Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001714/0.001714, allocations: 104.2 kB / 16.45 MB, free: 6.449 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.002076/0.002076, allocations: 210.4 kB / 19.43 MB, free: 3.637 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.569/1.569, allocations: 230.6 MB / 252.8 MB, free: 9.141 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo): time 3.456/3.456, allocations: 0.49 GB / 0.7916 GB, free: 33.5 MB / 0.6231 GB
"
[Timeout remaining time 176]
Using package Buildings with version 12.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo)
Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo)
Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo)
Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo)
Running command: "" <> buildModelFMU(Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_Utilities_SetPoints_Validation_SupplyReturnTemperatureReset",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_Utilities_SetPoints_Validation_SupplyReturnTemperatureReset",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300]
"Notification: Buildings requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Performance of FrontEnd - loaded program: time 0.00205/0.00205, allocations: 73.2 kB / 1.149 GB, free: 26.47 MB / 0.9044 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3761/0.3782, allocations: 176.1 MB / 1.321 GB, free: 3.355 MB / 1.014 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset): time 0.003906/0.3821, allocations: 2.224 MB / 1.323 GB, free: 1.133 MB / 1.014 GB
Notification: Performance of NFInst.instExpressions: time 0.002819/0.3849, allocations: 1.591 MB / 1.324 GB, free: 15.53 MB / 1.029 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0004484/0.3853, allocations: 12 kB / 1.325 GB, free: 15.52 MB / 1.029 GB
Notification: Performance of NFTyping.typeComponents: time 0.0002527/0.3856, allocations: 59.2 kB / 1.325 GB, free: 15.46 MB / 1.029 GB
Notification: Performance of NFTyping.typeBindings: time 0.0004906/0.3861, allocations: 99.08 kB / 1.325 GB, free: 15.36 MB / 1.029 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0009938/0.3871, allocations: 299.5 kB / 1.325 GB, free: 15.07 MB / 1.029 GB
Notification: Performance of NFFlatten.flatten: time 0.0008969/0.388, allocations: 0.6409 MB / 1.326 GB, free: 14.43 MB / 1.029 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0005132/0.3885, allocations: 269.8 kB / 1.326 GB, free: 14.15 MB / 1.029 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.000378/0.3889, allocations: 231.2 kB / 1.326 GB, free: 13.92 MB / 1.029 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.000396/0.3893, allocations: 265.5 kB / 1.326 GB, free: 13.66 MB / 1.029 GB
Notification: Performance of NFPackage.collectConstants: time 0.0001421/0.3894, allocations: 68 kB / 1.326 GB, free: 13.6 MB / 1.029 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0002119/0.3896, allocations: 95.98 kB / 1.326 GB, free: 13.5 MB / 1.029 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001375/0.3897, allocations: 123.6 kB / 1.327 GB, free: 13.38 MB / 1.029 GB
Notification: Performance of NFVerifyModel.verify: time 0.0003409/0.3901, allocations: 294.5 kB / 1.327 GB, free: 13.09 MB / 1.029 GB
Notification: Performance of NFConvertDAE.convert: time 0.0009272/0.391, allocations: 0.8016 MB / 1.328 GB, free: 12.29 MB / 1.029 GB
Notification: Performance of FrontEnd - DAE generated: time 4.038e-06/0.391, allocations: 0 / 1.328 GB, free: 12.29 MB / 1.029 GB
Notification: Performance of FrontEnd: time 1.764e-06/0.391, allocations: 0 / 1.328 GB, free: 12.29 MB / 1.029 GB
Notification: Performance of Transformations before backend: time 1.865e-05/0.391, allocations: 4 kB / 1.328 GB, free: 12.29 MB / 1.029 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 139
 * Number of variables: 139
Notification: Performance of Generate backend data structure: time 0.001593/0.3926, allocations: 0.8317 MB / 1.328 GB, free: 11.39 MB / 1.029 GB
Notification: Performance of prepare preOptimizeDAE: time 5.786e-05/0.3927, allocations: 11.98 kB / 1.328 GB, free: 11.38 MB / 1.029 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001742/0.3929, allocations: 106.6 kB / 1.329 GB, free: 11.27 MB / 1.029 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003146/0.3932, allocations: 64.56 kB / 1.329 GB, free: 11.2 MB / 1.029 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005532/0.3937, allocations: 355.9 kB / 1.329 GB, free: 10.82 MB / 1.029 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.899e-05/0.3938, allocations: 41.69 kB / 1.329 GB, free: 10.78 MB / 1.029 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 8.638e-05/0.3939, allocations: 64.31 kB / 1.329 GB, free: 10.71 MB / 1.029 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001032/0.3949, allocations: 0.507 MB / 1.33 GB, free: 10.19 MB / 1.029 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.22e-05/0.3949, allocations: 7.875 kB / 1.33 GB, free: 10.18 MB / 1.029 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.255e-05/0.395, allocations: 20 kB / 1.33 GB, free: 10.16 MB / 1.029 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.548e-05/0.395, allocations: 12 kB / 1.33 GB, free: 10.15 MB / 1.029 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007848/0.3958, allocations: 356.7 kB / 1.33 GB, free: 9.805 MB / 1.029 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002416/0.3982, allocations: 1.454 MB / 1.331 GB, free: 8.289 MB / 1.029 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0006224/0.3988, allocations: 261.3 kB / 1.332 GB, free: 8.016 MB / 1.029 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004481/0.3992, allocations: 177.6 kB / 1.332 GB, free: 7.836 MB / 1.029 GB
Notification: Performance of preOpt evalFunc (simulation): time 3.673e-05/0.3993, allocations: 8 kB / 1.332 GB, free: 7.828 MB / 1.029 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003993/0.3997, allocations: 195 kB / 1.332 GB, free: 7.617 MB / 1.029 GB
Notification: Performance of pre-optimization done (n=34): time 2.214e-06/0.3997, allocations: 3.938 kB / 1.332 GB, free: 7.613 MB / 1.029 GB
Notification: Performance of matching and sorting (n=34): time 0.0009341/0.4006, allocations: 391 kB / 1.332 GB, free: 7.227 MB / 1.029 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 6.756e-05/0.4007, allocations: 89.05 kB / 1.332 GB, free: 7.121 MB / 1.029 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004997/0.4012, allocations: 405.7 kB / 1.333 GB, free: 6.719 MB / 1.029 GB
Notification: Performance of collectPreVariables (initialization): time 4.581e-05/0.4012, allocations: 37.7 kB / 1.333 GB, free: 6.676 MB / 1.029 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0002162/0.4014, allocations: 268.4 kB / 1.333 GB, free: 6.41 MB / 1.029 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001024/0.4016, allocations: 119 kB / 1.333 GB, free: 6.293 MB / 1.029 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001476/0.4017, allocations: 86.11 kB / 1.333 GB, free: 6.203 MB / 1.029 GB
Notification: Performance of setup shared object (initialization): time 0.000176/0.4019, allocations: 354.7 kB / 1.334 GB, free: 5.848 MB / 1.029 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003174/0.4022, allocations: 136.8 kB / 1.334 GB, free: 5.715 MB / 1.029 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003579/0.4026, allocations: 203.2 kB / 1.334 GB, free: 5.492 MB / 1.029 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0006223/0.4032, allocations: 339.9 kB / 1.334 GB, free: 5.133 MB / 1.029 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.997e-06/0.4032, allocations: 0 / 1.334 GB, free: 5.133 MB / 1.029 GB
Notification: Performance of matching and sorting (n=50) (initialization): time 0.0009432/0.4041, allocations: 480.7 kB / 1.335 GB, free: 4.652 MB / 1.029 GB
Notification: Performance of prepare postOptimizeDAE: time 4.486e-05/0.4042, allocations: 37.7 kB / 1.335 GB, free: 4.609 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.818e-06/0.4042, allocations: 4 kB / 1.335 GB, free: 4.605 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.761e-05/0.4042, allocations: 4 kB / 1.335 GB, free: 4.602 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003575/0.4046, allocations: 79.83 kB / 1.335 GB, free: 4.523 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.372e-05/0.4046, allocations: 7.938 kB / 1.335 GB, free: 4.516 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003942/0.405, allocations: 83.67 kB / 1.335 GB, free: 4.434 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.501e-05/0.405, allocations: 23.98 kB / 1.335 GB, free: 4.41 MB / 1.029 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 8
 * Number of states: 0 ()
 * Number of discrete variables: 4 ($whenCondition1,$whenCondition2,TRoo1.booPul.y,$PRE.TRoo1.booPul.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (48):
 * Single equations (assignments): 47
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0002146/0.4052, allocations: 169.7 kB / 1.335 GB, free: 4.234 MB / 1.029 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 6.015e-05/0.4053, allocations: 35.77 kB / 1.335 GB, free: 4.199 MB / 1.029 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007124/0.406, allocations: 335.1 kB / 1.336 GB, free: 3.863 MB / 1.029 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.806e-06/0.406, allocations: 7.938 kB / 1.336 GB, free: 3.855 MB / 1.029 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 6.512e-06/0.406, allocations: 4 kB / 1.336 GB, free: 3.852 MB / 1.029 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.802e-06/0.406, allocations: 3.984 kB / 1.336 GB, free: 3.848 MB / 1.029 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00137/0.4074, allocations: 0.9708 MB / 1.336 GB, free: 2.801 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.737e-06/0.4074, allocations: 0 / 1.336 GB, free: 2.801 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002617/0.4076, allocations: 63.91 kB / 1.337 GB, free: 2.738 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (simulation): time 5.44e-06/0.4077, allocations: 0 / 1.337 GB, free: 2.738 MB / 1.029 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.712e-05/0.4077, allocations: 12 kB / 1.337 GB, free: 2.727 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.211e-06/0.4077, allocations: 3.938 kB / 1.337 GB, free: 2.723 MB / 1.029 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.009e-06/0.4077, allocations: 4 kB / 1.337 GB, free: 2.719 MB / 1.029 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008503/0.4085, allocations: 0.5134 MB / 1.337 GB, free: 2.168 MB / 1.029 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001491/0.4087, allocations: 128.8 kB / 1.337 GB, free: 2.023 MB / 1.029 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.487e-05/0.4087, allocations: 11.94 kB / 1.337 GB, free: 2.012 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002414/0.409, allocations: 15.98 kB / 1.337 GB, free: 1.996 MB / 1.029 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 8.868e-05/0.4091, allocations: 27.89 kB / 1.337 GB, free: 1.969 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.326e-05/0.4091, allocations: 12 kB / 1.337 GB, free: 1.957 MB / 1.029 GB
Notification: Performance of sorting global known variables: time 0.0004154/0.4095, allocations: 287.2 kB / 1.338 GB, free: 1.684 MB / 1.029 GB
Notification: Performance of sort global known variables: time 1.1e-07/0.4095, allocations: 8 kB / 1.338 GB, free: 1.676 MB / 1.029 GB
Notification: Performance of remove unused functions: time 0.0006099/0.4101, allocations: 111.7 kB / 1.338 GB, free: 1.566 MB / 1.029 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 8
 * Number of states: 0 ()
 * Number of discrete variables: 3 ($whenCondition1,$whenCondition2,TRoo1.booPul.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (34):
 * Single equations (assignments): 33
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 1
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.001559/0.4117, allocations: 1.07 MB / 1.339 GB, free: 460 kB / 1.029 GB
Notification: Performance of simCode: created initialization part: time 0.0009449/0.4126, allocations: 353.2 kB / 1.339 GB, free: 96 kB / 1.029 GB
Notification: Performance of simCode: created event and clocks part: time 5.831e-06/0.4126, allocations: 0 / 1.339 GB, free: 96 kB / 1.029 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003384/0.413, allocations: 134.6 kB / 1.339 GB, free: 15.96 MB / 1.045 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006757/0.4136, allocations: 78.14 kB / 1.339 GB, free: 15.89 MB / 1.045 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006409/0.4201, allocations: 3.773 MB / 1.343 GB, free: 11.95 MB / 1.045 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005524/0.4206, allocations: 0.8237 MB / 1.344 GB, free: 11.09 MB / 1.045 GB
Notification: Performance of simCode: alias equations: time 0.0001675/0.4208, allocations: 47.25 kB / 1.344 GB, free: 11.05 MB / 1.045 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002319/0.421, allocations: 151.4 kB / 1.344 GB, free: 10.9 MB / 1.045 GB
Notification: Performance of SimCode: time 1.082e-06/0.421, allocations: 4 kB / 1.344 GB, free: 10.9 MB / 1.045 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03631/0.4573, allocations: 7.251 MB / 1.351 GB, free: 3.844 MB / 1.045 GB
Notification: Performance of buildModelFMU: Generate platform static: time 8.787/9.245, allocations: 7.531 kB / 1.351 GB, free: 3.836 MB / 1.045 GB
"
[Timeout remaining time 291]
(rm -f Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.pipe ; mkfifo Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.pipe ; head -c 1048576 < Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.pipe >> ../files/Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.sim & python3 -m fmpy simulate  --output-file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_12_Buildings_Controls_OBC_Utilities_SetPoints_Validation_SupplyReturnTemperatureReset.fmu > Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.pipe 2>&1) [Timeout 420.0]
diffSimulationResults("Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Controls_OBC_Utilities_SetPoints_Validation_SupplyReturnTemperatureReset.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
"Error: Could not read variable heaCur.TOut in file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv.
Warning: Get data of variable heaCur.TOut from file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv failed!
Error: Could not read variable heaCur1.TSetZon in file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv.
Warning: Get data of variable heaCur1.TSetZon from file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv failed!
Error: Could not read variable heaCur1.TSup in file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv.
Warning: Get data of variable heaCur1.TSup from file Buildings_12_Buildings.Controls.OBC.Utilities.SetPoints.Validation.SupplyReturnTemperatureReset_res.csv failed!
"
[Timeout remaining time 300]
Reference file matches
[Calling sys.exit(0), Time elapsed: 16.51049641519785]