Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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.UnbalancedStepDown.YD,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00107/0.00107, allocations: 109.4 kB / 15.69 MB, free: 128 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001045/0.001045, allocations: 188.6 kB / 16.62 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.368/1.368, allocations: 205.1 MB / 222.5 MB, free: 4.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.766/1.766, allocations: 292.3 MB / 0.549 GB, free: 12.76 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001404/0.001404, allocations: 69.08 kB / 0.6718 GB, free: 26.25 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2133/0.2148, allocations: 114.5 MB / 0.7837 GB, free: 13.21 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.0223/0.2371, allocations: 18.23 MB / 0.8015 GB, free: 10.91 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01222/0.2494, allocations: 6.876 MB / 0.8082 GB, free: 4.012 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001878/0.2514, allocations: 55.88 kB / 0.8082 GB, free: 3.957 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.004202/0.2556, allocations: 1.465 MB / 0.8097 GB, free: 2.488 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.003952/0.2596, allocations: 1.404 MB / 0.811 GB, free: 1.078 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.003907/0.2635, allocations: 1.286 MB / 0.8123 GB, free: 15.79 MB / 0.6387 GB Notification: Performance of NFFlatten.flatten: time 0.006808/0.2703, allocations: 5.464 MB / 0.8176 GB, free: 10.32 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01077/0.2811, allocations: 7.241 MB / 0.8247 GB, free: 2.961 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004267/0.2854, allocations: 2.361 MB / 0.827 GB, free: 0.5938 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005475/0.2909, allocations: 2.98 MB / 0.8299 GB, free: 13.61 MB / 0.6544 GB Notification: Performance of NFPackage.collectConstants: time 0.002584/0.2936, allocations: 0.5117 MB / 0.8304 GB, free: 13.09 MB / 0.6544 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004324/0.2979, allocations: 1.272 MB / 0.8317 GB, free: 11.82 MB / 0.6544 GB Notification: Performance of NFScalarize.scalarize: time 0.003935/0.3019, allocations: 2.246 MB / 0.8338 GB, free: 9.57 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.00499/0.3069, allocations: 2.19 MB / 0.836 GB, free: 7.371 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.009536/0.3164, allocations: 7.767 MB / 0.8436 GB, free: 15.58 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 5.441e-06/0.3165, allocations: 0 / 0.8436 GB, free: 15.58 MB / 0.67 GB Notification: Performance of FrontEnd: time 1.714e-06/0.3165, allocations: 0 / 0.8436 GB, free: 15.58 MB / 0.67 GB Notification: Performance of Transformations before backend: time 0.0002265/0.3167, allocations: 0 / 0.8436 GB, free: 15.58 MB / 0.67 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 0.009478/0.3262, allocations: 3.827 MB / 0.8473 GB, free: 11.7 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 5.153e-05/0.3263, allocations: 12.03 kB / 0.8473 GB, free: 11.68 MB / 0.67 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008796/0.3271, allocations: 0.5465 MB / 0.8479 GB, free: 11.13 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01251/0.3397, allocations: 2.352 MB / 0.8502 GB, free: 8.77 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004957/0.3447, allocations: 2.182 MB / 0.8523 GB, free: 6.543 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000224/0.3449, allocations: 275.2 kB / 0.8525 GB, free: 6.273 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001048/0.346, allocations: 348 kB / 0.8529 GB, free: 5.934 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01481/0.3608, allocations: 7.124 MB / 0.8598 GB, free: 14.71 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.617e-05/0.3609, allocations: 4 kB / 0.8598 GB, free: 14.7 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004614/0.3614, allocations: 152 kB / 0.86 GB, free: 14.55 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004485/0.3618, allocations: 330.1 kB / 0.8603 GB, free: 14.23 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01609/0.3779, allocations: 7.005 MB / 0.8671 GB, free: 7.215 MB / 0.6856 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 0.03275/0.4107, allocations: 26.48 MB / 0.893 GB, free: 10.55 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008455/0.4192, allocations: 4.992 MB / 0.8979 GB, free: 5.25 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006057/0.4253, allocations: 2.596 MB / 0.9004 GB, free: 2.637 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003267/0.4256, allocations: 131 kB / 0.9005 GB, free: 2.492 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.507e-05/0.4257, allocations: 68.48 kB / 0.9006 GB, free: 2.414 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=208): time 4.469e-06/0.4257, allocations: 7.938 kB / 0.9006 GB, free: 2.406 MB / 0.7169 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 0.5048/0.9305, allocations: 30.94 MB / 0.9308 GB, free: 123.9 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.92e-05/0.9306, allocations: 235.5 kB / 0.931 GB, free: 123.7 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002212/0.9328, allocations: 1.444 MB / 0.9325 GB, free: 123.1 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0005518/0.9334, allocations: 64.92 kB / 0.9325 GB, free: 123.1 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008393/0.9343, allocations: 1.502 MB / 0.934 GB, free: 121.9 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008925/0.9352, allocations: 0.9212 MB / 0.9349 GB, free: 121.2 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001139/0.9363, allocations: 0.6309 MB / 0.9355 GB, free: 120.9 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 4.779e-05/0.9364, allocations: 309.8 kB / 0.9358 GB, free: 120.6 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006105/0.9425, allocations: 2.675 MB / 0.9384 GB, free: 119.8 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006875/0.9494, allocations: 3.545 MB / 0.9419 GB, free: 117.9 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01213/0.9615, allocations: 6.387 MB / 0.9481 GB, free: 114.9 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.98e-05/0.9616, allocations: 8 kB / 0.9481 GB, free: 114.9 MB / 0.7325 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 0.0269/0.9885, allocations: 10.99 MB / 0.9588 GB, free: 109.8 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 4.173e-05/0.9886, allocations: 19.62 kB / 0.9589 GB, free: 109.8 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.256e-05/0.9886, allocations: 27.41 kB / 0.9589 GB, free: 109.8 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01805/1.007, allocations: 5.464 MB / 0.9642 GB, free: 107.2 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003963/1.011, allocations: 0.9807 MB / 0.9652 GB, free: 106.9 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03433/1.045, allocations: 28.15 MB / 0.9927 GB, free: 79.89 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004359/1.049, allocations: 0.5497 MB / 0.9932 GB, free: 79.34 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006714/1.05, allocations: 148 kB / 0.9934 GB, free: 79.2 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.007397/1.058, allocations: 3.968 MB / 0.9972 GB, free: 75.22 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005799/1.063, allocations: 3.52 MB / 1.001 GB, free: 71.32 MB / 0.7325 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07986/1.143, allocations: 24.55 MB / 1.025 GB, free: 46.29 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.277e-05/1.143, allocations: 8 kB / 1.025 GB, free: 46.29 MB / 0.7325 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 0.02468/1.168, allocations: 10.49 MB / 1.035 GB, free: 35.64 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 3.865e-05/1.168, allocations: 19.83 kB / 1.035 GB, free: 35.63 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.079e-05/1.168, allocations: 24 kB / 1.035 GB, free: 35.61 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01352/1.182, allocations: 4.255 MB / 1.039 GB, free: 31.34 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004485/1.186, allocations: 1.026 MB / 1.04 GB, free: 30.32 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02938/1.216, allocations: 27.12 MB / 1.067 GB, free: 2.508 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004375/1.22, allocations: 0.5375 MB / 1.067 GB, free: 1.973 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006611/1.221, allocations: 148 kB / 1.067 GB, free: 1.828 MB / 0.7325 GB Warning: Assuming fixed start value for the following 2 variables: node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true ) "Voltage vector" type: Real [3,2] Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system: 0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2] 0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1]. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 119 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (301): * Single equations (assignments): 298 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (10,44,70.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(10,44)} Notification: Performance of prepare postOptimizeDAE: time 0.001305/1.222, allocations: 399.8 kB / 1.068 GB, free: 1.43 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009303/1.223, allocations: 197.7 kB / 1.068 GB, free: 1.234 MB / 0.7325 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 0.02721/1.25, allocations: 10.18 MB / 1.078 GB, free: 6.984 MB / 0.7481 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.07e-05/1.25, allocations: 28 kB / 1.078 GB, free: 6.957 MB / 0.7481 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.116e-05/1.25, allocations: 12 kB / 1.078 GB, free: 6.945 MB / 0.7481 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.606e-05/1.25, allocations: 15.95 kB / 1.078 GB, free: 6.93 MB / 0.7481 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 0.03855/1.289, allocations: 16.27 MB / 1.094 GB, free: 6.492 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.761e-05/1.289, allocations: 8 kB / 1.094 GB, free: 6.484 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00348/1.292, allocations: 0.7297 MB / 1.094 GB, free: 5.754 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01832/1.311, allocations: 5.099 MB / 1.099 GB, free: 0.6367 MB / 0.7637 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007367/1.312, allocations: 75.89 kB / 1.099 GB, free: 0.5625 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0401/1.352, allocations: 27.23 MB / 1.126 GB, free: 4.859 MB / 0.795 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.347e-05/1.352, allocations: 12.03 kB / 1.126 GB, free: 4.848 MB / 0.795 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 0.02632/1.378, allocations: 10.1 MB / 1.136 GB, free: 10.49 MB / 0.8106 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001862/1.38, allocations: 0.7209 MB / 1.137 GB, free: 9.75 MB / 0.8106 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008016/1.381, allocations: 56 kB / 1.137 GB, free: 9.695 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003803/1.385, allocations: 0.4953 MB / 1.137 GB, free: 9.199 MB / 0.8106 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008252/1.385, allocations: 226.4 kB / 1.137 GB, free: 8.98 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003689/1.386, allocations: 95.95 kB / 1.137 GB, free: 8.887 MB / 0.8106 GB Notification: Performance of sorting global known variables: time 0.001616/1.387, allocations: 0.9815 MB / 1.138 GB, free: 7.902 MB / 0.8106 GB Notification: Performance of sort global known variables: time 1.4e-07/1.387, allocations: 0 / 1.138 GB, free: 7.902 MB / 0.8106 GB Notification: Performance of remove unused functions: time 0.006657/1.394, allocations: 1.844 MB / 1.14 GB, free: 6.059 MB / 0.8106 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 0.0256/1.42, allocations: 10.75 MB / 1.151 GB, free: 11.05 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.03067/1.45, allocations: 12.4 MB / 1.163 GB, free: 14.55 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 1.815e-05/1.45, allocations: 0 / 1.163 GB, free: 14.55 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.0116/1.462, allocations: 4.426 MB / 1.167 GB, free: 10.08 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003035/1.465, allocations: 293.3 kB / 1.167 GB, free: 9.805 MB / 0.8419 GB Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] [ 1.0 , 0.0 , 0.0 , -1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , 1.0 , -1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_n[1] ; line2.v2_n[1] ; line2.v2_p[1] ; line2.v1_p[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -loadRL.load1.v[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -transformer.conv1.V2[1] ] might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2] 2 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2] 4 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1] [ -1.0 , 0.0 , 0.0 , 1.0 ; 0.0 , 0.0 , 1.0 , -1.0 ; 0.0 , -1.0 , 1.0 , 0.0 ; -1.0 , 1.0 , 0.0 , 0.0 ] * [ line2.v1_p[1] ; line2.v2_p[1] ; line2.v2_n[1] ; line2.v1_n[1] ] = [ line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ; -transformer.conv1.V2[1] ; line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ; -loadRL.load1.v[1] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1091/1.574, allocations: 42.29 MB / 1.209 GB, free: 14.22 MB / 0.8887 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00788/1.582, allocations: 2.849 MB / 1.212 GB, free: 11.34 MB / 0.8887 GB Notification: Performance of simCode: alias equations: time 0.006717/1.589, allocations: 1.649 MB / 1.213 GB, free: 9.688 MB / 0.8887 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002551/1.592, allocations: 1.222 MB / 1.214 GB, free: 8.469 MB / 0.8887 GB Notification: Performance of SimCode: time 9.01e-07/1.592, allocations: 4 kB / 1.214 GB, free: 8.465 MB / 0.8887 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5749/2.166, allocations: 101.7 MB / 1.314 GB, free: 302 MB / 0.9356 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.56/17.72, allocations: 27.47 kB / 1.314 GB, free: 302 MB / 0.9356 GB (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate --output-file Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)