Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.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 11.1.0-master/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_YD",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_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 0.004496/0.004496, allocations: 97.62 kB / 15.73 MB, free: 6.047 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001046/0.001046, allocations: 199.4 kB / 16.68 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 1.272/1.272, allocations: 222.9 MB / 240.4 MB, free: 4.34 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-master/package.mo): time 2.588/2.588, allocations: 469.4 MB / 0.7422 GB, free: 7.574 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001345/0.001345, allocations: 67.84 kB / 1.064 GB, free: 13.79 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2861/0.2874, allocations: 159.1 MB / 1.22 GB, free: 14.55 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD): time 0.02154/0.309, allocations: 18.2 MB / 1.238 GB, free: 12.29 MB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.01116/0.3203, allocations: 6.8 MB / 1.244 GB, free: 5.469 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001711/0.322, allocations: 55.88 kB / 1.244 GB, free: 5.414 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.004043/0.3261, allocations: 1.457 MB / 1.246 GB, free: 3.953 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.003681/0.3298, allocations: 1.447 MB / 1.247 GB, free: 2.5 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003228/0.333, allocations: 1.264 MB / 1.248 GB, free: 1.234 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.5433/0.8763, allocations: 5.438 MB / 1.254 GB, free: 8.453 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006297/0.8827, allocations: 7.068 MB / 1.261 GB, free: 7.074 MB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003434/0.8861, allocations: 2.363 MB / 1.263 GB, free: 6.965 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004329/0.8905, allocations: 2.952 MB / 1.266 GB, free: 6.703 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.0008582/0.8914, allocations: 0.5155 MB / 1.266 GB, free: 6.699 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002344/0.8937, allocations: 1.267 MB / 1.268 GB, free: 6.699 MB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.002264/0.896, allocations: 2.239 MB / 1.27 GB, free: 6.57 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.002246/0.8982, allocations: 2.167 MB / 1.272 GB, free: 6.062 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.009129/0.9074, allocations: 7.761 MB / 1.279 GB, free: 5.344 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 4.428e-06/0.9074, allocations: 0 / 1.279 GB, free: 5.344 MB / 0.9981 GB Notification: Performance of FrontEnd: time 1.753e-06/0.9074, allocations: 0 / 1.279 GB, free: 5.344 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 0.000197/0.9076, allocations: 1.375 kB / 1.279 GB, free: 5.344 MB / 0.9981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 983 * Number of variables: 983 Notification: Performance of Generate backend data structure: time 0.009265/0.9169, allocations: 3.876 MB / 1.283 GB, free: 3.465 MB / 0.9981 GB Notification: Performance of prepare preOptimizeDAE: time 4.139e-05/0.9169, allocations: 9.25 kB / 1.283 GB, free: 3.465 MB / 0.9981 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008205/0.9178, allocations: 0.5393 MB / 1.284 GB, free: 3.184 MB / 0.9981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01304/0.9308, allocations: 2.422 MB / 1.286 GB, free: 2.914 MB / 0.9981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005396/0.9362, allocations: 2.191 MB / 1.288 GB, free: 1.906 MB / 0.9981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001585/0.9364, allocations: 268.1 kB / 1.288 GB, free: 1.793 MB / 0.9981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007466/0.9371, allocations: 343.6 kB / 1.289 GB, free: 1.691 MB / 0.9981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0149/0.9521, allocations: 7.127 MB / 1.296 GB, free: 15.33 MB / 1.014 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.033e-05/0.9522, allocations: 3.688 kB / 1.296 GB, free: 15.33 MB / 1.014 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005092/0.9527, allocations: 148 kB / 1.296 GB, free: 15.23 MB / 1.014 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004847/0.9532, allocations: 333 kB / 1.296 GB, free: 15.19 MB / 1.014 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0158/0.969, allocations: 7.039 MB / 1.303 GB, free: 13.19 MB / 1.014 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03256/1.002, allocations: 26.47 MB / 1.329 GB, free: 7.73 MB / 1.029 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007888/1.009, allocations: 4.99 MB / 1.334 GB, free: 4.332 MB / 1.029 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00566/1.015, allocations: 2.608 MB / 1.336 GB, free: 3.012 MB / 1.029 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002251/1.015, allocations: 137.7 kB / 1.337 GB, free: 2.898 MB / 1.029 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.255e-05/1.015, allocations: 60.55 kB / 1.337 GB, free: 2.844 MB / 1.029 GB Notification: Performance of pre-optimization done (n=208): time 4.207e-06/1.015, allocations: 1.375 kB / 1.337 GB, free: 2.844 MB / 1.029 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 0.104/1.119, allocations: 31.13 MB / 1.367 GB, free: 9.793 MB / 1.061 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001138/1.12, allocations: 239.6 kB / 1.367 GB, free: 9.508 MB / 1.061 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002162/1.122, allocations: 1.431 MB / 1.369 GB, free: 8.066 MB / 1.061 GB Notification: Performance of collectPreVariables (initialization): time 0.0005695/1.122, allocations: 65.7 kB / 1.369 GB, free: 7.996 MB / 1.061 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009113/1.123, allocations: 1.543 MB / 1.37 GB, free: 6.445 MB / 1.061 GB Notification: Performance of collectInitialBindings (initialization): time 0.001076/1.124, allocations: 0.9586 MB / 1.371 GB, free: 5.5 MB / 1.061 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001159/1.126, allocations: 0.6359 MB / 1.372 GB, free: 4.855 MB / 1.061 GB Notification: Performance of setup shared object (initialization): time 9.645e-05/1.126, allocations: 309.1 kB / 1.372 GB, free: 4.551 MB / 1.061 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005841/1.131, allocations: 2.693 MB / 1.375 GB, free: 1.852 MB / 1.061 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006415/1.138, allocations: 3.572 MB / 1.378 GB, free: 13.92 MB / 1.076 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0122/1.15, allocations: 6.399 MB / 1.384 GB, free: 7.23 MB / 1.076 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.013e-05/1.15, allocations: 8 kB / 1.384 GB, free: 7.223 MB / 1.076 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 0.02828/1.178, allocations: 11.01 MB / 1.395 GB, free: 12.23 MB / 1.092 GB Notification: Performance of prepare postOptimizeDAE: time 4.996e-05/1.179, allocations: 16 kB / 1.395 GB, free: 12.22 MB / 1.092 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.976e-05/1.179, allocations: 35.55 kB / 1.395 GB, free: 12.19 MB / 1.092 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01959/1.198, allocations: 5.56 MB / 1.401 GB, free: 6.613 MB / 1.092 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004566/1.203, allocations: 0.9906 MB / 1.402 GB, free: 5.621 MB / 1.092 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04284/1.246, allocations: 28.22 MB / 1.429 GB, free: 8.969 MB / 1.123 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004859/1.251, allocations: 0.5655 MB / 1.43 GB, free: 8.402 MB / 1.123 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007899/1.251, allocations: 156 kB / 1.43 GB, free: 8.25 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009073/1.26, allocations: 3.988 MB / 1.434 GB, free: 4.254 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.006955/1.267, allocations: 3.532 MB / 1.437 GB, free: 356 kB / 1.123 GB Error: Initialization problem is structural singular. Please, check the initial conditions. Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08857/1.356, allocations: 24.63 MB / 1.461 GB, free: 7.219 MB / 1.154 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.178e-05/1.356, allocations: 4.844 kB / 1.461 GB, free: 7.215 MB / 1.154 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 0.02734/1.383, allocations: 10.55 MB / 1.472 GB, free: 12.53 MB / 1.17 GB Notification: Performance of prepare postOptimizeDAE: time 4.337e-05/1.383, allocations: 25.48 kB / 1.472 GB, free: 12.5 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.958e-05/1.384, allocations: 28 kB / 1.472 GB, free: 12.48 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0152/1.399, allocations: 4.318 MB / 1.476 GB, free: 8.141 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004778/1.404, allocations: 1.045 MB / 1.477 GB, free: 7.094 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03585/1.439, allocations: 27.17 MB / 1.503 GB, free: 11.23 MB / 1.201 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004847/1.444, allocations: 0.5537 MB / 1.504 GB, free: 10.67 MB / 1.201 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007431/1.445, allocations: 155.9 kB / 1.504 GB, free: 10.52 MB / 1.201 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 0.001455/1.447, allocations: 403.4 kB / 1.504 GB, free: 10.12 MB / 1.201 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009334/1.447, allocations: 206.7 kB / 1.505 GB, free: 9.914 MB / 1.201 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 0.02737/1.475, allocations: 10.16 MB / 1.515 GB, free: 15.68 MB / 1.217 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.639e-05/1.475, allocations: 28 kB / 1.515 GB, free: 15.65 MB / 1.217 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.985e-05/1.475, allocations: 12 kB / 1.515 GB, free: 15.64 MB / 1.217 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.578e-05/1.475, allocations: 11.95 kB / 1.515 GB, free: 15.62 MB / 1.217 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 0.03989/1.515, allocations: 16.32 MB / 1.531 GB, free: 15.12 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.738e-05/1.515, allocations: 11.94 kB / 1.531 GB, free: 15.11 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00348/1.518, allocations: 0.7374 MB / 1.531 GB, free: 14.38 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01831/1.537, allocations: 5.177 MB / 1.536 GB, free: 9.176 MB / 1.232 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000689/1.538, allocations: 75.95 kB / 1.536 GB, free: 9.102 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04079/1.578, allocations: 27.24 MB / 1.563 GB, free: 13.48 MB / 1.264 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.674e-05/1.578, allocations: 16.03 kB / 1.563 GB, free: 13.47 MB / 1.264 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 0.0267/1.605, allocations: 10.14 MB / 1.573 GB, free: 3.094 MB / 1.264 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002328/1.607, allocations: 0.726 MB / 1.574 GB, free: 2.348 MB / 1.264 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009495/1.608, allocations: 59.98 kB / 1.574 GB, free: 2.289 MB / 1.264 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004177/1.613, allocations: 0.503 MB / 1.574 GB, free: 1.785 MB / 1.264 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009575/1.614, allocations: 234.3 kB / 1.574 GB, free: 1.555 MB / 1.264 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004685/1.614, allocations: 95.95 kB / 1.575 GB, free: 1.461 MB / 1.264 GB Notification: Performance of sorting global known variables: time 0.001946/1.616, allocations: 0.9684 MB / 1.575 GB, free: 500 kB / 1.264 GB Notification: Performance of sort global known variables: time 6.21e-07/1.616, allocations: 0 / 1.575 GB, free: 500 kB / 1.264 GB Notification: Performance of remove unused functions: time 0.008626/1.625, allocations: 1.848 MB / 1.577 GB, free: 14.64 MB / 1.279 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 0.02764/1.652, allocations: 10.8 MB / 1.588 GB, free: 3.578 MB / 1.279 GB Notification: Performance of simCode: created initialization part: time 0.03017/1.683, allocations: 12.47 MB / 1.6 GB, free: 7.004 MB / 1.295 GB Notification: Performance of simCode: created event and clocks part: time 9.678e-06/1.683, allocations: 64 / 1.6 GB, free: 7.004 MB / 1.295 GB Notification: Performance of simCode: created simulation system equations: time 0.01088/1.693, allocations: 4.409 MB / 1.604 GB, free: 2.559 MB / 1.295 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003004/1.697, allocations: 277.2 kB / 1.605 GB, free: 2.293 MB / 1.295 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 simCode: created linear, non-linear and system jacobian parts: time 0.1021/1.799, allocations: 42.26 MB / 1.646 GB, free: 6.754 MB / 1.342 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00428/1.803, allocations: 2.84 MB / 1.649 GB, free: 3.879 MB / 1.342 GB Notification: Performance of simCode: alias equations: time 0.004789/1.808, allocations: 1.649 MB / 1.65 GB, free: 2.227 MB / 1.342 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002171/1.81, allocations: 1.206 MB / 1.651 GB, free: 1.023 MB / 1.342 GB Notification: Performance of SimCode: time 6.42e-07/1.81, allocations: 0 / 1.651 GB, free: 1.023 MB / 1.342 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1543/1.964, allocations: 102.6 MB / 1.752 GB, free: 10.9 MB / 1.451 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.77/16.73, allocations: 3.219 kB / 1.752 GB, free: 10.9 MB / 1.451 GB (rm -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.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_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepUp_YD.fmu > Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD.pipe 2>&1)