Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001912/0.001912, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002865/0.002865, allocations: 193 kB / 16.13 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.59/1.59, allocations: 205.1 MB / 222 MB, free: 4.945 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.656/1.656, allocations: 251.6 MB / 0.5088 GB, free: 3.371 MB / 414.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001972/0.001972, allocations: 71.84 kB / 0.6216 GB, free: 1.957 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7033/0.7053, allocations: 104.7 MB / 0.7238 GB, free: 13.34 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD): time 0.02276/0.7282, allocations: 18.03 MB / 0.7414 GB, free: 11.24 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.0137/0.7419, allocations: 6.892 MB / 0.7482 GB, free: 4.32 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003064/0.745, allocations: 43.88 kB / 0.7482 GB, free: 4.277 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.004086/0.7492, allocations: 1.345 MB / 0.7495 GB, free: 2.93 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.005672/0.7549, allocations: 1.324 MB / 0.7508 GB, free: 1.602 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.004283/0.7592, allocations: 1.169 MB / 0.752 GB, free: 444 kB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.009699/0.7689, allocations: 8.479 MB / 0.7602 GB, free: 7.938 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01148/0.7804, allocations: 7.9 MB / 0.768 GB, free: 15.93 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004119/0.7846, allocations: 1.966 MB / 0.7699 GB, free: 13.96 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005933/0.7905, allocations: 3.05 MB / 0.7729 GB, free: 10.9 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.001211/0.7918, allocations: 368 kB / 0.7732 GB, free: 10.54 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004222/0.796, allocations: 1.287 MB / 0.7745 GB, free: 9.254 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.002676/0.7987, allocations: 2.082 MB / 0.7765 GB, free: 7.168 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.003191/0.8019, allocations: 1.995 MB / 0.7785 GB, free: 5.164 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.009767/0.8117, allocations: 7.615 MB / 0.7859 GB, free: 13.53 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 6.172e-06/0.8117, allocations: 4 kB / 0.7859 GB, free: 13.52 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.563e-06/0.8118, allocations: 0 / 0.7859 GB, free: 13.52 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 0.0002977/0.8121, allocations: 0 / 0.7859 GB, free: 13.52 MB / 0.6075 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 0.01202/0.8241, allocations: 3.784 MB / 0.7896 GB, free: 9.68 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 5.129e-05/0.8242, allocations: 12.03 kB / 0.7896 GB, free: 9.668 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01202/0.8362, allocations: 2.333 MB / 0.7919 GB, free: 7.328 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00525/0.8415, allocations: 2.147 MB / 0.794 GB, free: 5.137 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002241/0.8417, allocations: 267.4 kB / 0.7942 GB, free: 4.875 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001243/0.843, allocations: 343.9 kB / 0.7946 GB, free: 4.539 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01702/0.86, allocations: 7.103 MB / 0.8015 GB, free: 13.34 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002003/0.8603, allocations: 7.922 kB / 0.8015 GB, free: 13.33 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001341/0.8616, allocations: 148 kB / 0.8016 GB, free: 13.18 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005525/0.8622, allocations: 326 kB / 0.802 GB, free: 12.86 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01906/0.8813, allocations: 6.989 MB / 0.8088 GB, free: 5.859 MB / 0.6231 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04096/0.9223, allocations: 26.54 MB / 0.8347 GB, free: 9.148 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008621/0.9309, allocations: 4.988 MB / 0.8396 GB, free: 3.859 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005723/0.9367, allocations: 2.6 MB / 0.8421 GB, free: 1.242 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000331/0.9371, allocations: 135 kB / 0.8422 GB, free: 1.094 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.587e-05/0.9371, allocations: 56.56 kB / 0.8423 GB, free: 1.027 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=208): time 4.339e-06/0.9372, allocations: 4 kB / 0.8423 GB, free: 1.023 MB / 0.6544 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=271): time 0.1031/1.04, allocations: 30.9 MB / 0.8725 GB, free: 2.027 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001644/1.04, allocations: 235.6 kB / 0.8727 GB, free: 1.75 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00231/1.043, allocations: 1.404 MB / 0.8741 GB, free: 344 kB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 0.0006139/1.043, allocations: 73.7 kB / 0.8741 GB, free: 264 kB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.00098/1.044, allocations: 1.482 MB / 0.8756 GB, free: 14.75 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.001084/1.046, allocations: 0.9165 MB / 0.8765 GB, free: 13.82 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001196/1.047, allocations: 0.6356 MB / 0.8771 GB, free: 13.18 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001252/1.047, allocations: 301.1 kB / 0.8774 GB, free: 12.88 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005527/1.052, allocations: 2.674 MB / 0.88 GB, free: 10.2 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00618/1.059, allocations: 3.552 MB / 0.8835 GB, free: 6.27 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.012/1.071, allocations: 6.383 MB / 0.8897 GB, free: 15.49 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3e-05/1.071, allocations: 8 kB / 0.8897 GB, free: 15.48 MB / 0.7169 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization): time 0.02739/1.098, allocations: 10.99 MB / 0.9004 GB, free: 4.387 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 4.664e-05/1.098, allocations: 16 kB / 0.9005 GB, free: 4.371 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.245e-05/1.098, allocations: 28 kB / 0.9005 GB, free: 4.344 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.5312/1.629, allocations: 5.457 MB / 0.9058 GB, free: 163.4 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004836/1.634, allocations: 0.986 MB / 0.9068 GB, free: 163.4 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04495/1.679, allocations: 25.73 MB / 0.9319 GB, free: 151 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006067/1.685, allocations: 0.5562 MB / 0.9324 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006658/1.686, allocations: 149.6 kB / 0.9326 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.01063/1.697, allocations: 3.965 MB / 0.9365 GB, free: 149.6 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.008041/1.705, allocations: 3.518 MB / 0.9399 GB, free: 147.5 MB / 0.7169 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08729/1.792, allocations: 24.55 MB / 0.9639 GB, free: 122.7 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.736e-05/1.792, allocations: 8 kB / 0.9639 GB, free: 122.7 MB / 0.7169 GB Warning: The linear system: 1 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] 3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2] 4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v1_p[2] ; line2.v3_p[2] ; line2.v3_n[2] ] = [ -transformer.conv3.V2[2] ; line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ; -loadRL.load3.v[2] ; line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1] ] might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 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 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02272/1.815, allocations: 10.5 MB / 0.9741 GB, free: 112.2 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 4.115e-05/1.815, allocations: 16 kB / 0.9741 GB, free: 112.2 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.906e-05/1.815, allocations: 28.56 kB / 0.9742 GB, free: 112.1 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01358/1.829, allocations: 4.246 MB / 0.9783 GB, free: 107.9 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004137/1.833, allocations: 1.03 MB / 0.9793 GB, free: 106.8 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02626/1.859, allocations: 24.93 MB / 1.004 GB, free: 81.28 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003949/1.863, allocations: 0.5371 MB / 1.004 GB, free: 80.75 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005399/1.864, allocations: 148 kB / 1.004 GB, free: 80.6 MB / 0.7169 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001171/1.865, allocations: 401.5 kB / 1.005 GB, free: 80.22 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006218/1.866, allocations: 201.6 kB / 1.005 GB, free: 80.02 MB / 0.7169 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0221/1.888, allocations: 10.16 MB / 1.015 GB, free: 69.78 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.999e-05/1.888, allocations: 31.66 kB / 1.015 GB, free: 69.75 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.625e-05/1.888, allocations: 16 kB / 1.015 GB, free: 69.73 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.461e-05/1.888, allocations: 11.95 kB / 1.015 GB, free: 69.72 MB / 0.7169 GB Warning: The linear system: 1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 2 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 3 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 4 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ] = [ -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v2_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03042/1.918, allocations: 16.29 MB / 1.031 GB, free: 53.26 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.929e-05/1.918, allocations: 8 kB / 1.031 GB, free: 53.25 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003133/1.921, allocations: 0.7336 MB / 1.032 GB, free: 52.52 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0161/1.938, allocations: 5.11 MB / 1.037 GB, free: 47.39 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005168/1.938, allocations: 67.95 kB / 1.037 GB, free: 47.33 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03074/1.969, allocations: 24.82 MB / 1.061 GB, free: 22.04 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.556e-06/1.969, allocations: 19.97 kB / 1.061 GB, free: 22.02 MB / 0.7169 GB Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02181/1.991, allocations: 10.1 MB / 1.071 GB, free: 11.68 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001743/1.993, allocations: 0.7093 MB / 1.071 GB, free: 10.95 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004321/1.993, allocations: 59.98 kB / 1.071 GB, free: 10.89 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003098/1.996, allocations: 0.4992 MB / 1.072 GB, free: 10.39 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000893/1.997, allocations: 230.3 kB / 1.072 GB, free: 10.17 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002111/1.997, allocations: 91.95 kB / 1.072 GB, free: 10.08 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001124/1.998, allocations: 0.945 MB / 1.073 GB, free: 9.133 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.4e-07/1.998, allocations: 0 / 1.073 GB, free: 9.133 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.006285/2.005, allocations: 1.827 MB / 1.075 GB, free: 7.309 MB / 0.7169 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 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (165): * Single equations (assignments): 162 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(10,44,70.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0004656/2.005, allocations: 188.8 kB / 1.075 GB, free: 7.121 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.02645/2.032, allocations: 12.35 MB / 1.087 GB, free: 10.66 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 1.936e-05/2.032, allocations: 4.062 kB / 1.087 GB, free: 10.66 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.01049/2.042, allocations: 4.408 MB / 1.091 GB, free: 6.219 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002286/2.044, allocations: 264.7 kB / 1.092 GB, free: 5.961 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02193/2.066, allocations: 10.56 MB / 1.102 GB, free: 11.29 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003502/2.07, allocations: 2.836 MB / 1.105 GB, free: 8.422 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.00511/2.075, allocations: 1.637 MB / 1.106 GB, free: 6.781 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007124/2.076, allocations: 171.3 kB / 1.107 GB, free: 6.613 MB / 0.7481 GB Notification: Performance of SimCode: time 1.373e-06/2.076, allocations: 0 / 1.107 GB, free: 6.613 MB / 0.7481 GB Notification: Performance of Templates: time 0.1152/2.191, allocations: 74.53 MB / 1.179 GB, free: 12.28 MB / 0.8262 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.makefile (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1)