Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.64/1.64, allocations: 292.3 MB / 308.1 MB, free: 4.27 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001212/0.001212, allocations: 192.5 kB / 376.9 MB, free: 1.805 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.711/1.711, allocations: 205 MB / 0.6353 GB, free: 9.809 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0009973/0.000997, allocations: 102.7 kB / 0.748 GB, free: 61.12 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0009969/0.0009969, allocations: 55.92 kB / 0.8704 GB, free: 13.05 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2733/0.2743, allocations: 114.5 MB / 0.9823 GB, free: 10.35 MB / 0.7136 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD): time 0.02311/0.2975, allocations: 18.04 MB / 0.9999 GB, free: 8.234 MB / 0.7292 GB Notification: Performance of NFInst.instExpressions: time 0.01234/0.3099, allocations: 6.896 MB / 1.007 GB, free: 1.32 MB / 0.7292 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001822/0.3118, allocations: 47.88 kB / 1.007 GB, free: 1.273 MB / 0.7292 GB Notification: Performance of NFTyping.typeComponents: time 0.003377/0.3152, allocations: 1.331 MB / 1.008 GB, free: 15.94 MB / 0.7448 GB Notification: Performance of NFTyping.typeBindings: time 0.00361/0.3188, allocations: 1.328 MB / 1.009 GB, free: 14.61 MB / 0.7448 GB Notification: Performance of NFTyping.typeClassSections: time 0.003212/0.322, allocations: 1.166 MB / 1.01 GB, free: 13.44 MB / 0.7448 GB Notification: Performance of NFFlatten.flatten: time 0.008512/0.3306, allocations: 8.53 MB / 1.019 GB, free: 4.891 MB / 0.7448 GB Notification: Performance of NFFlatten.resolveConnections: time 0.527/0.8575, allocations: 7.893 MB / 1.026 GB, free: 68.06 MB / 0.7448 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003806/0.8614, allocations: 1.989 MB / 1.028 GB, free: 68.01 MB / 0.7448 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005569/0.867, allocations: 3.053 MB / 1.031 GB, free: 67.77 MB / 0.7448 GB Notification: Performance of NFPackage.collectConstants: time 0.002625/0.8696, allocations: 369.6 kB / 1.032 GB, free: 67.76 MB / 0.7448 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005036/0.8747, allocations: 1.286 MB / 1.033 GB, free: 67.76 MB / 0.7448 GB Notification: Performance of NFScalarize.scalarize: time 0.004874/0.8796, allocations: 2.079 MB / 1.035 GB, free: 67.64 MB / 0.7448 GB Notification: Performance of NFVerifyModel.verify: time 0.005638/0.8853, allocations: 2.004 MB / 1.037 GB, free: 67.12 MB / 0.7448 GB Notification: Performance of NFConvertDAE.convert: time 0.01287/0.8982, allocations: 7.616 MB / 1.044 GB, free: 66.52 MB / 0.7448 GB Notification: Performance of FrontEnd - DAE generated: time 7.644e-06/0.8982, allocations: 1.281 kB / 1.044 GB, free: 66.52 MB / 0.7448 GB Notification: Performance of FrontEnd: time 2.965e-06/0.8982, allocations: 0 / 1.044 GB, free: 66.52 MB / 0.7448 GB Notification: Performance of Transformations before backend: time 0.0003461/0.8986, allocations: 1.688 kB / 1.044 GB, free: 66.52 MB / 0.7448 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.0181/0.9167, allocations: 3.784 MB / 1.048 GB, free: 65.11 MB / 0.7448 GB Notification: Performance of prepare preOptimizeDAE: time 5.538e-05/0.9168, allocations: 13.69 kB / 1.048 GB, free: 65.1 MB / 0.7448 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01403/0.9308, allocations: 2.336 MB / 1.05 GB, free: 64.91 MB / 0.7448 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007557/0.9384, allocations: 2.152 MB / 1.052 GB, free: 64.46 MB / 0.7448 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002803/0.9387, allocations: 264.8 kB / 1.053 GB, free: 64.46 MB / 0.7448 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002582/0.9413, allocations: 344.9 kB / 1.053 GB, free: 64.46 MB / 0.7448 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0211/0.9624, allocations: 7.1 MB / 1.06 GB, free: 64.09 MB / 0.7448 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.899e-05/0.9626, allocations: 3 kB / 1.06 GB, free: 64.09 MB / 0.7448 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005296/0.9631, allocations: 148.8 kB / 1.06 GB, free: 64.09 MB / 0.7448 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000502/0.9636, allocations: 330.8 kB / 1.06 GB, free: 64.08 MB / 0.7448 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01753/0.9811, allocations: 6.988 MB / 1.067 GB, free: 63.14 MB / 0.7448 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03832/1.02, allocations: 26.54 MB / 1.093 GB, free: 44.2 MB / 0.7448 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007585/1.027, allocations: 4.995 MB / 1.098 GB, free: 41.44 MB / 0.7448 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005458/1.033, allocations: 2.606 MB / 1.101 GB, free: 40.67 MB / 0.7448 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002405/1.033, allocations: 130.1 kB / 1.101 GB, free: 40.57 MB / 0.7448 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.778e-05/1.033, allocations: 58.55 kB / 1.101 GB, free: 40.52 MB / 0.7448 GB Notification: Performance of pre-optimization done (n=208): time 5.039e-06/1.033, allocations: 7.188 kB / 1.101 GB, free: 40.51 MB / 0.7448 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=271): time 0.1068/1.14, allocations: 30.88 MB / 1.131 GB, free: 33.37 MB / 0.7448 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001155/1.14, allocations: 239.7 kB / 1.131 GB, free: 33.12 MB / 0.7448 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002871/1.143, allocations: 1.407 MB / 1.133 GB, free: 32.59 MB / 0.7448 GB Notification: Performance of collectPreVariables (initialization): time 0.0008561/1.144, allocations: 74.36 kB / 1.133 GB, free: 32.52 MB / 0.7448 GB Notification: Performance of collectInitialEqns (initialization): time 0.001095/1.145, allocations: 1.481 MB / 1.134 GB, free: 31.39 MB / 0.7448 GB Notification: Performance of collectInitialBindings (initialization): time 0.001727/1.147, allocations: 0.921 MB / 1.135 GB, free: 30.68 MB / 0.7448 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001557/1.148, allocations: 0.63 MB / 1.136 GB, free: 30.4 MB / 0.7448 GB Notification: Performance of setup shared object (initialization): time 6.368e-05/1.148, allocations: 301.1 kB / 1.136 GB, free: 30.11 MB / 0.7448 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006785/1.155, allocations: 2.669 MB / 1.138 GB, free: 29.28 MB / 0.7448 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007748/1.163, allocations: 3.551 MB / 1.142 GB, free: 27.39 MB / 0.7448 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01441/1.177, allocations: 6.386 MB / 1.148 GB, free: 24.44 MB / 0.7448 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.507e-05/1.177, allocations: 8.562 kB / 1.148 GB, free: 24.44 MB / 0.7448 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization): time 0.03072/1.208, allocations: 10.99 MB / 1.159 GB, free: 19.84 MB / 0.7448 GB Notification: Performance of prepare postOptimizeDAE: time 5.848e-05/1.208, allocations: 18.06 kB / 1.159 GB, free: 19.84 MB / 0.7448 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.668e-05/1.208, allocations: 24.66 kB / 1.159 GB, free: 19.84 MB / 0.7448 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01926/1.227, allocations: 5.464 MB / 1.164 GB, free: 17.27 MB / 0.7448 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004399/1.232, allocations: 0.9849 MB / 1.165 GB, free: 17 MB / 0.7448 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03628/1.268, allocations: 25.76 MB / 1.19 GB, free: 8.148 MB / 0.7605 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005209/1.273, allocations: 0.5497 MB / 1.191 GB, free: 7.598 MB / 0.7605 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007804/1.274, allocations: 155.9 kB / 1.191 GB, free: 7.445 MB / 0.7605 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009563/1.284, allocations: 3.968 MB / 1.195 GB, free: 3.473 MB / 0.7605 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00721/1.291, allocations: 3.504 MB / 1.198 GB, free: 15.6 MB / 0.7761 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09092/1.382, allocations: 24.56 MB / 1.222 GB, free: 6.641 MB / 0.7917 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.176e-05/1.382, allocations: 11.2 kB / 1.222 GB, free: 6.633 MB / 0.7917 GB Warning: The linear system: 1 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] 3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2] 4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v1_p[2] ; line2.v3_p[2] ; line2.v3_n[2] ] = [ -transformer.conv3.V2[2] ; line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ; -loadRL.load3.v[2] ; line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1] ] might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02823/1.41, allocations: 10.49 MB / 1.233 GB, free: 12.21 MB / 0.8073 GB Notification: Performance of prepare postOptimizeDAE: time 3.812e-05/1.41, allocations: 17.41 kB / 1.233 GB, free: 12.2 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.673e-05/1.41, allocations: 29.12 kB / 1.233 GB, free: 12.17 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01522/1.426, allocations: 4.242 MB / 1.237 GB, free: 7.918 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005456/1.431, allocations: 1.037 MB / 1.238 GB, free: 6.922 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03417/1.465, allocations: 24.92 MB / 1.262 GB, free: 13.39 MB / 0.8386 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005012/1.47, allocations: 0.5341 MB / 1.263 GB, free: 12.86 MB / 0.8386 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000498/1.471, allocations: 159.9 kB / 1.263 GB, free: 12.7 MB / 0.8386 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001118/1.472, allocations: 396.1 kB / 1.263 GB, free: 12.36 MB / 0.8386 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006707/1.473, allocations: 201.6 kB / 1.263 GB, free: 12.16 MB / 0.8386 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02781/1.501, allocations: 10.16 MB / 1.273 GB, free: 2.004 MB / 0.8386 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.713e-05/1.501, allocations: 28 kB / 1.273 GB, free: 1.977 MB / 0.8386 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.897e-05/1.501, allocations: 12 kB / 1.273 GB, free: 1.965 MB / 0.8386 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.306e-05/1.501, allocations: 19.94 kB / 1.273 GB, free: 1.945 MB / 0.8386 GB Warning: The linear system: 1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 2 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 3 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 4 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ] = [ -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v2_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04105/1.542, allocations: 16.28 MB / 1.289 GB, free: 1.496 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.488e-05/1.542, allocations: 8 kB / 1.289 GB, free: 1.488 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003605/1.546, allocations: 0.7411 MB / 1.29 GB, free: 0.7461 MB / 0.8542 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01823/1.564, allocations: 5.099 MB / 1.295 GB, free: 11.64 MB / 0.8698 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006998/1.565, allocations: 71.95 kB / 1.295 GB, free: 11.57 MB / 0.8698 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03723/1.602, allocations: 24.85 MB / 1.319 GB, free: 2.254 MB / 0.8855 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.149e-05/1.602, allocations: 15.97 kB / 1.319 GB, free: 2.238 MB / 0.8855 GB Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03385/1.636, allocations: 14.4 MB / 1.333 GB, free: 3.543 MB / 0.9011 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002065/1.638, allocations: 0.7132 MB / 1.334 GB, free: 2.809 MB / 0.9011 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004192/1.638, allocations: 56.08 kB / 1.334 GB, free: 2.754 MB / 0.9011 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003555/1.642, allocations: 0.508 MB / 1.335 GB, free: 2.246 MB / 0.9011 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009456/1.643, allocations: 226.3 kB / 1.335 GB, free: 2.023 MB / 0.9011 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002431/1.643, allocations: 91.95 kB / 1.335 GB, free: 1.934 MB / 0.9011 GB Notification: Performance of sorting global known variables: time 0.001484/1.644, allocations: 0.9489 MB / 1.336 GB, free: 0.9805 MB / 0.9011 GB Notification: Performance of sort global known variables: time 1.8e-07/1.644, allocations: 0 / 1.336 GB, free: 0.9805 MB / 0.9011 GB Notification: Performance of remove unused functions: time 0.007087/1.652, allocations: 1.836 MB / 1.338 GB, free: 15.14 MB / 0.9167 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (165): * Single equations (assignments): 162 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(10,44,70.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0004666/1.652, allocations: 182.8 kB / 1.338 GB, free: 14.95 MB / 0.9167 GB Notification: Performance of simCode: created initialization part: time 0.02962/1.682, allocations: 12.36 MB / 1.35 GB, free: 2.496 MB / 0.9167 GB Notification: Performance of simCode: created event and clocks part: time 1.528e-05/1.682, allocations: 4 kB / 1.35 GB, free: 2.492 MB / 0.9167 GB Notification: Performance of simCode: created simulation system equations: time 0.01109/1.693, allocations: 4.403 MB / 1.354 GB, free: 14.05 MB / 0.9323 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002667/1.696, allocations: 254.1 kB / 1.354 GB, free: 13.81 MB / 0.9323 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03013/1.726, allocations: 12 MB / 1.366 GB, free: 1.676 MB / 0.9323 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004585/1.73, allocations: 2.922 MB / 1.369 GB, free: 14.72 MB / 0.948 GB Notification: Performance of simCode: alias equations: time 0.005726/1.736, allocations: 1.649 MB / 1.371 GB, free: 13.07 MB / 0.948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007015/1.737, allocations: 171.3 kB / 1.371 GB, free: 12.9 MB / 0.948 GB Notification: Performance of SimCode: time 9.32e-07/1.737, allocations: 0 / 1.371 GB, free: 12.9 MB / 0.948 GB Notification: Performance of Templates: time 0.6652/2.402, allocations: 77.43 MB / 1.446 GB, free: 273.3 MB / 0.948 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1)