Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.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.BalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD") translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001267/0.001267, allocations: 111.2 kB / 17.09 MB, free: 5.992 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001302/0.001302, allocations: 194.9 kB / 18.03 MB, free: 5.066 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.331/1.331, allocations: 222.9 MB / 241.7 MB, free: 15.13 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7088/0.7088, allocations: 115.3 MB / 407.2 MB, free: 6.129 MB / 318.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001177/0.001177, allocations: 67.41 kB / 0.5584 GB, free: 32.13 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.155/0.1562, allocations: 76.18 MB / 0.6328 GB, free: 4.305 MB / 478.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD): time 0.02157/0.1778, allocations: 18.16 MB / 0.6506 GB, free: 2.078 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.01181/0.1897, allocations: 6.797 MB / 0.6572 GB, free: 11.26 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001755/0.1914, allocations: 59.81 kB / 0.6573 GB, free: 11.2 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.0037/0.1952, allocations: 1.465 MB / 0.6587 GB, free: 9.734 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.003865/0.1991, allocations: 1.416 MB / 0.6601 GB, free: 8.312 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003144/0.2022, allocations: 1.257 MB / 0.6613 GB, free: 7.055 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.006306/0.2086, allocations: 5.445 MB / 0.6666 GB, free: 1.598 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008139/0.2167, allocations: 7.076 MB / 0.6735 GB, free: 10.41 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003706/0.2205, allocations: 2.369 MB / 0.6759 GB, free: 8.035 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005376/0.2259, allocations: 2.949 MB / 0.6787 GB, free: 5.078 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.001597/0.2275, allocations: 0.5156 MB / 0.6792 GB, free: 4.562 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003714/0.2312, allocations: 1.268 MB / 0.6805 GB, free: 3.293 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.003558/0.2348, allocations: 2.238 MB / 0.6827 GB, free: 1.051 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.004619/0.2394, allocations: 2.167 MB / 0.6848 GB, free: 14.88 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.009825/0.2493, allocations: 7.744 MB / 0.6923 GB, free: 7.109 MB / 0.5294 GB Notification: Performance of FrontEnd - DAE generated: time 6.763e-06/0.2493, allocations: 0 / 0.6923 GB, free: 7.109 MB / 0.5294 GB Notification: Performance of FrontEnd: time 1.964e-06/0.2493, allocations: 0 / 0.6923 GB, free: 7.109 MB / 0.5294 GB Notification: Performance of Transformations before backend: time 0.0002301/0.2496, allocations: 0 / 0.6923 GB, free: 7.109 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: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.01149/0.2611, allocations: 3.791 MB / 0.696 GB, free: 3.258 MB / 0.5294 GB Notification: Performance of prepare preOptimizeDAE: time 7.167e-05/0.2612, allocations: 12.02 kB / 0.6961 GB, free: 3.246 MB / 0.5294 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01318/0.2743, allocations: 2.415 MB / 0.6984 GB, free: 0.8242 MB / 0.5294 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004714/0.2791, allocations: 2.167 MB / 0.7005 GB, free: 14.61 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002672/0.2794, allocations: 267.4 kB / 0.7008 GB, free: 14.34 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001045/0.2804, allocations: 347.8 kB / 0.7011 GB, free: 14 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01462/0.2951, allocations: 7.126 MB / 0.7081 GB, free: 6.773 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.82e-05/0.2952, allocations: 4 kB / 0.7081 GB, free: 6.77 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004398/0.2956, allocations: 159.9 kB / 0.7082 GB, free: 6.613 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004331/0.2961, allocations: 330 kB / 0.7085 GB, free: 6.289 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01615/0.3122, allocations: 7.028 MB / 0.7154 GB, free: 15.25 MB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03641/0.3487, allocations: 26.42 MB / 0.7412 GB, free: 2.656 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00875/0.3575, allocations: 4.988 MB / 0.7461 GB, free: 13.36 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005965/0.3635, allocations: 2.616 MB / 0.7486 GB, free: 10.72 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002712/0.3638, allocations: 135 kB / 0.7488 GB, free: 10.57 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.794e-05/0.3638, allocations: 56.5 kB / 0.7488 GB, free: 10.51 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=208): time 4.709e-06/0.3638, allocations: 4 kB / 0.7488 GB, free: 10.5 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 0.4171/0.781, allocations: 30.92 MB / 0.779 GB, free: 110.6 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.54e-05/0.7811, allocations: 235.2 kB / 0.7792 GB, free: 110.3 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001838/0.7829, allocations: 1.426 MB / 0.7806 GB, free: 109.6 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 0.0005076/0.7834, allocations: 65.61 kB / 0.7807 GB, free: 109.5 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006319/0.7841, allocations: 1.49 MB / 0.7821 GB, free: 108.2 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007617/0.7848, allocations: 0.92 MB / 0.783 GB, free: 107.4 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009691/0.7858, allocations: 0.6339 MB / 0.7837 GB, free: 107.1 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 4.615e-05/0.7859, allocations: 305.1 kB / 0.784 GB, free: 106.8 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005127/0.791, allocations: 2.694 MB / 0.7866 GB, free: 105.4 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005241/0.7963, allocations: 3.569 MB / 0.7901 GB, free: 102.9 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01031/0.8066, allocations: 6.409 MB / 0.7963 GB, free: 97.03 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.95e-05/0.8067, allocations: 8 kB / 0.7963 GB, free: 97.02 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 0.02422/0.8309, allocations: 10.98 MB / 0.8071 GB, free: 85.92 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.89e-05/0.8309, allocations: 16 kB / 0.8071 GB, free: 85.91 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.914e-05/0.831, allocations: 27.5 kB / 0.8071 GB, free: 85.88 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01768/0.8487, allocations: 5.562 MB / 0.8125 GB, free: 80.31 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004031/0.8527, allocations: 1.002 MB / 0.8135 GB, free: 79.3 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03478/0.8876, allocations: 28.17 MB / 0.841 GB, free: 50.73 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004499/0.8921, allocations: 0.577 MB / 0.8416 GB, free: 50.16 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003636/0.8925, allocations: 147.9 kB / 0.8417 GB, free: 50.01 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006771/0.8993, allocations: 3.988 MB / 0.8456 GB, free: 46.02 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005129/0.9044, allocations: 3.528 MB / 0.8491 GB, free: 42.11 MB / 0.5919 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0768/0.9812, allocations: 24.64 MB / 0.8731 GB, free: 17 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.204e-05/0.9813, allocations: 8 kB / 0.8731 GB, free: 16.99 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 0.02216/1.003, allocations: 10.53 MB / 0.8834 GB, free: 6.324 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.117e-05/1.004, allocations: 20 kB / 0.8834 GB, free: 6.305 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.444e-05/1.004, allocations: 31.92 kB / 0.8835 GB, free: 6.273 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01348/1.017, allocations: 4.335 MB / 0.8877 GB, free: 1.922 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004247/1.021, allocations: 1.041 MB / 0.8887 GB, free: 0.8828 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03515/1.057, allocations: 27.15 MB / 0.9152 GB, free: 5.039 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005229/1.062, allocations: 0.5498 MB / 0.9158 GB, free: 4.488 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005044/1.062, allocations: 148 kB / 0.9159 GB, free: 4.344 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 0.00131/1.064, allocations: 411.1 kB / 0.9163 GB, free: 3.938 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007923/1.064, allocations: 194.8 kB / 0.9165 GB, free: 3.746 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 0.02795/1.092, allocations: 10.16 MB / 0.9264 GB, free: 9.508 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.767e-05/1.093, allocations: 23.83 kB / 0.9264 GB, free: 9.484 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.923e-06/1.093, allocations: 0 / 0.9264 GB, free: 9.484 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001899/1.094, allocations: 0.726 MB / 0.9271 GB, free: 8.738 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004381/1.095, allocations: 48 kB / 0.9272 GB, free: 8.691 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003568/1.098, allocations: 0.507 MB / 0.9277 GB, free: 8.184 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006837/1.099, allocations: 277.5 kB / 0.9279 GB, free: 7.914 MB / 0.6387 GB Notification: Performance of postOpt createDAEmodeBDAE (simulation): time 0.02334/1.123, allocations: 9.419 MB / 0.9371 GB, free: 14.55 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobianDAE (simulation): time 0.01766/1.14, allocations: 8.894 MB / 0.9458 GB, free: 5.57 MB / 0.6544 GB Notification: Performance of postOpt setEvaluationStage (simulation): time 0.00637/1.147, allocations: 2.66 MB / 0.9484 GB, free: 2.914 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.001725/1.148, allocations: 0.98 MB / 0.9494 GB, free: 1.93 MB / 0.6544 GB Notification: Performance of Backend: time 9.92e-07/1.148, allocations: 0 / 0.9494 GB, free: 1.93 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.02676/1.175, allocations: 10.57 MB / 0.9597 GB, free: 7.32 MB / 0.67 GB Notification: Performance of SimCode: time 0.01084/1.186, allocations: 7.204 MB / 0.9667 GB, free: 92 kB / 0.67 GB Notification: Performance of Templates: time 0.488/1.674, allocations: 95.19 MB / 1.06 GB, free: 250.9 MB / 0.7481 GB make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.makefile (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe 2>&1)