Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_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 11.0.1-master/package.mo", uses=false) Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-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: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001148/0.001148, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001526/0.001526, allocations: 194.2 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.353/1.353, allocations: 222.9 MB / 240.2 MB, free: 4.41 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.655/2.655, allocations: 469.4 MB / 0.742 GB, free: 7.672 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001339/0.00134, allocations: 63.17 kB / 0.9083 GB, free: 34.47 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2718/0.2731, allocations: 159.1 MB / 1.064 GB, free: 14.45 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02129/0.2944, allocations: 18.28 MB / 1.082 GB, free: 12.09 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.01193/0.3064, allocations: 6.819 MB / 1.088 GB, free: 5.254 MB / 0.8419 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001677/0.3081, allocations: 55.88 kB / 1.088 GB, free: 5.199 MB / 0.8419 GB Notification: Performance of NFTyping.typeComponents: time 0.003801/0.312, allocations: 1.473 MB / 1.09 GB, free: 3.723 MB / 0.8419 GB Notification: Performance of NFTyping.typeBindings: time 0.003504/0.3155, allocations: 1.432 MB / 1.091 GB, free: 2.285 MB / 0.8419 GB Notification: Performance of NFTyping.typeClassSections: time 0.00342/0.3189, allocations: 1.265 MB / 1.092 GB, free: 1.02 MB / 0.8419 GB Notification: Performance of NFFlatten.flatten: time 0.00573/0.3247, allocations: 5.476 MB / 1.098 GB, free: 11.53 MB / 0.8575 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008583/0.3333, allocations: 7.218 MB / 1.105 GB, free: 4.199 MB / 0.8575 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003447/0.3368, allocations: 2.365 MB / 1.107 GB, free: 1.828 MB / 0.8575 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004337/0.3411, allocations: 2.964 MB / 1.11 GB, free: 14.86 MB / 0.8731 GB Notification: Performance of NFPackage.collectConstants: time 0.001432/0.3426, allocations: 0.5156 MB / 1.11 GB, free: 14.34 MB / 0.8731 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00307/0.3457, allocations: 1.272 MB / 1.112 GB, free: 13.07 MB / 0.8731 GB Notification: Performance of NFScalarize.scalarize: time 0.003132/0.3488, allocations: 2.25 MB / 1.114 GB, free: 10.81 MB / 0.8731 GB Notification: Performance of NFVerifyModel.verify: time 0.003863/0.3527, allocations: 2.187 MB / 1.116 GB, free: 8.617 MB / 0.8731 GB Notification: Performance of NFConvertDAE.convert: time 0.008461/0.3612, allocations: 7.732 MB / 1.124 GB, free: 0.8633 MB / 0.8731 GB Notification: Performance of FrontEnd - DAE generated: time 4.969e-06/0.3612, allocations: 0 / 1.124 GB, free: 0.8633 MB / 0.8731 GB Notification: Performance of FrontEnd: time 3.166e-06/0.3612, allocations: 0 / 1.124 GB, free: 0.8633 MB / 0.8731 GB Notification: Performance of Transformations before backend: time 0.0001972/0.3614, allocations: 3.938 kB / 1.124 GB, free: 0.8594 MB / 0.8731 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 0.009903/0.3713, allocations: 3.831 MB / 1.127 GB, free: 12.97 MB / 0.8887 GB Notification: Performance of prepare preOptimizeDAE: time 4.19e-05/0.3714, allocations: 8.031 kB / 1.127 GB, free: 12.96 MB / 0.8887 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001608/0.373, allocations: 0.5464 MB / 1.128 GB, free: 12.41 MB / 0.8887 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01393/0.3869, allocations: 2.415 MB / 1.13 GB, free: 9.984 MB / 0.8887 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00534/0.3923, allocations: 2.159 MB / 1.132 GB, free: 7.781 MB / 0.8887 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003273/0.3927, allocations: 279.2 kB / 1.133 GB, free: 7.508 MB / 0.8887 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001353/0.394, allocations: 348 kB / 1.133 GB, free: 7.168 MB / 0.8887 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01681/0.4109, allocations: 7.159 MB / 1.14 GB, free: 15.91 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001225/0.411, allocations: 3.938 kB / 1.14 GB, free: 15.91 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001005/0.412, allocations: 152 kB / 1.14 GB, free: 15.76 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005018/0.4125, allocations: 330.1 kB / 1.14 GB, free: 15.43 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01667/0.4292, allocations: 7.048 MB / 1.147 GB, free: 8.375 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 0.03348/0.4627, allocations: 26.74 MB / 1.173 GB, free: 11.44 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008307/0.4711, allocations: 4.992 MB / 1.178 GB, free: 6.152 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005885/0.477, allocations: 2.596 MB / 1.181 GB, free: 3.539 MB / 0.9356 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002659/0.4773, allocations: 131 kB / 1.181 GB, free: 3.395 MB / 0.9356 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.636e-05/0.4773, allocations: 60.5 kB / 1.181 GB, free: 3.324 MB / 0.9356 GB Notification: Performance of pre-optimization done (n=208): time 4.178e-06/0.4773, allocations: 0 / 1.181 GB, free: 3.324 MB / 0.9356 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 0.1077/0.5851, allocations: 30.95 MB / 1.211 GB, free: 4.281 MB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001144/0.5852, allocations: 239.6 kB / 1.211 GB, free: 4 MB / 0.9669 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002278/0.5875, allocations: 1.469 MB / 1.213 GB, free: 2.523 MB / 0.9669 GB Notification: Performance of collectPreVariables (initialization): time 0.0005187/0.588, allocations: 73.7 kB / 1.213 GB, free: 2.445 MB / 0.9669 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009431/0.589, allocations: 1.497 MB / 1.214 GB, free: 0.9297 MB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.001128/0.5901, allocations: 0.9205 MB / 1.215 GB, free: 15.99 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001614/0.5918, allocations: 0.6357 MB / 1.216 GB, free: 15.35 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 9.862e-05/0.5919, allocations: 309.1 kB / 1.216 GB, free: 15.04 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006401/0.5983, allocations: 2.69 MB / 1.219 GB, free: 12.34 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007421/0.6057, allocations: 3.567 MB / 1.222 GB, free: 8.398 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01316/0.619, allocations: 6.399 MB / 1.229 GB, free: 1.602 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.059e-05/0.619, allocations: 8 kB / 1.229 GB, free: 1.594 MB / 0.9825 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 0.02969/0.6487, allocations: 11.03 MB / 1.239 GB, free: 6.465 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 4.4e-05/0.6488, allocations: 16 kB / 1.239 GB, free: 6.449 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.973e-05/0.6488, allocations: 28 kB / 1.239 GB, free: 6.422 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01996/0.6688, allocations: 5.56 MB / 1.245 GB, free: 0.8438 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.4478/1.117, allocations: 0.9862 MB / 1.246 GB, free: 167.1 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04184/1.158, allocations: 28.2 MB / 1.273 GB, free: 156.7 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004635/1.163, allocations: 0.5742 MB / 1.274 GB, free: 156.6 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004524/1.164, allocations: 150.4 kB / 1.274 GB, free: 156.6 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008054/1.172, allocations: 3.983 MB / 1.278 GB, free: 155.3 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006405/1.178, allocations: 3.529 MB / 1.281 GB, free: 153.4 MB / 0.9981 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0847/1.263, allocations: 24.66 MB / 1.305 GB, free: 144.1 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.235e-05/1.263, allocations: 11.17 kB / 1.305 GB, free: 144.1 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 0.02322/1.286, allocations: 10.54 MB / 1.316 GB, free: 135.3 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 2.935e-05/1.286, allocations: 16 kB / 1.316 GB, free: 135.3 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.505e-05/1.286, allocations: 28.59 kB / 1.316 GB, free: 135.2 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01383/1.3, allocations: 4.331 MB / 1.32 GB, free: 130.9 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004351/1.304, allocations: 1.041 MB / 1.321 GB, free: 129.8 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02779/1.332, allocations: 27.13 MB / 1.348 GB, free: 102.1 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004457/1.337, allocations: 0.5613 MB / 1.348 GB, free: 101.5 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004476/1.337, allocations: 148 kB / 1.348 GB, free: 101.4 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 0.0009208/1.338, allocations: 410.6 kB / 1.349 GB, free: 101 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005426/1.339, allocations: 197.7 kB / 1.349 GB, free: 100.8 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 0.02341/1.362, allocations: 10.17 MB / 1.359 GB, free: 90.54 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.494e-05/1.362, allocations: 28 kB / 1.359 GB, free: 90.52 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.89e-05/1.362, allocations: 16 kB / 1.359 GB, free: 90.5 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.884e-05/1.362, allocations: 15.95 kB / 1.359 GB, free: 90.48 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 0.03244/1.395, allocations: 16.3 MB / 1.375 GB, free: 74.01 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.442e-05/1.395, allocations: 11.98 kB / 1.375 GB, free: 74 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00321/1.398, allocations: 0.7324 MB / 1.375 GB, free: 73.27 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01646/1.414, allocations: 5.193 MB / 1.38 GB, free: 68.06 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004797/1.415, allocations: 79.94 kB / 1.381 GB, free: 67.98 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03244/1.447, allocations: 27.26 MB / 1.407 GB, free: 40.24 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.134e-06/1.448, allocations: 12.03 kB / 1.407 GB, free: 40.23 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 0.02246/1.47, allocations: 10.09 MB / 1.417 GB, free: 29.88 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001427/1.471, allocations: 0.7202 MB / 1.418 GB, free: 29.14 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004282/1.472, allocations: 56 kB / 1.418 GB, free: 29.09 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003317/1.475, allocations: 0.5109 MB / 1.418 GB, free: 28.57 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006556/1.476, allocations: 230.8 kB / 1.419 GB, free: 28.35 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001973/1.476, allocations: 87.95 kB / 1.419 GB, free: 28.27 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.001173/1.477, allocations: 1.005 MB / 1.42 GB, free: 27.26 MB / 0.9981 GB Notification: Performance of sort global known variables: time 2e-07/1.477, allocations: 2.844 kB / 1.42 GB, free: 27.26 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.005035/1.482, allocations: 1.855 MB / 1.421 GB, free: 25.4 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)} 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 Backend phase and start with SimCode phase: time 0.0224/1.505, allocations: 10.76 MB / 1.432 GB, free: 14.39 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.02944/1.534, allocations: 14.39 MB / 1.446 GB, free: 15.92 MB / 1.014 GB Notification: Performance of simCode: created event and clocks part: time 1.477e-05/1.534, allocations: 0 / 1.446 GB, free: 15.92 MB / 1.014 GB Notification: Performance of simCode: created simulation system equations: time 0.01131/1.546, allocations: 4.428 MB / 1.45 GB, free: 11.46 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002361/1.548, allocations: 290.2 kB / 1.451 GB, free: 11.19 MB / 1.014 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. 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 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[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 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[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_p[1] ; line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[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] ; -transformer.conv1.V2[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] ; -loadRL.load1.v[1] ] 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 simCode: created linear, non-linear and system jacobian parts: time 0.09956/1.647, allocations: 44.18 MB / 1.494 GB, free: 12.99 MB / 1.061 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003132/1.651, allocations: 2.846 MB / 1.497 GB, free: 10.11 MB / 1.061 GB Notification: Performance of simCode: alias equations: time 0.005107/1.656, allocations: 1.661 MB / 1.498 GB, free: 8.449 MB / 1.061 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001728/1.658, allocations: 1.222 MB / 1.499 GB, free: 7.227 MB / 1.061 GB Notification: Performance of SimCode: time 1.022e-06/1.658, allocations: 0 / 1.499 GB, free: 7.227 MB / 1.061 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1522/1.81, allocations: 102.1 MB / 1.599 GB, free: 1.512 MB / 1.154 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.27/15.08, allocations: 11.22 kB / 1.599 GB, free: 1.504 MB / 1.154 GB (rm -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)