, free: 1.898 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00749/2.415, allocations: 0.5261 MB / 1.022 GB, free: 1.371 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001067/2.416, allocations: 191.9 kB / 1.023 GB, free: 1.184 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.745e-05/2.416, allocations: 5.25 kB / 1.023 GB, free: 1.18 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 0.008331/2.424, allocations: 2.656 MB / 1.025 GB, free: 14.5 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated