Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.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/Buildings 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_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 0.008192/0.008192, allocations: 96.7 kB / 15.73 MB, free: 6.055 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002194/0.002194, allocations: 194.3 kB / 16.67 MB, free: 5.977 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.423/1.423, allocations: 222.9 MB / 240.4 MB, free: 4.281 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.925/2.925, allocations: 482.4 MB / 0.7548 GB, free: 10.9 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.00198/0.00198, allocations: 63.91 kB / 1.083 GB, free: 12.46 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2899/0.2919, allocations: 162.2 MB / 1.242 GB, free: 10.13 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD): time 0.554/0.846, allocations: 18.18 MB / 1.259 GB, free: 7.547 MB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.009512/0.8555, allocations: 6.806 MB / 1.266 GB, free: 3.207 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001695/0.8573, allocations: 58.5 kB / 1.266 GB, free: 3.199 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.003575/0.8609, allocations: 1.461 MB / 1.267 GB, free: 2.332 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.003883/0.8648, allocations: 1.422 MB / 1.269 GB, free: 1.539 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003123/0.8679, allocations: 1.268 MB / 1.27 GB, free: 0.8516 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.006342/0.8743, allocations: 5.432 MB / 1.275 GB, free: 14.56 MB / 1.014 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008408/0.8827, allocations: 7.083 MB / 1.282 GB, free: 11.8 MB / 1.014 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003692/0.8864, allocations: 2.342 MB / 1.285 GB, free: 10.75 MB / 1.014 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004552/0.891, allocations: 2.953 MB / 1.287 GB, free: 9.52 MB / 1.014 GB Notification: Performance of NFPackage.collectConstants: time 0.0009468/0.892, allocations: 0.515 MB / 1.288 GB, free: 9.516 MB / 1.014 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00267/0.8947, allocations: 1.26 MB / 1.289 GB, free: 9.238 MB / 1.014 GB Notification: Performance of NFScalarize.scalarize: time 0.002637/0.8973, allocations: 2.244 MB / 1.291 GB, free: 8.375 MB / 1.014 GB Notification: Performance of NFVerifyModel.verify: time 0.003175/0.9005, allocations: 2.165 MB / 1.293 GB, free: 6.977 MB / 1.014 GB Notification: Performance of NFConvertDAE.convert: time 0.01016/0.9107, allocations: 7.741 MB / 1.301 GB, free: 4.582 MB / 1.014 GB Notification: Performance of FrontEnd - DAE generated: time 5.591e-06/0.9107, allocations: 1.25 kB / 1.301 GB, free: 4.582 MB / 1.014 GB Notification: Performance of FrontEnd: time 1.933e-06/0.9107, allocations: 0 / 1.301 GB, free: 4.582 MB / 1.014 GB Notification: Performance of Transformations before backend: time 0.0001742/0.9109, allocations: 0 / 1.301 GB, free: 4.582 MB / 1.014 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 0.009285/0.9202, allocations: 3.869 MB / 1.305 GB, free: 2.402 MB / 1.014 GB Notification: Performance of prepare preOptimizeDAE: time 3.833e-05/0.9202, allocations: 13.19 kB / 1.305 GB, free: 2.398 MB / 1.014 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0009058/0.9211, allocations: 0.5412 MB / 1.305 GB, free: 2.105 MB / 1.014 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01382/0.935, allocations: 2.422 MB / 1.308 GB, free: 1.828 MB / 1.014 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005144/0.9401, allocations: 2.187 MB / 1.31 GB, free: 0.7109 MB / 1.014 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002434/0.9404, allocations: 270.4 kB / 1.31 GB, free: 0.5859 MB / 1.014 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001036/0.9414, allocations: 347.8 kB / 1.31 GB, free: 480 kB / 1.014 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01715/0.9586, allocations: 7.125 MB / 1.317 GB, free: 13.51 MB / 1.029 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.879e-05/0.9587, allocations: 1.406 kB / 1.317 GB, free: 13.51 MB / 1.029 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005442/0.9593, allocations: 151.2 kB / 1.318 GB, free: 13.39 MB / 1.029 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004902/0.9598, allocations: 335.9 kB / 1.318 GB, free: 13.29 MB / 1.029 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0171/0.9769, allocations: 7.039 MB / 1.325 GB, free: 9.742 MB / 1.029 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 0.03451/1.011, allocations: 26.45 MB / 1.351 GB, free: 2.84 MB / 1.045 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008725/1.02, allocations: 4.987 MB / 1.355 GB, free: 15.41 MB / 1.061 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00626/1.026, allocations: 2.611 MB / 1.358 GB, free: 14.09 MB / 1.061 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002794/1.027, allocations: 127.9 kB / 1.358 GB, free: 13.98 MB / 1.061 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.681e-05/1.027, allocations: 73.7 kB / 1.358 GB, free: 13.91 MB / 1.061 GB Notification: Performance of pre-optimization done (n=208): time 4.158e-06/1.027, allocations: 0 / 1.358 GB, free: 13.91 MB / 1.061 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 0.1135/1.14, allocations: 31.15 MB / 1.389 GB, free: 15.18 MB / 1.092 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001524/1.141, allocations: 243.6 kB / 1.389 GB, free: 14.89 MB / 1.092 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002497/1.143, allocations: 1.427 MB / 1.39 GB, free: 13.45 MB / 1.092 GB Notification: Performance of collectPreVariables (initialization): time 0.0005033/1.144, allocations: 69.7 kB / 1.39 GB, free: 13.38 MB / 1.092 GB Notification: Performance of collectInitialEqns (initialization): time 0.00119/1.145, allocations: 1.542 MB / 1.392 GB, free: 11.82 MB / 1.092 GB Notification: Performance of collectInitialBindings (initialization): time 0.001283/1.146, allocations: 0.9605 MB / 1.393 GB, free: 10.85 MB / 1.092 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001677/1.148, allocations: 0.6398 MB / 1.393 GB, free: 10.2 MB / 1.092 GB Notification: Performance of setup shared object (initialization): time 0.0001216/1.148, allocations: 301.1 kB / 1.394 GB, free: 9.906 MB / 1.092 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006699/1.155, allocations: 2.694 MB / 1.396 GB, free: 7.203 MB / 1.092 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007453/1.162, allocations: 3.575 MB / 1.4 GB, free: 3.246 MB / 1.092 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01416/1.176, allocations: 6.402 MB / 1.406 GB, free: 12.45 MB / 1.107 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.114e-05/1.176, allocations: 8 kB / 1.406 GB, free: 12.44 MB / 1.107 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 0.03101/1.207, allocations: 11.04 MB / 1.417 GB, free: 1.301 MB / 1.107 GB Notification: Performance of prepare postOptimizeDAE: time 4.022e-05/1.207, allocations: 16 kB / 1.417 GB, free: 1.285 MB / 1.107 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.754e-05/1.207, allocations: 28 kB / 1.417 GB, free: 1.258 MB / 1.107 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02159/1.229, allocations: 5.544 MB / 1.422 GB, free: 11.7 MB / 1.123 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004729/1.234, allocations: 0.9906 MB / 1.423 GB, free: 10.7 MB / 1.123 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04763/1.281, allocations: 28.22 MB / 1.451 GB, free: 14.04 MB / 1.154 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005062/1.286, allocations: 0.5732 MB / 1.451 GB, free: 13.46 MB / 1.154 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006222/1.287, allocations: 151.9 kB / 1.452 GB, free: 13.31 MB / 1.154 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009184/1.296, allocations: 3.991 MB / 1.455 GB, free: 9.312 MB / 1.154 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007298/1.304, allocations: 3.536 MB / 1.459 GB, free: 5.402 MB / 1.154 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.096/1.4, allocations: 24.63 MB / 1.483 GB, free: 12.25 MB / 1.186 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.522e-05/1.4, allocations: 8 kB / 1.483 GB, free: 12.25 MB / 1.186 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 0.02858/1.428, allocations: 10.55 MB / 1.493 GB, free: 1.551 MB / 1.186 GB Notification: Performance of prepare postOptimizeDAE: time 3.347e-05/1.428, allocations: 16 kB / 1.493 GB, free: 1.535 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.19e-05/1.428, allocations: 24 kB / 1.493 GB, free: 1.512 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01641/1.445, allocations: 4.321 MB / 1.497 GB, free: 13.17 MB / 1.201 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0049/1.45, allocations: 1.041 MB / 1.498 GB, free: 12.12 MB / 1.201 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0392/1.489, allocations: 27.11 MB / 1.525 GB, free: 308 kB / 1.217 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004938/1.494, allocations: 0.5576 MB / 1.526 GB, free: 15.74 MB / 1.232 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006114/1.495, allocations: 155.9 kB / 1.526 GB, free: 15.59 MB / 1.232 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 0.001111/1.496, allocations: 405.7 kB / 1.526 GB, free: 15.19 MB / 1.232 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006974/1.496, allocations: 202.7 kB / 1.526 GB, free: 14.99 MB / 1.232 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 0.0289/1.525, allocations: 10.18 MB / 1.536 GB, free: 4.734 MB / 1.232 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.087e-05/1.525, allocations: 28 kB / 1.536 GB, free: 4.707 MB / 1.232 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.631e-05/1.525, allocations: 12 kB / 1.536 GB, free: 4.695 MB / 1.232 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.799e-05/1.525, allocations: 19.88 kB / 1.536 GB, free: 4.676 MB / 1.232 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 0.03815/1.564, allocations: 16.27 MB / 1.552 GB, free: 4.16 MB / 1.248 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.092e-05/1.564, allocations: 8.375 kB / 1.552 GB, free: 4.152 MB / 1.248 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003656/1.567, allocations: 0.7411 MB / 1.553 GB, free: 3.41 MB / 1.248 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01969/1.587, allocations: 5.181 MB / 1.558 GB, free: 14.22 MB / 1.264 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000352/1.587, allocations: 75.95 kB / 1.558 GB, free: 14.14 MB / 1.264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04436/1.632, allocations: 27.25 MB / 1.585 GB, free: 2.387 MB / 1.279 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.21e-05/1.632, allocations: 12.09 kB / 1.585 GB, free: 2.375 MB / 1.279 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 0.02833/1.66, allocations: 10.11 MB / 1.594 GB, free: 8.016 MB / 1.295 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001746/1.662, allocations: 0.7298 MB / 1.595 GB, free: 7.266 MB / 1.295 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00067/1.663, allocations: 59.98 kB / 1.595 GB, free: 7.207 MB / 1.295 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003972/1.666, allocations: 0.507 MB / 1.596 GB, free: 6.699 MB / 1.295 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008018/1.667, allocations: 230.3 kB / 1.596 GB, free: 6.469 MB / 1.295 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002994/1.668, allocations: 95.95 kB / 1.596 GB, free: 6.375 MB / 1.295 GB Notification: Performance of sorting global known variables: time 0.001688/1.669, allocations: 0.9723 MB / 1.597 GB, free: 5.398 MB / 1.295 GB Notification: Performance of sort global known variables: time 2.81e-07/1.669, allocations: 4 kB / 1.597 GB, free: 5.395 MB / 1.295 GB Notification: Performance of remove unused functions: time 0.006281/1.676, allocations: 1.84 MB / 1.599 GB, free: 3.555 MB / 1.295 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 0.02796/1.704, allocations: 10.75 MB / 1.609 GB, free: 8.547 MB / 1.311 GB Notification: Performance of simCode: created initialization part: time 0.03243/1.736, allocations: 12.48 MB / 1.622 GB, free: 11.96 MB / 1.326 GB Notification: Performance of simCode: created event and clocks part: time 1.039e-05/1.736, allocations: 1.875 kB / 1.622 GB, free: 11.96 MB / 1.326 GB Notification: Performance of simCode: created simulation system equations: time 0.01202/1.748, allocations: 4.44 MB / 1.626 GB, free: 7.469 MB / 1.326 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002825/1.751, allocations: 277 kB / 1.626 GB, free: 7.207 MB / 1.326 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 simCode: created linear, non-linear and system jacobian parts: time 0.1058/1.857, allocations: 41.72 MB / 1.667 GB, free: 12.18 MB / 1.373 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003992/1.861, allocations: 2.836 MB / 1.67 GB, free: 9.309 MB / 1.373 GB Notification: Performance of simCode: alias equations: time 0.004561/1.865, allocations: 1.653 MB / 1.671 GB, free: 7.652 MB / 1.373 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001965/1.867, allocations: 1.207 MB / 1.672 GB, free: 6.445 MB / 1.373 GB Notification: Performance of SimCode: time 6.81e-07/1.867, allocations: 0 / 1.672 GB, free: 6.445 MB / 1.373 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2041/2.071, allocations: 102.5 MB / 1.773 GB, free: 336 kB / 1.467 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.95/18.03, allocations: 15.52 kB / 1.773 GB, free: 320 kB / 1.467 GB (rm -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD.fmu > Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1)