Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_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 8.1.4-maint.8.1.x/package.mo", uses=false) 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) 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_8_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_8_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 0.001144/0.001144, allocations: 115.3 kB / 15.34 MB, free: 0.5156 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001097/0.001097, allocations: 191.8 kB / 16.25 MB, free: 6.629 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.531/1.531, allocations: 205.1 MB / 222.1 MB, free: 4.727 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.672/1.672, allocations: 292.2 MB / 0.5485 GB, free: 13.64 MB / 462.1 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 0.001451/0.001452, allocations: 60.52 kB / 0.671 GB, free: 26.23 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2739/0.2753, allocations: 114.5 MB / 0.7829 GB, free: 13.84 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02314/0.2985, allocations: 18.13 MB / 0.8006 GB, free: 11.64 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01459/0.3132, allocations: 6.806 MB / 0.8072 GB, free: 4.812 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003475/0.3167, allocations: 51.88 kB / 0.8073 GB, free: 4.762 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.004959/0.3218, allocations: 1.368 MB / 0.8086 GB, free: 3.391 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.004642/0.3265, allocations: 1.296 MB / 0.8099 GB, free: 2.09 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.00426/0.3307, allocations: 1.177 MB / 0.811 GB, free: 0.9141 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.008373/0.3391, allocations: 5.492 MB / 0.8164 GB, free: 11.41 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01496/0.3541, allocations: 8.522 MB / 0.8247 GB, free: 2.781 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005762/0.3599, allocations: 2.372 MB / 0.827 GB, free: 412 kB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005929/0.3659, allocations: 3.144 MB / 0.8301 GB, free: 13.25 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.002194/0.3681, allocations: 0.5156 MB / 0.8306 GB, free: 12.73 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004303/0.3725, allocations: 1.276 MB / 0.8319 GB, free: 11.46 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.004954/0.3775, allocations: 2.242 MB / 0.8341 GB, free: 9.211 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.006844/0.3843, allocations: 2.194 MB / 0.8362 GB, free: 7.008 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.01324/0.3976, allocations: 7.783 MB / 0.8438 GB, free: 15.2 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 5.901e-06/0.3977, allocations: 0 / 0.8438 GB, free: 15.2 MB / 0.67 GB Notification: Performance of FrontEnd: time 1.984e-06/0.3977, allocations: 0 / 0.8438 GB, free: 15.2 MB / 0.67 GB Notification: Performance of Transformations before backend: time 0.0003082/0.398, allocations: 0 / 0.8438 GB, free: 15.2 MB / 0.67 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 0.01633/0.4143, allocations: 3.823 MB / 0.8475 GB, free: 11.32 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 7.615e-05/0.4144, allocations: 12.03 kB / 0.8475 GB, free: 11.31 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01303/0.4275, allocations: 2.345 MB / 0.8498 GB, free: 8.957 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005195/0.4327, allocations: 2.167 MB / 0.8519 GB, free: 6.746 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002336/0.433, allocations: 271.5 kB / 0.8522 GB, free: 6.48 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001124/0.4341, allocations: 347.9 kB / 0.8525 GB, free: 6.141 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01739/0.4515, allocations: 7.124 MB / 0.8595 GB, free: 14.92 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.645e-05/0.4516, allocations: 7.938 kB / 0.8595 GB, free: 14.91 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005842/0.4522, allocations: 148 kB / 0.8596 GB, free: 14.77 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004919/0.4527, allocations: 342 kB / 0.86 GB, free: 14.43 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01745/0.4702, allocations: 6.997 MB / 0.8668 GB, free: 7.418 MB / 0.6856 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 0.04043/0.5107, allocations: 26.69 MB / 0.8929 GB, free: 10.54 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008514/0.5192, allocations: 4.984 MB / 0.8977 GB, free: 5.254 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00571/0.525, allocations: 2.604 MB / 0.9003 GB, free: 2.629 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002728/0.5253, allocations: 131 kB / 0.9004 GB, free: 2.484 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.038e-05/0.5253, allocations: 60.56 kB / 0.9005 GB, free: 2.414 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=208): time 4.408e-06/0.5253, allocations: 0 / 0.9005 GB, free: 2.414 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 0.5858/1.111, allocations: 30.95 MB / 0.9307 GB, free: 124.4 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.273e-05/1.111, allocations: 243.1 kB / 0.9309 GB, free: 124.1 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002769/1.114, allocations: 1.449 MB / 0.9323 GB, free: 123.6 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0008515/1.115, allocations: 67.25 kB / 0.9324 GB, free: 123.5 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.001102/1.116, allocations: 1.497 MB / 0.9339 GB, free: 122.4 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.001136/1.117, allocations: 0.9211 MB / 0.9348 GB, free: 121.6 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001256/1.118, allocations: 0.6295 MB / 0.9354 GB, free: 121.4 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 5.893e-05/1.119, allocations: 308.2 kB / 0.9357 GB, free: 121.1 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00628/1.125, allocations: 2.669 MB / 0.9383 GB, free: 120.2 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006943/1.132, allocations: 3.554 MB / 0.9417 GB, free: 118.4 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01254/1.144, allocations: 6.383 MB / 0.948 GB, free: 115.3 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.151e-05/1.144, allocations: 7.5 kB / 0.948 GB, free: 115.3 MB / 0.7325 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 0.02682/1.171, allocations: 10.99 MB / 0.9587 GB, free: 110.1 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 5.231e-05/1.171, allocations: 19.56 kB / 0.9587 GB, free: 110.1 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.02e-05/1.171, allocations: 27.5 kB / 0.9588 GB, free: 110.1 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01874/1.19, allocations: 5.479 MB / 0.9641 GB, free: 107.5 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003976/1.194, allocations: 0.9837 MB / 0.9651 GB, free: 107.2 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03543/1.23, allocations: 28.17 MB / 0.9926 GB, free: 80 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004588/1.234, allocations: 0.5497 MB / 0.9931 GB, free: 79.45 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004473/1.235, allocations: 151.9 kB / 0.9933 GB, free: 79.3 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006819/1.242, allocations: 3.964 MB / 0.9971 GB, free: 75.33 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005448/1.247, allocations: 3.513 MB / 1.001 GB, free: 71.45 MB / 0.7325 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0779/1.325, allocations: 24.6 MB / 1.025 GB, free: 46.37 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.039e-05/1.325, allocations: 8 kB / 1.025 GB, free: 46.36 MB / 0.7325 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 0.02237/1.347, allocations: 10.49 MB / 1.035 GB, free: 35.73 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 3.36e-05/1.347, allocations: 19.98 kB / 1.035 GB, free: 35.71 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.008e-05/1.348, allocations: 28.56 kB / 1.035 GB, free: 35.69 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01359/1.361, allocations: 4.262 MB / 1.039 GB, free: 31.41 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00415/1.365, allocations: 1.028 MB / 1.04 GB, free: 30.39 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02706/1.392, allocations: 27.13 MB / 1.067 GB, free: 2.566 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004053/1.396, allocations: 0.538 MB / 1.067 GB, free: 2.027 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000376/1.397, allocations: 151.9 kB / 1.067 GB, free: 1.879 MB / 0.7325 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 0.0009544/1.398, allocations: 391.3 kB / 1.068 GB, free: 1.488 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005679/1.398, allocations: 205.6 kB / 1.068 GB, free: 1.285 MB / 0.7325 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 0.02639/1.425, allocations: 10.17 MB / 1.078 GB, free: 7.047 MB / 0.7481 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.038e-05/1.425, allocations: 35.94 kB / 1.078 GB, free: 7.012 MB / 0.7481 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.58e-05/1.425, allocations: 12 kB / 1.078 GB, free: 7 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.594e-05/1.425, allocations: 19.94 kB / 1.078 GB, free: 6.98 MB / 0.7481 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 0.03865/1.464, allocations: 16.29 MB / 1.094 GB, free: 6.504 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.583e-05/1.464, allocations: 8 kB / 1.094 GB, free: 6.496 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00373/1.467, allocations: 0.7375 MB / 1.094 GB, free: 5.758 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01909/1.487, allocations: 5.122 MB / 1.099 GB, free: 0.6211 MB / 0.7637 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007876/1.487, allocations: 75.88 kB / 1.099 GB, free: 0.5469 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04132/1.529, allocations: 27.24 MB / 1.126 GB, free: 4.824 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.166e-05/1.529, allocations: 12.03 kB / 1.126 GB, free: 4.812 MB / 0.795 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 0.02808/1.557, allocations: 10.09 MB / 1.136 GB, free: 10.48 MB / 0.8106 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002145/1.559, allocations: 0.7171 MB / 1.137 GB, free: 9.738 MB / 0.8106 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005565/1.56, allocations: 59.98 kB / 1.137 GB, free: 9.68 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003658/1.563, allocations: 0.4953 MB / 1.137 GB, free: 9.184 MB / 0.8106 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009615/1.564, allocations: 230.3 kB / 1.137 GB, free: 8.957 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002439/1.565, allocations: 95.95 kB / 1.138 GB, free: 8.863 MB / 0.8106 GB Notification: Performance of sorting global known variables: time 0.001678/1.566, allocations: 0.9776 MB / 1.138 GB, free: 7.883 MB / 0.8106 GB Notification: Performance of sort global known variables: time 1.6e-07/1.566, allocations: 0 / 1.138 GB, free: 7.883 MB / 0.8106 GB Notification: Performance of remove unused functions: time 0.008978/1.575, allocations: 1.842 MB / 1.14 GB, free: 6.043 MB / 0.8106 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 0.0005047/1.576, allocations: 182.8 kB / 1.14 GB, free: 5.855 MB / 0.8106 GB Notification: Performance of simCode: created initialization part: time 0.03384/1.61, allocations: 14.34 MB / 1.154 GB, free: 7.438 MB / 0.8262 GB Notification: Performance of simCode: created event and clocks part: time 1.22e-05/1.61, allocations: 4.062 kB / 1.154 GB, free: 7.434 MB / 0.8262 GB Notification: Performance of simCode: created simulation system equations: time 0.01116/1.621, allocations: 4.424 MB / 1.159 GB, free: 2.969 MB / 0.8262 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003047/1.624, allocations: 288.8 kB / 1.159 GB, free: 2.695 MB / 0.8262 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02495/1.649, allocations: 11.13 MB / 1.17 GB, free: 7.445 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004362/1.653, allocations: 2.846 MB / 1.173 GB, free: 4.566 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.006374/1.66, allocations: 1.649 MB / 1.174 GB, free: 2.914 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001106/1.661, allocations: 167.3 kB / 1.174 GB, free: 2.75 MB / 0.8419 GB Notification: Performance of SimCode: time 1.213e-06/1.661, allocations: 4 kB / 1.174 GB, free: 2.746 MB / 0.8419 GB Notification: Performance of Templates: time 0.1157/1.777, allocations: 77.99 MB / 1.251 GB, free: 4.957 MB / 0.92 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)