Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.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 0.001781/0.001781, allocations: 110.4 kB / 18.94 MB, free: 2.949 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 0.002422/0.002422, allocations: 220.3 kB / 22.26 MB, free: 5.125 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 1.54/1.54, allocations: 230.6 MB / 256 MB, free: 7.996 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 3.295/3.295, allocations: 0.49 GB / 0.7951 GB, free: 33.52 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.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_SeriesFanVVF_Subsequences_Validation_Overrides",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_SeriesFanVVF_Subsequences_Validation_Overrides",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 0.001963/0.001963, allocations: 65.53 kB / 1.154 GB, free: 25.63 MB / 0.9044 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3511/0.3531, allocations: 176.1 MB / 1.326 GB, free: 1.941 MB / 1.014 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides): time 0.003121/0.3562, allocations: 1.352 MB / 1.327 GB, free: 0.5898 MB / 1.014 GB
Notification: Performance of NFInst.instExpressions: time 0.002106/0.3583, allocations: 1.365 MB / 1.329 GB, free: 15.21 MB / 1.029 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0002182/0.3585, allocations: 8 kB / 1.329 GB, free: 15.2 MB / 1.029 GB
Notification: Performance of NFTyping.typeComponents: time 0.0001301/0.3586, allocations: 31.59 kB / 1.329 GB, free: 15.17 MB / 1.029 GB
Notification: Performance of NFTyping.typeBindings: time 0.0002613/0.3589, allocations: 43.53 kB / 1.329 GB, free: 15.13 MB / 1.029 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0008674/0.3598, allocations: 223.3 kB / 1.329 GB, free: 14.91 MB / 1.029 GB
Notification: Performance of NFFlatten.flatten: time 0.0007205/0.3605, allocations: 376.2 kB / 1.329 GB, free: 14.54 MB / 1.029 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0003572/0.3608, allocations: 137.4 kB / 1.329 GB, free: 14.41 MB / 1.029 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0003209/0.3612, allocations: 147.5 kB / 1.33 GB, free: 14.27 MB / 1.029 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.000379/0.3615, allocations: 171.3 kB / 1.33 GB, free: 14.1 MB / 1.029 GB
Notification: Performance of NFPackage.collectConstants: time 0.0001185/0.3617, allocations: 40 kB / 1.33 GB, free: 14.06 MB / 1.029 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0001601/0.3618, allocations: 59.97 kB / 1.33 GB, free: 14 MB / 1.029 GB
Notification: Performance of NFScalarize.scalarize: time 0.0001121/0.3619, allocations: 71.77 kB / 1.33 GB, free: 13.93 MB / 1.029 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002405/0.3622, allocations: 167.2 kB / 1.33 GB, free: 13.77 MB / 1.029 GB
Notification: Performance of NFConvertDAE.convert: time 0.0008253/0.363, allocations: 478.3 kB / 1.33 GB, free: 13.3 MB / 1.029 GB
Notification: Performance of FrontEnd - DAE generated: time 6.252e-06/0.363, allocations: 0 / 1.33 GB, free: 13.3 MB / 1.029 GB
Notification: Performance of FrontEnd: time 1.773e-06/0.363, allocations: 4 kB / 1.33 GB, free: 13.29 MB / 1.029 GB
Notification: Performance of Transformations before backend: time 2.405e-05/0.363, allocations: 4 kB / 1.33 GB, free: 13.29 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: 70
 * Number of variables: 70
Notification: Performance of Generate backend data structure: time 0.001751/0.3648, allocations: 0.5693 MB / 1.331 GB, free: 12.68 MB / 1.029 GB
Notification: Performance of prepare preOptimizeDAE: time 5.817e-05/0.3648, allocations: 11.97 kB / 1.331 GB, free: 12.66 MB / 1.029 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001216/0.365, allocations: 66.72 kB / 1.331 GB, free: 12.59 MB / 1.029 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001266/0.3651, allocations: 36.75 kB / 1.331 GB, free: 12.55 MB / 1.029 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009734/0.3661, allocations: 295.2 kB / 1.331 GB, free: 12.24 MB / 1.029 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.454e-05/0.3661, allocations: 25.03 kB / 1.331 GB, free: 12.22 MB / 1.029 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 7.275e-05/0.3662, allocations: 28.38 kB / 1.331 GB, free: 12.19 MB / 1.029 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007806/0.367, allocations: 329.3 kB / 1.332 GB, free: 11.86 MB / 1.029 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.343e-05/0.367, allocations: 0 / 1.332 GB, free: 11.86 MB / 1.029 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.869e-05/0.367, allocations: 8 kB / 1.332 GB, free: 11.85 MB / 1.029 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.289e-05/0.367, allocations: 12 kB / 1.332 GB, free: 11.84 MB / 1.029 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007069/0.3677, allocations: 225 kB / 1.332 GB, free: 11.62 MB / 1.029 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00182/0.3695, allocations: 0.9563 MB / 1.333 GB, free: 10.6 MB / 1.029 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0005717/0.3701, allocations: 191.8 kB / 1.333 GB, free: 10.38 MB / 1.029 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0003335/0.3705, allocations: 98.59 kB / 1.333 GB, free: 10.28 MB / 1.029 GB
Notification: Performance of preOpt evalFunc (simulation): time 4.317e-05/0.3705, allocations: 7.984 kB / 1.333 GB, free: 10.27 MB / 1.029 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005857/0.3711, allocations: 182.9 kB / 1.333 GB, free: 10.07 MB / 1.029 GB
Notification: Performance of pre-optimization done (n=22): time 1.603e-06/0.3711, allocations: 0 / 1.333 GB, free: 10.07 MB / 1.029 GB
Notification: Performance of matching and sorting (n=22): time 0.001066/0.3721, allocations: 313.7 kB / 1.334 GB, free: 9.758 MB / 1.029 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 8.345e-05/0.3722, allocations: 110.8 kB / 1.334 GB, free: 9.625 MB / 1.029 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002721/0.3725, allocations: 224 kB / 1.334 GB, free: 9.387 MB / 1.029 GB
Notification: Performance of collectPreVariables (initialization): time 4.515e-05/0.3725, allocations: 33.7 kB / 1.334 GB, free: 9.348 MB / 1.029 GB
Notification: Performance of collectInitialEqns (initialization): time 0.000156/0.3727, allocations: 172.7 kB / 1.334 GB, free: 9.176 MB / 1.029 GB
Notification: Performance of collectInitialBindings (initialization): time 6.203e-05/0.3728, allocations: 63.47 kB / 1.334 GB, free: 9.113 MB / 1.029 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001498/0.3729, allocations: 85.62 kB / 1.334 GB, free: 9.023 MB / 1.029 GB
Notification: Performance of setup shared object (initialization): time 0.0001772/0.3731, allocations: 334.8 kB / 1.335 GB, free: 8.688 MB / 1.029 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003477/0.3734, allocations: 100.1 kB / 1.335 GB, free: 8.586 MB / 1.029 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004142/0.3739, allocations: 195.9 kB / 1.335 GB, free: 8.355 MB / 1.029 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0007377/0.3746, allocations: 308.5 kB / 1.335 GB, free: 8.008 MB / 1.029 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.368e-06/0.3746, allocations: 0 / 1.335 GB, free: 8.008 MB / 1.029 GB
Notification: Performance of matching and sorting (n=33) (initialization): time 0.0009675/0.3756, allocations: 366.9 kB / 1.336 GB, free: 7.637 MB / 1.029 GB
Notification: Performance of prepare postOptimizeDAE: time 5.383e-05/0.3756, allocations: 37.64 kB / 1.336 GB, free: 7.594 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.297e-05/0.3756, allocations: 4.625 kB / 1.336 GB, free: 7.59 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (initialization): time 2.529e-05/0.3757, allocations: 4 kB / 1.336 GB, free: 7.586 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002991/0.376, allocations: 55.89 kB / 1.336 GB, free: 7.531 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.509e-05/0.376, allocations: 7.938 kB / 1.336 GB, free: 7.523 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000348/0.3763, allocations: 64.02 kB / 1.336 GB, free: 7.461 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.523e-05/0.3764, allocations: 16 kB / 1.336 GB, free: 7.445 MB / 1.029 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 13
 * Number of states: 0 ()
 * Number of discrete variables: 19 ($whenCondition1,$whenCondition2,heaOff.y,$PRE.heaOff.y,reaToInt3.y,ove.intEqu2.y,ove.y1Fan,reaToInt1.y,ove.or2.y,ove.intEqu4.y,ove.intEqu3.y,terFan.y,ove.con1.y,ove.con.y,ove.conInt6.y,ove.conInt5.y,ove.logSwi1.y,ove.conInt4.y,ove.conInt3.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (31):
 * Single equations (assignments): 30
 * 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 0.0001865/0.3765, allocations: 150.7 kB / 1.336 GB, free: 7.289 MB / 1.029 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 4.895e-05/0.3766, allocations: 31.78 kB / 1.336 GB, free: 7.258 MB / 1.029 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 9.366e-05/0.3767, allocations: 33.34 kB / 1.336 GB, free: 7.223 MB / 1.029 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.833e-06/0.3767, allocations: 4 kB / 1.336 GB, free: 7.219 MB / 1.029 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 7.594e-06/0.3767, allocations: 0 / 1.336 GB, free: 7.219 MB / 1.029 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.284e-06/0.3767, allocations: 7.922 kB / 1.336 GB, free: 7.211 MB / 1.029 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003821/0.3771, allocations: 288.5 kB / 1.336 GB, free: 6.887 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.834e-06/0.3771, allocations: 0 / 1.336 GB, free: 6.887 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002273/0.3773, allocations: 39.95 kB / 1.336 GB, free: 6.848 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (simulation): time 5.19e-06/0.3773, allocations: 3.938 kB / 1.336 GB, free: 6.844 MB / 1.029 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.036e-05/0.3773, allocations: 11.94 kB / 1.336 GB, free: 6.832 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.124e-06/0.3773, allocations: 4 kB / 1.336 GB, free: 6.828 MB / 1.029 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.363e-06/0.3773, allocations: 0 / 1.336 GB, free: 6.828 MB / 1.029 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007435/0.3781, allocations: 276.6 kB / 1.337 GB, free: 6.535 MB / 1.029 GB
Notification: Performance of postOpt removeConstants (simulation): time 6.027e-05/0.3782, allocations: 23.8 kB / 1.337 GB, free: 6.512 MB / 1.029 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.436e-05/0.3782, allocations: 3.938 kB / 1.337 GB, free: 6.508 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000165/0.3783, allocations: 23.97 kB / 1.337 GB, free: 6.484 MB / 1.029 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001134/0.3785, allocations: 31.95 kB / 1.337 GB, free: 6.453 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.987e-05/0.3785, allocations: 8 kB / 1.337 GB, free: 6.445 MB / 1.029 GB
Notification: Performance of sorting global known variables: time 0.0001614/0.3786, allocations: 157.5 kB / 1.337 GB, free: 6.293 MB / 1.029 GB
Notification: Performance of sort global known variables: time 6e-08/0.3786, allocations: 0 / 1.337 GB, free: 6.293 MB / 1.029 GB
Notification: Performance of remove unused functions: time 0.0003321/0.379, allocations: 67.84 kB / 1.337 GB, free: 6.227 MB / 1.029 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 3
 * Number of states: 0 ()
 * Number of discrete variables: 10 ($whenCondition1,$whenCondition2,heaOff.y,ove.y1Fan,ove.intEqu2.y,reaToInt3.y,ove.intEqu3.y,ove.intEqu4.y,ove.or2.y,reaToInt1.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (22):
 * Single equations (assignments): 21
 * 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 0.001136/0.3801, allocations: 0.8284 MB / 1.338 GB, free: 5.363 MB / 1.029 GB
Notification: Performance of simCode: created initialization part: time 0.000812/0.3809, allocations: 287.6 kB / 1.338 GB, free: 5.07 MB / 1.029 GB
Notification: Performance of simCode: created event and clocks part: time 2.786e-06/0.3809, allocations: 0 / 1.338 GB, free: 5.07 MB / 1.029 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003544/0.3813, allocations: 115.8 kB / 1.338 GB, free: 4.957 MB / 1.029 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003305/0.3816, allocations: 41.89 kB / 1.338 GB, free: 4.918 MB / 1.029 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004342/0.386, allocations: 2.589 MB / 1.341 GB, free: 2.156 MB / 1.029 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005084/0.3865, allocations: 0.7597 MB / 1.341 GB, free: 1.371 MB / 1.029 GB
Notification: Performance of simCode: alias equations: time 0.0001636/0.3866, allocations: 38.28 kB / 1.341 GB, free: 1.336 MB / 1.029 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000168/0.3868, allocations: 95.41 kB / 1.342 GB, free: 1.242 MB / 1.029 GB
Notification: Performance of SimCode: time 4.11e-07/0.3868, allocations: 0 / 1.342 GB, free: 1.242 MB / 1.029 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03825/0.425, allocations: 5.992 MB / 1.347 GB, free: 11.44 MB / 1.045 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.52/11.94, allocations: 4.703 kB / 1.347 GB, free: 11.44 MB / 1.045 GB
"
[Timeout remaining time 288]
(rm -f Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.pipe ; mkfifo Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.pipe ; head -c 1048576 < Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.pipe >> ../files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides_res.mat --tempDir=temp_Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_SeriesFanVVF_Subsequences_Validation_Overrides_fmu --startTime=0 --stopTime=3600 --stepSize=1.44 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_SeriesFanVVF_Subsequences_Validation_Overrides.fmu > Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.pipe 2>&1) [Timeout 420.0]
diffSimulationResults("Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_SeriesFanVVF_Subsequences_Validation_Overrides.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.SeriesFanVVF.Subsequences.Validation.Overrides.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 300]
Reference file matches
[Calling sys.exit(0), Time elapsed: 18.870015545049682]