Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-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(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_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 0.005915/0.005915, allocations: 97.94 kB / 15.73 MB, free: 6.004 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001239/0.001239, allocations: 192.6 kB / 16.67 MB, free: 5.934 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.255/1.255, allocations: 222.9 MB / 240.4 MB, free: 4.309 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002051/0.002051, allocations: 290.1 kB / 290.8 MB, free: 1.902 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.8925/0.8925, allocations: 169.3 MB / 0.4983 GB, free: 13.79 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001639/0.001639, allocations: 99.84 kB / 0.6811 GB, free: 15.86 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1574/0.159, allocations: 86.98 MB / 0.766 GB, free: 8.809 MB / 0.5606 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.3552/0.5143, allocations: 18.25 MB / 0.7838 GB, free: 7.152 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01007/0.5244, allocations: 6.817 MB / 0.7905 GB, free: 2.539 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001647/0.5261, allocations: 56.88 kB / 0.7905 GB, free: 2.531 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.003306/0.5294, allocations: 1.469 MB / 0.792 GB, free: 1.66 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.003138/0.5326, allocations: 1.428 MB / 0.7934 GB, free: 0.8555 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.002852/0.5354, allocations: 1.299 MB / 0.7946 GB, free: 156 kB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.006008/0.5415, allocations: 5.464 MB / 0.8 GB, free: 13.85 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008735/0.5502, allocations: 7.113 MB / 0.8069 GB, free: 11.11 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004176/0.5544, allocations: 2.374 MB / 0.8092 GB, free: 10.04 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006197/0.5606, allocations: 2.97 MB / 0.8121 GB, free: 8.793 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.001277/0.5619, allocations: 0.5139 MB / 0.8126 GB, free: 8.793 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003013/0.5649, allocations: 1.276 MB / 0.8139 GB, free: 8.512 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.002707/0.5677, allocations: 2.242 MB / 0.8161 GB, free: 7.652 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.002906/0.5706, allocations: 2.188 MB / 0.8182 GB, free: 6.238 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.008693/0.5793, allocations: 7.797 MB / 0.8258 GB, free: 1.266 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 4.799e-06/0.5793, allocations: 1.156 kB / 0.8258 GB, free: 1.266 MB / 0.5762 GB Notification: Performance of FrontEnd: time 2.104e-06/0.5793, allocations: 0 / 0.8258 GB, free: 1.266 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 0.0001764/0.5795, allocations: 0 / 0.8258 GB, free: 1.266 MB / 0.5762 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 0.009377/0.5889, allocations: 3.915 MB / 0.8297 GB, free: 14.61 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 5.184e-05/0.5889, allocations: 10.31 kB / 0.8297 GB, free: 14.61 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0009573/0.5899, allocations: 0.549 MB / 0.8302 GB, free: 14.21 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01281/0.6027, allocations: 2.359 MB / 0.8325 GB, free: 13.08 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005773/0.6085, allocations: 2.194 MB / 0.8347 GB, free: 11.71 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002151/0.6088, allocations: 276.8 kB / 0.8349 GB, free: 11.58 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001022/0.6098, allocations: 350 kB / 0.8352 GB, free: 11.46 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01376/0.6236, allocations: 7.122 MB / 0.8422 GB, free: 5.629 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.36e-05/0.6237, allocations: 11.94 kB / 0.8422 GB, free: 5.617 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004787/0.6241, allocations: 148 kB / 0.8424 GB, free: 5.473 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004547/0.6246, allocations: 330.1 kB / 0.8427 GB, free: 5.148 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01466/0.6393, allocations: 7.005 MB / 0.8495 GB, free: 14.14 MB / 0.6075 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 0.03093/0.6702, allocations: 26.54 MB / 0.8754 GB, free: 1.402 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007849/0.6781, allocations: 4.979 MB / 0.8803 GB, free: 12.13 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005691/0.6838, allocations: 2.62 MB / 0.8829 GB, free: 9.484 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002244/0.684, allocations: 139 kB / 0.883 GB, free: 9.328 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.247e-05/0.6841, allocations: 52.56 kB / 0.883 GB, free: 9.27 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=208): time 3.536e-06/0.6841, allocations: 0 / 0.883 GB, free: 9.27 MB / 0.6387 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 0.103/0.7871, allocations: 31.19 MB / 0.9135 GB, free: 10.02 MB / 0.67 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001224/0.7873, allocations: 239.6 kB / 0.9137 GB, free: 9.73 MB / 0.67 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002204/0.7895, allocations: 1.45 MB / 0.9151 GB, free: 8.273 MB / 0.67 GB Notification: Performance of collectPreVariables (initialization): time 0.0005133/0.79, allocations: 65.7 kB / 0.9152 GB, free: 8.203 MB / 0.67 GB Notification: Performance of collectInitialEqns (initialization): time 0.001031/0.7911, allocations: 1.554 MB / 0.9167 GB, free: 6.633 MB / 0.67 GB Notification: Performance of collectInitialBindings (initialization): time 0.001214/0.7923, allocations: 0.9567 MB / 0.9177 GB, free: 5.668 MB / 0.67 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001409/0.7937, allocations: 0.6398 MB / 0.9183 GB, free: 5.02 MB / 0.67 GB Notification: Performance of setup shared object (initialization): time 0.0001001/0.7938, allocations: 305.1 kB / 0.9186 GB, free: 4.719 MB / 0.67 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005933/0.7997, allocations: 2.674 MB / 0.9212 GB, free: 2.035 MB / 0.67 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006495/0.8063, allocations: 3.556 MB / 0.9247 GB, free: 14.1 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01252/0.8188, allocations: 6.383 MB / 0.9309 GB, free: 7.32 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.353e-05/0.8189, allocations: 11.94 kB / 0.9309 GB, free: 7.309 MB / 0.6856 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 0.02828/0.8471, allocations: 11 MB / 0.9416 GB, free: 12.2 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 3.732e-05/0.8472, allocations: 16.56 kB / 0.9417 GB, free: 12.18 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.095e-05/0.8472, allocations: 28 kB / 0.9417 GB, free: 12.16 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01958/0.8668, allocations: 5.458 MB / 0.947 GB, free: 6.684 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004428/0.8713, allocations: 0.9867 MB / 0.948 GB, free: 5.695 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04161/0.9129, allocations: 28.18 MB / 0.9755 GB, free: 9.066 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00446/0.9174, allocations: 0.5537 MB / 0.976 GB, free: 8.512 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006419/0.9181, allocations: 155.9 kB / 0.9762 GB, free: 8.359 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008756/0.9269, allocations: 3.964 MB / 0.9801 GB, free: 4.387 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006429/0.9333, allocations: 3.513 MB / 0.9835 GB, free: 0.4961 MB / 0.7325 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08785/1.021, allocations: 24.55 MB / 1.007 GB, free: 7.441 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.772e-05/1.021, allocations: 8.375 kB / 1.007 GB, free: 7.434 MB / 0.7637 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 0.0256/1.047, allocations: 10.52 MB / 1.018 GB, free: 12.77 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 3.348e-05/1.047, allocations: 27.86 kB / 1.018 GB, free: 12.74 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.909e-05/1.047, allocations: 24 kB / 1.018 GB, free: 12.72 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0145/1.061, allocations: 4.243 MB / 1.022 GB, free: 8.461 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004654/1.066, allocations: 1.03 MB / 1.023 GB, free: 7.43 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03464/1.101, allocations: 27.13 MB / 1.049 GB, free: 11.58 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004326/1.105, allocations: 0.5342 MB / 1.05 GB, free: 11.04 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005894/1.106, allocations: 159.9 kB / 1.05 GB, free: 10.89 MB / 0.8106 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i3[2] - line2.i1[2] 0.0 = (-line2.i2[1]) - line2.i3[1] - line2.i1[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001089/1.107, allocations: 403.1 kB / 1.05 GB, free: 10.48 MB / 0.8106 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006973/1.108, allocations: 206.7 kB / 1.051 GB, free: 10.28 MB / 0.8106 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 0.02589/1.134, allocations: 10.18 MB / 1.061 GB, free: 28 kB / 0.8106 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.18e-05/1.134, allocations: 28 kB / 1.061 GB, free: 0 / 0.8106 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.112e-05/1.134, allocations: 12.05 kB / 1.061 GB, free: 15.98 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.664e-05/1.134, allocations: 15.89 kB / 1.061 GB, free: 15.97 MB / 0.8262 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 0.03782/1.172, allocations: 16.27 MB / 1.077 GB, free: 15.45 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.665e-05/1.172, allocations: 11.98 kB / 1.077 GB, free: 15.44 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003389/1.175, allocations: 0.7338 MB / 1.077 GB, free: 14.71 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01788/1.193, allocations: 5.099 MB / 1.082 GB, free: 9.594 MB / 0.8419 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000568/1.193, allocations: 75.95 kB / 1.082 GB, free: 9.52 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.3503/1.544, allocations: 27.24 MB / 1.109 GB, free: 266.2 MB / 0.8419 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.055e-05/1.544, allocations: 9.406 kB / 1.109 GB, free: 266.2 MB / 0.8419 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 0.02619/1.57, allocations: 10.11 MB / 1.119 GB, free: 263.1 MB / 0.8419 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002016/1.572, allocations: 0.7279 MB / 1.12 GB, free: 262.8 MB / 0.8419 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004642/1.573, allocations: 56.67 kB / 1.12 GB, free: 262.7 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003438/1.576, allocations: 0.4998 MB / 1.12 GB, free: 262.7 MB / 0.8419 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006976/1.577, allocations: 233.5 kB / 1.12 GB, free: 262.7 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002161/1.577, allocations: 89.14 kB / 1.12 GB, free: 262.6 MB / 0.8419 GB Notification: Performance of sorting global known variables: time 0.001243/1.578, allocations: 0.9788 MB / 1.121 GB, free: 262.3 MB / 0.8419 GB Notification: Performance of sort global known variables: time 1.5e-07/1.578, allocations: 0 / 1.121 GB, free: 262.3 MB / 0.8419 GB Notification: Performance of remove unused functions: time 0.005849/1.584, allocations: 1.843 MB / 1.123 GB, free: 262.1 MB / 0.8419 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 0.02336/1.607, allocations: 10.77 MB / 1.134 GB, free: 258.3 MB / 0.8419 GB Notification: Performance of simCode: created initialization part: time 0.02536/1.633, allocations: 12.44 MB / 1.146 GB, free: 254 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 1.207e-05/1.633, allocations: 0 / 1.146 GB, free: 254 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.009128/1.642, allocations: 4.435 MB / 1.15 GB, free: 252.4 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002222/1.644, allocations: 286.1 kB / 1.15 GB, free: 252.3 MB / 0.8419 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. 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 0.07959/1.724, allocations: 42.41 MB / 1.192 GB, free: 212.3 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002494/1.726, allocations: 2.855 MB / 1.195 GB, free: 209.4 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.003683/1.73, allocations: 1.644 MB / 1.196 GB, free: 207.8 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001354/1.731, allocations: 1.226 MB / 1.197 GB, free: 206.5 MB / 0.8419 GB Notification: Performance of SimCode: time 8.71e-07/1.731, allocations: 0 / 1.197 GB, free: 206.5 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1285/1.86, allocations: 103 MB / 1.298 GB, free: 104 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.28/17.14, allocations: 16.62 kB / 1.298 GB, free: 104 MB / 0.8419 GB (rm -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate --output-file BuildingSystems_BuildingSystems.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 BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)