Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.137/4.137, allocations: 432.7 MB / 444.9 MB, free: 15.73 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.162e-05/4.169e-05, allocations: 7.875 kB / 0.5338 GB, free: 12.25 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2341/0.2341, allocations: 98.72 MB / 0.6302 GB, free: 6.109 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9679/1.202, allocations: 185.6 MB / 0.8115 GB, free: 48.46 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003966/1.203, allocations: 111.8 kB / 0.8116 GB, free: 48.46 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5673/1.77, allocations: 124 MB / 0.9327 GB, free: 12.86 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.585e-06/1.77, allocations: 4 kB / 0.9327 GB, free: 12.86 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0002231/1.77, allocations: 67.44 kB / 0.9328 GB, free: 12.8 MB / 0.6823 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 0.01304/1.783, allocations: 2.695 MB / 0.9354 GB, free: 10.05 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 6.539e-05/1.783, allocations: 16.03 kB / 0.9354 GB, free: 10.04 MB / 0.6823 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00251/1.786, allocations: 492 kB / 0.9359 GB, free: 9.559 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02273/1.809, allocations: 2.079 MB / 0.9379 GB, free: 7.473 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007455/1.816, allocations: 2.008 MB / 0.9399 GB, free: 5.438 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003613/1.817, allocations: 233.7 kB / 0.9401 GB, free: 5.219 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002001/1.819, allocations: 311.2 kB / 0.9404 GB, free: 4.926 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02088/1.84, allocations: 5.31 MB / 0.9456 GB, free: 15.54 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000184/1.84, allocations: 7.938 kB / 0.9456 GB, free: 15.53 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00169/1.841, allocations: 131.8 kB / 0.9457 GB, free: 15.41 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001016/1.843, allocations: 285.3 kB / 0.946 GB, free: 15.13 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01817/1.861, allocations: 4.977 MB / 0.9509 GB, free: 10.14 MB / 0.698 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05771/1.919, allocations: 24.85 MB / 0.9751 GB, free: 15.37 MB / 0.7292 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01204/1.931, allocations: 4.932 MB / 0.9799 GB, free: 10.08 MB / 0.7292 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006803/1.937, allocations: 2.313 MB / 0.9822 GB, free: 7.75 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004958/1.938, allocations: 145.8 kB / 0.9823 GB, free: 7.602 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.272e-05/1.938, allocations: 60.52 kB / 0.9824 GB, free: 7.535 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 6.382e-06/1.938, allocations: 0 / 0.9824 GB, free: 7.535 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.2313/2.169, allocations: 30.99 MB / 1.013 GB, free: 8.605 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001646/2.17, allocations: 243.8 kB / 1.013 GB, free: 8.316 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002827/2.172, allocations: 1.146 MB / 1.014 GB, free: 7.156 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0008732/2.173, allocations: 77.7 kB / 1.014 GB, free: 7.074 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001363/2.175, allocations: 1.254 MB / 1.015 GB, free: 5.809 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002031/2.177, allocations: 1.039 MB / 1.016 GB, free: 4.777 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005482/2.177, allocations: 64 kB / 1.016 GB, free: 4.715 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003518/2.178, allocations: 444.7 kB / 1.017 GB, free: 4.273 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006554/2.184, allocations: 2.236 MB / 1.019 GB, free: 2.035 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01035/2.195, allocations: 2.905 MB / 1.022 GB, free: 14.87 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01154/2.206, allocations: 2.654 MB / 1.024 GB, free: 12.19 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.779e-05/2.206, allocations: 4 kB / 1.024 GB, free: 12.19 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.05107/2.257, allocations: 8.376 MB / 1.033 GB, free: 3.762 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004877/2.262, allocations: 7.324 MB / 1.04 GB, free: 11.86 MB / 0.7917 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001146/2.263, allocations: 24.33 kB / 1.04 GB, free: 11.84 MB / 0.7917 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.07613/2.339, allocations: 6.751 MB / 1.046 GB, free: 5.066 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01208/2.351, allocations: 0.8306 MB / 1.047 GB, free: 4.234 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.05033/2.401, allocations: 16.67 MB / 1.063 GB, free: 3.398 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007472/2.409, allocations: 0.503 MB / 1.064 GB, free: 2.895 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001103/2.41, allocations: 176.1 kB / 1.064 GB, free: 2.723 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 1.787e-05/2.41, allocations: 14.33 kB / 1.064 GB, free: 2.711 MB / 0.8073 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 0.008147/2.418, allocations: 2.684 MB / 1.067 GB, free: 4 kB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated