Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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: "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_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 0.001153/0.001153, allocations: 104 kB / 16.4 MB, free: 6.457 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001149/0.001149, allocations: 196 kB / 17.34 MB, free: 5.715 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.313/1.313, allocations: 222.9 MB / 241 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7823/0.7823, allocations: 122.9 MB / 414.1 MB, free: 15.84 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001178/0.001178, allocations: 63 kB / 0.5681 GB, free: 29.05 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1364/0.1376, allocations: 77.94 MB / 0.6442 GB, free: 9.586 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.02105/0.1586, allocations: 18.24 MB / 0.662 GB, free: 7.285 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01054/0.1692, allocations: 6.863 MB / 0.6687 GB, free: 412 kB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001426/0.1707, allocations: 59.88 kB / 0.6687 GB, free: 352 kB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.003607/0.1743, allocations: 1.468 MB / 0.6702 GB, free: 14.87 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.003283/0.1776, allocations: 1.475 MB / 0.6716 GB, free: 13.39 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.002934/0.1805, allocations: 1.261 MB / 0.6728 GB, free: 12.13 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.005535/0.1861, allocations: 5.476 MB / 0.6782 GB, free: 6.641 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007525/0.1936, allocations: 7.116 MB / 0.6851 GB, free: 15.41 MB / 0.5294 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003697/0.1974, allocations: 2.388 MB / 0.6875 GB, free: 13.02 MB / 0.5294 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004771/0.2022, allocations: 2.98 MB / 0.6904 GB, free: 10.03 MB / 0.5294 GB Notification: Performance of NFPackage.collectConstants: time 0.001059/0.2033, allocations: 0.5156 MB / 0.6909 GB, free: 9.516 MB / 0.5294 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002459/0.2057, allocations: 1.272 MB / 0.6921 GB, free: 8.242 MB / 0.5294 GB Notification: Performance of NFScalarize.scalarize: time 0.002429/0.2082, allocations: 2.238 MB / 0.6943 GB, free: 6 MB / 0.5294 GB Notification: Performance of NFVerifyModel.verify: time 0.00317/0.2114, allocations: 2.194 MB / 0.6965 GB, free: 3.797 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.007875/0.2193, allocations: 7.796 MB / 0.7041 GB, free: 11.98 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 1.024e-05/0.2193, allocations: 0 / 0.7041 GB, free: 11.98 MB / 0.545 GB Notification: Performance of FrontEnd: time 2.916e-06/0.2193, allocations: 0 / 0.7041 GB, free: 11.98 MB / 0.545 GB Notification: Performance of Transformations before backend: time 0.0002333/0.2196, allocations: 0 / 0.7041 GB, free: 11.98 MB / 0.545 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 0.009912/0.2295, allocations: 3.915 MB / 0.7079 GB, free: 7.996 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 4.39e-05/0.2295, allocations: 12.03 kB / 0.7079 GB, free: 7.984 MB / 0.545 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007834/0.2303, allocations: 0.5426 MB / 0.7084 GB, free: 7.434 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01365/0.244, allocations: 2.429 MB / 0.7108 GB, free: 5 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00558/0.2496, allocations: 2.203 MB / 0.713 GB, free: 2.754 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001864/0.2498, allocations: 271.2 kB / 0.7132 GB, free: 2.488 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009185/0.2507, allocations: 352 kB / 0.7135 GB, free: 2.145 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01378/0.2645, allocations: 7.156 MB / 0.7205 GB, free: 10.89 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.022e-05/0.2646, allocations: 0 / 0.7205 GB, free: 10.89 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004214/0.2651, allocations: 148 kB / 0.7207 GB, free: 10.74 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000443/0.2655, allocations: 338.1 kB / 0.721 GB, free: 10.41 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01607/0.2816, allocations: 7.047 MB / 0.7279 GB, free: 3.352 MB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.3604/0.6421, allocations: 26.54 MB / 0.7538 GB, free: 81 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01045/0.6525, allocations: 4.983 MB / 0.7587 GB, free: 78.77 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006266/0.6588, allocations: 2.615 MB / 0.7612 GB, free: 78 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002438/0.6591, allocations: 129.6 kB / 0.7613 GB, free: 77.9 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.969e-05/0.6592, allocations: 66.25 kB / 0.7614 GB, free: 77.84 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=208): time 4.468e-06/0.6592, allocations: 0 / 0.7614 GB, free: 77.84 MB / 0.5762 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.conv2.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.conv2.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 0.0981/0.7573, allocations: 31.19 MB / 0.7919 GB, free: 61.92 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.744e-05/0.7574, allocations: 243.6 kB / 0.7921 GB, free: 61.63 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001688/0.759, allocations: 1.474 MB / 0.7935 GB, free: 60.17 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0004174/0.7595, allocations: 73.7 kB / 0.7936 GB, free: 60.09 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005262/0.76, allocations: 1.547 MB / 0.7951 GB, free: 58.74 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006927/0.7607, allocations: 0.9632 MB / 0.7961 GB, free: 57.79 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009324/0.7617, allocations: 0.636 MB / 0.7967 GB, free: 57.15 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 3.796e-05/0.7617, allocations: 309.1 kB / 0.797 GB, free: 56.84 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004981/0.7667, allocations: 2.693 MB / 0.7996 GB, free: 54.14 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005266/0.772, allocations: 3.571 MB / 0.8031 GB, free: 50.19 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01041/0.7824, allocations: 6.399 MB / 0.8093 GB, free: 43.4 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.655e-05/0.7824, allocations: 8 kB / 0.8093 GB, free: 43.39 MB / 0.5762 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.conv2.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.conv2.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 0.02488/0.8073, allocations: 11 MB / 0.8201 GB, free: 32.29 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 6.183e-05/0.8074, allocations: 20.09 kB / 0.8201 GB, free: 32.27 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.073e-05/0.8075, allocations: 29.78 kB / 0.8201 GB, free: 32.24 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01836/0.8258, allocations: 5.559 MB / 0.8256 GB, free: 26.66 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004248/0.8301, allocations: 0.9906 MB / 0.8265 GB, free: 25.67 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03538/0.8655, allocations: 28.2 MB / 0.8541 GB, free: 13.06 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004794/0.8703, allocations: 0.581 MB / 0.8546 GB, free: 12.48 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004548/0.8708, allocations: 148 kB / 0.8548 GB, free: 12.33 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008178/0.879, allocations: 3.98 MB / 0.8587 GB, free: 8.344 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006721/0.8858, allocations: 3.532 MB / 0.8621 GB, free: 4.434 MB / 0.5919 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09019/0.976, allocations: 24.62 MB / 0.8862 GB, free: 11.31 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.491e-05/0.976, allocations: 8 kB / 0.8862 GB, free: 11.3 MB / 0.6231 GB Warning: The linear system: 1 : transformer.conv1.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.conv1.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 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[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 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[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_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ] = [ -loadRL.load1.v[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.conv2.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] ] 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_lambda0): time 0.02656/1.003, allocations: 10.55 MB / 0.8965 GB, free: 0.6172 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 3.209e-05/1.003, allocations: 16 kB / 0.8965 GB, free: 0.6016 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.08e-05/1.003, allocations: 27.98 kB / 0.8965 GB, free: 0.5742 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0156/1.018, allocations: 4.317 MB / 0.9007 GB, free: 12.23 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004788/1.023, allocations: 1.045 MB / 0.9017 GB, free: 11.19 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03589/1.059, allocations: 27.16 MB / 0.9283 GB, free: 15.33 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004872/1.064, allocations: 0.5538 MB / 0.9288 GB, free: 14.77 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005465/1.065, allocations: 155.9 kB / 0.929 GB, free: 14.62 MB / 0.67 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.i1[2]) - line2.i3[2] - line2.i2[2] 0.0 = (-line2.i1[1]) - line2.i3[1] - line2.i2[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 0.001023/1.066, allocations: 395.3 kB / 0.9293 GB, free: 14.23 MB / 0.67 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006747/1.066, allocations: 218.7 kB / 0.9296 GB, free: 14.01 MB / 0.67 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 : transformer.conv2.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.conv2.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 postOpt wrapFunctionCalls (simulation): time 0.02758/1.094, allocations: 10.16 MB / 0.9395 GB, free: 3.766 MB / 0.67 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.651e-05/1.094, allocations: 31.98 kB / 0.9395 GB, free: 3.734 MB / 0.67 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.127e-05/1.094, allocations: 12 kB / 0.9395 GB, free: 3.723 MB / 0.67 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.038e-05/1.094, allocations: 11.95 kB / 0.9395 GB, free: 3.711 MB / 0.67 GB Warning: The linear system: 1 : 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] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : 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] 4 : transformer.conv2.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.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ; line2.v2_p[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] ; 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.conv2.V2[1] ] 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 0.03726/1.131, allocations: 16.33 MB / 0.9555 GB, free: 3.199 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.994e-05/1.131, allocations: 11.94 kB / 0.9555 GB, free: 3.188 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003573/1.135, allocations: 0.7339 MB / 0.9562 GB, free: 2.453 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01883/1.154, allocations: 5.177 MB / 0.9613 GB, free: 13.25 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000641/1.154, allocations: 75.95 kB / 0.9613 GB, free: 13.18 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04069/1.195, allocations: 27.22 MB / 0.9879 GB, free: 1.477 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.035e-05/1.195, allocations: 12.03 kB / 0.9879 GB, free: 1.465 MB / 0.7169 GB Warning: The linear system: 1 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[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.conv2.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] ] might be structurally or numerically singular for variable line2.v2_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02663/1.222, allocations: 10.15 MB / 0.9978 GB, free: 7.066 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002528/1.224, allocations: 0.7415 MB / 0.9986 GB, free: 6.305 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000638/1.225, allocations: 48 kB / 0.9986 GB, free: 6.258 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003996/1.229, allocations: 0.5187 MB / 0.9991 GB, free: 5.738 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007529/1.23, allocations: 222.4 kB / 0.9993 GB, free: 5.52 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002333/1.23, allocations: 91.89 kB / 0.9994 GB, free: 5.43 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001456/1.232, allocations: 1.001 MB / 1 GB, free: 4.426 MB / 0.7325 GB Notification: Performance of sort global known variables: time 3.7e-07/1.232, allocations: 0 / 1 GB, free: 4.426 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.005839/1.237, allocations: 1.855 MB / 1.002 GB, free: 2.57 MB / 0.7325 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 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[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.conv2.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] ] might be structurally or numerically singular for variable line2.v2_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 0.02626/1.264, allocations: 10.8 MB / 1.013 GB, free: 7.516 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.03108/1.295, allocations: 12.48 MB / 1.025 GB, free: 10.93 MB / 0.7637 GB Notification: Performance of simCode: created event and clocks part: time 1.073e-05/1.295, allocations: 0 / 1.025 GB, free: 10.93 MB / 0.7637 GB Notification: Performance of simCode: created simulation system equations: time 0.01157/1.306, allocations: 4.398 MB / 1.029 GB, free: 6.496 MB / 0.7637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002964/1.309, allocations: 291.7 kB / 1.03 GB, free: 6.219 MB / 0.7637 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.conv2.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.conv2.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.conv2.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.conv2.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 0.3924/1.702, allocations: 42.46 MB / 1.071 GB, free: 251.9 MB / 0.7637 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002548/1.704, allocations: 2.848 MB / 1.074 GB, free: 250.5 MB / 0.7637 GB Notification: Performance of simCode: alias equations: time 0.003924/1.708, allocations: 1.655 MB / 1.075 GB, free: 249.9 MB / 0.7637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001494/1.71, allocations: 1.226 MB / 1.077 GB, free: 248.8 MB / 0.7637 GB Notification: Performance of SimCode: time 9.92e-07/1.71, allocations: 0 / 1.077 GB, free: 248.8 MB / 0.7637 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.145/1.855, allocations: 103.4 MB / 1.178 GB, free: 149 MB / 0.7637 GB Notification: Performance of buildModelFMU: Generate platform static: time 16.31/18.17, allocations: 8.281 kB / 1.178 GB, free: 149 MB / 0.7637 GB (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)