Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_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 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.UnbalancedStepUp.YD,fileNamePrefix="Buildings_10_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_10_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 0.004827/0.004828, allocations: 97.98 kB / 15.73 MB, free: 5.605 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001123/0.001123, allocations: 192.5 kB / 16.67 MB, free: 5.527 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.347/1.347, 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 2.389/2.389, allocations: 437 MB / 0.7105 GB, free: 4.367 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.001404/0.001404, allocations: 63.91 kB / 1.018 GB, free: 9.758 MB / 0.795 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7669/0.7684, allocations: 151.6 MB / 1.166 GB, free: 3.73 MB / 0.8887 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.02193/0.7903, allocations: 18.27 MB / 1.184 GB, free: 1.391 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.01151/0.8019, allocations: 6.867 MB / 1.191 GB, free: 10.5 MB / 0.92 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001371/0.8033, allocations: 55.88 kB / 1.191 GB, free: 10.45 MB / 0.92 GB Notification: Performance of NFTyping.typeComponents: time 0.003783/0.8071, allocations: 1.473 MB / 1.192 GB, free: 8.969 MB / 0.92 GB Notification: Performance of NFTyping.typeBindings: time 0.003388/0.8105, allocations: 1.467 MB / 1.194 GB, free: 7.496 MB / 0.92 GB Notification: Performance of NFTyping.typeClassSections: time 0.003056/0.8136, allocations: 1.265 MB / 1.195 GB, free: 6.23 MB / 0.92 GB Notification: Performance of NFFlatten.flatten: time 0.005727/0.8193, allocations: 5.472 MB / 1.2 GB, free: 0.7461 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008212/0.8275, allocations: 7.123 MB / 1.207 GB, free: 9.516 MB / 0.9356 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003333/0.8309, allocations: 2.384 MB / 1.21 GB, free: 7.125 MB / 0.9356 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00465/0.8355, allocations: 2.976 MB / 1.212 GB, free: 4.141 MB / 0.9356 GB Notification: Performance of NFPackage.collectConstants: time 0.001274/0.8368, allocations: 0.5156 MB / 1.213 GB, free: 3.625 MB / 0.9356 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002702/0.8395, allocations: 1.264 MB / 1.214 GB, free: 2.359 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.002695/0.8422, allocations: 2.25 MB / 1.216 GB, free: 108 kB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.00342/0.8457, allocations: 2.191 MB / 1.219 GB, free: 13.9 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.007656/0.8533, allocations: 7.797 MB / 1.226 GB, free: 6.086 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 4.198e-06/0.8534, allocations: 0 / 1.226 GB, free: 6.086 MB / 0.9512 GB Notification: Performance of FrontEnd: time 1.593e-06/0.8534, allocations: 4 kB / 1.226 GB, free: 6.082 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 0.000134/0.8535, allocations: 0 / 1.226 GB, free: 6.082 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: 994 * Number of variables: 994 Notification: Performance of Generate backend data structure: time 0.007294/0.8608, allocations: 3.907 MB / 1.23 GB, free: 2.109 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 4.263e-05/0.8609, allocations: 16.91 kB / 1.23 GB, free: 2.094 MB / 0.9512 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00069/0.8616, allocations: 0.5464 MB / 1.231 GB, free: 1.539 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0134/0.875, allocations: 2.429 MB / 1.233 GB, free: 15.11 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004808/0.8798, allocations: 2.199 MB / 1.235 GB, free: 12.86 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001725/0.88, allocations: 267.3 kB / 1.235 GB, free: 12.6 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00068/0.8807, allocations: 352 kB / 1.236 GB, free: 12.25 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01309/0.8938, allocations: 7.155 MB / 1.243 GB, free: 4.996 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.105e-05/0.8939, allocations: 11.94 kB / 1.243 GB, free: 4.984 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004262/0.8943, allocations: 148 kB / 1.243 GB, free: 4.84 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004399/0.8947, allocations: 338.1 kB / 1.243 GB, free: 4.508 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.015/0.9097, allocations: 7.048 MB / 1.25 GB, free: 13.45 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03079/0.9406, allocations: 26.54 MB / 1.276 GB, free: 0.7344 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007994/0.9486, allocations: 4.99 MB / 1.281 GB, free: 11.45 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005809/0.9544, allocations: 2.62 MB / 1.283 GB, free: 8.801 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002269/0.9547, allocations: 131 kB / 1.283 GB, free: 8.652 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.117e-05/0.9547, allocations: 60.44 kB / 1.284 GB, free: 8.586 MB / 1.014 GB Notification: Performance of pre-optimization done (n=208): time 3.557e-06/0.9547, allocations: 0 / 1.284 GB, free: 8.586 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.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 0.1047/1.059, allocations: 31.19 MB / 1.314 GB, free: 9.344 MB / 1.045 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001056/1.06, allocations: 235.6 kB / 1.314 GB, free: 9.062 MB / 1.045 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002025/1.062, allocations: 1.477 MB / 1.316 GB, free: 7.578 MB / 1.045 GB Notification: Performance of collectPreVariables (initialization): time 0.0002904/1.062, allocations: 65.7 kB / 1.316 GB, free: 7.508 MB / 1.045 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008665/1.063, allocations: 1.55 MB / 1.317 GB, free: 5.941 MB / 1.045 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008537/1.064, allocations: 0.9683 MB / 1.318 GB, free: 4.965 MB / 1.045 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001194/1.065, allocations: 0.636 MB / 1.319 GB, free: 4.32 MB / 1.045 GB Notification: Performance of setup shared object (initialization): time 8.368e-05/1.065, allocations: 305.1 kB / 1.319 GB, free: 4.02 MB / 1.045 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005832/1.071, allocations: 2.69 MB / 1.322 GB, free: 1.32 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006475/1.077, allocations: 3.568 MB / 1.325 GB, free: 13.38 MB / 1.061 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01256/1.09, allocations: 6.399 MB / 1.331 GB, free: 6.578 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.297e-05/1.09, allocations: 8 kB / 1.331 GB, free: 6.57 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.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 0.02821/1.118, allocations: 10.99 MB / 1.342 GB, free: 11.46 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 4.197e-05/1.118, allocations: 16 kB / 1.342 GB, free: 11.45 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.573e-05/1.118, allocations: 27.98 kB / 1.342 GB, free: 11.42 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02011/1.138, allocations: 5.56 MB / 1.348 GB, free: 5.848 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004403/1.143, allocations: 0.9984 MB / 1.349 GB, free: 4.848 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0431/1.186, allocations: 28.22 MB / 1.376 GB, free: 8.18 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00486/1.191, allocations: 0.5771 MB / 1.377 GB, free: 7.602 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006174/1.191, allocations: 152 kB / 1.377 GB, free: 7.453 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009133/1.201, allocations: 3.98 MB / 1.381 GB, free: 3.465 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.008216/1.209, allocations: 3.532 MB / 1.384 GB, free: 15.55 MB / 1.123 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.09211/1.301, allocations: 24.61 MB / 1.408 GB, free: 6.422 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.957e-05/1.301, allocations: 8 kB / 1.408 GB, free: 6.414 MB / 1.139 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 0.02743/1.328, allocations: 10.54 MB / 1.419 GB, free: 11.73 MB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 4.08e-05/1.329, allocations: 19.94 kB / 1.419 GB, free: 11.71 MB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.961e-05/1.329, allocations: 31.98 kB / 1.419 GB, free: 11.68 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01566/1.344, allocations: 4.321 MB / 1.423 GB, free: 7.344 MB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004813/1.349, allocations: 1.049 MB / 1.424 GB, free: 6.293 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03636/1.385, allocations: 27.17 MB / 1.45 GB, free: 10.39 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00473/1.39, allocations: 0.5499 MB / 1.451 GB, free: 9.844 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006694/1.391, allocations: 151.9 kB / 1.451 GB, free: 9.695 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.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 0.001339/1.392, allocations: 399.3 kB / 1.451 GB, free: 9.297 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008067/1.393, allocations: 214.7 kB / 1.452 GB, free: 9.086 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 : 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 0.02813/1.421, allocations: 10.17 MB / 1.462 GB, free: 14.85 MB / 1.201 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.509e-05/1.421, allocations: 28 kB / 1.462 GB, free: 14.82 MB / 1.201 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.936e-05/1.421, allocations: 15.98 kB / 1.462 GB, free: 14.8 MB / 1.201 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.347e-05/1.421, allocations: 15.95 kB / 1.462 GB, free: 14.79 MB / 1.201 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 0.03846/1.46, allocations: 16.3 MB / 1.478 GB, free: 14.23 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.858e-05/1.46, allocations: 8 kB / 1.478 GB, free: 14.23 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003632/1.464, allocations: 0.7373 MB / 1.478 GB, free: 13.49 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01966/1.483, allocations: 5.185 MB / 1.483 GB, free: 8.289 MB / 1.217 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006158/1.484, allocations: 71.95 kB / 1.483 GB, free: 8.219 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04334/1.527, allocations: 27.22 MB / 1.51 GB, free: 12.5 MB / 1.248 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.036e-05/1.527, allocations: 12.03 kB / 1.51 GB, free: 12.49 MB / 1.248 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 0.02745/1.555, allocations: 10.15 MB / 1.52 GB, free: 2.098 MB / 1.248 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00222/1.557, allocations: 0.7338 MB / 1.521 GB, free: 1.344 MB / 1.248 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008466/1.558, allocations: 59.94 kB / 1.521 GB, free: 1.285 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004107/1.562, allocations: 0.5108 MB / 1.521 GB, free: 0.7734 MB / 1.248 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001106/1.563, allocations: 226.4 kB / 1.521 GB, free: 0.5469 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004749/1.564, allocations: 95.95 kB / 1.522 GB, free: 464 kB / 1.248 GB Notification: Performance of sorting global known variables: time 0.002137/1.566, allocations: 0.9972 MB / 1.522 GB, free: 15.45 MB / 1.264 GB Notification: Performance of sort global known variables: time 2.9e-07/1.566, allocations: 0 / 1.522 GB, free: 15.45 MB / 1.264 GB Notification: Performance of remove unused functions: time 0.007682/1.573, allocations: 1.855 MB / 1.524 GB, free: 13.6 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 : 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 0.02818/1.602, allocations: 10.8 MB / 1.535 GB, free: 2.531 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.0314/1.633, allocations: 12.49 MB / 1.547 GB, free: 5.93 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 1.006e-05/1.633, allocations: 448 / 1.547 GB, free: 5.93 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.01114/1.644, allocations: 4.405 MB / 1.551 GB, free: 1.48 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002637/1.647, allocations: 294.4 kB / 1.552 GB, free: 1.203 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.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 0.6571/2.304, allocations: 42.45 MB / 1.593 GB, free: 348.2 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002774/2.307, allocations: 2.855 MB / 1.596 GB, free: 345.3 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.003761/2.311, allocations: 1.647 MB / 1.597 GB, free: 343.8 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001318/2.312, allocations: 1.226 MB / 1.599 GB, free: 342.6 MB / 1.279 GB Notification: Performance of SimCode: time 7.71e-07/2.312, allocations: 0 / 1.599 GB, free: 342.6 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1227/2.435, allocations: 103.5 MB / 1.7 GB, free: 239.6 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.43/17.86, allocations: 6.625 kB / 1.7 GB, free: 239.6 MB / 1.279 GB (rm -f Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file Buildings_10_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_10_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepUp_YD.fmu > Buildings_10_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)