Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.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.BalancedStepUp.YD,fileNamePrefix="Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,fileNamePrefix="Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_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 0.008256/0.008256, allocations: 100.5 kB / 15.73 MB, free: 6.02 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002046/0.002047, allocations: 189.6 kB / 16.67 MB, free: 5.938 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.38/1.38, allocations: 222.9 MB / 240.4 MB, free: 15.07 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 2.453/2.453, allocations: 437 MB / 0.7105 GB, free: 4.34 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.001385/0.001385, allocations: 67.89 kB / 1.018 GB, free: 9.793 MB / 0.795 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8555/0.8569, allocations: 151.6 MB / 1.166 GB, free: 3.719 MB / 0.8887 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD): time 0.02001/0.877, allocations: 18.19 MB / 1.184 GB, free: 1.465 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.01094/0.888, allocations: 6.805 MB / 1.191 GB, free: 10.64 MB / 0.92 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001626/0.8896, allocations: 55.88 kB / 1.191 GB, free: 10.58 MB / 0.92 GB Notification: Performance of NFTyping.typeComponents: time 0.003861/0.8935, allocations: 1.46 MB / 1.192 GB, free: 9.117 MB / 0.92 GB Notification: Performance of NFTyping.typeBindings: time 0.00351/0.897, allocations: 1.447 MB / 1.194 GB, free: 7.664 MB / 0.92 GB Notification: Performance of NFTyping.typeClassSections: time 0.003145/0.9002, allocations: 1.266 MB / 1.195 GB, free: 6.398 MB / 0.92 GB Notification: Performance of NFFlatten.flatten: time 0.005836/0.9061, allocations: 5.445 MB / 1.2 GB, free: 0.9414 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008624/0.9147, allocations: 7.069 MB / 1.207 GB, free: 9.762 MB / 0.9356 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003486/0.9182, allocations: 2.369 MB / 1.209 GB, free: 7.387 MB / 0.9356 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004319/0.9225, allocations: 2.945 MB / 1.212 GB, free: 4.434 MB / 0.9356 GB Notification: Performance of NFPackage.collectConstants: time 0.001367/0.9239, allocations: 0.5117 MB / 1.213 GB, free: 3.922 MB / 0.9356 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002964/0.9269, allocations: 1.272 MB / 1.214 GB, free: 2.648 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.002982/0.9299, allocations: 2.242 MB / 1.216 GB, free: 412 kB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.003931/0.9338, allocations: 2.167 MB / 1.218 GB, free: 14.23 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.009288/0.9431, allocations: 7.756 MB / 1.226 GB, free: 6.449 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 5.009e-06/0.9432, allocations: 0 / 1.226 GB, free: 6.449 MB / 0.9512 GB Notification: Performance of FrontEnd: time 2.054e-06/0.9432, allocations: 4 kB / 1.226 GB, free: 6.445 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 0.0002176/0.9434, allocations: 0 / 1.226 GB, free: 6.445 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: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.01186/0.9553, allocations: 3.876 MB / 1.23 GB, free: 2.504 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 5.606e-05/0.9553, allocations: 8.031 kB / 1.23 GB, free: 2.496 MB / 0.9512 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002075/0.9574, allocations: 0.5384 MB / 1.23 GB, free: 1.949 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01396/0.9714, allocations: 2.429 MB / 1.233 GB, free: 15.52 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005487/0.9769, allocations: 2.191 MB / 1.235 GB, free: 13.28 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002326/0.9772, allocations: 263.2 kB / 1.235 GB, free: 13.02 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001221/0.9784, allocations: 344 kB / 1.235 GB, free: 12.68 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01332/0.9917, allocations: 7.126 MB / 1.242 GB, free: 5.453 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.239e-05/0.9918, allocations: 7.938 kB / 1.242 GB, free: 5.445 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000497/0.9923, allocations: 148 kB / 1.242 GB, free: 5.301 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000425/0.9928, allocations: 334 kB / 1.243 GB, free: 4.973 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01513/1.008, allocations: 7.035 MB / 1.25 GB, free: 13.93 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03507/1.043, allocations: 26.48 MB / 1.275 GB, free: 1.277 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008404/1.051, allocations: 4.979 MB / 1.28 GB, free: 12 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005932/1.057, allocations: 2.616 MB / 1.283 GB, free: 9.359 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002807/1.058, allocations: 131 kB / 1.283 GB, free: 9.211 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.675e-05/1.058, allocations: 60.5 kB / 1.283 GB, free: 9.145 MB / 1.014 GB Notification: Performance of pre-optimization done (n=208): time 3.757e-06/1.058, allocations: 0 / 1.283 GB, free: 9.145 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 0.1059/1.164, allocations: 31.13 MB / 1.313 GB, free: 9.957 MB / 1.045 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001213/1.164, allocations: 243.6 kB / 1.314 GB, free: 9.668 MB / 1.045 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002202/1.166, allocations: 1.427 MB / 1.315 GB, free: 8.23 MB / 1.045 GB Notification: Performance of collectPreVariables (initialization): time 0.0005227/1.167, allocations: 73.7 kB / 1.315 GB, free: 8.152 MB / 1.045 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009511/1.168, allocations: 1.538 MB / 1.317 GB, free: 6.598 MB / 1.045 GB Notification: Performance of collectInitialBindings (initialization): time 0.001126/1.169, allocations: 0.9606 MB / 1.318 GB, free: 5.629 MB / 1.045 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001426/1.17, allocations: 0.6359 MB / 1.318 GB, free: 4.984 MB / 1.045 GB Notification: Performance of setup shared object (initialization): time 8.267e-05/1.17, allocations: 309.1 kB / 1.318 GB, free: 4.68 MB / 1.045 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005943/1.176, allocations: 2.698 MB / 1.321 GB, free: 1.973 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006778/1.183, allocations: 3.571 MB / 1.325 GB, free: 14.02 MB / 1.061 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01311/1.196, allocations: 6.399 MB / 1.331 GB, free: 7.227 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.376e-05/1.196, allocations: 8 kB / 1.331 GB, free: 7.219 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 0.02892/1.225, allocations: 11 MB / 1.342 GB, free: 12.11 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 3.961e-05/1.225, allocations: 16 kB / 1.342 GB, free: 12.09 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.059e-05/1.225, allocations: 24 kB / 1.342 GB, free: 12.07 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02025/1.246, allocations: 5.564 MB / 1.347 GB, free: 6.492 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004625/1.25, allocations: 0.9984 MB / 1.348 GB, free: 5.492 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04382/1.294, allocations: 28.21 MB / 1.376 GB, free: 8.824 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005031/1.299, allocations: 0.581 MB / 1.376 GB, free: 8.242 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006927/1.3, allocations: 147.9 kB / 1.376 GB, free: 8.098 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008336/1.308, allocations: 3.988 MB / 1.38 GB, free: 4.102 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006794/1.315, allocations: 3.532 MB / 1.384 GB, free: 192 kB / 1.107 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09118/1.406, allocations: 24.63 MB / 1.408 GB, free: 7.039 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.535e-05/1.406, allocations: 8 kB / 1.408 GB, free: 7.031 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 0.02683/1.433, allocations: 10.54 MB / 1.418 GB, free: 12.34 MB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 3.711e-05/1.433, allocations: 16 kB / 1.418 GB, free: 12.33 MB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.99e-05/1.433, allocations: 28 kB / 1.418 GB, free: 12.3 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01577/1.449, allocations: 4.333 MB / 1.422 GB, free: 7.953 MB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004928/1.454, allocations: 1.037 MB / 1.423 GB, free: 6.914 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03608/1.49, allocations: 27.16 MB / 1.45 GB, free: 11.02 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00468/1.495, allocations: 0.5537 MB / 1.45 GB, free: 10.46 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005933/1.495, allocations: 148 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 0.001151/1.497, allocations: 392.7 kB / 1.451 GB, free: 9.93 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007406/1.497, allocations: 210.7 kB / 1.451 GB, free: 9.723 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 0.0272/1.524, allocations: 10.17 MB / 1.461 GB, free: 15.48 MB / 1.201 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.673e-05/1.525, allocations: 28 kB / 1.461 GB, free: 15.45 MB / 1.201 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.975e-05/1.525, allocations: 15.94 kB / 1.461 GB, free: 15.43 MB / 1.201 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.051e-05/1.525, allocations: 15.95 kB / 1.461 GB, free: 15.42 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 0.03752/1.562, allocations: 16.31 MB / 1.477 GB, free: 14.86 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.798e-05/1.562, allocations: 8 kB / 1.477 GB, free: 14.86 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003577/1.566, allocations: 0.7338 MB / 1.478 GB, free: 14.12 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01936/1.585, allocations: 5.181 MB / 1.483 GB, free: 8.926 MB / 1.217 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006746/1.586, allocations: 75.95 kB / 1.483 GB, free: 8.852 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04092/1.627, allocations: 27.22 MB / 1.509 GB, free: 13.12 MB / 1.248 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.124e-05/1.627, allocations: 12.03 kB / 1.509 GB, free: 13.11 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 0.02712/1.654, allocations: 10.15 MB / 1.519 GB, free: 2.727 MB / 1.248 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002136/1.656, allocations: 0.7299 MB / 1.52 GB, free: 1.977 MB / 1.248 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007958/1.657, allocations: 56 kB / 1.52 GB, free: 1.922 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004094/1.661, allocations: 0.5031 MB / 1.521 GB, free: 1.418 MB / 1.248 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000936/1.662, allocations: 238.3 kB / 1.521 GB, free: 1.18 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003786/1.662, allocations: 91.95 kB / 1.521 GB, free: 1.09 MB / 1.248 GB Notification: Performance of sorting global known variables: time 0.001666/1.664, allocations: 0.9723 MB / 1.522 GB, free: 116 kB / 1.248 GB Notification: Performance of sort global known variables: time 3.7e-07/1.664, allocations: 0 / 1.522 GB, free: 116 kB / 1.248 GB Notification: Performance of remove unused functions: time 0.006996/1.671, allocations: 1.848 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 0.02753/1.699, allocations: 10.8 MB / 1.534 GB, free: 3.207 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.0315/1.73, allocations: 12.48 MB / 1.546 GB, free: 6.617 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 1.119e-05/1.73, allocations: 3.938 kB / 1.546 GB, free: 6.613 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.0113/1.742, allocations: 4.406 MB / 1.551 GB, free: 2.164 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002837/1.744, allocations: 280.4 kB / 1.551 GB, free: 1.902 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. Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.7162/2.461, allocations: 42.25 MB / 1.592 GB, free: 349.1 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002869/2.464, allocations: 2.832 MB / 1.595 GB, free: 346.2 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.003924/2.468, allocations: 1.655 MB / 1.597 GB, free: 344.7 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001679/2.469, allocations: 1.206 MB / 1.598 GB, free: 343.5 MB / 1.279 GB Notification: Performance of SimCode: time 9.12e-07/2.469, allocations: 0.7656 kB / 1.598 GB, free: 343.5 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1345/2.604, allocations: 102.6 MB / 1.698 GB, free: 241.4 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.95/18.55, allocations: 15.83 kB / 1.698 GB, free: 241.4 MB / 1.279 GB (rm -f Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; mkfifo Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe >> ../files/Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.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_BalancedStepUp_YD.fmu > Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe 2>&1)