Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.854/1.854, allocations: 292.3 MB / 308.1 MB, free: 4.305 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001613/0.001613, allocations: 182.4 kB / 376.9 MB, free: 1.816 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.472/1.472, allocations: 205 MB / 0.6354 GB, free: 9.809 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009817/0.0009815, allocations: 93.42 kB / 0.7479 GB, free: 61.07 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.001115/0.001115, allocations: 55.92 kB / 0.8704 GB, free: 13.07 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2597/0.2608, allocations: 114.5 MB / 0.9823 GB, free: 10.36 MB / 0.7136 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02181/0.2827, allocations: 18.11 MB / 0.9999 GB, free: 8.168 MB / 0.7292 GB Notification: Performance of NFInst.instExpressions: time 0.01336/0.2961, allocations: 6.923 MB / 1.007 GB, free: 1.227 MB / 0.7292 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00238/0.2985, allocations: 43.88 kB / 1.007 GB, free: 1.184 MB / 0.7292 GB Notification: Performance of NFTyping.typeComponents: time 0.004221/0.3028, allocations: 1.346 MB / 1.008 GB, free: 15.83 MB / 0.7448 GB Notification: Performance of NFTyping.typeBindings: time 0.004502/0.3073, allocations: 1.335 MB / 1.009 GB, free: 14.49 MB / 0.7448 GB Notification: Performance of NFTyping.typeClassSections: time 0.003733/0.311, allocations: 1.17 MB / 1.011 GB, free: 13.32 MB / 0.7448 GB Notification: Performance of NFFlatten.flatten: time 0.009192/0.3202, allocations: 8.553 MB / 1.019 GB, free: 4.75 MB / 0.7448 GB Notification: Performance of NFFlatten.resolveConnections: time 0.5953/0.9156, allocations: 7.93 MB / 1.027 GB, free: 67.89 MB / 0.7448 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004619/0.9203, allocations: 1.999 MB / 1.029 GB, free: 67.85 MB / 0.7448 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007074/0.9274, allocations: 3.071 MB / 1.032 GB, free: 67.59 MB / 0.7448 GB Notification: Performance of NFPackage.collectConstants: time 0.00234/0.9298, allocations: 368.2 kB / 1.032 GB, free: 67.59 MB / 0.7448 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004828/0.9346, allocations: 1.304 MB / 1.033 GB, free: 67.59 MB / 0.7448 GB Notification: Performance of NFScalarize.scalarize: time 0.00457/0.9392, allocations: 2.093 MB / 1.035 GB, free: 67.46 MB / 0.7448 GB Notification: Performance of NFVerifyModel.verify: time 0.004588/0.9438, allocations: 2.013 MB / 1.037 GB, free: 66.95 MB / 0.7448 GB Notification: Performance of NFConvertDAE.convert: time 0.01362/0.9574, allocations: 7.666 MB / 1.045 GB, free: 66.32 MB / 0.7448 GB Notification: Performance of FrontEnd - DAE generated: time 8.195e-06/0.9575, allocations: 7.812 kB / 1.045 GB, free: 66.32 MB / 0.7448 GB Notification: Performance of FrontEnd: time 2.175e-06/0.9575, allocations: 0 / 1.045 GB, free: 66.32 MB / 0.7448 GB Notification: Performance of Transformations before backend: time 0.0003256/0.9578, allocations: 0 / 1.045 GB, free: 66.32 MB / 0.7448 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 0.01661/0.9745, allocations: 3.822 MB / 1.048 GB, free: 64.89 MB / 0.7448 GB Notification: Performance of prepare preOptimizeDAE: time 5.162e-05/0.9745, allocations: 10.09 kB / 1.048 GB, free: 64.89 MB / 0.7448 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01368/0.9882, allocations: 2.348 MB / 1.051 GB, free: 64.69 MB / 0.7448 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007396/0.9957, allocations: 2.165 MB / 1.053 GB, free: 64.24 MB / 0.7448 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002679/0.996, allocations: 270.6 kB / 1.053 GB, free: 64.23 MB / 0.7448 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002708/0.9987, allocations: 348.4 kB / 1.053 GB, free: 64.23 MB / 0.7448 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02381/1.023, allocations: 7.126 MB / 1.06 GB, free: 63.86 MB / 0.7448 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001187/1.023, allocations: 7.031 kB / 1.06 GB, free: 63.86 MB / 0.7448 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007566/1.023, allocations: 143 kB / 1.061 GB, free: 63.86 MB / 0.7448 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005574/1.024, allocations: 337.4 kB / 1.061 GB, free: 63.85 MB / 0.7448 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01801/1.042, allocations: 7.001 MB / 1.068 GB, free: 62.86 MB / 0.7448 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 0.04194/1.084, allocations: 26.68 MB / 1.094 GB, free: 43.8 MB / 0.7448 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008415/1.092, allocations: 4.983 MB / 1.099 GB, free: 41.06 MB / 0.7448 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005667/1.098, allocations: 2.599 MB / 1.101 GB, free: 40.29 MB / 0.7448 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002967/1.099, allocations: 130 kB / 1.101 GB, free: 40.2 MB / 0.7448 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.785e-05/1.099, allocations: 66.33 kB / 1.101 GB, free: 40.13 MB / 0.7448 GB Notification: Performance of pre-optimization done (n=208): time 4.047e-06/1.099, allocations: 0 / 1.101 GB, free: 40.13 MB / 0.7448 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 0.1097/1.208, allocations: 30.95 MB / 1.132 GB, free: 32.94 MB / 0.7448 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001498/1.209, allocations: 244.5 kB / 1.132 GB, free: 32.68 MB / 0.7448 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003681/1.212, allocations: 1.446 MB / 1.133 GB, free: 32.14 MB / 0.7448 GB Notification: Performance of collectPreVariables (initialization): time 0.0009582/1.213, allocations: 66.64 kB / 1.133 GB, free: 32.08 MB / 0.7448 GB Notification: Performance of collectInitialEqns (initialization): time 0.001344/1.215, allocations: 1.496 MB / 1.135 GB, free: 30.95 MB / 0.7448 GB Notification: Performance of collectInitialBindings (initialization): time 0.001631/1.216, allocations: 0.9189 MB / 1.136 GB, free: 30.23 MB / 0.7448 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001483/1.218, allocations: 0.63 MB / 1.136 GB, free: 29.96 MB / 0.7448 GB Notification: Performance of setup shared object (initialization): time 6.211e-05/1.218, allocations: 303.1 kB / 1.137 GB, free: 29.66 MB / 0.7448 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006726/1.224, allocations: 2.672 MB / 1.139 GB, free: 28.83 MB / 0.7448 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007629/1.232, allocations: 3.548 MB / 1.143 GB, free: 26.95 MB / 0.7448 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01357/1.246, allocations: 6.38 MB / 1.149 GB, free: 24 MB / 0.7448 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.322e-05/1.246, allocations: 9.656 kB / 1.149 GB, free: 24 MB / 0.7448 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 0.0288/1.275, allocations: 10.99 MB / 1.16 GB, free: 19.44 MB / 0.7448 GB Notification: Performance of prepare postOptimizeDAE: time 6.125e-05/1.275, allocations: 20.39 kB / 1.16 GB, free: 19.43 MB / 0.7448 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.441e-05/1.275, allocations: 26.66 kB / 1.16 GB, free: 19.43 MB / 0.7448 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01882/1.294, allocations: 5.464 MB / 1.165 GB, free: 16.86 MB / 0.7448 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004333/1.298, allocations: 0.9861 MB / 1.166 GB, free: 16.59 MB / 0.7448 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03608/1.334, allocations: 25.76 MB / 1.191 GB, free: 7.449 MB / 0.7605 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004897/1.339, allocations: 0.5587 MB / 1.192 GB, free: 6.891 MB / 0.7605 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004923/1.34, allocations: 148 kB / 1.192 GB, free: 6.746 MB / 0.7605 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008504/1.348, allocations: 3.968 MB / 1.196 GB, free: 2.77 MB / 0.7605 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006619/1.355, allocations: 3.516 MB / 1.199 GB, free: 14.89 MB / 0.7761 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09025/1.445, allocations: 24.56 MB / 1.223 GB, free: 5.934 MB / 0.7917 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.415e-05/1.445, allocations: 4 kB / 1.223 GB, free: 5.93 MB / 0.7917 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 0.02606/1.471, allocations: 10.49 MB / 1.233 GB, free: 11.51 MB / 0.8073 GB Notification: Performance of prepare postOptimizeDAE: time 4.08e-05/1.471, allocations: 16 kB / 1.233 GB, free: 11.49 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.917e-05/1.471, allocations: 28 kB / 1.233 GB, free: 11.46 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01513/1.486, allocations: 4.241 MB / 1.237 GB, free: 7.207 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004857/1.491, allocations: 1.033 MB / 1.238 GB, free: 6.215 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03528/1.527, allocations: 24.96 MB / 1.263 GB, free: 12.64 MB / 0.8386 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004527/1.531, allocations: 0.5303 MB / 1.263 GB, free: 12.11 MB / 0.8386 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004675/1.532, allocations: 148 kB / 1.264 GB, free: 11.97 MB / 0.8386 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 0.00105/1.533, allocations: 416.8 kB / 1.264 GB, free: 11.6 MB / 0.8386 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006664/1.533, allocations: 197.7 kB / 1.264 GB, free: 11.4 MB / 0.8386 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 0.02873/1.562, allocations: 10.16 MB / 1.274 GB, free: 1.246 MB / 0.8386 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.641e-05/1.562, allocations: 28 kB / 1.274 GB, free: 1.219 MB / 0.8386 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.634e-05/1.562, allocations: 12 kB / 1.274 GB, free: 1.207 MB / 0.8386 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.788e-05/1.562, allocations: 15.95 kB / 1.274 GB, free: 1.191 MB / 0.8386 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 0.03829/1.601, allocations: 16.3 MB / 1.29 GB, free: 0.7031 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.663e-05/1.601, allocations: 8.188 kB / 1.29 GB, free: 0.6953 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003418/1.604, allocations: 0.7333 MB / 1.291 GB, free: 15.96 MB / 0.8698 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01907/1.623, allocations: 5.096 MB / 1.296 GB, free: 10.85 MB / 0.8698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001112/1.624, allocations: 79.89 kB / 1.296 GB, free: 10.77 MB / 0.8698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03956/1.664, allocations: 24.84 MB / 1.32 GB, free: 1.465 MB / 0.8855 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.748e-06/1.664, allocations: 12.03 kB / 1.32 GB, free: 1.453 MB / 0.8855 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 0.03551/1.699, allocations: 14.42 MB / 1.334 GB, free: 2.727 MB / 0.9011 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002127/1.702, allocations: 0.7218 MB / 1.335 GB, free: 1.984 MB / 0.9011 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000402/1.702, allocations: 59.89 kB / 1.335 GB, free: 1.926 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003584/1.706, allocations: 0.5031 MB / 1.335 GB, free: 1.422 MB / 0.9011 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008483/1.707, allocations: 226.4 kB / 1.336 GB, free: 1.199 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000256/1.707, allocations: 91.89 kB / 1.336 GB, free: 1.109 MB / 0.9011 GB Notification: Performance of sorting global known variables: time 0.001594/1.708, allocations: 0.9816 MB / 1.337 GB, free: 128 kB / 0.9011 GB Notification: Performance of sort global known variables: time 2.21e-07/1.708, allocations: 0 / 1.337 GB, free: 128 kB / 0.9011 GB Notification: Performance of remove unused functions: time 0.007663/1.716, allocations: 1.845 MB / 1.338 GB, free: 14.28 MB / 0.9167 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 0.0004878/1.717, allocations: 174.9 kB / 1.339 GB, free: 14.09 MB / 0.9167 GB Notification: Performance of simCode: created initialization part: time 0.03129/1.748, allocations: 12.36 MB / 1.351 GB, free: 1.641 MB / 0.9167 GB Notification: Performance of simCode: created event and clocks part: time 1.661e-05/1.748, allocations: 0 / 1.351 GB, free: 1.641 MB / 0.9167 GB Notification: Performance of simCode: created simulation system equations: time 0.01177/1.76, allocations: 4.412 MB / 1.355 GB, free: 13.2 MB / 0.9323 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002564/1.762, allocations: 282.1 kB / 1.355 GB, free: 12.93 MB / 0.9323 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02932/1.792, allocations: 12.56 MB / 1.368 GB, free: 236 kB / 0.9323 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004297/1.796, allocations: 2.935 MB / 1.37 GB, free: 13.26 MB / 0.948 GB Notification: Performance of simCode: alias equations: time 0.005355/1.801, allocations: 1.645 MB / 1.372 GB, free: 11.61 MB / 0.948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006977/1.802, allocations: 175.3 kB / 1.372 GB, free: 11.44 MB / 0.948 GB Notification: Performance of SimCode: time 8.91e-07/1.802, allocations: 0 / 1.372 GB, free: 11.44 MB / 0.948 GB Notification: Performance of Templates: time 0.5478/2.35, allocations: 78.01 MB / 1.448 GB, free: 272.4 MB / 0.948 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)