Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_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 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/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: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.006192/0.006192, allocations: 100.4 kB / 15.73 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001488/0.001488, allocations: 195.4 kB / 16.67 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.35/1.35, allocations: 222.9 MB / 240.4 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.485/2.485, allocations: 437 MB / 0.7105 GB, free: 4.359 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.001463/0.001463, allocations: 63.91 kB / 1.018 GB, free: 9.797 MB / 0.795 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8334/0.8348, allocations: 151.6 MB / 1.166 GB, free: 3.773 MB / 0.8887 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.02294/0.8578, allocations: 18.27 MB / 1.184 GB, free: 1.441 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.01311/0.871, allocations: 6.863 MB / 1.191 GB, free: 10.55 MB / 0.92 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002253/0.8733, allocations: 59.88 kB / 1.191 GB, free: 10.5 MB / 0.92 GB Notification: Performance of NFTyping.typeComponents: time 0.004788/0.8782, allocations: 1.468 MB / 1.192 GB, free: 9.023 MB / 0.92 GB Notification: Performance of NFTyping.typeBindings: time 0.004573/0.8828, allocations: 1.451 MB / 1.194 GB, free: 7.566 MB / 0.92 GB Notification: Performance of NFTyping.typeClassSections: time 0.004288/0.8871, allocations: 1.264 MB / 1.195 GB, free: 6.301 MB / 0.92 GB Notification: Performance of NFFlatten.flatten: time 0.00792/0.895, allocations: 5.472 MB / 1.2 GB, free: 0.8164 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01098/0.906, allocations: 7.134 MB / 1.207 GB, free: 9.574 MB / 0.9356 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00434/0.9104, allocations: 2.357 MB / 1.21 GB, free: 7.211 MB / 0.9356 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00529/0.9157, allocations: 2.976 MB / 1.212 GB, free: 4.227 MB / 0.9356 GB Notification: Performance of NFPackage.collectConstants: time 0.002009/0.9178, allocations: 0.5117 MB / 1.213 GB, free: 3.715 MB / 0.9356 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004039/0.9218, allocations: 1.272 MB / 1.214 GB, free: 2.441 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.003792/0.9257, allocations: 2.246 MB / 1.216 GB, free: 196 kB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.004976/0.9307, allocations: 2.187 MB / 1.219 GB, free: 13.99 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.01115/0.9418, allocations: 7.788 MB / 1.226 GB, free: 6.188 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 1.928e-05/0.9419, allocations: 0 / 1.226 GB, free: 6.188 MB / 0.9512 GB Notification: Performance of FrontEnd: time 2.485e-06/0.9419, allocations: 0 / 1.226 GB, free: 6.188 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 0.0003013/0.9422, allocations: 4 kB / 1.226 GB, free: 6.184 MB / 0.9512 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 0.01315/0.9554, allocations: 3.815 MB / 1.23 GB, free: 2.309 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 6.076e-05/0.9555, allocations: 8.922 kB / 1.23 GB, free: 2.301 MB / 0.9512 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002072/0.9575, allocations: 0.5425 MB / 1.23 GB, free: 1.75 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01459/0.9721, allocations: 2.423 MB / 1.233 GB, free: 15.32 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006232/0.9784, allocations: 2.175 MB / 1.235 GB, free: 13.1 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002999/0.9788, allocations: 279.2 kB / 1.235 GB, free: 12.82 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001749/0.9805, allocations: 351.9 kB / 1.235 GB, free: 12.48 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02003/1.001, allocations: 7.159 MB / 1.242 GB, free: 5.219 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001551/1.001, allocations: 3.938 kB / 1.242 GB, free: 5.215 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001427/1.002, allocations: 151.9 kB / 1.243 GB, free: 5.066 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005784/1.003, allocations: 334.1 kB / 1.243 GB, free: 4.738 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01916/1.022, allocations: 7.048 MB / 1.25 GB, free: 13.68 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04332/1.065, allocations: 26.5 MB / 1.276 GB, free: 1.008 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009507/1.075, allocations: 5.003 MB / 1.281 GB, free: 11.71 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006402/1.081, allocations: 2.604 MB / 1.283 GB, free: 9.078 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003238/1.082, allocations: 131 kB / 1.283 GB, free: 8.93 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.762e-05/1.082, allocations: 64.5 kB / 1.283 GB, free: 8.859 MB / 1.014 GB Notification: Performance of pre-optimization done (n=208): time 4.568e-06/1.082, allocations: 0 / 1.283 GB, free: 8.859 MB / 1.014 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 0.1139/1.196, allocations: 30.96 MB / 1.314 GB, free: 9.816 MB / 1.045 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000165/1.196, allocations: 251.5 kB / 1.314 GB, free: 9.52 MB / 1.045 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002687/1.199, allocations: 1.461 MB / 1.315 GB, free: 8.051 MB / 1.045 GB Notification: Performance of collectPreVariables (initialization): time 0.0005662/1.199, allocations: 73.7 kB / 1.315 GB, free: 7.973 MB / 1.045 GB Notification: Performance of collectInitialEqns (initialization): time 0.001115/1.2, allocations: 1.497 MB / 1.317 GB, free: 6.453 MB / 1.045 GB Notification: Performance of collectInitialBindings (initialization): time 0.001224/1.202, allocations: 0.9165 MB / 1.318 GB, free: 5.523 MB / 1.045 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001679/1.203, allocations: 0.6318 MB / 1.318 GB, free: 4.883 MB / 1.045 GB Notification: Performance of setup shared object (initialization): time 9.672e-05/1.203, allocations: 317.1 kB / 1.319 GB, free: 4.57 MB / 1.045 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006411/1.21, allocations: 2.686 MB / 1.321 GB, free: 1.875 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007032/1.217, allocations: 3.564 MB / 1.325 GB, free: 13.93 MB / 1.061 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01357/1.23, allocations: 6.399 MB / 1.331 GB, free: 7.133 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.238e-05/1.23, allocations: 8 kB / 1.331 GB, free: 7.125 MB / 1.061 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 0.03071/1.261, allocations: 10.99 MB / 1.342 GB, free: 12.03 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 4.989e-05/1.261, allocations: 19.94 kB / 1.342 GB, free: 12.01 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.989e-05/1.261, allocations: 28 kB / 1.342 GB, free: 11.98 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0209/1.282, allocations: 5.563 MB / 1.347 GB, free: 6.406 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004687/1.287, allocations: 0.9906 MB / 1.348 GB, free: 5.414 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04609/1.333, allocations: 28.18 MB / 1.376 GB, free: 8.785 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004984/1.338, allocations: 0.5809 MB / 1.376 GB, free: 8.203 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007342/1.339, allocations: 155.9 kB / 1.376 GB, free: 8.051 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009176/1.348, allocations: 3.984 MB / 1.38 GB, free: 4.059 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007175/1.355, allocations: 3.532 MB / 1.384 GB, free: 148 kB / 1.107 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09387/1.449, allocations: 24.61 MB / 1.408 GB, free: 7.02 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.28e-05/1.449, allocations: 12 kB / 1.408 GB, free: 7.008 MB / 1.139 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 0.02866/1.478, allocations: 10.53 MB / 1.418 GB, free: 12.34 MB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 5.391e-05/1.478, allocations: 19.94 kB / 1.418 GB, free: 12.32 MB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.272e-05/1.478, allocations: 24 kB / 1.418 GB, free: 12.3 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01619/1.494, allocations: 4.329 MB / 1.422 GB, free: 7.949 MB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005156/1.499, allocations: 1.034 MB / 1.423 GB, free: 6.914 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03925/1.539, allocations: 27.15 MB / 1.45 GB, free: 11.03 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005011/1.544, allocations: 0.5537 MB / 1.45 GB, free: 10.47 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007538/1.545, allocations: 151.9 kB / 1.45 GB, free: 10.32 MB / 1.186 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 0.001524/1.546, allocations: 404.4 kB / 1.451 GB, free: 9.926 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009604/1.547, allocations: 201.6 kB / 1.451 GB, free: 9.727 MB / 1.186 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 0.02891/1.576, allocations: 10.17 MB / 1.461 GB, free: 15.48 MB / 1.201 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.65e-05/1.576, allocations: 28 kB / 1.461 GB, free: 15.45 MB / 1.201 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.164e-05/1.576, allocations: 12 kB / 1.461 GB, free: 15.44 MB / 1.201 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.595e-05/1.576, allocations: 11.95 kB / 1.461 GB, free: 15.43 MB / 1.201 GB Warning: The linear system: 1 : 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] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : 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] 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.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ; line2.v2_p[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] ; 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] ] 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 0.04084/1.617, allocations: 16.31 MB / 1.477 GB, free: 14.86 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.553e-05/1.617, allocations: 8 kB / 1.477 GB, free: 14.86 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003689/1.621, allocations: 0.7378 MB / 1.478 GB, free: 14.12 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01958/1.64, allocations: 5.177 MB / 1.483 GB, free: 8.926 MB / 1.217 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007611/1.641, allocations: 71.95 kB / 1.483 GB, free: 8.855 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04422/1.685, allocations: 27.21 MB / 1.509 GB, free: 13.14 MB / 1.248 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.188e-05/1.686, allocations: 8 kB / 1.509 GB, free: 13.14 MB / 1.248 GB Warning: The linear system: 1 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[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] ; 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] ] might be structurally or numerically singular for variable line2.v2_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02803/1.714, allocations: 10.14 MB / 1.519 GB, free: 2.754 MB / 1.248 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002553/1.716, allocations: 0.7249 MB / 1.52 GB, free: 2.008 MB / 1.248 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008926/1.717, allocations: 51.91 kB / 1.52 GB, free: 1.957 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004194/1.721, allocations: 0.5148 MB / 1.521 GB, free: 1.441 MB / 1.248 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00111/1.722, allocations: 226.3 kB / 1.521 GB, free: 1.215 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004699/1.723, allocations: 91.95 kB / 1.521 GB, free: 1.125 MB / 1.248 GB Notification: Performance of sorting global known variables: time 0.001933/1.725, allocations: 1.001 MB / 1.522 GB, free: 124 kB / 1.248 GB Notification: Performance of sort global known variables: time 2.11e-07/1.725, allocations: 3.938 kB / 1.522 GB, free: 120 kB / 1.248 GB Notification: Performance of remove unused functions: time 0.008055/1.733, allocations: 1.852 MB / 1.524 GB, free: 14.26 MB / 1.264 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)} Warning: The linear system: 1 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[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] ; 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] ] might be structurally or numerically singular for variable line2.v2_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of Backend phase and start with SimCode phase: time 0.02868/1.762, allocations: 10.79 MB / 1.534 GB, free: 3.207 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.03274/1.794, allocations: 12.47 MB / 1.546 GB, free: 6.625 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 1.258e-05/1.794, allocations: 0 / 1.546 GB, free: 6.625 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.01166/1.806, allocations: 4.395 MB / 1.551 GB, free: 2.188 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003302/1.809, allocations: 283.5 kB / 1.551 GB, free: 1.918 MB / 1.279 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. 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 simCode: created linear, non-linear and system jacobian parts: time 0.7782/2.588, allocations: 42.36 MB / 1.592 GB, free: 349.5 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003502/2.591, allocations: 2.846 MB / 1.595 GB, free: 346.6 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.004202/2.595, allocations: 1.655 MB / 1.597 GB, free: 345.1 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001677/2.597, allocations: 1.226 MB / 1.598 GB, free: 343.9 MB / 1.279 GB Notification: Performance of SimCode: time 8.62e-07/2.597, allocations: 0 / 1.598 GB, free: 343.9 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.131/2.728, allocations: 103.4 MB / 1.699 GB, free: 240.9 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.73/18.45, allocations: 11.25 kB / 1.699 GB, free: 240.9 MB / 1.279 GB (rm -f Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD.fmu > Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)