Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.369/4.369, allocations: 464.6 MB / 476.8 MB, free: 2.086 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.487e-05/4.506e-05, allocations: 8 kB / 0.5732 GB, free: 5.551 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2441/0.2442, allocations: 107.2 MB / 0.6779 GB, free: 10.2 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9932/1.237, allocations: 193.9 MB / 0.8672 GB, free: 10.02 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.000446/1.238, allocations: 113.3 kB / 0.8673 GB, free: 9.957 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.566/1.804, allocations: 134.9 MB / 0.9991 GB, free: 12.93 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 2.034e-06/1.804, allocations: 0 / 0.9991 GB, free: 12.93 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0002229/1.804, allocations: 72 kB / 0.9992 GB, free: 12.86 MB / 0.7917 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 0.01404/1.818, allocations: 2.959 MB / 1.002 GB, free: 9.844 MB / 0.7917 GB
Notification: Performance of prepare preOptimizeDAE: time 5.895e-05/1.818, allocations: 8.031 kB / 1.002 GB, free: 9.836 MB / 0.7917 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002902/1.821, allocations: 0.5463 MB / 1.003 GB, free: 9.281 MB / 0.7917 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02282/1.844, allocations: 2.133 MB / 1.005 GB, free: 7.141 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007899/1.852, allocations: 2.197 MB / 1.007 GB, free: 4.898 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000415/1.853, allocations: 267.1 kB / 1.007 GB, free: 4.637 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002063/1.855, allocations: 348 kB / 1.007 GB, free: 4.297 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02207/1.877, allocations: 5.925 MB / 1.013 GB, free: 14.27 MB / 0.8073 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001464/1.877, allocations: 11.94 kB / 1.013 GB, free: 14.26 MB / 0.8073 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001495/1.878, allocations: 144 kB / 1.013 GB, free: 14.12 MB / 0.8073 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009653/1.879, allocations: 306.1 kB / 1.014 GB, free: 13.82 MB / 0.8073 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01844/1.898, allocations: 5.345 MB / 1.019 GB, free: 8.473 MB / 0.8073 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05921/1.957, allocations: 26.74 MB / 1.045 GB, free: 11.55 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01069/1.968, allocations: 4.469 MB / 1.049 GB, free: 6.777 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005939/1.974, allocations: 2.048 MB / 1.051 GB, free: 4.703 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004244/1.974, allocations: 135 kB / 1.051 GB, free: 4.551 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.196e-05/1.975, allocations: 64.48 kB / 1.052 GB, free: 4.48 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 5.421e-06/1.975, allocations: 4 kB / 1.052 GB, free: 4.477 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1761/2.151, allocations: 25.92 MB / 1.077 GB, free: 10.51 MB / 0.8698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000153/2.151, allocations: 243.6 kB / 1.077 GB, free: 10.22 MB / 0.8698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003105/2.154, allocations: 1.3 MB / 1.078 GB, free: 8.91 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007982/2.155, allocations: 73.7 kB / 1.078 GB, free: 8.832 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001568/2.156, allocations: 1.505 MB / 1.08 GB, free: 7.305 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001857/2.158, allocations: 0.9319 MB / 1.081 GB, free: 6.359 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006113/2.159, allocations: 68 kB / 1.081 GB, free: 6.293 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003943/2.159, allocations: 444.8 kB / 1.081 GB, free: 5.852 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006364/2.166, allocations: 2.119 MB / 1.083 GB, free: 3.73 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007313/2.173, allocations: 3.007 MB / 1.086 GB, free: 348 kB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007234/2.18, allocations: 2.578 MB / 1.089 GB, free: 13.74 MB / 0.8855 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.118e-05/2.18, allocations: 8 kB / 1.089 GB, free: 13.73 MB / 0.8855 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.03074/2.211, allocations: 8.057 MB / 1.097 GB, free: 5.613 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.615/2.826, allocations: 10.62 MB / 1.107 GB, free: 239.9 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001167/2.826, allocations: 26.28 kB / 1.107 GB, free: 239.9 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.06309/2.89, allocations: 6.532 MB / 1.113 GB, free: 239.8 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007866/2.897, allocations: 0.8717 MB / 1.114 GB, free: 239.8 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04879/2.946, allocations: 14.66 MB / 1.129 GB, free: 238 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01021/2.957, allocations: 0.5355 MB / 1.129 GB, free: 238 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001376/2.958, allocations: 190.5 kB / 1.129 GB, free: 238 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.917e-05/2.958, allocations: 3.531 kB / 1.129 GB, free: 238 MB / 0.8855 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 0.011/2.969, allocations: 2.605 MB / 1.132 GB, free: 237.9 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated