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: translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD") translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001386/0.001386, allocations: 111.4 kB / 17.09 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001439/0.001439, allocations: 190.8 kB / 18.02 MB, free: 5.094 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.35/1.35, allocations: 222.9 MB / 241.7 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 0.7144/0.7144, allocations: 115.3 MB / 407.2 MB, free: 6.16 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001231/0.001231, allocations: 71.36 kB / 0.5585 GB, free: 32.23 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1626/0.1638, allocations: 76.17 MB / 0.6328 GB, free: 4.332 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.0214/0.1853, allocations: 18.25 MB / 0.6507 GB, free: 2.016 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.01203/0.1973, allocations: 6.871 MB / 0.6574 GB, free: 11.12 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002218/0.1996, allocations: 55.88 kB / 0.6574 GB, free: 11.07 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.004161/0.2038, allocations: 1.461 MB / 0.6588 GB, free: 9.605 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.003939/0.2077, allocations: 1.447 MB / 0.6603 GB, free: 8.152 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003445/0.2112, allocations: 1.267 MB / 0.6615 GB, free: 6.883 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.006273/0.2175, allocations: 5.46 MB / 0.6668 GB, free: 1.41 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009238/0.2268, allocations: 7.128 MB / 0.6738 GB, free: 10.17 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003781/0.2306, allocations: 2.38 MB / 0.6761 GB, free: 7.785 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004778/0.2354, allocations: 2.972 MB / 0.679 GB, free: 4.805 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.001001/0.2364, allocations: 0.5156 MB / 0.6795 GB, free: 4.289 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002619/0.239, allocations: 1.272 MB / 0.6808 GB, free: 3.016 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.002186/0.2412, allocations: 2.25 MB / 0.683 GB, free: 0.7617 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.002665/0.2439, allocations: 2.187 MB / 0.6851 GB, free: 14.57 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.007735/0.2516, allocations: 7.775 MB / 0.6927 GB, free: 6.77 MB / 0.5294 GB Notification: Performance of FrontEnd - DAE generated: time 5.23e-06/0.2517, allocations: 4 kB / 0.6927 GB, free: 6.766 MB / 0.5294 GB Notification: Performance of FrontEnd: time 2.084e-06/0.2517, allocations: 0 / 0.6927 GB, free: 6.766 MB / 0.5294 GB Notification: Performance of Transformations before backend: time 0.0001705/0.2519, allocations: 4 kB / 0.6927 GB, free: 6.762 MB / 0.5294 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 0.007869/0.2597, allocations: 3.831 MB / 0.6964 GB, free: 2.871 MB / 0.5294 GB Notification: Performance of prepare preOptimizeDAE: time 4.518e-05/0.2598, allocations: 8.031 kB / 0.6964 GB, free: 2.863 MB / 0.5294 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01274/0.2725, allocations: 2.415 MB / 0.6988 GB, free: 452 kB / 0.5294 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004498/0.2771, allocations: 2.19 MB / 0.7009 GB, free: 14.2 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002095/0.2773, allocations: 271.5 kB / 0.7012 GB, free: 13.94 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008614/0.2782, allocations: 347.9 kB / 0.7015 GB, free: 13.6 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01424/0.2924, allocations: 7.159 MB / 0.7085 GB, free: 6.336 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.35e-05/0.2925, allocations: 7.938 kB / 0.7085 GB, free: 6.328 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004224/0.293, allocations: 152 kB / 0.7087 GB, free: 6.18 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004408/0.2934, allocations: 326.1 kB / 0.709 GB, free: 5.859 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01496/0.3084, allocations: 7.051 MB / 0.7159 GB, free: 14.79 MB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03224/0.3407, allocations: 26.51 MB / 0.7418 GB, free: 2.113 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008164/0.3489, allocations: 4.984 MB / 0.7466 GB, free: 12.83 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006034/0.3549, allocations: 2.604 MB / 0.7492 GB, free: 10.2 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003193/0.3553, allocations: 135 kB / 0.7493 GB, free: 10.04 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.823e-05/0.3554, allocations: 60.5 kB / 0.7494 GB, free: 9.977 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=208): time 4.739e-06/0.3554, allocations: 0 / 0.7494 GB, free: 9.977 MB / 0.5919 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 0.4201/0.7755, allocations: 30.97 MB / 0.7796 GB, free: 110.3 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.555e-05/0.7756, allocations: 235.3 kB / 0.7798 GB, free: 110.1 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001765/0.7774, allocations: 1.47 MB / 0.7813 GB, free: 109.3 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 0.0004098/0.7778, allocations: 69.61 kB / 0.7813 GB, free: 109.2 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005506/0.7783, allocations: 1.502 MB / 0.7828 GB, free: 107.9 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006528/0.779, allocations: 0.9176 MB / 0.7837 GB, free: 107.1 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008916/0.7799, allocations: 0.6345 MB / 0.7843 GB, free: 106.8 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 3.792e-05/0.7799, allocations: 305.1 kB / 0.7846 GB, free: 106.5 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005029/0.785, allocations: 2.695 MB / 0.7872 GB, free: 105.1 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005457/0.7904, allocations: 3.566 MB / 0.7907 GB, free: 102.6 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01003/0.8005, allocations: 6.396 MB / 0.797 GB, free: 96.4 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.588e-05/0.8005, allocations: 14.44 kB / 0.797 GB, free: 96.39 MB / 0.5919 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 0.0235/0.824, allocations: 10.98 MB / 0.8077 GB, free: 85.3 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.309e-05/0.8241, allocations: 21.17 kB / 0.8077 GB, free: 85.28 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.448e-05/0.8241, allocations: 32 kB / 0.8077 GB, free: 85.25 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01661/0.8407, allocations: 5.556 MB / 0.8132 GB, free: 79.68 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00389/0.8447, allocations: 0.9906 MB / 0.8141 GB, free: 78.68 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03294/0.8776, allocations: 28.19 MB / 0.8417 GB, free: 50.1 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004358/0.882, allocations: 0.5732 MB / 0.8422 GB, free: 49.53 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000354/0.8824, allocations: 155.9 kB / 0.8424 GB, free: 49.38 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006406/0.8888, allocations: 3.98 MB / 0.8463 GB, free: 45.39 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00505/0.8939, allocations: 3.528 MB / 0.8497 GB, free: 41.48 MB / 0.5919 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07532/0.9692, allocations: 24.62 MB / 0.8738 GB, free: 16.38 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.696e-05/0.9693, allocations: 8 kB / 0.8738 GB, free: 16.38 MB / 0.5919 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 0.02173/0.991, allocations: 10.54 MB / 0.8841 GB, free: 5.699 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.654e-05/0.9911, allocations: 19.94 kB / 0.8841 GB, free: 5.68 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.245e-05/0.9911, allocations: 24 kB / 0.8841 GB, free: 5.656 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01307/1.004, allocations: 4.323 MB / 0.8883 GB, free: 1.316 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004262/1.009, allocations: 1.045 MB / 0.8893 GB, free: 276 kB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03394/1.042, allocations: 27.14 MB / 0.9158 GB, free: 4.426 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004637/1.047, allocations: 0.5498 MB / 0.9164 GB, free: 3.875 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003932/1.048, allocations: 152 kB / 0.9165 GB, free: 3.727 MB / 0.6231 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 0.0009993/1.049, allocations: 406.9 kB / 0.9169 GB, free: 3.324 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006447/1.049, allocations: 197.7 kB / 0.9171 GB, free: 3.129 MB / 0.6231 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 0.02571/1.075, allocations: 10.17 MB / 0.927 GB, free: 8.879 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.085e-05/1.075, allocations: 11.95 kB / 0.927 GB, free: 8.867 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.358e-06/1.075, allocations: 4 kB / 0.927 GB, free: 8.863 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001953/1.077, allocations: 0.7288 MB / 0.9278 GB, free: 8.113 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004818/1.078, allocations: 47.98 kB / 0.9278 GB, free: 8.066 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003521/1.081, allocations: 0.5012 MB / 0.9283 GB, free: 7.566 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006644/1.082, allocations: 285.5 kB / 0.9286 GB, free: 7.289 MB / 0.6387 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.02254/1.104, allocations: 9.417 MB / 0.9378 GB, free: 13.92 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.01692/1.121, allocations: 8.902 MB / 0.9465 GB, free: 4.93 MB / 0.6544 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 0.005173/1.126, allocations: 2.669 MB / 0.9491 GB, free: 2.266 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.001851/1.128, allocations: 1.001 MB / 0.95 GB, free: 1.262 MB / 0.6544 GB Notification: Performance of Backend: time 4.61e-07/1.128, allocations: 0 / 0.95 GB, free: 1.262 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.02671/1.155, allocations: 10.55 MB / 0.9603 GB, free: 6.664 MB / 0.67 GB Notification: Performance of SimCode: time 0.01542/1.171, allocations: 7.282 MB / 0.9675 GB, free: 15.36 MB / 0.6856 GB Notification: Performance of Templates: time 0.4522/1.623, allocations: 95.66 MB / 1.061 GB, free: 251.3 MB / 0.7481 GB make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.makefile (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 & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)