Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_maint.7.0.x_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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/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 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_maint.7.0.x_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_maint.7.0.x_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 0.008736/0.008736, allocations: 104.7 kB / 15.74 MB, free: 6.484 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001548/0.001548, allocations: 193.5 kB / 16.67 MB, free: 6.375 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.741/1.741, allocations: 205.1 MB / 222.6 MB, free: 4.488 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.581/1.581, allocations: 251.7 MB / 0.5094 GB, free: 3.047 MB / 414.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001472/0.001473, allocations: 75.88 kB / 0.7259 GB, free: 8.93 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3194/0.3209, allocations: 104.7 MB / 0.8281 GB, free: 120 kB / 0.6387 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02369/0.3446, allocations: 18.23 MB / 0.8459 GB, free: 13.82 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.01498/0.3596, allocations: 6.871 MB / 0.8527 GB, free: 6.93 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003798/0.3635, allocations: 55.88 kB / 0.8527 GB, free: 6.875 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.005164/0.3687, allocations: 1.461 MB / 0.8541 GB, free: 5.41 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.00577/0.3745, allocations: 1.424 MB / 0.8555 GB, free: 3.98 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.004787/0.3793, allocations: 1.294 MB / 0.8568 GB, free: 2.688 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.008551/0.3879, allocations: 5.453 MB / 0.8621 GB, free: 13.22 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01065/0.3986, allocations: 7.105 MB / 0.8691 GB, free: 6.004 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005793/0.4045, allocations: 2.376 MB / 0.8714 GB, free: 3.621 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006658/0.4112, allocations: 2.961 MB / 0.8743 GB, free: 0.6523 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 0.002576/0.4139, allocations: 0.5156 MB / 0.8748 GB, free: 140 kB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005386/0.4193, allocations: 1.272 MB / 0.876 GB, free: 14.86 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.004502/0.4238, allocations: 2.246 MB / 0.8782 GB, free: 12.61 MB / 0.7012 GB Notification: Performance of NFVerifyModel.verify: time 0.005965/0.4298, allocations: 2.19 MB / 0.8803 GB, free: 10.41 MB / 0.7012 GB Notification: Performance of NFConvertDAE.convert: time 0.01446/0.4443, allocations: 7.775 MB / 0.8879 GB, free: 2.617 MB / 0.7012 GB Notification: Performance of FrontEnd - DAE generated: time 1.414e-05/0.4444, allocations: 4 kB / 0.8879 GB, free: 2.613 MB / 0.7012 GB Notification: Performance of FrontEnd: time 4.088e-06/0.4444, allocations: 0 / 0.8879 GB, free: 2.613 MB / 0.7012 GB Notification: Performance of Transformations before backend: time 0.0003882/0.4448, allocations: 0 / 0.8879 GB, free: 2.613 MB / 0.7012 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 0.01488/0.4597, allocations: 3.811 MB / 0.8917 GB, free: 14.74 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 8.374e-05/0.4598, allocations: 12.03 kB / 0.8917 GB, free: 14.73 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01328/0.4731, allocations: 2.356 MB / 0.894 GB, free: 12.37 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006895/0.4801, allocations: 2.182 MB / 0.8961 GB, free: 10.14 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003581/0.4805, allocations: 271.5 kB / 0.8964 GB, free: 9.875 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002622/0.4831, allocations: 347.9 kB / 0.8967 GB, free: 9.535 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01991/0.503, allocations: 7.127 MB / 0.9037 GB, free: 2.305 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001062/0.5032, allocations: 7.984 kB / 0.9037 GB, free: 2.297 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006697/0.5039, allocations: 148 kB / 0.9038 GB, free: 2.152 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005565/0.5045, allocations: 338.1 kB / 0.9041 GB, free: 1.82 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.6704/1.175, allocations: 6.996 MB / 0.911 GB, free: 68.21 MB / 0.7169 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 0.04114/1.216, allocations: 26.47 MB / 0.9368 GB, free: 49.19 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007787/1.224, allocations: 4.99 MB / 0.9417 GB, free: 46.45 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005909/1.23, allocations: 2.621 MB / 0.9442 GB, free: 45.32 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000313/1.23, allocations: 127.8 kB / 0.9444 GB, free: 45.21 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.161e-05/1.23, allocations: 62.5 kB / 0.9444 GB, free: 45.15 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=208): time 5.571e-06/1.23, allocations: 0 / 0.9444 GB, free: 45.15 MB / 0.7169 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 0.09101/1.321, allocations: 30.97 MB / 0.9747 GB, free: 23.44 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.337e-05/1.321, allocations: 235.6 kB / 0.9749 GB, free: 23.16 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001775/1.323, allocations: 1.45 MB / 0.9763 GB, free: 21.7 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0005198/1.324, allocations: 65.7 kB / 0.9764 GB, free: 21.63 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006793/1.324, allocations: 1.501 MB / 0.9778 GB, free: 20.12 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008623/1.325, allocations: 0.914 MB / 0.9787 GB, free: 19.21 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009973/1.326, allocations: 0.6279 MB / 0.9793 GB, free: 18.58 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 4.945e-05/1.326, allocations: 305.1 kB / 0.9796 GB, free: 18.28 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00452/1.331, allocations: 2.67 MB / 0.9822 GB, free: 15.6 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004832/1.336, allocations: 3.556 MB / 0.9857 GB, free: 11.66 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009859/1.345, allocations: 6.387 MB / 0.992 GB, free: 4.879 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.641e-05/1.346, allocations: 12 kB / 0.992 GB, free: 4.867 MB / 0.7169 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 0.02542/1.371, allocations: 11 MB / 1.003 GB, free: 9.77 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 5.715e-05/1.371, allocations: 20 kB / 1.003 GB, free: 9.75 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.234e-05/1.371, allocations: 24 kB / 1.003 GB, free: 9.727 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01947/1.391, allocations: 5.458 MB / 1.008 GB, free: 4.254 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004489/1.395, allocations: 0.9828 MB / 1.009 GB, free: 3.27 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04266/1.438, allocations: 28.15 MB / 1.037 GB, free: 6.688 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004559/1.442, allocations: 0.5536 MB / 1.037 GB, free: 6.133 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007268/1.443, allocations: 151.9 kB / 1.037 GB, free: 5.984 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008323/1.452, allocations: 3.96 MB / 1.041 GB, free: 2.016 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007339/1.459, allocations: 3.518 MB / 1.045 GB, free: 14.12 MB / 0.7794 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08792/1.547, allocations: 24.56 MB / 1.069 GB, free: 5.055 MB / 0.795 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.155e-05/1.547, allocations: 8 kB / 1.069 GB, free: 5.047 MB / 0.795 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 0.02578/1.573, allocations: 10.48 MB / 1.079 GB, free: 10.41 MB / 0.8106 GB Notification: Performance of prepare postOptimizeDAE: time 4.388e-05/1.573, allocations: 16 kB / 1.079 GB, free: 10.39 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.241e-05/1.573, allocations: 28 kB / 1.079 GB, free: 10.37 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01496/1.588, allocations: 4.247 MB / 1.083 GB, free: 6.105 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004809/1.593, allocations: 1.037 MB / 1.084 GB, free: 5.066 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03745/1.63, allocations: 27.12 MB / 1.11 GB, free: 9.242 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004331/1.635, allocations: 0.5342 MB / 1.111 GB, free: 8.707 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004385/1.635, allocations: 156 kB / 1.111 GB, free: 8.555 MB / 0.8419 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.i3[2] - line2.i1[2] 0.0 = (-line2.i2[1]) - line2.i3[1] - line2.i1[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 0.001013/1.636, allocations: 391.3 kB / 1.111 GB, free: 8.164 MB / 0.8419 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005575/1.637, allocations: 201.6 kB / 1.112 GB, free: 7.965 MB / 0.8419 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 0.02573/1.662, allocations: 10.16 MB / 1.122 GB, free: 13.72 MB / 0.8575 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.248e-05/1.662, allocations: 28 kB / 1.122 GB, free: 13.7 MB / 0.8575 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.853e-05/1.663, allocations: 16 kB / 1.122 GB, free: 13.68 MB / 0.8575 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.301e-05/1.663, allocations: 11.95 kB / 1.122 GB, free: 13.67 MB / 0.8575 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 0.03864/1.701, allocations: 16.29 MB / 1.138 GB, free: 13.19 MB / 0.8731 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.173e-05/1.701, allocations: 8 kB / 1.138 GB, free: 13.18 MB / 0.8731 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003452/1.705, allocations: 0.7379 MB / 1.138 GB, free: 12.45 MB / 0.8731 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01801/1.723, allocations: 5.091 MB / 1.143 GB, free: 7.336 MB / 0.8731 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007416/1.724, allocations: 71.95 kB / 1.143 GB, free: 7.266 MB / 0.8731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0427/1.766, allocations: 27.23 MB / 1.17 GB, free: 11.55 MB / 0.9044 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.22e-05/1.766, allocations: 12.03 kB / 1.17 GB, free: 11.54 MB / 0.9044 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 0.02526/1.792, allocations: 10.09 MB / 1.18 GB, free: 1.199 MB / 0.9044 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001901/1.794, allocations: 0.7248 MB / 1.18 GB, free: 464 kB / 0.9044 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003658/1.794, allocations: 52 kB / 1.181 GB, free: 412 kB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00305/1.797, allocations: 0.5069 MB / 1.181 GB, free: 15.89 MB / 0.92 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007345/1.798, allocations: 226.4 kB / 1.181 GB, free: 15.67 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002275/1.798, allocations: 91.94 kB / 1.181 GB, free: 15.58 MB / 0.92 GB Notification: Performance of sorting global known variables: time 0.001351/1.799, allocations: 0.9777 MB / 1.182 GB, free: 14.6 MB / 0.92 GB Notification: Performance of sort global known variables: time 4.71e-07/1.799, allocations: 0 / 1.182 GB, free: 14.6 MB / 0.92 GB Notification: Performance of remove unused functions: time 0.005894/1.805, allocations: 1.832 MB / 1.184 GB, free: 12.77 MB / 0.92 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 0.0004365/1.806, allocations: 186.8 kB / 1.184 GB, free: 12.58 MB / 0.92 GB Notification: Performance of simCode: created initialization part: time 0.02856/1.834, allocations: 12.42 MB / 1.196 GB, free: 64 kB / 0.92 GB Notification: Performance of simCode: created event and clocks part: time 1.961e-05/1.834, allocations: 4.062 kB / 1.196 GB, free: 60 kB / 0.92 GB Notification: Performance of simCode: created simulation system equations: time 0.01086/1.845, allocations: 4.421 MB / 1.201 GB, free: 11.59 MB / 0.9356 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00237/1.848, allocations: 290.9 kB / 1.201 GB, free: 11.32 MB / 0.9356 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02371/1.871, allocations: 9.484 MB / 1.21 GB, free: 1.727 MB / 0.9356 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0036/1.875, allocations: 2.849 MB / 1.213 GB, free: 14.84 MB / 0.9512 GB Notification: Performance of simCode: alias equations: time 0.00484/1.88, allocations: 1.649 MB / 1.215 GB, free: 13.19 MB / 0.9512 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007062/1.881, allocations: 175.3 kB / 1.215 GB, free: 13.02 MB / 0.9512 GB Notification: Performance of SimCode: time 1.082e-06/1.881, allocations: 0 / 1.215 GB, free: 13.02 MB / 0.9512 GB Notification: Performance of Templates: time 0.6255/2.506, allocations: 78.83 MB / 1.292 GB, free: 345.6 MB / 1.014 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.makefile (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)