Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.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.UnbalancedStepUp.YD,fileNamePrefix="Buildings_9_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,fileNamePrefix="Buildings_9_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_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 0.008621/0.008621, allocations: 101.9 kB / 15.73 MB, free: 6.059 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002233/0.002233, allocations: 188.7 kB / 16.67 MB, free: 5.969 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.35/1.35, allocations: 222.9 MB / 240.4 MB, free: 15.16 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.15/2.15, allocations: 390.3 MB / 0.6648 GB, free: 0.6172 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.001372/0.001372, allocations: 63.91 kB / 0.9505 GB, free: 8.008 MB / 0.7325 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7693/0.7706, allocations: 140.4 MB / 1.088 GB, free: 5.121 MB / 0.8575 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.02423/0.7949, allocations: 18.27 MB / 1.105 GB, free: 8.957 MB / 0.8731 GB Notification: Performance of NFInst.instExpressions: time 0.01293/0.8079, allocations: 6.874 MB / 1.112 GB, free: 4.27 MB / 0.8731 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002374/0.8103, allocations: 61.31 kB / 1.112 GB, free: 4.258 MB / 0.8731 GB Notification: Performance of NFTyping.typeComponents: time 0.004459/0.8148, allocations: 1.46 MB / 1.114 GB, free: 3.387 MB / 0.8731 GB Notification: Performance of NFTyping.typeBindings: time 0.004686/0.8195, allocations: 1.467 MB / 1.115 GB, free: 2.562 MB / 0.8731 GB Notification: Performance of NFTyping.typeClassSections: time 0.004061/0.8236, allocations: 1.269 MB / 1.116 GB, free: 1.879 MB / 0.8731 GB Notification: Performance of NFFlatten.flatten: time 0.007904/0.8316, allocations: 5.466 MB / 1.122 GB, free: 15.57 MB / 0.8887 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00987/0.8415, allocations: 7.115 MB / 1.129 GB, free: 12.77 MB / 0.8887 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005461/0.847, allocations: 2.382 MB / 1.131 GB, free: 11.7 MB / 0.8887 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006462/0.8535, allocations: 2.981 MB / 1.134 GB, free: 10.45 MB / 0.8887 GB Notification: Performance of NFPackage.collectConstants: time 0.001903/0.8554, allocations: 0.5147 MB / 1.134 GB, free: 10.45 MB / 0.8887 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004072/0.8595, allocations: 1.267 MB / 1.136 GB, free: 10.17 MB / 0.8887 GB Notification: Performance of NFScalarize.scalarize: time 0.004293/0.8638, allocations: 2.248 MB / 1.138 GB, free: 9.309 MB / 0.8887 GB Notification: Performance of NFVerifyModel.verify: time 0.005082/0.8689, allocations: 2.188 MB / 1.14 GB, free: 7.895 MB / 0.8887 GB Notification: Performance of NFConvertDAE.convert: time 0.01433/0.8833, allocations: 7.8 MB / 1.147 GB, free: 4.969 MB / 0.8887 GB Notification: Performance of FrontEnd - DAE generated: time 6.071e-06/0.8833, allocations: 0 / 1.147 GB, free: 4.969 MB / 0.8887 GB Notification: Performance of FrontEnd: time 1.803e-06/0.8833, allocations: 0 / 1.147 GB, free: 4.969 MB / 0.8887 GB Notification: Performance of Transformations before backend: time 0.0002767/0.8836, allocations: 5.156 kB / 1.147 GB, free: 4.965 MB / 0.8887 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 0.01486/0.8985, allocations: 3.911 MB / 1.151 GB, free: 2.309 MB / 0.8887 GB Notification: Performance of prepare preOptimizeDAE: time 4.91e-05/0.8985, allocations: 9.594 kB / 1.151 GB, free: 2.309 MB / 0.8887 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001855/0.9004, allocations: 0.5454 MB / 1.152 GB, free: 1.922 MB / 0.8887 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0145/0.9149, allocations: 2.431 MB / 1.154 GB, free: 0.75 MB / 0.8887 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007449/0.9224, allocations: 2.199 MB / 1.156 GB, free: 15.37 MB / 0.9044 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003075/0.9227, allocations: 270.3 kB / 1.157 GB, free: 15.25 MB / 0.9044 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002211/0.9249, allocations: 351.4 kB / 1.157 GB, free: 15.13 MB / 0.9044 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02133/0.9463, allocations: 7.153 MB / 1.164 GB, free: 11.06 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.163e-05/0.9464, allocations: 6.094 kB / 1.164 GB, free: 11.05 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000704/0.9471, allocations: 151.5 kB / 1.164 GB, free: 10.94 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005651/0.9477, allocations: 345.1 kB / 1.164 GB, free: 10.83 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01895/0.9666, allocations: 7.041 MB / 1.171 GB, free: 7.281 MB / 0.9044 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03825/1.005, allocations: 26.53 MB / 1.197 GB, free: 11.3 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008308/1.013, allocations: 5 MB / 1.202 GB, free: 5.996 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006049/1.019, allocations: 2.62 MB / 1.205 GB, free: 3.359 MB / 0.9356 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002567/1.02, allocations: 135 kB / 1.205 GB, free: 3.211 MB / 0.9356 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.081e-05/1.02, allocations: 56.5 kB / 1.205 GB, free: 3.145 MB / 0.9356 GB Notification: Performance of pre-optimization done (n=208): time 3.486e-06/1.02, allocations: 0 / 1.205 GB, free: 3.145 MB / 0.9356 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv2.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=271): time 0.1059/1.126, allocations: 31.2 MB / 1.235 GB, free: 3.875 MB / 0.9669 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000112/1.126, allocations: 235.6 kB / 1.236 GB, free: 3.598 MB / 0.9669 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002279/1.128, allocations: 1.477 MB / 1.237 GB, free: 2.113 MB / 0.9669 GB Notification: Performance of collectPreVariables (initialization): time 0.0006599/1.129, allocations: 65.7 kB / 1.237 GB, free: 2.043 MB / 0.9669 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009155/1.13, allocations: 1.55 MB / 1.239 GB, free: 488 kB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.001101/1.131, allocations: 0.9644 MB / 1.239 GB, free: 15.5 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001162/1.132, allocations: 0.6321 MB / 1.24 GB, free: 14.86 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 9.519e-05/1.132, allocations: 309 kB / 1.24 GB, free: 14.56 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006023/1.138, allocations: 2.686 MB / 1.243 GB, free: 11.86 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006733/1.145, allocations: 3.571 MB / 1.247 GB, free: 7.914 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01247/1.157, allocations: 6.395 MB / 1.253 GB, free: 1.121 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.696e-05/1.157, allocations: 8 kB / 1.253 GB, free: 1.113 MB / 0.9825 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv2.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization): time 0.0288/1.186, allocations: 11.01 MB / 1.264 GB, free: 6.004 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 4.473e-05/1.186, allocations: 20 kB / 1.264 GB, free: 5.984 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.379e-05/1.186, allocations: 24 kB / 1.264 GB, free: 5.961 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01986/1.206, allocations: 5.564 MB / 1.269 GB, free: 388 kB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004646/1.211, allocations: 0.9946 MB / 1.27 GB, free: 15.38 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04276/1.254, allocations: 28.19 MB / 1.298 GB, free: 2.73 MB / 1.029 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005181/1.259, allocations: 0.5693 MB / 1.298 GB, free: 2.16 MB / 1.029 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006625/1.26, allocations: 155.9 kB / 1.298 GB, free: 2.008 MB / 1.029 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008322/1.268, allocations: 3.98 MB / 1.302 GB, free: 14.02 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006289/1.274, allocations: 3.532 MB / 1.306 GB, free: 10.11 MB / 1.045 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08883/1.363, allocations: 24.63 MB / 1.33 GB, free: 0.9688 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.782e-05/1.363, allocations: 4 kB / 1.33 GB, free: 0.9648 MB / 1.061 GB Warning: The linear system: 1 : transformer.conv1.V2[2] = line2.v3_n[2] - line2.v1_n[2] 2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] 3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2] 4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v1_n[2] ; line2.v1_p[2] ; line2.v3_p[2] ; line2.v3_n[2] ] = [ -transformer.conv1.V2[2] ; line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ; -loadRL.load3.v[2] ; line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1] ] might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 3 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ] = [ -loadRL.load1.v[1] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -transformer.conv2.V2[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02863/1.392, allocations: 10.54 MB / 1.34 GB, free: 6.281 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 3.461e-05/1.392, allocations: 19.94 kB / 1.34 GB, free: 6.262 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.584e-05/1.392, allocations: 28 kB / 1.34 GB, free: 6.234 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01498/1.407, allocations: 4.318 MB / 1.344 GB, free: 1.898 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004799/1.412, allocations: 1.049 MB / 1.345 GB, free: 0.8477 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03581/1.448, allocations: 27.16 MB / 1.372 GB, free: 4.961 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005141/1.453, allocations: 0.5499 MB / 1.372 GB, free: 4.41 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007892/1.454, allocations: 151.9 kB / 1.372 GB, free: 4.262 MB / 1.107 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i1[2]) - line2.i3[2] - line2.i2[2] 0.0 = (-line2.i1[1]) - line2.i3[1] - line2.i2[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001442/1.455, allocations: 399.8 kB / 1.373 GB, free: 3.863 MB / 1.107 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007121/1.456, allocations: 214.7 kB / 1.373 GB, free: 3.652 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 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -transformer.conv2.V2[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -loadRL.load1.v[1] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02634/1.482, allocations: 10.16 MB / 1.383 GB, free: 9.41 MB / 1.123 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.378e-05/1.482, allocations: 28 kB / 1.383 GB, free: 9.383 MB / 1.123 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.732e-05/1.482, allocations: 12 kB / 1.383 GB, free: 9.371 MB / 1.123 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.037e-05/1.482, allocations: 19.94 kB / 1.383 GB, free: 9.352 MB / 1.123 GB Warning: The linear system: 1 : 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] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : 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] 4 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , -1.0 , 1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; 1.0 , -1.0 , 0.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v1_n[1] ; line2.v1_p[1] ; line2.v2_p[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] ; line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -transformer.conv2.V2[1] ] 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 0.03655/1.519, allocations: 16.32 MB / 1.399 GB, free: 8.789 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.406e-05/1.519, allocations: 8.375 kB / 1.399 GB, free: 8.781 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003611/1.522, allocations: 0.7295 MB / 1.4 GB, free: 8.051 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01799/1.54, allocations: 5.177 MB / 1.405 GB, free: 2.859 MB / 1.139 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005433/1.541, allocations: 79.95 kB / 1.405 GB, free: 2.781 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03852/1.58, allocations: 27.25 MB / 1.431 GB, free: 7.031 MB / 1.17 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.004e-05/1.58, allocations: 12.03 kB / 1.431 GB, free: 7.02 MB / 1.17 GB Warning: The linear system: 1 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ] = [ line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv2.V2[1] ; 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] ] might be structurally or numerically singular for variable line2.v2_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02549/1.605, allocations: 10.14 MB / 1.441 GB, free: 12.63 MB / 1.186 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002471/1.608, allocations: 0.7415 MB / 1.442 GB, free: 11.87 MB / 1.186 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001022/1.609, allocations: 56 kB / 1.442 GB, free: 11.81 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004127/1.613, allocations: 0.4992 MB / 1.443 GB, free: 11.31 MB / 1.186 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008147/1.614, allocations: 230.4 kB / 1.443 GB, free: 11.09 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000262/1.614, allocations: 91.95 kB / 1.443 GB, free: 11 MB / 1.186 GB Notification: Performance of sorting global known variables: time 0.00167/1.616, allocations: 1.001 MB / 1.444 GB, free: 9.996 MB / 1.186 GB Notification: Performance of sort global known variables: time 1.423e-06/1.616, allocations: 0 / 1.444 GB, free: 9.996 MB / 1.186 GB Notification: Performance of remove unused functions: time 0.007298/1.623, allocations: 1.859 MB / 1.446 GB, free: 8.137 MB / 1.186 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 : 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] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : 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] 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.v2_p[1] ; line2.v1_p[1] ; line2.v1_n[1] ; line2.v2_n[1] ] = [ line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv2.V2[1] ; 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] ] might be structurally or numerically singular for variable line2.v2_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 0.0267/1.65, allocations: 10.81 MB / 1.456 GB, free: 13.07 MB / 1.201 GB Notification: Performance of simCode: created initialization part: time 0.04522/1.695, allocations: 12.47 MB / 1.468 GB, free: 0.4922 MB / 1.201 GB Notification: Performance of simCode: created event and clocks part: time 1.624e-05/1.695, allocations: 4 kB / 1.468 GB, free: 500 kB / 1.201 GB Notification: Performance of simCode: created simulation system equations: time 0.01555/1.71, allocations: 4.406 MB / 1.473 GB, free: 12.03 MB / 1.217 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003724/1.714, allocations: 296.1 kB / 1.473 GB, free: 11.75 MB / 1.217 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv2.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -transformer.conv2.V2[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -loadRL.load1.v[1] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1247/1.839, allocations: 42.46 MB / 1.514 GB, free: 15.99 MB / 1.264 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004487/1.844, allocations: 2.857 MB / 1.517 GB, free: 13.1 MB / 1.264 GB Notification: Performance of simCode: alias equations: time 0.004997/1.849, allocations: 1.657 MB / 1.519 GB, free: 11.44 MB / 1.264 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00221/1.851, allocations: 1.226 MB / 1.52 GB, free: 10.21 MB / 1.264 GB Notification: Performance of SimCode: time 6.11e-07/1.851, allocations: 0 / 1.52 GB, free: 10.21 MB / 1.264 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.727/2.578, allocations: 103.4 MB / 1.621 GB, free: 427.8 MB / 1.311 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.55/18.13, allocations: 18.94 kB / 1.621 GB, free: 427.8 MB / 1.311 GB (rm -f Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.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_9_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD.fmu > Buildings_9_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)