Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo", uses=false) Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|err_V2.1.|err_V2.2.|err_V2.3.|err_V3.1.|err_V3.2.|err_V3.3.|err_V4.1.|err_V4.2.|err_V4.3.|err_Theta2.1.|err_Theta2.2.|err_Theta2.3.|err_Theta3.1.|err_Theta3.2.|err_Theta3.3.|err_Theta4.1.|err_Theta4.2.|err_Theta4.3.",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|err_V2.1.|err_V2.2.|err_V2.3.|err_V3.1.|err_V3.2.|err_V3.3.|err_V4.1.|err_V4.2.|err_V4.3.|err_Theta2.1.|err_Theta2.2.|err_Theta2.3.|err_Theta3.1.|err_Theta3.2.|err_Theta3.3.|err_Theta4.1.|err_Theta4.2.|err_Theta4.3.",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001133/0.001133, allocations: 109.3 kB / 16.41 MB, free: 6.504 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001108/0.001108, allocations: 190.6 kB / 17.35 MB, free: 5.738 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.36/1.36, allocations: 222.9 MB / 241 MB, free: 15.2 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.72/2.72, allocations: 461.9 MB / 0.7355 GB, free: 11.04 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001553/0.001553, allocations: 63.91 kB / 1.055 GB, free: 7.555 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8011/0.8026, allocations: 157.4 MB / 1.209 GB, free: 13.58 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.02112/0.8238, allocations: 18.27 MB / 1.226 GB, free: 11.25 MB / 0.9512 GB Notification: Performance of NFInst.instExpressions: time 0.01142/0.8353, allocations: 6.878 MB / 1.233 GB, free: 4.352 MB / 0.9512 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001603/0.8369, allocations: 55.88 kB / 1.233 GB, free: 4.297 MB / 0.9512 GB Notification: Performance of NFTyping.typeComponents: time 0.003908/0.8409, allocations: 1.458 MB / 1.235 GB, free: 2.836 MB / 0.9512 GB Notification: Performance of NFTyping.typeBindings: time 0.003606/0.8445, allocations: 1.451 MB / 1.236 GB, free: 1.379 MB / 0.9512 GB Notification: Performance of NFTyping.typeClassSections: time 0.003361/0.8479, allocations: 1.267 MB / 1.237 GB, free: 116 kB / 0.9512 GB Notification: Performance of NFFlatten.flatten: time 0.006428/0.8543, allocations: 5.468 MB / 1.243 GB, free: 10.63 MB / 0.9669 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01136/0.8657, allocations: 7.12 MB / 1.25 GB, free: 3.402 MB / 0.9669 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005465/0.8712, allocations: 2.38 MB / 1.252 GB, free: 1.016 MB / 0.9669 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005822/0.8771, allocations: 2.968 MB / 1.255 GB, free: 14.04 MB / 0.9825 GB Notification: Performance of NFPackage.collectConstants: time 0.001661/0.8788, allocations: 0.5117 MB / 1.255 GB, free: 13.53 MB / 0.9825 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003405/0.8822, allocations: 1.272 MB / 1.256 GB, free: 12.25 MB / 0.9825 GB Notification: Performance of NFScalarize.scalarize: time 0.003478/0.8857, allocations: 2.257 MB / 1.259 GB, free: 9.992 MB / 0.9825 GB Notification: Performance of NFVerifyModel.verify: time 0.004779/0.8905, allocations: 2.183 MB / 1.261 GB, free: 7.801 MB / 0.9825 GB Notification: Performance of NFConvertDAE.convert: time 0.01082/0.9013, allocations: 7.785 MB / 1.268 GB, free: 15.99 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 6.232e-06/0.9014, allocations: 0 / 1.268 GB, free: 15.99 MB / 0.9981 GB Notification: Performance of FrontEnd: time 1.954e-06/0.9014, allocations: 4 kB / 1.268 GB, free: 15.99 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 0.0002958/0.9017, allocations: 0 / 1.268 GB, free: 15.99 MB / 0.9981 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 0.01219/0.9139, allocations: 3.819 MB / 1.272 GB, free: 12.11 MB / 0.9981 GB Notification: Performance of prepare preOptimizeDAE: time 5.424e-05/0.914, allocations: 8.031 kB / 1.272 GB, free: 12.11 MB / 0.9981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01382/0.9278, allocations: 2.423 MB / 1.275 GB, free: 9.676 MB / 0.9981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005791/0.9336, allocations: 2.182 MB / 1.277 GB, free: 7.449 MB / 0.9981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004513/0.9341, allocations: 271.5 kB / 1.277 GB, free: 7.184 MB / 0.9981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00249/0.9366, allocations: 351.9 kB / 1.277 GB, free: 6.84 MB / 0.9981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02187/0.9585, allocations: 7.155 MB / 1.284 GB, free: 15.58 MB / 1.014 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.000156/0.9587, allocations: 11.92 kB / 1.284 GB, free: 15.57 MB / 1.014 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00133/0.9601, allocations: 152 kB / 1.284 GB, free: 15.42 MB / 1.014 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005526/0.9606, allocations: 330.1 kB / 1.285 GB, free: 15.1 MB / 1.014 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01839/0.979, allocations: 7.044 MB / 1.292 GB, free: 8.043 MB / 1.014 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04249/1.022, allocations: 26.5 MB / 1.317 GB, free: 11.37 MB / 1.045 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009197/1.031, allocations: 4.992 MB / 1.322 GB, free: 6.078 MB / 1.045 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006402/1.037, allocations: 2.612 MB / 1.325 GB, free: 3.441 MB / 1.045 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000368/1.038, allocations: 135 kB / 1.325 GB, free: 3.293 MB / 1.045 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 8.056e-05/1.038, allocations: 64.5 kB / 1.325 GB, free: 3.219 MB / 1.045 GB Notification: Performance of pre-optimization done (n=208): time 5.139e-06/1.038, allocations: 0 / 1.325 GB, free: 3.219 MB / 1.045 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.conv2.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.conv2.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 0.1081/1.146, allocations: 30.95 MB / 1.355 GB, free: 4.176 MB / 1.076 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001336/1.146, allocations: 239.6 kB / 1.356 GB, free: 3.895 MB / 1.076 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002763/1.149, allocations: 1.469 MB / 1.357 GB, free: 2.418 MB / 1.076 GB Notification: Performance of collectPreVariables (initialization): time 0.0005991/1.149, allocations: 69.64 kB / 1.357 GB, free: 2.344 MB / 1.076 GB Notification: Performance of collectInitialEqns (initialization): time 0.001117/1.151, allocations: 1.501 MB / 1.358 GB, free: 0.8242 MB / 1.076 GB Notification: Performance of collectInitialBindings (initialization): time 0.001308/1.152, allocations: 0.9167 MB / 1.359 GB, free: 15.89 MB / 1.092 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001944/1.154, allocations: 0.6357 MB / 1.36 GB, free: 15.25 MB / 1.092 GB Notification: Performance of setup shared object (initialization): time 0.0001038/1.154, allocations: 305.1 kB / 1.36 GB, free: 14.95 MB / 1.092 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006756/1.161, allocations: 2.698 MB / 1.363 GB, free: 12.24 MB / 1.092 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007199/1.168, allocations: 3.567 MB / 1.366 GB, free: 8.297 MB / 1.092 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0135/1.182, allocations: 6.399 MB / 1.373 GB, free: 1.5 MB / 1.092 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.253e-05/1.182, allocations: 12 kB / 1.373 GB, free: 1.488 MB / 1.092 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.conv2.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.conv2.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 0.0296/1.211, allocations: 10.98 MB / 1.383 GB, free: 6.395 MB / 1.107 GB Notification: Performance of prepare postOptimizeDAE: time 5.254e-05/1.211, allocations: 16.56 kB / 1.383 GB, free: 6.379 MB / 1.107 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.068e-05/1.211, allocations: 32 kB / 1.383 GB, free: 6.348 MB / 1.107 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01988/1.231, allocations: 5.552 MB / 1.389 GB, free: 0.7773 MB / 1.107 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004408/1.236, allocations: 0.9945 MB / 1.39 GB, free: 15.78 MB / 1.123 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04512/1.281, allocations: 28.17 MB / 1.417 GB, free: 3.145 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00484/1.286, allocations: 0.5812 MB / 1.418 GB, free: 2.562 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007118/1.286, allocations: 148 kB / 1.418 GB, free: 2.418 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008637/1.295, allocations: 3.987 MB / 1.422 GB, free: 14.42 MB / 1.154 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006913/1.302, allocations: 3.536 MB / 1.425 GB, free: 10.5 MB / 1.154 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08708/1.389, allocations: 24.61 MB / 1.449 GB, free: 1.383 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.208e-05/1.389, allocations: 8 kB / 1.449 GB, free: 1.375 MB / 1.17 GB Warning: The linear system: 1 : transformer.conv1.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.conv1.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 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[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 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[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_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ] = [ -loadRL.load1.v[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] ; -transformer.conv2.V2[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_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_lambda0): time 0.02688/1.416, allocations: 10.53 MB / 1.46 GB, free: 6.699 MB / 1.186 GB Notification: Performance of prepare postOptimizeDAE: time 4.932e-05/1.416, allocations: 22.03 kB / 1.46 GB, free: 6.68 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.523e-05/1.416, allocations: 27.98 kB / 1.46 GB, free: 6.652 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01475/1.431, allocations: 4.326 MB / 1.464 GB, free: 2.309 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004833/1.436, allocations: 1.037 MB / 1.465 GB, free: 1.27 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03894/1.475, allocations: 27.14 MB / 1.492 GB, free: 5.391 MB / 1.217 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004642/1.48, allocations: 0.5537 MB / 1.492 GB, free: 4.836 MB / 1.217 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007012/1.48, allocations: 155.9 kB / 1.492 GB, free: 4.684 MB / 1.217 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.i1[2]) - line2.i3[2] - line2.i2[2] 0.0 = (-line2.i1[1]) - line2.i3[1] - line2.i2[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 0.001296/1.482, allocations: 391.4 kB / 1.493 GB, free: 4.293 MB / 1.217 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008019/1.482, allocations: 205.6 kB / 1.493 GB, free: 4.09 MB / 1.217 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 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[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 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[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_p[1] ; line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[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] ; -transformer.conv2.V2[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] ; -loadRL.load1.v[1] ] 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 wrapFunctionCalls (simulation): time 0.03051/1.513, allocations: 10.17 MB / 1.503 GB, free: 9.852 MB / 1.232 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001292/1.513, allocations: 19.88 kB / 1.503 GB, free: 9.832 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.171e-05/1.513, allocations: 4 kB / 1.503 GB, free: 9.828 MB / 1.232 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003152/1.516, allocations: 0.7249 MB / 1.503 GB, free: 9.082 MB / 1.232 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001148/1.518, allocations: 43.94 kB / 1.503 GB, free: 9.039 MB / 1.232 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006171/1.524, allocations: 0.5031 MB / 1.504 GB, free: 8.535 MB / 1.232 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001285/1.525, allocations: 293.4 kB / 1.504 GB, free: 8.25 MB / 1.232 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.04565/1.571, allocations: 9.422 MB / 1.513 GB, free: 14.8 MB / 1.248 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.03654/1.607, allocations: 8.895 MB / 1.522 GB, free: 5.824 MB / 1.248 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 0.00873/1.616, allocations: 2.669 MB / 1.525 GB, free: 3.152 MB / 1.248 GB Notification: Performance of sorting global known variables: time 0.001989/1.618, allocations: 0.9972 MB / 1.526 GB, free: 2.152 MB / 1.248 GB Notification: Performance of Backend: time 6.91e-07/1.618, allocations: 0 / 1.526 GB, free: 2.152 MB / 1.248 GB Notification: Performance of simCode: created initialization part: time 0.02848/1.647, allocations: 10.56 MB / 1.536 GB, free: 7.492 MB / 1.264 GB Notification: Performance of SimCode: time 0.01268/1.659, allocations: 7.282 MB / 1.543 GB, free: 168 kB / 1.264 GB Notification: Performance of Templates: time 0.7476/2.407, allocations: 97.59 MB / 1.638 GB, free: 273.9 MB / 1.279 GB make -j1 -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.makefile (rm -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & ./Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)