Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DD,fileNamePrefix="Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 3.82/3.82, allocations: 403.3 MB / 415.4 MB, free: 12.9 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.909e-05/3.912e-05, allocations: 11.92 kB / 0.4992 GB, free: 13.25 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.6082/0.6082, allocations: 92.66 MB / 0.5896 GB, free: 14.5 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.3228/0.9311, allocations: 181.5 MB / 0.7669 GB, free: 8.746 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000444/0.9316, allocations: 119.9 kB / 0.767 GB, free: 8.629 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 1.001/1.933, allocations: 123 MB / 0.8871 GB, free: 78.96 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.816e-06/1.933, allocations: 0 / 0.8871 GB, free: 78.96 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001835/1.933, allocations: 64 kB / 0.8871 GB, free: 78.89 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: 874
 * Number of variables: 874
Notification: Performance of Generate backend data structure: time 0.01101/1.944, allocations: 2.693 MB / 0.8897 GB, free: 76.14 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 5.735e-05/1.944, allocations: 16.03 kB / 0.8898 GB, free: 76.13 MB / 0.6511 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002044/1.946, allocations: 484.3 kB / 0.8902 GB, free: 75.64 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02117/1.967, allocations: 2.075 MB / 0.8923 GB, free: 73.56 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006705/1.974, allocations: 2.001 MB / 0.8942 GB, free: 71.52 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002761/1.974, allocations: 238.2 kB / 0.8944 GB, free: 71.28 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001673/1.976, allocations: 307.9 kB / 0.8947 GB, free: 70.98 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01587/1.992, allocations: 5.343 MB / 0.8999 GB, free: 65.53 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000107/1.992, allocations: 4 kB / 0.9 GB, free: 65.52 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006707/1.993, allocations: 132 kB / 0.9001 GB, free: 65.39 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007624/1.994, allocations: 293.3 kB / 0.9004 GB, free: 65.11 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01481/2.008, allocations: 5.027 MB / 0.9053 GB, free: 60.07 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04361/2.052, allocations: 18.46 MB / 0.9233 GB, free: 41.09 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009432/2.062, allocations: 4.974 MB / 0.9281 GB, free: 35.77 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.00567/2.067, allocations: 2.314 MB / 0.9304 GB, free: 33.44 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004502/2.068, allocations: 139 kB / 0.9305 GB, free: 33.29 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.309e-05/2.068, allocations: 60.56 kB / 0.9306 GB, free: 33.21 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=230): time 5.531e-06/2.068, allocations: 0 / 0.9306 GB, free: 33.21 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=311): time 0.2046/2.272, allocations: 30.99 MB / 0.9609 GB, free: 2.219 MB / 0.6511 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 8.645e-05/2.273, allocations: 243.8 kB / 0.9611 GB, free: 1.93 MB / 0.6511 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002225/2.275, allocations: 1.153 MB / 0.9622 GB, free: 0.7617 MB / 0.6511 GB
Notification: Performance of collectPreVariables (initialization): time 0.000682/2.276, allocations: 81.7 kB / 0.9623 GB, free: 0.6758 MB / 0.6511 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0009312/2.276, allocations: 1.239 MB / 0.9635 GB, free: 15.41 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001614/2.278, allocations: 1.044 MB / 0.9645 GB, free: 14.36 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004367/2.279, allocations: 64 kB / 0.9646 GB, free: 14.29 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003202/2.279, allocations: 436.7 kB / 0.965 GB, free: 13.86 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005933/2.285, allocations: 2.243 MB / 0.9672 GB, free: 11.61 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006714/2.292, allocations: 2.926 MB / 0.9701 GB, free: 8.414 MB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007143/2.299, allocations: 2.654 MB / 0.9726 GB, free: 5.738 MB / 0.6667 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.612e-05/2.299, allocations: 8 kB / 0.9726 GB, free: 5.73 MB / 0.6667 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03042/2.329, allocations: 8.408 MB / 0.9809 GB, free: 13.27 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003129/2.332, allocations: 7.326 MB / 0.988 GB, free: 5.367 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.819e-05/2.333, allocations: 24 kB / 0.988 GB, free: 5.344 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04664/2.379, allocations: 6.731 MB / 0.9946 GB, free: 14.6 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007463/2.387, allocations: 0.8189 MB / 0.9954 GB, free: 13.78 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04554/2.432, allocations: 16.65 MB / 1.012 GB, free: 12.96 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007295/2.44, allocations: 0.499 MB / 1.012 GB, free: 12.46 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001009/2.441, allocations: 183.9 kB / 1.012 GB, free: 12.28 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.556e-05/2.441, allocations: 4 kB / 1.012 GB, free: 12.27 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 0.008205/2.449, allocations: 2.711 MB / 1.015 GB, free: 9.535 MB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated