Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.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 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-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.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001289/0.001289, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00133/0.00133, allocations: 193.9 kB / 16.14 MB, free: 6.703 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.349/1.349, allocations: 222.9 MB / 239.8 MB, free: 4.613 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.877/2.877, allocations: 472.6 MB / 0.7447 GB, free: 4.992 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001715/0.001715, allocations: 64.98 kB / 0.9114 GB, free: 33.57 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3529/0.3547, allocations: 159.9 MB / 1.068 GB, free: 10.89 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02077/0.3755, allocations: 18.15 MB / 1.085 GB, free: 8.676 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.01112/0.3867, allocations: 6.874 MB / 1.092 GB, free: 1.785 MB / 0.8419 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001949/0.3887, allocations: 43.88 kB / 1.092 GB, free: 1.742 MB / 0.8419 GB Notification: Performance of NFTyping.typeComponents: time 0.003912/0.3926, allocations: 1.364 MB / 1.093 GB, free: 384 kB / 0.8419 GB Notification: Performance of NFTyping.typeBindings: time 0.004004/0.3967, allocations: 1.351 MB / 1.095 GB, free: 15.02 MB / 0.8575 GB Notification: Performance of NFTyping.typeClassSections: time 0.003721/0.4004, allocations: 1.154 MB / 1.096 GB, free: 13.86 MB / 0.8575 GB Notification: Performance of NFFlatten.flatten: time 0.008752/0.4092, allocations: 8.529 MB / 1.104 GB, free: 5.316 MB / 0.8575 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01181/0.421, allocations: 7.923 MB / 1.112 GB, free: 13.3 MB / 0.8731 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003764/0.4248, allocations: 1.986 MB / 1.114 GB, free: 11.3 MB / 0.8731 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005771/0.4306, allocations: 3.07 MB / 1.117 GB, free: 8.227 MB / 0.8731 GB Notification: Performance of NFPackage.collectConstants: time 0.001602/0.4323, allocations: 368 kB / 1.117 GB, free: 7.867 MB / 0.8731 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003962/0.4363, allocations: 1.295 MB / 1.118 GB, free: 6.57 MB / 0.8731 GB Notification: Performance of NFScalarize.scalarize: time 0.003731/0.44, allocations: 2.093 MB / 1.12 GB, free: 4.473 MB / 0.8731 GB Notification: Performance of NFVerifyModel.verify: time 0.004562/0.4446, allocations: 2.026 MB / 1.122 GB, free: 2.438 MB / 0.8731 GB Notification: Performance of NFConvertDAE.convert: time 0.009104/0.4537, allocations: 7.666 MB / 1.13 GB, free: 10.75 MB / 0.8887 GB Notification: Performance of FrontEnd - DAE generated: time 5.741e-06/0.4537, allocations: 8 kB / 1.13 GB, free: 10.74 MB / 0.8887 GB Notification: Performance of FrontEnd: time 1.202e-06/0.4538, allocations: 0 / 1.13 GB, free: 10.74 MB / 0.8887 GB Notification: Performance of Transformations before backend: time 0.0002084/0.454, allocations: 0 / 1.13 GB, free: 10.74 MB / 0.8887 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 0.008935/0.4629, allocations: 3.828 MB / 1.134 GB, free: 6.855 MB / 0.8887 GB Notification: Performance of prepare preOptimizeDAE: time 4.015e-05/0.463, allocations: 8.031 kB / 1.134 GB, free: 6.848 MB / 0.8887 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01313/0.4761, allocations: 2.415 MB / 1.136 GB, free: 4.426 MB / 0.8887 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004654/0.4808, allocations: 2.167 MB / 1.138 GB, free: 2.215 MB / 0.8887 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001925/0.481, allocations: 271.5 kB / 1.138 GB, free: 1.949 MB / 0.8887 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008713/0.4819, allocations: 351.9 kB / 1.139 GB, free: 1.605 MB / 0.8887 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01716/0.4991, allocations: 7.155 MB / 1.146 GB, free: 10.35 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.2e-05/0.4992, allocations: 11.98 kB / 1.146 GB, free: 10.34 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004421/0.4996, allocations: 152 kB / 1.146 GB, free: 10.19 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000464/0.5001, allocations: 338.1 kB / 1.146 GB, free: 9.855 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01527/0.5154, allocations: 7.044 MB / 1.153 GB, free: 2.801 MB / 0.9044 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0348/0.5502, allocations: 26.74 MB / 1.179 GB, free: 5.867 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008144/0.5584, allocations: 4.98 MB / 1.184 GB, free: 0.5781 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005674/0.5641, allocations: 2.608 MB / 1.187 GB, free: 13.95 MB / 0.9512 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002555/0.5644, allocations: 131 kB / 1.187 GB, free: 13.8 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.256e-05/0.5644, allocations: 60.56 kB / 1.187 GB, free: 13.73 MB / 0.9512 GB Notification: Performance of pre-optimization done (n=208): time 5.541e-06/0.5645, allocations: 0 / 1.187 GB, free: 13.73 MB / 0.9512 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=271): time 0.109/0.6734, allocations: 30.95 MB / 1.217 GB, free: 14.7 MB / 0.9825 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001426/0.6736, allocations: 239.6 kB / 1.217 GB, free: 14.42 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002832/0.6764, allocations: 1.469 MB / 1.219 GB, free: 12.95 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 0.0006825/0.6772, allocations: 69.7 kB / 1.219 GB, free: 12.87 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.001296/0.6785, allocations: 1.501 MB / 1.22 GB, free: 11.35 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 0.001614/0.6801, allocations: 0.9204 MB / 1.221 GB, free: 10.41 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00226/0.6824, allocations: 0.6357 MB / 1.222 GB, free: 9.77 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001156/0.6825, allocations: 305.1 kB / 1.222 GB, free: 9.469 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006472/0.689, allocations: 2.686 MB / 1.225 GB, free: 6.773 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007637/0.6966, allocations: 3.571 MB / 1.228 GB, free: 2.824 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01383/0.7105, allocations: 6.399 MB / 1.234 GB, free: 12.03 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.172e-05/0.7106, allocations: 4 kB / 1.234 GB, free: 12.02 MB / 0.9981 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization): time 0.03046/0.7411, allocations: 11.02 MB / 1.245 GB, free: 0.8906 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 5.47e-05/0.7411, allocations: 16 kB / 1.245 GB, free: 0.875 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.412e-05/0.7412, allocations: 24 kB / 1.245 GB, free: 0.8516 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6929/1.434, allocations: 5.538 MB / 1.251 GB, free: 164.6 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004981/1.439, allocations: 0.9921 MB / 1.252 GB, free: 164.6 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04681/1.486, allocations: 25.78 MB / 1.277 GB, free: 153.8 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004537/1.491, allocations: 0.5805 MB / 1.277 GB, free: 153.7 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005038/1.491, allocations: 154.2 kB / 1.277 GB, free: 153.7 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.007975/1.499, allocations: 3.99 MB / 1.281 GB, free: 152.4 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006392/1.506, allocations: 3.529 MB / 1.285 GB, free: 150.5 MB / 0.9981 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08515/1.591, allocations: 24.61 MB / 1.309 GB, free: 139.7 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.72e-05/1.591, allocations: 11.2 kB / 1.309 GB, free: 139.6 MB / 0.9981 GB Warning: The linear system: 1 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] 3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2] 4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v1_p[2] ; line2.v3_p[2] ; line2.v3_n[2] ] = [ -transformer.conv3.V2[2] ; line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ; -loadRL.load3.v[2] ; line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1] ] might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02305/1.614, allocations: 10.53 MB / 1.319 GB, free: 129.1 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 3.135e-05/1.614, allocations: 16 kB / 1.319 GB, free: 129.1 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.714e-05/1.614, allocations: 25 kB / 1.319 GB, free: 129 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01428/1.628, allocations: 4.316 MB / 1.323 GB, free: 124.7 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004316/1.633, allocations: 1.037 MB / 1.324 GB, free: 123.7 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02762/1.66, allocations: 24.96 MB / 1.349 GB, free: 98.1 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004814/1.665, allocations: 0.5576 MB / 1.349 GB, free: 97.54 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007581/1.666, allocations: 148 kB / 1.349 GB, free: 97.39 MB / 0.9981 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001463/1.667, allocations: 398.1 kB / 1.35 GB, free: 97.02 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006991/1.668, allocations: 205.6 kB / 1.35 GB, free: 96.82 MB / 0.9981 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02427/1.692, allocations: 10.17 MB / 1.36 GB, free: 86.58 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.976e-05/1.692, allocations: 28 kB / 1.36 GB, free: 86.55 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.255e-05/1.692, allocations: 12 kB / 1.36 GB, free: 86.54 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.245e-05/1.692, allocations: 15.78 kB / 1.36 GB, free: 86.53 MB / 0.9981 GB Warning: The linear system: 1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 2 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 3 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 4 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ] = [ -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v2_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03255/1.725, allocations: 16.31 MB / 1.376 GB, free: 70.04 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.938e-05/1.725, allocations: 9 kB / 1.376 GB, free: 70.03 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003372/1.729, allocations: 0.7371 MB / 1.377 GB, free: 69.29 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01751/1.746, allocations: 5.169 MB / 1.382 GB, free: 64.11 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006885/1.747, allocations: 75.95 kB / 1.382 GB, free: 64.03 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03198/1.779, allocations: 24.87 MB / 1.406 GB, free: 38.7 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.334e-06/1.779, allocations: 15.97 kB / 1.406 GB, free: 38.68 MB / 0.9981 GB Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02294/1.802, allocations: 10.1 MB / 1.416 GB, free: 28.34 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001757/1.804, allocations: 0.7322 MB / 1.417 GB, free: 27.59 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007614/1.804, allocations: 52 kB / 1.417 GB, free: 27.54 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003595/1.808, allocations: 0.5109 MB / 1.417 GB, free: 27.03 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009231/1.809, allocations: 222.4 kB / 1.417 GB, free: 26.81 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003498/1.809, allocations: 95.95 kB / 1.418 GB, free: 26.71 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.001646/1.811, allocations: 0.9972 MB / 1.419 GB, free: 25.71 MB / 0.9981 GB Notification: Performance of sort global known variables: time 1.723e-06/1.811, allocations: 2.188 kB / 1.419 GB, free: 25.71 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.007575/1.818, allocations: 1.855 MB / 1.42 GB, free: 23.86 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (165): * Single equations (assignments): 162 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(10,44,70.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005195/1.819, allocations: 181 kB / 1.421 GB, free: 23.68 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.02552/1.845, allocations: 12.39 MB / 1.433 GB, free: 11.18 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 1.118e-05/1.845, allocations: 0 / 1.433 GB, free: 11.18 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.009471/1.854, allocations: 4.414 MB / 1.437 GB, free: 6.734 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002735/1.857, allocations: 276 kB / 1.437 GB, free: 6.465 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02452/1.881, allocations: 11.13 MB / 1.448 GB, free: 11.22 MB / 1.014 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00465/1.886, allocations: 2.853 MB / 1.451 GB, free: 8.332 MB / 1.014 GB Notification: Performance of simCode: alias equations: time 0.00607/1.892, allocations: 1.661 MB / 1.452 GB, free: 6.668 MB / 1.014 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009334/1.893, allocations: 171.3 kB / 1.453 GB, free: 6.5 MB / 1.014 GB Notification: Performance of SimCode: time 1.072e-06/1.893, allocations: 0 / 1.453 GB, free: 6.5 MB / 1.014 GB Notification: Performance of Templates: time 0.1163/2.009, allocations: 75.5 MB / 1.526 GB, free: 11.17 MB / 1.092 GB make -j1 -f Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.makefile (rm -f Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & ./Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_1.6_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)