Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,fileNamePrefix="Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadModel(Buildings): time 3.905/3.905, allocations: 403.3 MB / 415.4 MB, free: 13 MB / 330.7 MB Notification: Performance of FrontEnd - loaded program: time 4.243e-05/4.261e-05, allocations: 7.984 kB / 0.4992 GB, free: 13.34 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6213/0.6213, allocations: 92.67 MB / 0.5897 GB, free: 14.52 MB / 490.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.3433/0.9647, allocations: 181.9 MB / 0.7673 GB, free: 8.297 MB / 0.6511 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004506/0.9652, allocations: 115.9 kB / 0.7674 GB, free: 8.184 MB / 0.6511 GB Notification: Performance of FrontEnd - DAE generated: time 1.005/1.971, allocations: 133 MB / 0.8973 GB, free: 68.39 MB / 0.6511 GB Notification: Performance of FrontEnd: time 1.883e-06/1.971, allocations: 0 / 0.8973 GB, free: 68.39 MB / 0.6511 GB Notification: Performance of Transformations before backend: time 0.0001896/1.971, allocations: 68 kB / 0.8974 GB, free: 68.32 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: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.01255/1.983, allocations: 2.929 MB / 0.9003 GB, free: 65.34 MB / 0.6511 GB Notification: Performance of prepare preOptimizeDAE: time 5.428e-05/1.983, allocations: 8.031 kB / 0.9003 GB, free: 65.33 MB / 0.6511 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002414/1.986, allocations: 0.5499 MB / 0.9008 GB, free: 64.77 MB / 0.6511 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02187/2.008, allocations: 2.102 MB / 0.9029 GB, free: 62.66 MB / 0.6511 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007119/2.015, allocations: 2.174 MB / 0.905 GB, free: 60.45 MB / 0.6511 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002995/2.015, allocations: 271 kB / 0.9052 GB, free: 60.18 MB / 0.6511 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001963/2.017, allocations: 348 kB / 0.9056 GB, free: 59.84 MB / 0.6511 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01905/2.036, allocations: 5.949 MB / 0.9114 GB, free: 53.79 MB / 0.6511 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001176/2.037, allocations: 3.938 kB / 0.9114 GB, free: 53.79 MB / 0.6511 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007523/2.037, allocations: 148 kB / 0.9115 GB, free: 53.64 MB / 0.6511 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007877/2.038, allocations: 298 kB / 0.9118 GB, free: 53.35 MB / 0.6511 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01584/2.054, allocations: 5.383 MB / 0.9171 GB, free: 47.96 MB / 0.6511 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04813/2.102, allocations: 20.29 MB / 0.9369 GB, free: 27.03 MB / 0.6511 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01203/2.114, allocations: 4.499 MB / 0.9413 GB, free: 22.22 MB / 0.6511 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.007298/2.122, allocations: 2.058 MB / 0.9433 GB, free: 20.14 MB / 0.6511 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004585/2.122, allocations: 127 kB / 0.9434 GB, free: 20 MB / 0.6511 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.89e-05/2.122, allocations: 64.5 kB / 0.9435 GB, free: 19.93 MB / 0.6511 GB Notification: Performance of pre-optimization done (n=208): time 8.836e-06/2.122, allocations: 0 / 0.9435 GB, free: 19.93 MB / 0.6511 GB Notification: Performance of matching and sorting (n=277): time 0.1813/2.304, allocations: 25.89 MB / 0.9688 GB, free: 9.992 MB / 0.6667 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001596/2.304, allocations: 235.6 kB / 0.969 GB, free: 9.711 MB / 0.6667 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003156/2.307, allocations: 1.262 MB / 0.9702 GB, free: 8.438 MB / 0.6667 GB Notification: Performance of collectPreVariables (initialization): time 0.0007861/2.308, allocations: 81.64 kB / 0.9703 GB, free: 8.352 MB / 0.6667 GB Notification: Performance of collectInitialEqns (initialization): time 0.001522/2.309, allocations: 1.47 MB / 0.9717 GB, free: 6.859 MB / 0.6667 GB Notification: Performance of collectInitialBindings (initialization): time 0.00174/2.311, allocations: 0.9357 MB / 0.9726 GB, free: 5.91 MB / 0.6667 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004676/2.312, allocations: 67.94 kB / 0.9727 GB, free: 5.844 MB / 0.6667 GB Notification: Performance of setup shared object (initialization): time 0.0003847/2.312, allocations: 448.8 kB / 0.9731 GB, free: 5.398 MB / 0.6667 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00592/2.318, allocations: 2.115 MB / 0.9752 GB, free: 3.281 MB / 0.6667 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007219/2.325, allocations: 3.013 MB / 0.9781 GB, free: 15.89 MB / 0.6823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.007312/2.333, allocations: 2.592 MB / 0.9807 GB, free: 13.27 MB / 0.6823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.841e-05/2.333, allocations: 12 kB / 0.9807 GB, free: 13.26 MB / 0.6823 GB Notification: Performance of matching and sorting (n=416) (initialization): time 0.0309/2.364, allocations: 8.096 MB / 0.9886 GB, free: 5.102 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 0.00575/2.369, allocations: 10.63 MB / 0.999 GB, free: 9.633 MB / 0.698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001017/2.37, allocations: 24 kB / 0.999 GB, free: 9.609 MB / 0.698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0467/2.416, allocations: 6.513 MB / 1.005 GB, free: 3.082 MB / 0.698 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007886/2.424, allocations: 0.8774 MB / 1.006 GB, free: 2.203 MB / 0.698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04198/2.466, allocations: 14.62 MB / 1.02 GB, free: 3.406 MB / 0.7136 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007613/2.474, allocations: 0.5342 MB / 1.021 GB, free: 2.871 MB / 0.7136 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001023/2.475, allocations: 191.9 kB / 1.021 GB, free: 2.684 MB / 0.7136 GB Notification: Performance of prepare postOptimizeDAE: time 1.504e-05/2.475, allocations: 7.938 kB / 1.021 GB, free: 2.676 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 postOpt replaceHomotopyWithSimplified (initialization): time 0.008253/2.483, allocations: 2.648 MB / 1.024 GB, free: 15.99 MB / 0.7292 GB Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed. Error: No system for the symbolic initialization was generated