Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.422/4.422, allocations: 464.6 MB / 476.8 MB, free: 2.176 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.499e-05/4.504e-05, allocations: 4 kB / 0.5732 GB, free: 5.574 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.236/0.236, allocations: 107.2 MB / 0.6779 GB, free: 10.23 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9655/1.202, allocations: 192.9 MB / 0.8663 GB, free: 11.02 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004592/1.202, allocations: 109.9 kB / 0.8664 GB, free: 10.95 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.6244/1.827, allocations: 124 MB / 0.9875 GB, free: 8.992 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 2.725e-06/1.827, allocations: 0 / 0.9875 GB, free: 8.992 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.0002388/1.827, allocations: 64 kB / 0.9876 GB, free: 8.93 MB / 0.7761 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 0.01285/1.84, allocations: 2.701 MB / 0.9902 GB, free: 6.172 MB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 5.805e-05/1.84, allocations: 8.031 kB / 0.9902 GB, free: 6.164 MB / 0.7761 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002509/1.842, allocations: 492.3 kB / 0.9907 GB, free: 5.672 MB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0228/1.865, allocations: 2.087 MB / 0.9927 GB, free: 3.578 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007546/1.873, allocations: 2.005 MB / 0.9947 GB, free: 1.527 MB / 0.7761 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003964/1.873, allocations: 230.2 kB / 0.9949 GB, free: 1.301 MB / 0.7761 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001971/1.875, allocations: 307.9 kB / 0.9952 GB, free: 1 MB / 0.7761 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02066/1.896, allocations: 5.314 MB / 1 GB, free: 11.58 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001628/1.896, allocations: 4 kB / 1 GB, free: 11.58 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001639/1.898, allocations: 128 kB / 1.001 GB, free: 11.45 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009889/1.899, allocations: 293.3 kB / 1.001 GB, free: 11.16 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01788/1.917, allocations: 4.969 MB / 1.006 GB, free: 6.188 MB / 0.7917 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05724/1.974, allocations: 24.86 MB / 1.03 GB, free: 11.27 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01153/1.986, allocations: 4.94 MB / 1.035 GB, free: 5.969 MB / 0.823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006737/1.992, allocations: 2.313 MB / 1.037 GB, free: 3.641 MB / 0.823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004654/1.993, allocations: 135 kB / 1.037 GB, free: 3.488 MB / 0.823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.376e-05/1.993, allocations: 64.5 kB / 1.037 GB, free: 3.418 MB / 0.823 GB
Notification: Performance of pre-optimization done (n=230): time 5.69e-06/1.993, allocations: 4 kB / 1.037 GB, free: 3.414 MB / 0.823 GB
Notification: Performance of matching and sorting (n=311): time 0.2288/2.222, allocations: 30.98 MB / 1.067 GB, free: 4.43 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001622/2.222, allocations: 247.8 kB / 1.068 GB, free: 4.137 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002833/2.225, allocations: 1.149 MB / 1.069 GB, free: 2.973 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009084/2.226, allocations: 77.7 kB / 1.069 GB, free: 2.891 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001253/2.227, allocations: 1.246 MB / 1.07 GB, free: 1.625 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001974/2.229, allocations: 1.047 MB / 1.071 GB, free: 0.5625 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005325/2.23, allocations: 68 kB / 1.071 GB, free: 0.4961 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.0003591/2.23, allocations: 440.7 kB / 1.072 GB, free: 60 kB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006622/2.237, allocations: 2.236 MB / 1.074 GB, free: 13.82 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00768/2.244, allocations: 2.904 MB / 1.077 GB, free: 10.65 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007901/2.252, allocations: 2.652 MB / 1.079 GB, free: 7.977 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.729e-05/2.252, allocations: 8 kB / 1.079 GB, free: 7.969 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03252/2.285, allocations: 8.377 MB / 1.087 GB, free: 15.54 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003241/2.288, allocations: 7.319 MB / 1.095 GB, free: 7.637 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.55e-05/2.288, allocations: 16 kB / 1.095 GB, free: 7.621 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04765/2.336, allocations: 6.755 MB / 1.101 GB, free: 0.8555 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007621/2.344, allocations: 0.8228 MB / 1.102 GB, free: 32 kB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.6651/3.009, allocations: 16.66 MB / 1.118 GB, free: 251.1 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007612/3.016, allocations: 0.5027 MB / 1.119 GB, free: 251.1 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001206/3.018, allocations: 184.3 kB / 1.119 GB, free: 251.1 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.88e-05/3.018, allocations: 6.031 kB / 1.119 GB, free: 251.1 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 0.008893/3.027, allocations: 2.678 MB / 1.122 GB, free: 250.9 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated