Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD") Notification: Performance of loadModel(Buildings): time 4.544/4.544, allocations: 458.9 MB / 473.4 MB, free: 11.89 MB / 378.7 MB Notification: Performance of FrontEnd - loaded program: time 3.026e-05/3.022e-05, allocations: 2.625 kB / 0.5697 GB, free: 9.801 MB / 458.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.224/0.224, allocations: 106.2 MB / 0.6735 GB, free: 2.617 MB / 0.5417 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD): time 0.02549/0.2496, allocations: 14.25 MB / 0.6874 GB, free: 4.312 MB / 0.5573 GB Notification: Performance of NFInst.instExpressions: time 0.01371/0.2633, allocations: 5.604 MB / 0.6929 GB, free: 14.7 MB / 0.573 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00169/0.2651, allocations: 55.88 kB / 0.6929 GB, free: 14.64 MB / 0.573 GB Notification: Performance of NFTyping.typeComponents: time 0.001595/0.2667, allocations: 369.8 kB / 0.6933 GB, free: 14.28 MB / 0.573 GB Notification: Performance of NFTyping.typeBindings: time 0.003758/0.2705, allocations: 0.7357 MB / 0.694 GB, free: 13.54 MB / 0.573 GB Notification: Performance of NFTyping.typeClassSections: time 0.003454/0.274, allocations: 0.7563 MB / 0.6947 GB, free: 12.78 MB / 0.573 GB Notification: Performance of NFFlatten.flatten: time 0.004481/0.2786, allocations: 1.731 MB / 0.6964 GB, free: 11.05 MB / 0.573 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01277/0.2914, allocations: 5.518 MB / 0.7018 GB, free: 5.477 MB / 0.573 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002495/0.2939, allocations: 0.9468 MB / 0.7027 GB, free: 4.527 MB / 0.573 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003734/0.2977, allocations: 1.411 MB / 0.7041 GB, free: 3.113 MB / 0.573 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002685/0.3005, allocations: 0.5735 MB / 0.7047 GB, free: 2.539 MB / 0.573 GB Notification: Performance of NFPackage.collectConstants: time 0.001327/0.3019, allocations: 156 kB / 0.7048 GB, free: 2.387 MB / 0.573 GB Notification: Performance of NFScalarize.scalarize: time 0.002863/0.3048, allocations: 1.489 MB / 0.7063 GB, free: 0.8945 MB / 0.573 GB Notification: Performance of NFVerifyModel.verify: time 0.001777/0.3066, allocations: 260 kB / 0.7065 GB, free: 0.6406 MB / 0.573 GB Notification: Performance of NFConvertDAE.convert: time 0.009467/0.3161, allocations: 5.517 MB / 0.7119 GB, free: 11.11 MB / 0.5886 GB Notification: Performance of FrontEnd - DAE generated: time 5.08e-06/0.3162, allocations: 4 kB / 0.7119 GB, free: 11.11 MB / 0.5886 GB Notification: Performance of FrontEnd: time 2.936e-06/0.3162, allocations: 0 / 0.7119 GB, free: 11.11 MB / 0.5886 GB Notification: Performance of Transformations before backend: time 0.0002278/0.3164, allocations: 3.938 kB / 0.7119 GB, free: 11.1 MB / 0.5886 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 0.0108/0.3272, allocations: 2.722 MB / 0.7146 GB, free: 8.32 MB / 0.5886 GB Notification: Performance of prepare preOptimizeDAE: time 5.044e-05/0.3273, allocations: 8.031 kB / 0.7146 GB, free: 8.312 MB / 0.5886 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03086/0.3582, allocations: 2.418 MB / 0.7169 GB, free: 5.887 MB / 0.5886 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006701/0.3649, allocations: 1.955 MB / 0.7188 GB, free: 3.883 MB / 0.5886 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003673/0.3653, allocations: 234.2 kB / 0.7191 GB, free: 3.652 MB / 0.5886 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001646/0.367, allocations: 303.9 kB / 0.7194 GB, free: 3.355 MB / 0.5886 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02389/0.3909, allocations: 6.379 MB / 0.7256 GB, free: 12.86 MB / 0.6042 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001269/0.3911, allocations: 3.938 kB / 0.7256 GB, free: 12.86 MB / 0.6042 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001106/0.3922, allocations: 135.9 kB / 0.7257 GB, free: 12.73 MB / 0.6042 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008472/0.3931, allocations: 321.4 kB / 0.726 GB, free: 12.41 MB / 0.6042 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02782/0.4209, allocations: 6.555 MB / 0.7324 GB, free: 5.84 MB / 0.6042 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05331/0.4743, allocations: 25.2 MB / 0.757 GB, free: 10.51 MB / 0.6355 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01604/0.4904, allocations: 5.413 MB / 0.7623 GB, free: 4.738 MB / 0.6355 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005696/0.491, allocations: 135 kB / 0.7624 GB, free: 4.59 MB / 0.6355 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.419e-05/0.4911, allocations: 68.5 kB / 0.7625 GB, free: 4.516 MB / 0.6355 GB Notification: Performance of pre-optimization done (n=230): time 4.949e-06/0.4911, allocations: 0 / 0.7625 GB, free: 4.516 MB / 0.6355 GB Notification: Performance of matching and sorting (n=311): time 0.2026/0.6937, allocations: 31.1 MB / 0.7929 GB, free: 5.234 MB / 0.6667 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001667/0.694, allocations: 239.9 kB / 0.7931 GB, free: 4.949 MB / 0.6667 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002769/0.6967, allocations: 1.136 MB / 0.7942 GB, free: 3.801 MB / 0.6667 GB Notification: Performance of collectPreVariables (initialization): time 0.0007614/0.6976, allocations: 73.7 kB / 0.7943 GB, free: 3.723 MB / 0.6667 GB Notification: Performance of collectInitialEqns (initialization): time 0.001375/0.699, allocations: 1.246 MB / 0.7955 GB, free: 2.453 MB / 0.6667 GB Notification: Performance of collectInitialBindings (initialization): time 0.001996/0.701, allocations: 1.043 MB / 0.7965 GB, free: 1.395 MB / 0.6667 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005499/0.7016, allocations: 64 kB / 0.7966 GB, free: 1.332 MB / 0.6667 GB Notification: Performance of setup shared object (initialization): time 0.0004163/0.702, allocations: 440.7 kB / 0.797 GB, free: 0.8945 MB / 0.6667 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01253/0.7146, allocations: 2.735 MB / 0.7997 GB, free: 14.16 MB / 0.6823 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01275/0.7274, allocations: 3.412 MB / 0.803 GB, free: 10.48 MB / 0.6823 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01291/0.7403, allocations: 3.142 MB / 0.8061 GB, free: 7.324 MB / 0.6823 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.788e-05/0.7404, allocations: 4 kB / 0.8061 GB, free: 7.32 MB / 0.6823 GB Notification: Performance of matching and sorting (n=412) (initialization): time 0.6547/1.395, allocations: 10.44 MB / 0.8163 GB, free: 125.6 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 0.002022/1.397, allocations: 7.061 MB / 0.8232 GB, free: 118.2 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.233e-05/1.397, allocations: 21.78 kB / 0.8232 GB, free: 118.2 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.04389/1.441, allocations: 5.257 MB / 0.8283 GB, free: 117.6 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01084/1.452, allocations: 0.9347 MB / 0.8292 GB, free: 117.5 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04945/1.502, allocations: 17.39 MB / 0.8462 GB, free: 109.4 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007126/1.509, allocations: 0.5129 MB / 0.8467 GB, free: 109.4 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009508/1.51, allocations: 139.5 kB / 0.8469 GB, free: 109.4 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 1.629e-05/1.51, allocations: 3.844 kB / 0.8469 GB, free: 109.4 MB / 0.6823 GB Warning: The linear system: 1 : line2.i3[1] - transformer.conv2.terminal_p.i[1] = -transformer.conv3.terminal_p.i[1] 2 : line2.i2[1] - transformer.conv1.terminal_p.i[1] = -transformer.conv2.terminal_p.i[1] 3 : line2.i1[1] - transformer.conv3.terminal_p.i[1] = -transformer.conv1.terminal_p.i[1] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ transformer.conv3.terminal_p.i[1] ; transformer.conv1.terminal_p.i[1] ; transformer.conv2.terminal_p.i[1] ] = [ -line2.i3[1] ; -line2.i2[1] ; -line2.i1[1] ] might be structurally or numerically singular for variable transformer.conv2.terminal_p.i[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : line2.i3[2] - transformer.conv2.terminal_p.i[2] = -transformer.conv3.terminal_p.i[2] 2 : line2.i1[2] - transformer.conv3.terminal_p.i[2] = -transformer.conv1.terminal_p.i[2] 3 : line2.i2[2] - transformer.conv1.terminal_p.i[2] = -transformer.conv2.terminal_p.i[2] [ -1.0 , 0.0 , 1.0 ; 0.0 , 1.0 , -1.0 ; 1.0 , -1.0 , 0.0 ] * [ transformer.conv2.terminal_p.i[2] ; transformer.conv1.terminal_p.i[2] ; transformer.conv3.terminal_p.i[2] ] = [ -line2.i3[2] ; -line2.i1[2] ; -line2.i2[2] ] might be structurally or numerically singular for variable transformer.conv3.terminal_p.i[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[2] = line2.v1_n[2] - line2.v2_n[2] 2 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 3 : transformer.conv2.V2[2] = line2.v2_n[2] - line2.v3_n[2] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ line2.v2_n[2] ; line2.v3_n[2] ; line2.v1_n[2] ] = [ -transformer.conv1.V2[2] ; -transformer.conv3.V2[2] ; -transformer.conv2.V2[2] ] might be structurally or numerically singular for variable line2.v1_n[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : transformer.conv3.V2[1] = line2.v3_n[1] - line2.v1_n[1] 3 : transformer.conv2.V2[1] = line2.v2_n[1] - line2.v3_n[1] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v3_n[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; -transformer.conv3.V2[1] ; -transformer.conv2.V2[1] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03626/1.546, allocations: 9.468 MB / 0.8561 GB, free: 104.4 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.414e-05/1.546, allocations: 20.41 kB / 0.8561 GB, free: 104.4 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01754/1.564, allocations: 3.153 MB / 0.8592 GB, free: 102.9 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009356/1.573, allocations: 1.099 MB / 0.8603 GB, free: 102.5 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03996/1.613, allocations: 26.17 MB / 0.8858 GB, free: 77.35 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00668/1.62, allocations: 0.5007 MB / 0.8863 GB, free: 76.85 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007558/1.621, allocations: 136 kB / 0.8865 GB, free: 76.72 MB / 0.6823 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (270): * Single equations (assignments): 268 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(9,85.2%) 63} * Non-linear torn systems: 1 {9 63} Notification: Performance of prepare postOptimizeDAE: time 0.003496/1.624, allocations: 1.319 MB / 0.8877 GB, free: 75.4 MB / 0.6823 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008146/1.625, allocations: 201.7 kB / 0.8879 GB, free: 75.2 MB / 0.6823 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04442/1.67, allocations: 10.7 MB / 0.8984 GB, free: 64.43 MB / 0.6823 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.183e-05/1.67, allocations: 32 kB / 0.8984 GB, free: 64.4 MB / 0.6823 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.645e-05/1.67, allocations: 16 kB / 0.8984 GB, free: 64.39 MB / 0.6823 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.461e-05/1.67, allocations: 19.94 kB / 0.8985 GB, free: 64.37 MB / 0.6823 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.05592/1.726, allocations: 15.98 MB / 0.9141 GB, free: 48.2 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.751e-05/1.726, allocations: 12.06 kB / 0.9141 GB, free: 48.19 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.006303/1.732, allocations: 0.7399 MB / 0.9148 GB, free: 47.45 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02883/1.761, allocations: 5.042 MB / 0.9197 GB, free: 42.39 MB / 0.6823 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007921/1.762, allocations: 79.95 kB / 0.9198 GB, free: 42.32 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.06318/1.825, allocations: 26.02 MB / 0.9452 GB, free: 16.02 MB / 0.6823 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.085e-05/1.825, allocations: 20.02 kB / 0.9452 GB, free: 16 MB / 0.6823 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0406/1.866, allocations: 10.43 MB / 0.9554 GB, free: 5.195 MB / 0.6823 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002439/1.868, allocations: 0.7701 MB / 0.9562 GB, free: 4.406 MB / 0.6823 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008555/1.869, allocations: 64 kB / 0.9562 GB, free: 4.344 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006327/1.876, allocations: 499.2 kB / 0.9567 GB, free: 3.855 MB / 0.6823 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001182/1.877, allocations: 266.9 kB / 0.957 GB, free: 3.59 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004754/1.877, allocations: 99.95 kB / 0.957 GB, free: 3.492 MB / 0.6823 GB Notification: Performance of sorting global known variables: time 0.001822/1.879, allocations: 0.9084 MB / 0.9579 GB, free: 2.578 MB / 0.6823 GB Notification: Performance of sort global known variables: time 7.02e-07/1.879, allocations: 0 / 0.9579 GB, free: 2.578 MB / 0.6823 GB Notification: Performance of remove unused functions: time 0.007937/1.887, allocations: 1.696 MB / 0.9596 GB, free: 0.8828 MB / 0.6823 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (166): * Single equations (assignments): 164 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(9,86.4%) 63} * Non-linear torn systems: 1 {9 63} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009094/1.888, allocations: 187 kB / 0.9598 GB, free: 0.6992 MB / 0.6823 GB Notification: Performance of simCode: created initialization part: time 0.04871/1.937, allocations: 11.98 MB / 0.9715 GB, free: 4.613 MB / 0.698 GB Notification: Performance of simCode: created event and clocks part: time 1.191e-05/1.937, allocations: 3.938 kB / 0.9715 GB, free: 4.609 MB / 0.698 GB Notification: Performance of simCode: created simulation system equations: time 0.01959/1.956, allocations: 4.504 MB / 0.9759 GB, free: 80 kB / 0.698 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002737/1.959, allocations: 238.4 kB / 0.9761 GB, free: 15.85 MB / 0.7136 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05492/2.014, allocations: 11.72 MB / 0.9875 GB, free: 4 MB / 0.7136 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005249/2.02, allocations: 2.699 MB / 0.9902 GB, free: 1.266 MB / 0.7136 GB Notification: Performance of simCode: alias equations: time 0.01018/2.03, allocations: 1.797 MB / 0.9919 GB, free: 15.46 MB / 0.7292 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001271/2.031, allocations: 151.3 kB / 0.9921 GB, free: 15.32 MB / 0.7292 GB Notification: Performance of SimCode: time 1.142e-06/2.031, allocations: 4 kB / 0.9921 GB, free: 15.31 MB / 0.7292 GB Notification: Performance of Templates: time 0.1935/2.225, allocations: 71.73 MB / 1.062 GB, free: 7.758 MB / 0.7917 GB