Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.448/4.448, allocations: 432.8 MB / 444.9 MB, free: 15.71 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.006e-05/4.003e-05, allocations: 3.75 kB / 0.5338 GB, free: 12.21 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2179/0.218, allocations: 98.72 MB / 0.6302 GB, free: 6.117 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9245/1.143, allocations: 186.7 MB / 0.8126 GB, free: 48.49 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004037/1.143, allocations: 111 kB / 0.8127 GB, free: 48.49 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5467/1.69, allocations: 138.5 MB / 0.948 GB, free: 13.75 MB / 0.698 GB
Notification: Performance of FrontEnd: time 3.046e-06/1.69, allocations: 0 / 0.948 GB, free: 13.75 MB / 0.698 GB
Notification: Performance of Transformations before backend: time 0.0002245/1.69, allocations: 75.67 kB / 0.948 GB, free: 13.68 MB / 0.698 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 0.01638/1.706, allocations: 2.952 MB / 0.9509 GB, free: 10.68 MB / 0.698 GB
Notification: Performance of prepare preOptimizeDAE: time 7.564e-05/1.707, allocations: 8.031 kB / 0.9509 GB, free: 10.68 MB / 0.698 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003714/1.71, allocations: 0.5511 MB / 0.9515 GB, free: 10.12 MB / 0.698 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03759/1.748, allocations: 2.227 MB / 0.9536 GB, free: 7.895 MB / 0.698 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01224/1.76, allocations: 2.188 MB / 0.9558 GB, free: 5.676 MB / 0.698 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005989/1.761, allocations: 270.9 kB / 0.956 GB, free: 5.418 MB / 0.698 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002967/1.764, allocations: 347.6 kB / 0.9564 GB, free: 5.09 MB / 0.698 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02928/1.793, allocations: 5.961 MB / 0.9622 GB, free: 15.06 MB / 0.7136 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001448/1.793, allocations: 3.938 kB / 0.9622 GB, free: 15.06 MB / 0.7136 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001383/1.795, allocations: 155.4 kB / 0.9623 GB, free: 14.92 MB / 0.7136 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009035/1.796, allocations: 302.1 kB / 0.9626 GB, free: 14.62 MB / 0.7136 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01875/1.815, allocations: 5.38 MB / 0.9679 GB, free: 9.238 MB / 0.7136 GB
Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05969/1.874, allocations: 26.79 MB / 0.994 GB, free: 12.38 MB / 0.7448 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01089/1.885, allocations: 4.465 MB / 0.9984 GB, free: 7.605 MB / 0.7448 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005942/1.891, allocations: 2.034 MB / 1 GB, free: 5.555 MB / 0.7448 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004691/1.892, allocations: 145 kB / 1.001 GB, free: 5.406 MB / 0.7448 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.081e-05/1.892, allocations: 56.55 kB / 1.001 GB, free: 5.34 MB / 0.7448 GB
Notification: Performance of pre-optimization done (n=208): time 5.5e-06/1.892, allocations: 0 / 1.001 GB, free: 5.34 MB / 0.7448 GB
Notification: Performance of matching and sorting (n=277): time 0.1972/2.089, allocations: 25.58 MB / 1.026 GB, free: 11.76 MB / 0.7761 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001655/2.089, allocations: 239.6 kB / 1.026 GB, free: 11.47 MB / 0.7761 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003549/2.093, allocations: 1.3 MB / 1.027 GB, free: 10.16 MB / 0.7761 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007932/2.094, allocations: 69.7 kB / 1.027 GB, free: 10.09 MB / 0.7761 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001727/2.095, allocations: 1.499 MB / 1.029 GB, free: 8.578 MB / 0.7761 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001848/2.097, allocations: 0.9455 MB / 1.03 GB, free: 7.641 MB / 0.7761 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006052/2.098, allocations: 68 kB / 1.03 GB, free: 7.574 MB / 0.7761 GB
Notification: Performance of setup shared object (initialization): time 0.0003884/2.098, allocations: 444.8 kB / 1.03 GB, free: 7.133 MB / 0.7761 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006519/2.105, allocations: 2.107 MB / 1.032 GB, free: 5.023 MB / 0.7761 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007732/2.113, allocations: 2.991 MB / 1.035 GB, free: 1.648 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01093/2.124, allocations: 2.572 MB / 1.037 GB, free: 15.05 MB / 0.7917 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.358e-05/2.124, allocations: 11.94 kB / 1.037 GB, free: 15.04 MB / 0.7917 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.03906/2.163, allocations: 7.988 MB / 1.045 GB, free: 7 MB / 0.7917 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005373/2.168, allocations: 10.63 MB / 1.056 GB, free: 11.53 MB / 0.8073 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.865e-05/2.168, allocations: 24 kB / 1.056 GB, free: 11.5 MB / 0.8073 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03938/2.208, allocations: 5.725 MB / 1.061 GB, free: 5.77 MB / 0.8073 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008064/2.216, allocations: 0.8735 MB / 1.062 GB, free: 4.895 MB / 0.8073 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.05173/2.268, allocations: 14.61 MB / 1.076 GB, free: 6.121 MB / 0.823 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007845/2.276, allocations: 0.5338 MB / 1.077 GB, free: 5.586 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001209/2.277, allocations: 175.9 kB / 1.077 GB, free: 5.414 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.989e-05/2.277, allocations: 4 kB / 1.077 GB, free: 5.41 MB / 0.823 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 0.01119/2.288, allocations: 2.594 MB / 1.08 GB, free: 2.789 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated