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 0.001291/0.001291, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001292/0.001292, allocations: 195.8 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.403/1.403, allocations: 222.9 MB / 240.2 MB, free: 4.391 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002537/0.002537, allocations: 290.5 kB / 290.7 MB, free: 1.988 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.161/1.161, allocations: 178.6 MB / 0.5073 GB, free: 4.57 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002656/0.002656, allocations: 97.14 kB / 0.6066 GB, free: 24.64 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1568/0.1595, allocations: 89.14 MB / 0.6936 GB, free: 4.191 MB / 494.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02499/0.1845, allocations: 18.26 MB / 0.7115 GB, free: 1.867 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01224/0.1968, allocations: 6.809 MB / 0.7181 GB, free: 11.04 MB / 0.5137 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001791/0.1987, allocations: 55.88 kB / 0.7182 GB, free: 10.98 MB / 0.5137 GB Notification: Performance of NFTyping.typeComponents: time 0.004177/0.2029, allocations: 1.475 MB / 0.7196 GB, free: 9.504 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.003595/0.2065, allocations: 1.428 MB / 0.721 GB, free: 8.07 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.003322/0.2098, allocations: 1.278 MB / 0.7222 GB, free: 6.793 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.006549/0.2164, allocations: 5.472 MB / 0.7276 GB, free: 1.309 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009171/0.2256, allocations: 7.233 MB / 0.7347 GB, free: 9.969 MB / 0.5294 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003567/0.2292, allocations: 2.357 MB / 0.737 GB, free: 7.605 MB / 0.5294 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004769/0.234, allocations: 2.961 MB / 0.7398 GB, free: 4.637 MB / 0.5294 GB Notification: Performance of NFPackage.collectConstants: time 0.001213/0.2352, allocations: 0.5117 MB / 0.7403 GB, free: 4.125 MB / 0.5294 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002767/0.238, allocations: 1.28 MB / 0.7416 GB, free: 2.844 MB / 0.5294 GB Notification: Performance of NFScalarize.scalarize: time 0.003073/0.2411, allocations: 2.246 MB / 0.7438 GB, free: 0.5938 MB / 0.5294 GB Notification: Performance of NFVerifyModel.verify: time 0.003396/0.2445, allocations: 2.191 MB / 0.7459 GB, free: 14.39 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.009705/0.2542, allocations: 7.732 MB / 0.7535 GB, free: 6.641 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 1.978e-05/0.2543, allocations: 4 kB / 0.7535 GB, free: 6.637 MB / 0.545 GB Notification: Performance of FrontEnd: time 2.295e-06/0.2543, allocations: 0 / 0.7535 GB, free: 6.637 MB / 0.545 GB Notification: Performance of Transformations before backend: time 0.0002629/0.2546, allocations: 0 / 0.7535 GB, free: 6.637 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 0.01155/0.2661, allocations: 3.823 MB / 0.7572 GB, free: 2.754 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 5.258e-05/0.2662, allocations: 8.031 kB / 0.7572 GB, free: 2.746 MB / 0.545 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001919/0.2681, allocations: 0.5503 MB / 0.7578 GB, free: 2.188 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.3276/0.5957, allocations: 2.412 MB / 0.7601 GB, free: 61.89 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005662/0.6014, allocations: 2.16 MB / 0.7622 GB, free: 61.36 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003568/0.6018, allocations: 274.6 kB / 0.7625 GB, free: 61.24 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001872/0.6037, allocations: 347 kB / 0.7628 GB, free: 61.14 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01985/0.6236, allocations: 7.168 MB / 0.7698 GB, free: 58.77 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.911e-05/0.6237, allocations: 7.062 kB / 0.7698 GB, free: 58.77 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004485/0.6241, allocations: 146.6 kB / 0.77 GB, free: 58.66 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005116/0.6246, allocations: 335.9 kB / 0.7703 GB, free: 58.62 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01686/0.6415, allocations: 7.046 MB / 0.7772 GB, free: 56.61 MB / 0.545 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 0.03236/0.6739, allocations: 26.73 MB / 0.8033 GB, free: 34.84 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008048/0.682, allocations: 4.993 MB / 0.8081 GB, free: 31.44 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005633/0.6877, allocations: 2.595 MB / 0.8107 GB, free: 30.14 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002407/0.6879, allocations: 137 kB / 0.8108 GB, free: 30.04 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.874e-05/0.688, allocations: 64.19 kB / 0.8109 GB, free: 29.97 MB / 0.545 GB Notification: Performance of pre-optimization done (n=208): time 3.827e-06/0.688, allocations: 0 / 0.8109 GB, free: 29.97 MB / 0.545 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 0.09565/0.7836, allocations: 30.96 MB / 0.8411 GB, free: 1.676 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.138e-05/0.7837, allocations: 243.6 kB / 0.8413 GB, free: 1.391 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001957/0.7857, allocations: 1.461 MB / 0.8428 GB, free: 15.92 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 0.0004947/0.7862, allocations: 73.7 kB / 0.8428 GB, free: 15.84 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.001154/0.7874, allocations: 1.504 MB / 0.8443 GB, free: 14.33 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 0.001307/0.7887, allocations: 0.9142 MB / 0.8452 GB, free: 13.42 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001248/0.7899, allocations: 0.6319 MB / 0.8458 GB, free: 12.78 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 0.0001424/0.7901, allocations: 301.1 kB / 0.8461 GB, free: 12.48 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006436/0.7965, allocations: 2.69 MB / 0.8487 GB, free: 9.785 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007806/0.8044, allocations: 3.575 MB / 0.8522 GB, free: 5.828 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01494/0.8193, allocations: 6.399 MB / 0.8585 GB, free: 15.03 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.305e-05/0.8194, allocations: 8 kB / 0.8585 GB, free: 15.02 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.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 0.03119/0.8506, allocations: 11.03 MB / 0.8692 GB, free: 3.898 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 4.029e-05/0.8507, allocations: 16 kB / 0.8693 GB, free: 3.883 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.468e-05/0.8507, allocations: 24 kB / 0.8693 GB, free: 3.859 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02101/0.8717, allocations: 5.56 MB / 0.8747 GB, free: 14.29 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004657/0.8764, allocations: 0.9945 MB / 0.8757 GB, free: 13.29 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.05085/0.9273, allocations: 28.19 MB / 0.9032 GB, free: 0.6641 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004836/0.9322, allocations: 0.5692 MB / 0.9038 GB, free: 96 kB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006536/0.9328, allocations: 155.9 kB / 0.9039 GB, free: 15.94 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008805/0.9417, allocations: 3.983 MB / 0.9078 GB, free: 11.95 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007888/0.9496, allocations: 3.528 MB / 0.9113 GB, free: 8.043 MB / 0.6231 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09509/1.045, allocations: 24.68 MB / 0.9354 GB, free: 14.86 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.72e-05/1.045, allocations: 8 kB / 0.9354 GB, free: 14.85 MB / 0.6544 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 0.02857/1.073, allocations: 10.53 MB / 0.9456 GB, free: 4.184 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 3.881e-05/1.073, allocations: 17.88 kB / 0.9457 GB, free: 4.168 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.521e-05/1.073, allocations: 28.56 kB / 0.9457 GB, free: 4.141 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01617/1.09, allocations: 4.342 MB / 0.9499 GB, free: 15.79 MB / 0.67 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004839/1.094, allocations: 1.037 MB / 0.9509 GB, free: 14.75 MB / 0.67 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0416/1.136, allocations: 27.13 MB / 0.9774 GB, free: 2.898 MB / 0.6856 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004733/1.141, allocations: 0.5613 MB / 0.978 GB, free: 2.34 MB / 0.6856 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006428/1.142, allocations: 151.9 kB / 0.9781 GB, free: 2.191 MB / 0.6856 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001205/1.143, allocations: 395.9 kB / 0.9785 GB, free: 1.797 MB / 0.6856 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007908/1.144, allocations: 205.5 kB / 0.9787 GB, free: 1.594 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 postOpt wrapFunctionCalls (simulation): time 0.02927/1.173, allocations: 10.17 MB / 0.9886 GB, free: 7.359 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.285e-05/1.173, allocations: 28 kB / 0.9887 GB, free: 7.332 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.926e-05/1.173, allocations: 12 kB / 0.9887 GB, free: 7.32 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.246e-05/1.173, allocations: 19.88 kB / 0.9887 GB, free: 7.301 MB / 0.7012 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 0.0412/1.214, allocations: 16.31 MB / 1.005 GB, free: 6.742 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.046e-05/1.214, allocations: 8.156 kB / 1.005 GB, free: 6.734 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003799/1.218, allocations: 0.741 MB / 1.005 GB, free: 5.992 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02007/1.238, allocations: 5.196 MB / 1.01 GB, free: 0.7812 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005685/1.239, allocations: 75.95 kB / 1.01 GB, free: 0.707 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04559/1.284, allocations: 27.26 MB / 1.037 GB, free: 4.949 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.793e-05/1.284, allocations: 16.02 kB / 1.037 GB, free: 4.934 MB / 0.7481 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 0.3835/1.668, allocations: 10.09 MB / 1.047 GB, free: 244.9 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001823/1.67, allocations: 0.7234 MB / 1.048 GB, free: 244.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000881/1.671, allocations: 56.33 kB / 1.048 GB, free: 244.8 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004217/1.675, allocations: 0.5048 MB / 1.048 GB, free: 244.8 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001092/1.676, allocations: 224.3 kB / 1.048 GB, free: 244.8 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004989/1.677, allocations: 92.28 kB / 1.049 GB, free: 244.8 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.002158/1.679, allocations: 1.006 MB / 1.05 GB, free: 244.7 MB / 0.7481 GB Notification: Performance of sort global known variables: time 1.31e-07/1.679, allocations: 0.9062 kB / 1.05 GB, free: 244.7 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.007628/1.686, allocations: 1.854 MB / 1.051 GB, free: 244.7 MB / 0.7481 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 0.02703/1.713, allocations: 10.76 MB / 1.062 GB, free: 243 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.03295/1.746, allocations: 14.38 MB / 1.076 GB, free: 238.8 MB / 0.7481 GB Notification: Performance of simCode: created event and clocks part: time 1.56e-05/1.746, allocations: 1.125 kB / 1.076 GB, free: 238.8 MB / 0.7481 GB Notification: Performance of simCode: created simulation system equations: time 0.009867/1.756, allocations: 4.415 MB / 1.08 GB, free: 237.2 MB / 0.7481 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002751/1.759, allocations: 289.1 kB / 1.08 GB, free: 237.1 MB / 0.7481 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 0.09055/1.85, allocations: 44.2 MB / 1.124 GB, free: 200.2 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003725/1.853, allocations: 2.85 MB / 1.126 GB, free: 197.3 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.004631/1.858, allocations: 1.659 MB / 1.128 GB, free: 195.7 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001633/1.86, allocations: 1.222 MB / 1.129 GB, free: 194.5 MB / 0.7481 GB Notification: Performance of SimCode: time 1.173e-06/1.86, allocations: 4 kB / 1.129 GB, free: 194.5 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1437/2.003, allocations: 102.1 MB / 1.229 GB, free: 92.9 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.66/15.66, allocations: 11.84 kB / 1.229 GB, free: 92.89 MB / 0.7481 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)