Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_6_0_0_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.376/4.376, allocations: 432.7 MB / 444.9 MB, free: 15.71 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.649e-05/3.66e-05, allocations: 3.219 kB / 0.5338 GB, free: 12.21 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2236/0.2236, allocations: 98.72 MB / 0.6302 GB, free: 6.098 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9559/1.18, allocations: 186.6 MB / 0.8125 GB, free: 48.55 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003767/1.18, allocations: 110.5 kB / 0.8126 GB, free: 48.55 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.561/1.741, allocations: 134.9 MB / 0.9443 GB, free: 1.438 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.775e-06/1.741, allocations: 0 / 0.9443 GB, free: 1.438 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0003152/1.741, allocations: 72 kB / 0.9444 GB, free: 1.367 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.01416/1.756, allocations: 2.96 MB / 0.9472 GB, free: 14.36 MB / 0.698 GB
Notification: Performance of prepare preOptimizeDAE: time 6.018e-05/1.756, allocations: 12.03 kB / 0.9473 GB, free: 14.35 MB / 0.698 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003043/1.759, allocations: 0.553 MB / 0.9478 GB, free: 13.8 MB / 0.698 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02287/1.782, allocations: 2.133 MB / 0.9499 GB, free: 11.66 MB / 0.698 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007914/1.79, allocations: 2.18 MB / 0.952 GB, free: 9.453 MB / 0.698 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004567/1.79, allocations: 268.9 kB / 0.9523 GB, free: 9.199 MB / 0.698 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002333/1.793, allocations: 356.4 kB / 0.9526 GB, free: 8.863 MB / 0.698 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02177/1.814, allocations: 5.923 MB / 0.9584 GB, free: 2.875 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000135/1.815, allocations: 11.94 kB / 0.9584 GB, free: 2.863 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001096/1.816, allocations: 151.7 kB / 0.9586 GB, free: 2.727 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009256/1.817, allocations: 298.1 kB / 0.9588 GB, free: 2.434 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01974/1.836, allocations: 5.345 MB / 0.9641 GB, free: 13.09 MB / 0.7136 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.122/1.958, allocations: 26.73 MB / 0.9902 GB, free: 308 kB / 0.7292 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0165/1.975, allocations: 4.465 MB / 0.9945 GB, free: 11.53 MB / 0.7448 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005869/1.981, allocations: 2.051 MB / 0.9965 GB, free: 9.461 MB / 0.7448 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003838/1.981, allocations: 138.3 kB / 0.9967 GB, free: 9.316 MB / 0.7448 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.803e-05/1.981, allocations: 56.56 kB / 0.9967 GB, free: 9.254 MB / 0.7448 GB
Notification: Performance of pre-optimization done (n=208): time 5.29e-06/1.981, allocations: 0 / 0.9967 GB, free: 9.254 MB / 0.7448 GB
Notification: Performance of matching and sorting (n=277): time 0.176/2.157, allocations: 25.94 MB / 1.022 GB, free: 15.32 MB / 0.7761 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001704/2.158, allocations: 239.6 kB / 1.022 GB, free: 15.04 MB / 0.7761 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003408/2.161, allocations: 1.312 MB / 1.024 GB, free: 13.71 MB / 0.7761 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007972/2.162, allocations: 65.7 kB / 1.024 GB, free: 13.64 MB / 0.7761 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001701/2.164, allocations: 1.508 MB / 1.025 GB, free: 12.12 MB / 0.7761 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002047/2.166, allocations: 0.938 MB / 1.026 GB, free: 11.2 MB / 0.7761 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005658/2.166, allocations: 64 kB / 1.026 GB, free: 11.13 MB / 0.7761 GB
Notification: Performance of setup shared object (initialization): time 0.0004089/2.167, allocations: 444.8 kB / 1.026 GB, free: 10.69 MB / 0.7761 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006495/2.173, allocations: 2.119 MB / 1.029 GB, free: 8.57 MB / 0.7761 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007486/2.181, allocations: 3.003 MB / 1.031 GB, free: 5.184 MB / 0.7761 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007461/2.188, allocations: 2.573 MB / 1.034 GB, free: 2.586 MB / 0.7761 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.35e-05/2.188, allocations: 8 kB / 1.034 GB, free: 2.578 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.03174/2.22, allocations: 8.059 MB / 1.042 GB, free: 10.47 MB / 0.7917 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005302/2.225, allocations: 10.62 MB / 1.052 GB, free: 15 MB / 0.8073 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.986e-05/2.226, allocations: 28 kB / 1.052 GB, free: 14.98 MB / 0.8073 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04696/2.273, allocations: 6.525 MB / 1.059 GB, free: 8.438 MB / 0.8073 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007758/2.28, allocations: 0.8735 MB / 1.06 GB, free: 7.562 MB / 0.8073 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04212/2.323, allocations: 14.67 MB / 1.074 GB, free: 8.73 MB / 0.823 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007669/2.33, allocations: 0.5378 MB / 1.074 GB, free: 8.191 MB / 0.823 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00113/2.331, allocations: 195.9 kB / 1.075 GB, free: 8 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 1.357e-05/2.332, allocations: 0 / 1.075 GB, free: 8 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 0.008503/2.34, allocations: 2.609 MB / 1.077 GB, free: 5.359 MB / 0.823 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated