Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_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 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/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_10_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_10_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 0.007646/0.007646, allocations: 99.83 kB / 15.73 MB, free: 6.012 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001811/0.001811, allocations: 193.5 kB / 16.67 MB, free: 5.93 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 / 240.4 MB, free: 15.15 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.489/2.489, allocations: 437 MB / 0.7105 GB, free: 4.41 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.00146/0.00146, allocations: 63.91 kB / 1.018 GB, free: 9.797 MB / 0.795 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8194/0.8209, allocations: 151.6 MB / 1.166 GB, free: 3.746 MB / 0.8887 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD): time 0.02251/0.8434, allocations: 18.18 MB / 1.184 GB, free: 1.5 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.01248/0.856, allocations: 6.805 MB / 1.191 GB, free: 10.67 MB / 0.92 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002039/0.858, allocations: 59.81 kB / 1.191 GB, free: 10.61 MB / 0.92 GB Notification: Performance of NFTyping.typeComponents: time 0.004186/0.8623, allocations: 1.464 MB / 1.192 GB, free: 9.145 MB / 0.92 GB Notification: Performance of NFTyping.typeBindings: time 0.004012/0.8663, allocations: 1.443 MB / 1.194 GB, free: 7.695 MB / 0.92 GB Notification: Performance of NFTyping.typeClassSections: time 0.00333/0.8697, allocations: 1.262 MB / 1.195 GB, free: 6.434 MB / 0.92 GB Notification: Performance of NFFlatten.flatten: time 0.006226/0.8759, allocations: 5.457 MB / 1.2 GB, free: 0.9648 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009539/0.8855, allocations: 7.058 MB / 1.207 GB, free: 9.797 MB / 0.9356 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004477/0.89, allocations: 2.365 MB / 1.209 GB, free: 7.426 MB / 0.9356 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005543/0.8956, allocations: 2.957 MB / 1.212 GB, free: 4.461 MB / 0.9356 GB Notification: Performance of NFPackage.collectConstants: time 0.002238/0.8978, allocations: 0.5078 MB / 1.213 GB, free: 3.953 MB / 0.9356 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00403/0.9019, allocations: 1.26 MB / 1.214 GB, free: 2.691 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.003638/0.9056, allocations: 2.238 MB / 1.216 GB, free: 460 kB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.00493/0.9105, allocations: 2.171 MB / 1.218 GB, free: 14.27 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.011/0.9215, allocations: 7.74 MB / 1.226 GB, free: 6.508 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 9.127e-06/0.9216, allocations: 0 / 1.226 GB, free: 6.508 MB / 0.9512 GB Notification: Performance of FrontEnd: time 2.745e-06/0.9216, allocations: 0 / 1.226 GB, free: 6.508 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 0.0003537/0.922, allocations: 0 / 1.226 GB, free: 6.508 MB / 0.9512 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 0.01335/0.9353, allocations: 3.876 MB / 1.23 GB, free: 2.566 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 5.091e-05/0.9354, allocations: 16.92 kB / 1.23 GB, free: 2.551 MB / 0.9512 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001957/0.9374, allocations: 0.5384 MB / 1.23 GB, free: 2.004 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01443/0.9518, allocations: 2.417 MB / 1.232 GB, free: 15.58 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006311/0.9581, allocations: 2.191 MB / 1.235 GB, free: 13.34 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002758/0.9585, allocations: 275.2 kB / 1.235 GB, free: 13.07 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001506/0.96, allocations: 340 kB / 1.235 GB, free: 12.74 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01786/0.9778, allocations: 7.122 MB / 1.242 GB, free: 5.516 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001399/0.978, allocations: 7.938 kB / 1.242 GB, free: 5.508 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001205/0.9792, allocations: 148 kB / 1.242 GB, free: 5.363 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005129/0.9798, allocations: 330 kB / 1.243 GB, free: 5.039 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01836/0.9981, allocations: 7.039 MB / 1.249 GB, free: 13.99 MB / 0.9825 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 0.03881/1.037, allocations: 26.46 MB / 1.275 GB, free: 1.352 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00862/1.046, allocations: 4.983 MB / 1.28 GB, free: 12.07 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006194/1.052, allocations: 2.616 MB / 1.283 GB, free: 9.43 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003103/1.052, allocations: 131 kB / 1.283 GB, free: 9.281 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.682e-05/1.052, allocations: 68.48 kB / 1.283 GB, free: 9.207 MB / 1.014 GB Notification: Performance of pre-optimization done (n=208): time 4.278e-06/1.052, allocations: 0 / 1.283 GB, free: 9.207 MB / 1.014 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 0.1106/1.163, allocations: 31.14 MB / 1.313 GB, free: 10.01 MB / 1.045 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001322/1.163, allocations: 235.6 kB / 1.314 GB, free: 9.727 MB / 1.045 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002515/1.166, allocations: 1.431 MB / 1.315 GB, free: 8.285 MB / 1.045 GB Notification: Performance of collectPreVariables (initialization): time 0.0006528/1.166, allocations: 69.7 kB / 1.315 GB, free: 8.211 MB / 1.045 GB Notification: Performance of collectInitialEqns (initialization): time 0.001438/1.168, allocations: 1.534 MB / 1.317 GB, free: 6.66 MB / 1.045 GB Notification: Performance of collectInitialBindings (initialization): time 0.001644/1.169, allocations: 0.9722 MB / 1.317 GB, free: 5.68 MB / 1.045 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001853/1.171, allocations: 0.6359 MB / 1.318 GB, free: 5.035 MB / 1.045 GB Notification: Performance of setup shared object (initialization): time 0.0001063/1.171, allocations: 309.1 kB / 1.318 GB, free: 4.73 MB / 1.045 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006281/1.178, allocations: 2.69 MB / 1.321 GB, free: 2.031 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007012/1.185, allocations: 3.571 MB / 1.325 GB, free: 14.08 MB / 1.061 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01298/1.198, allocations: 6.402 MB / 1.331 GB, free: 7.281 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.413e-05/1.198, allocations: 8 kB / 1.331 GB, free: 7.273 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=410) (initialization): time 0.02952/1.227, allocations: 11.04 MB / 1.342 GB, free: 12.13 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 4.49e-05/1.227, allocations: 16 kB / 1.342 GB, free: 12.11 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.461e-05/1.227, allocations: 27.98 kB / 1.342 GB, free: 12.09 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02049/1.248, allocations: 5.544 MB / 1.347 GB, free: 6.527 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004573/1.252, allocations: 0.9868 MB / 1.348 GB, free: 5.539 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04297/1.295, allocations: 28.22 MB / 1.376 GB, free: 8.859 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004678/1.3, allocations: 0.5694 MB / 1.376 GB, free: 8.289 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006136/1.301, allocations: 155.9 kB / 1.376 GB, free: 8.137 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008159/1.309, allocations: 3.991 MB / 1.38 GB, free: 4.137 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006686/1.316, allocations: 3.536 MB / 1.384 GB, free: 224 kB / 1.107 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09099/1.407, allocations: 24.63 MB / 1.408 GB, free: 7.074 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.698e-05/1.407, allocations: 8 kB / 1.408 GB, free: 7.066 MB / 1.139 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 0.02676/1.434, allocations: 10.54 MB / 1.418 GB, free: 12.38 MB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 3.167e-05/1.434, allocations: 16 kB / 1.418 GB, free: 12.37 MB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.844e-05/1.434, allocations: 28 kB / 1.418 GB, free: 12.34 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0157/1.449, allocations: 4.325 MB / 1.422 GB, free: 7.996 MB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004747/1.454, allocations: 1.041 MB / 1.423 GB, free: 6.953 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0351/1.489, allocations: 27.12 MB / 1.45 GB, free: 11.11 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004573/1.494, allocations: 0.5615 MB / 1.45 GB, free: 10.55 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005785/1.494, allocations: 155.9 kB / 1.45 GB, free: 10.39 MB / 1.186 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 0.001128/1.496, allocations: 390.2 kB / 1.451 GB, free: 10.01 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007533/1.496, allocations: 206.7 kB / 1.451 GB, free: 9.805 MB / 1.186 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 0.02706/1.523, allocations: 10.17 MB / 1.461 GB, free: 15.56 MB / 1.201 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.435e-05/1.523, allocations: 28.38 kB / 1.461 GB, free: 15.53 MB / 1.201 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.862e-05/1.524, allocations: 12 kB / 1.461 GB, free: 15.52 MB / 1.201 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.887e-05/1.524, allocations: 15.95 kB / 1.461 GB, free: 15.5 MB / 1.201 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 0.03817/1.562, allocations: 16.28 MB / 1.477 GB, free: 14.98 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.8e-05/1.562, allocations: 8 kB / 1.477 GB, free: 14.97 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003599/1.565, allocations: 0.7333 MB / 1.478 GB, free: 14.24 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01826/1.584, allocations: 5.177 MB / 1.483 GB, free: 9.047 MB / 1.217 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005133/1.584, allocations: 71.95 kB / 1.483 GB, free: 8.977 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03968/1.624, allocations: 27.27 MB / 1.509 GB, free: 13.2 MB / 1.248 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.057e-05/1.624, allocations: 12.03 kB / 1.509 GB, free: 13.19 MB / 1.248 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 0.02577/1.65, allocations: 10.1 MB / 1.519 GB, free: 2.852 MB / 1.248 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002097/1.652, allocations: 0.7337 MB / 1.52 GB, free: 2.098 MB / 1.248 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007074/1.653, allocations: 59.98 kB / 1.52 GB, free: 2.039 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003914/1.657, allocations: 0.5031 MB / 1.52 GB, free: 1.535 MB / 1.248 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008558/1.657, allocations: 226.4 kB / 1.521 GB, free: 1.309 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003079/1.658, allocations: 91.95 kB / 1.521 GB, free: 1.219 MB / 1.248 GB Notification: Performance of sorting global known variables: time 0.001648/1.659, allocations: 0.9762 MB / 1.522 GB, free: 244 kB / 1.248 GB Notification: Performance of sort global known variables: time 1.3e-07/1.659, allocations: 0 / 1.522 GB, free: 244 kB / 1.248 GB Notification: Performance of remove unused functions: time 0.006745/1.666, allocations: 1.84 MB / 1.524 GB, free: 14.39 MB / 1.264 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 0.02614/1.692, allocations: 10.77 MB / 1.534 GB, free: 3.367 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.03012/1.722, allocations: 12.47 MB / 1.546 GB, free: 6.781 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 1.426e-05/1.723, allocations: 5.812 kB / 1.546 GB, free: 6.777 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.01165/1.734, allocations: 4.436 MB / 1.551 GB, free: 2.297 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002852/1.737, allocations: 281.1 kB / 1.551 GB, free: 2.031 MB / 1.279 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 0.7108/2.448, allocations: 41.71 MB / 1.592 GB, free: 349.8 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003079/2.451, allocations: 2.837 MB / 1.594 GB, free: 347 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.004096/2.455, allocations: 1.653 MB / 1.596 GB, free: 345.5 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001912/2.457, allocations: 1.206 MB / 1.597 GB, free: 344.3 MB / 1.279 GB Notification: Performance of SimCode: time 1.102e-06/2.457, allocations: 0 / 1.597 GB, free: 344.3 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1317/2.589, allocations: 102.5 MB / 1.697 GB, free: 242.2 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.83/18.41, allocations: 0.875 kB / 1.697 GB, free: 242.2 MB / 1.279 GB (rm -f Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & python3 -m fmpy simulate --output-file Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD.fmu > Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1)