Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_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_3.0.0_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 0.001173/0.001173, allocations: 103.4 kB / 15.33 MB, free: 0.5078 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001238/0.001238, allocations: 198.6 kB / 16.26 MB, free: 6.621 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.416/1.416, allocations: 222.9 MB / 239.9 MB, free: 4.508 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.821/2.821, allocations: 472.6 MB / 0.7448 GB, free: 4.887 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001207/0.001207, allocations: 60.38 kB / 0.9116 GB, free: 33.57 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3031/0.3043, allocations: 159.9 MB / 1.068 GB, free: 10.77 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02078/0.3251, allocations: 18.16 MB / 1.085 GB, free: 8.539 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.01175/0.3369, allocations: 6.781 MB / 1.092 GB, free: 1.742 MB / 0.8419 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001698/0.3387, allocations: 43.88 kB / 1.092 GB, free: 1.699 MB / 0.8419 GB Notification: Performance of NFTyping.typeComponents: time 0.004144/0.3429, allocations: 1.361 MB / 1.093 GB, free: 344 kB / 0.8419 GB Notification: Performance of NFTyping.typeBindings: time 0.004193/0.3471, allocations: 1.327 MB / 1.095 GB, free: 15 MB / 0.8575 GB Notification: Performance of NFTyping.typeClassSections: time 0.003462/0.3505, allocations: 1.17 MB / 1.096 GB, free: 13.83 MB / 0.8575 GB Notification: Performance of NFFlatten.flatten: time 0.006001/0.3566, allocations: 5.491 MB / 1.101 GB, free: 8.328 MB / 0.8575 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01347/0.37, allocations: 8.511 MB / 1.11 GB, free: 15.71 MB / 0.8731 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00605/0.3761, allocations: 2.384 MB / 1.112 GB, free: 13.32 MB / 0.8731 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005389/0.3816, allocations: 3.14 MB / 1.115 GB, free: 10.18 MB / 0.8731 GB Notification: Performance of NFPackage.collectConstants: time 0.001682/0.3833, allocations: 0.5156 MB / 1.115 GB, free: 9.66 MB / 0.8731 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003433/0.3867, allocations: 1.276 MB / 1.117 GB, free: 8.383 MB / 0.8731 GB Notification: Performance of NFScalarize.scalarize: time 0.003589/0.3903, allocations: 2.242 MB / 1.119 GB, free: 6.137 MB / 0.8731 GB Notification: Performance of NFVerifyModel.verify: time 0.004438/0.3948, allocations: 2.19 MB / 1.121 GB, free: 3.938 MB / 0.8731 GB Notification: Performance of NFConvertDAE.convert: time 0.009918/0.4047, allocations: 7.791 MB / 1.129 GB, free: 12.12 MB / 0.8887 GB Notification: Performance of FrontEnd - DAE generated: time 6.833e-06/0.4048, allocations: 0 / 1.129 GB, free: 12.12 MB / 0.8887 GB Notification: Performance of FrontEnd: time 1.943e-06/0.4048, allocations: 0 / 1.129 GB, free: 12.12 MB / 0.8887 GB Notification: Performance of Transformations before backend: time 0.0002331/0.405, allocations: 0 / 1.129 GB, free: 12.12 MB / 0.8887 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 994 * Number of variables: 994 Notification: Performance of Generate backend data structure: time 0.01077/0.4158, allocations: 3.83 MB / 1.132 GB, free: 8.234 MB / 0.8887 GB Notification: Performance of prepare preOptimizeDAE: time 3.821e-05/0.4159, allocations: 8.031 kB / 1.132 GB, free: 8.227 MB / 0.8887 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01352/0.4294, allocations: 2.407 MB / 1.135 GB, free: 5.812 MB / 0.8887 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004922/0.4343, allocations: 2.174 MB / 1.137 GB, free: 3.594 MB / 0.8887 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002718/0.4346, allocations: 271.5 kB / 1.137 GB, free: 3.328 MB / 0.8887 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002147/0.4368, allocations: 351.9 kB / 1.137 GB, free: 2.984 MB / 0.8887 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02221/0.459, allocations: 7.163 MB / 1.144 GB, free: 11.72 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001649/0.4592, allocations: 0 / 1.144 GB, free: 11.72 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001432/0.4607, allocations: 148 kB / 1.145 GB, free: 11.57 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005725/0.4613, allocations: 334.1 kB / 1.145 GB, free: 11.25 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01918/0.4805, allocations: 7.047 MB / 1.152 GB, free: 4.188 MB / 0.9044 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04021/0.5207, allocations: 26.74 MB / 1.178 GB, free: 7.262 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009264/0.53, allocations: 4.996 MB / 1.183 GB, free: 1.961 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006933/0.537, allocations: 2.6 MB / 1.185 GB, free: 15.34 MB / 0.9512 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004255/0.5375, allocations: 131 kB / 1.185 GB, free: 15.19 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001134/0.5376, allocations: 72.48 kB / 1.186 GB, free: 15.11 MB / 0.9512 GB Notification: Performance of pre-optimization done (n=208): time 6.883e-06/0.5376, allocations: 7.984 kB / 1.186 GB, free: 15.1 MB / 0.9512 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=271): time 0.1095/0.6472, allocations: 30.94 MB / 1.216 GB, free: 88 kB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001462/0.6474, allocations: 243.6 kB / 1.216 GB, free: 15.8 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002671/0.65, allocations: 1.473 MB / 1.217 GB, free: 14.32 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 0.0005741/0.6506, allocations: 73.7 kB / 1.217 GB, free: 14.24 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.001168/0.6518, allocations: 1.493 MB / 1.219 GB, free: 12.73 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 0.001246/0.6531, allocations: 0.9165 MB / 1.22 GB, free: 11.8 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001203/0.6543, allocations: 0.6318 MB / 1.22 GB, free: 11.16 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001094/0.6544, allocations: 309.1 kB / 1.221 GB, free: 10.85 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00624/0.6607, allocations: 2.694 MB / 1.223 GB, free: 8.148 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006824/0.6675, allocations: 3.567 MB / 1.227 GB, free: 4.203 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01281/0.6804, allocations: 6.402 MB / 1.233 GB, free: 13.4 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.911e-05/0.6804, allocations: 8 kB / 1.233 GB, free: 13.39 MB / 0.9981 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization): time 0.02874/0.7092, allocations: 11.01 MB / 1.244 GB, free: 2.266 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 4.646e-05/0.7092, allocations: 16 kB / 1.244 GB, free: 2.25 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.576e-05/0.7093, allocations: 28.56 kB / 1.244 GB, free: 2.223 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.6258/1.335, allocations: 5.552 MB / 1.249 GB, free: 165.5 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004566/1.34, allocations: 0.9933 MB / 1.25 GB, free: 165.5 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04347/1.383, allocations: 28.19 MB / 1.278 GB, free: 153.1 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004456/1.388, allocations: 0.5702 MB / 1.278 GB, free: 153.1 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004241/1.388, allocations: 154.3 kB / 1.279 GB, free: 153 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.007443/1.396, allocations: 3.983 MB / 1.282 GB, free: 151.7 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006012/1.402, allocations: 3.532 MB / 1.286 GB, free: 149.8 MB / 0.9981 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08234/1.484, allocations: 24.66 MB / 1.31 GB, free: 138.8 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.771e-05/1.484, allocations: 8 kB / 1.31 GB, free: 138.8 MB / 0.9981 GB Warning: The linear system: 1 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] 3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2] 4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v1_p[2] ; line2.v3_p[2] ; line2.v3_n[2] ] = [ -transformer.conv3.V2[2] ; line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ; -loadRL.load3.v[2] ; line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1] ] might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02288/1.507, allocations: 10.53 MB / 1.32 GB, free: 128.2 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 3.138e-05/1.507, allocations: 16 kB / 1.32 GB, free: 128.2 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.242e-05/1.507, allocations: 24 kB / 1.32 GB, free: 128.2 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01372/1.521, allocations: 4.344 MB / 1.325 GB, free: 123.8 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004454/1.525, allocations: 1.037 MB / 1.326 GB, free: 122.8 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02793/1.553, allocations: 27.14 MB / 1.352 GB, free: 94.98 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005212/1.559, allocations: 0.5475 MB / 1.353 GB, free: 94.43 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004824/1.559, allocations: 159.9 kB / 1.353 GB, free: 94.27 MB / 0.9981 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001172/1.56, allocations: 393.2 kB / 1.353 GB, free: 93.9 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005684/1.561, allocations: 197.7 kB / 1.353 GB, free: 93.71 MB / 0.9981 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02275/1.584, allocations: 10.18 MB / 1.363 GB, free: 83.46 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.261e-05/1.584, allocations: 28 kB / 1.363 GB, free: 83.43 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.91e-05/1.584, allocations: 12 kB / 1.363 GB, free: 83.42 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.976e-05/1.584, allocations: 15.95 kB / 1.363 GB, free: 83.41 MB / 0.9981 GB Warning: The linear system: 1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 2 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 3 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 4 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ] = [ -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v2_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03057/1.614, allocations: 16.3 MB / 1.379 GB, free: 66.93 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.498e-05/1.614, allocations: 11.94 kB / 1.379 GB, free: 66.91 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003431/1.618, allocations: 0.738 MB / 1.38 GB, free: 66.18 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0166/1.634, allocations: 5.196 MB / 1.385 GB, free: 60.96 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006277/1.635, allocations: 67.95 kB / 1.385 GB, free: 60.9 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03555/1.671, allocations: 27.28 MB / 1.412 GB, free: 33.14 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.291e-05/1.671, allocations: 19.78 kB / 1.412 GB, free: 33.12 MB / 0.9981 GB Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02427/1.695, allocations: 10.09 MB / 1.422 GB, free: 22.79 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001967/1.697, allocations: 0.7249 MB / 1.422 GB, free: 22.04 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008044/1.698, allocations: 55.84 kB / 1.422 GB, free: 21.99 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003589/1.701, allocations: 0.507 MB / 1.423 GB, free: 21.48 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009202/1.702, allocations: 226.4 kB / 1.423 GB, free: 21.26 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003301/1.703, allocations: 95.95 kB / 1.423 GB, free: 21.16 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.001551/1.704, allocations: 1.001 MB / 1.424 GB, free: 20.16 MB / 0.9981 GB Notification: Performance of sort global known variables: time 1.6e-07/1.704, allocations: 0 / 1.424 GB, free: 20.16 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.007291/1.712, allocations: 1.852 MB / 1.426 GB, free: 18.31 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (165): * Single equations (assignments): 162 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(10,44,70.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005934/1.712, allocations: 183.6 kB / 1.426 GB, free: 18.12 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.02932/1.742, allocations: 14.37 MB / 1.44 GB, free: 3.672 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 1.364e-05/1.742, allocations: 5.875 kB / 1.44 GB, free: 3.668 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.009665/1.751, allocations: 4.429 MB / 1.444 GB, free: 15.21 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00322/1.755, allocations: 296.8 kB / 1.445 GB, free: 14.93 MB / 1.014 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02975/1.784, allocations: 11.12 MB / 1.456 GB, free: 3.691 MB / 1.014 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004452/1.789, allocations: 2.849 MB / 1.458 GB, free: 0.8047 MB / 1.014 GB Notification: Performance of simCode: alias equations: time 0.006143/1.795, allocations: 1.661 MB / 1.46 GB, free: 15.14 MB / 1.029 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009312/1.796, allocations: 171.3 kB / 1.46 GB, free: 14.97 MB / 1.029 GB Notification: Performance of SimCode: time 5.61e-07/1.796, allocations: 0 / 1.46 GB, free: 14.97 MB / 1.029 GB Notification: Performance of Templates: time 0.1212/1.917, allocations: 78.4 MB / 1.537 GB, free: 0.7656 MB / 1.092 GB make -j1 -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.makefile (rm -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & ./Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)