Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD,fileNamePrefix="Buildings_7_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.448/4.448, allocations: 460.5 MB / 472.6 MB, free: 5.391 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.239e-05/4.244e-05, allocations: 6.25 kB / 0.5682 GB, free: 10.05 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2615/0.2616, allocations: 106.2 MB / 0.6719 GB, free: 15.64 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9862/1.248, allocations: 191.8 MB / 0.8593 GB, free: 5.152 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004322/1.248, allocations: 111.5 kB / 0.8594 GB, free: 5.09 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5164/1.765, allocations: 123.4 MB / 0.9799 GB, free: 4.164 MB / 0.7605 GB
Notification: Performance of FrontEnd: time 3.527e-06/1.765, allocations: 0 / 0.9799 GB, free: 4.164 MB / 0.7605 GB
Notification: Performance of Transformations before backend: time 0.0002291/1.765, allocations: 67.98 kB / 0.9799 GB, free: 4.098 MB / 0.7605 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 0.0126/1.778, allocations: 2.666 MB / 0.9825 GB, free: 1.375 MB / 0.7605 GB
Notification: Performance of prepare preOptimizeDAE: time 5.411e-05/1.778, allocations: 12.03 kB / 0.9826 GB, free: 1.363 MB / 0.7605 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002098/1.78, allocations: 492 kB / 0.983 GB, free: 0.8711 MB / 0.7605 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02243/1.802, allocations: 2.075 MB / 0.9851 GB, free: 14.79 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007412/1.81, allocations: 1.997 MB / 0.987 GB, free: 12.75 MB / 0.7761 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002989/1.81, allocations: 230.1 kB / 0.9872 GB, free: 12.52 MB / 0.7761 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001297/1.811, allocations: 307.9 kB / 0.9875 GB, free: 12.22 MB / 0.7761 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01766/1.829, allocations: 5.284 MB / 0.9927 GB, free: 6.828 MB / 0.7761 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001166/1.829, allocations: 7.953 kB / 0.9927 GB, free: 6.82 MB / 0.7761 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007088/1.83, allocations: 124 kB / 0.9928 GB, free: 6.699 MB / 0.7761 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009194/1.831, allocations: 293.2 kB / 0.9931 GB, free: 6.41 MB / 0.7761 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01842/1.849, allocations: 4.961 MB / 0.9979 GB, free: 1.441 MB / 0.7761 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05652/1.906, allocations: 24.76 MB / 1.022 GB, free: 6.617 MB / 0.8073 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01155/1.918, allocations: 4.936 MB / 1.027 GB, free: 1.324 MB / 0.8073 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.00678/1.924, allocations: 2.31 MB / 1.029 GB, free: 15 MB / 0.823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004901/1.925, allocations: 147 kB / 1.029 GB, free: 14.84 MB / 0.823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.231e-05/1.925, allocations: 60.56 kB / 1.029 GB, free: 14.77 MB / 0.823 GB
Notification: Performance of pre-optimization done (n=230): time 6.232e-06/1.925, allocations: 0 / 1.029 GB, free: 14.77 MB / 0.823 GB
Notification: Performance of matching and sorting (n=311): time 0.2258/2.151, allocations: 30.92 MB / 1.06 GB, free: 15.84 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001919/2.151, allocations: 251.8 kB / 1.06 GB, free: 15.54 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002848/2.154, allocations: 1.115 MB / 1.061 GB, free: 14.41 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009646/2.155, allocations: 77.7 kB / 1.061 GB, free: 14.33 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001352/2.156, allocations: 1.231 MB / 1.062 GB, free: 13.08 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002165/2.159, allocations: 1.04 MB / 1.063 GB, free: 12.02 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000539/2.159, allocations: 68 kB / 1.063 GB, free: 11.96 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.000404/2.16, allocations: 444.7 kB / 1.064 GB, free: 11.52 MB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.008221/2.168, allocations: 2.236 MB / 1.066 GB, free: 9.277 MB / 0.8542 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01132/2.179, allocations: 2.908 MB / 1.069 GB, free: 6.105 MB / 0.8542 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01141/2.191, allocations: 2.654 MB / 1.071 GB, free: 3.43 MB / 0.8542 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.524e-05/2.191, allocations: 4 kB / 1.071 GB, free: 3.426 MB / 0.8542 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.04771/2.239, allocations: 8.373 MB / 1.079 GB, free: 11 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005134/2.244, allocations: 7.324 MB / 1.087 GB, free: 3.098 MB / 0.8698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001058/2.244, allocations: 20 kB / 1.087 GB, free: 3.078 MB / 0.8698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.7325/2.976, allocations: 6.751 MB / 1.093 GB, free: 242 MB / 0.8698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007429/2.984, allocations: 0.8232 MB / 1.094 GB, free: 242 MB / 0.8698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04568/3.03, allocations: 16.66 MB / 1.11 GB, free: 240.1 MB / 0.8698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007527/3.037, allocations: 0.5039 MB / 1.111 GB, free: 240.1 MB / 0.8698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001137/3.038, allocations: 180.2 kB / 1.111 GB, free: 240.1 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.611e-05/3.038, allocations: 2.812 kB / 1.111 GB, free: 240.1 MB / 0.8698 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 0.008627/3.047, allocations: 2.686 MB / 1.114 GB, free: 240 MB / 0.8698 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated