Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.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 0.00133/0.00133, 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 0.002053/0.002053, allocations: 213 kB / 22.25 MB, free: 5.129 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 1.51/1.51, allocations: 230.6 MB / 256 MB, free: 7.969 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo): time 2.783/2.783, allocations: 476.8 MB / 0.7707 GB, free: 4.23 MB / 0.6231 GB
"
[Timeout remaining time 177]
Using package Buildings with version 11.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.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.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom,fileNamePrefix="Buildings_11_Buildings_Occupants_Residential_AirConditioning_Validation_Ren2014ACBedroom",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom,fileNamePrefix="Buildings_11_Buildings_Occupants_Residential_AirConditioning_Validation_Ren2014ACBedroom",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 0.002103/0.002103, allocations: 65.16 kB / 1.117 GB, free: 40.41 MB / 0.9044 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3467/0.3488, allocations: 170 MB / 1.283 GB, free: 11.67 MB / 0.9825 GB
Notification: Performance of NFInst.instantiate(Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom): time 0.004114/0.353, allocations: 1.543 MB / 1.285 GB, free: 10.12 MB / 0.9825 GB
Notification: Performance of NFInst.instExpressions: time 0.002227/0.3552, allocations: 0.9091 MB / 1.286 GB, free: 9.203 MB / 0.9825 GB
Notification: Performance of NFInst.updateImplicitVariability: time 7.505e-05/0.3553, allocations: 0 / 1.286 GB, free: 9.203 MB / 0.9825 GB
Notification: Performance of NFTyping.typeComponents: time 4.248e-05/0.3553, allocations: 11.86 kB / 1.286 GB, free: 9.191 MB / 0.9825 GB
Notification: Performance of NFTyping.typeBindings: time 8.436e-05/0.3554, allocations: 15.86 kB / 1.286 GB, free: 9.176 MB / 0.9825 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0008839/0.3563, allocations: 175.4 kB / 1.286 GB, free: 9.004 MB / 0.9825 GB
Notification: Performance of NFFlatten.flatten: time 0.0002072/0.3565, allocations: 95.69 kB / 1.286 GB, free: 8.91 MB / 0.9825 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001101/0.3566, allocations: 19.92 kB / 1.286 GB, free: 8.891 MB / 0.9825 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.00018/0.3568, allocations: 47.78 kB / 1.286 GB, free: 8.844 MB / 0.9825 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0001191/0.3569, allocations: 51.81 kB / 1.286 GB, free: 8.793 MB / 0.9825 GB
Notification: Performance of NFPackage.collectConstants: time 2.7e-05/0.3569, allocations: 8 kB / 1.286 GB, free: 8.785 MB / 0.9825 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.000454/0.3574, allocations: 159.8 kB / 1.286 GB, free: 8.629 MB / 0.9825 GB
Notification: Performance of NFScalarize.scalarize: time 4.188e-05/0.3574, allocations: 27.91 kB / 1.286 GB, free: 8.602 MB / 0.9825 GB
Notification: Performance of NFVerifyModel.verify: time 7.245e-05/0.3575, allocations: 35.84 kB / 1.286 GB, free: 8.566 MB / 0.9825 GB
Notification: Performance of NFConvertDAE.convert: time 0.0004838/0.358, allocations: 204 kB / 1.287 GB, free: 8.367 MB / 0.9825 GB
Notification: Performance of FrontEnd - DAE generated: time 3.857e-06/0.358, allocations: 4 kB / 1.287 GB, free: 8.363 MB / 0.9825 GB
Notification: Performance of FrontEnd: time 1.794e-06/0.358, allocations: 0 / 1.287 GB, free: 8.363 MB / 0.9825 GB
Notification: Performance of Transformations before backend: time 6.242e-06/0.358, allocations: 0 / 1.287 GB, free: 8.363 MB / 0.9825 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 9
 * Number of variables: 9
Notification: Performance of Generate backend data structure: time 0.0009605/0.3589, allocations: 409 kB / 1.287 GB, free: 7.922 MB / 0.9825 GB
Notification: Performance of prepare preOptimizeDAE: time 5.267e-05/0.359, allocations: 12.02 kB / 1.287 GB, free: 7.91 MB / 0.9825 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.326e-05/0.359, allocations: 30.75 kB / 1.287 GB, free: 7.871 MB / 0.9825 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004299/0.3595, allocations: 44.81 kB / 1.287 GB, free: 7.828 MB / 0.9825 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003246/0.3598, allocations: 130.4 kB / 1.287 GB, free: 7.676 MB / 0.9825 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.518e-05/0.3598, allocations: 12.31 kB / 1.287 GB, free: 7.664 MB / 0.9825 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 2.204e-05/0.3599, allocations: 4.375 kB / 1.287 GB, free: 7.66 MB / 0.9825 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003119/0.3602, allocations: 85.77 kB / 1.287 GB, free: 7.57 MB / 0.9825 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.127e-05/0.3602, allocations: 0 / 1.287 GB, free: 7.57 MB / 0.9825 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.95e-05/0.3602, allocations: 4 kB / 1.287 GB, free: 7.566 MB / 0.9825 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.561e-06/0.3602, allocations: 0 / 1.287 GB, free: 7.566 MB / 0.9825 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000249/0.3605, allocations: 55.95 kB / 1.287 GB, free: 7.512 MB / 0.9825 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0007716/0.3612, allocations: 295.7 kB / 1.288 GB, free: 7.18 MB / 0.9825 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0003376/0.3616, allocations: 74.53 kB / 1.288 GB, free: 7.098 MB / 0.9825 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001605/0.3617, allocations: 44.84 kB / 1.288 GB, free: 7.051 MB / 0.9825 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.472e-05/0.3617, allocations: 0 / 1.288 GB, free: 7.051 MB / 0.9825 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002198/0.362, allocations: 95.39 kB / 1.288 GB, free: 6.945 MB / 0.9825 GB
Notification: Performance of pre-optimization done (n=8): time 1.172e-06/0.362, allocations: 0 / 1.288 GB, free: 6.945 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=8): time 0.0005302/0.3625, allocations: 181.7 kB / 1.288 GB, free: 6.762 MB / 0.9825 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.363e-05/0.3626, allocations: 67.38 kB / 1.288 GB, free: 6.684 MB / 0.9825 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001247/0.3627, allocations: 136.5 kB / 1.288 GB, free: 6.543 MB / 0.9825 GB
Notification: Performance of collectPreVariables (initialization): time 2.192e-05/0.3627, allocations: 25.7 kB / 1.288 GB, free: 6.512 MB / 0.9825 GB
Notification: Performance of collectInitialEqns (initialization): time 6.847e-05/0.3628, allocations: 96.14 kB / 1.288 GB, free: 6.414 MB / 0.9825 GB
Notification: Performance of collectInitialBindings (initialization): time 2.852e-05/0.3628, allocations: 27.78 kB / 1.288 GB, free: 6.387 MB / 0.9825 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 4.915e-05/0.3628, allocations: 25.72 kB / 1.288 GB, free: 6.355 MB / 0.9825 GB
Notification: Performance of setup shared object (initialization): time 0.0002055/0.363, allocations: 326.8 kB / 1.289 GB, free: 6.027 MB / 0.9825 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 8.013e-05/0.3631, allocations: 27.98 kB / 1.289 GB, free: 6 MB / 0.9825 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001097/0.3632, allocations: 76.61 kB / 1.289 GB, free: 5.906 MB / 0.9825 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003283/0.3636, allocations: 105.9 kB / 1.289 GB, free: 5.781 MB / 0.9825 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.425e-06/0.3636, allocations: 0 / 1.289 GB, free: 5.781 MB / 0.9825 GB
Notification: Performance of matching and sorting (n=13) (initialization): time 0.0003916/0.364, allocations: 133.6 kB / 1.289 GB, free: 5.645 MB / 0.9825 GB
Notification: Performance of prepare postOptimizeDAE: time 1.854e-05/0.364, allocations: 7.938 kB / 1.289 GB, free: 5.637 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.332e-06/0.364, allocations: 0 / 1.289 GB, free: 5.637 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.724e-05/0.364, allocations: 4 kB / 1.289 GB, free: 5.633 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002088/0.3642, allocations: 19.92 kB / 1.289 GB, free: 5.613 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.969e-06/0.3642, allocations: 3.984 kB / 1.289 GB, free: 5.609 MB / 0.9825 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001035/0.3643, allocations: 7.953 kB / 1.289 GB, free: 5.602 MB / 0.9825 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.487e-05/0.3644, allocations: 12 kB / 1.289 GB, free: 5.59 MB / 0.9825 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 7
 * Number of states: 0 ()
 * Number of discrete variables: 11 (ac.curSeed,$PRE.ac.curSeed,ac.pOff,$PRE.ac.pOff,ac.pOn,$PRE.ac.pOn,ac.on,$PRE.ac.on,occ.y,ac.sampleTrigger,$whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (13):
 * Single equations (assignments): 13
 * Array equations: 0
 * Algorithm blocks: 0
 * 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 0.0001466/0.3645, allocations: 129.7 kB / 1.289 GB, free: 5.453 MB / 0.9825 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 2.902e-05/0.3645, allocations: 7.953 kB / 1.289 GB, free: 5.445 MB / 0.9825 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.214e-05/0.3646, allocations: 12.72 kB / 1.289 GB, free: 5.43 MB / 0.9825 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.554e-06/0.3646, allocations: 0 / 1.289 GB, free: 5.43 MB / 0.9825 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.98e-06/0.3646, allocations: 0 / 1.289 GB, free: 5.43 MB / 0.9825 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.089e-05/0.3646, allocations: 4 kB / 1.289 GB, free: 5.426 MB / 0.9825 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006648/0.3653, allocations: 409.4 kB / 1.29 GB, free: 4.977 MB / 0.9825 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.623e-06/0.3653, allocations: 0 / 1.29 GB, free: 4.977 MB / 0.9825 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 3.895e-05/0.3653, allocations: 8 kB / 1.29 GB, free: 4.969 MB / 0.9825 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.834e-06/0.3653, allocations: 0 / 1.29 GB, free: 4.969 MB / 0.9825 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.507e-05/0.3653, allocations: 4 kB / 1.29 GB, free: 4.965 MB / 0.9825 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.366e-06/0.3653, allocations: 3.938 kB / 1.29 GB, free: 4.961 MB / 0.9825 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.426e-06/0.3653, allocations: 3.984 kB / 1.29 GB, free: 4.957 MB / 0.9825 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003802/0.3657, allocations: 239.5 kB / 1.29 GB, free: 4.707 MB / 0.9825 GB
Notification: Performance of postOpt removeConstants (simulation): time 1.486e-05/0.3657, allocations: 11.94 kB / 1.29 GB, free: 4.695 MB / 0.9825 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.466e-05/0.3657, allocations: 4 kB / 1.29 GB, free: 4.691 MB / 0.9825 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001183/0.3659, allocations: 11.94 kB / 1.29 GB, free: 4.68 MB / 0.9825 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 4.022e-05/0.3659, allocations: 7.984 kB / 1.29 GB, free: 4.672 MB / 0.9825 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.162e-05/0.3659, allocations: 7.922 kB / 1.29 GB, free: 4.664 MB / 0.9825 GB
Notification: Performance of sorting global known variables: time 7.628e-05/0.366, allocations: 103.3 kB / 1.29 GB, free: 4.562 MB / 0.9825 GB
Notification: Performance of sort global known variables: time 7e-08/0.366, allocations: 0 / 1.29 GB, free: 4.562 MB / 0.9825 GB
Notification: Performance of remove unused functions: time 0.000352/0.3663, allocations: 51.86 kB / 1.29 GB, free: 4.512 MB / 0.9825 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 7 (ac.sampleTrigger,$whenCondition1,occ.y,ac.on,ac.pOn,ac.pOff,ac.curSeed)
 * Number of discrete states: 1 (ac.on)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (8):
 * Single equations (assignments): 4
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 4
 * 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 0.001181/0.3675, allocations: 0.8506 MB / 1.291 GB, free: 3.648 MB / 0.9825 GB
Notification: Performance of simCode: created initialization part: time 0.0002752/0.3678, allocations: 87.83 kB / 1.291 GB, free: 3.562 MB / 0.9825 GB
Notification: Performance of simCode: created event and clocks part: time 1.763e-06/0.3678, allocations: 0 / 1.291 GB, free: 3.562 MB / 0.9825 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001315/0.3679, allocations: 43.97 kB / 1.291 GB, free: 3.52 MB / 0.9825 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002882/0.3682, allocations: 18.81 kB / 1.291 GB, free: 3.504 MB / 0.9825 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002079/0.3703, allocations: 1.605 MB / 1.293 GB, free: 1.785 MB / 0.9825 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003259/0.3706, allocations: 0.6961 MB / 1.293 GB, free: 1.062 MB / 0.9825 GB
Notification: Performance of simCode: alias equations: time 3.667e-05/0.3707, allocations: 7.984 kB / 1.293 GB, free: 1.055 MB / 0.9825 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 6.591e-05/0.3707, allocations: 27.44 kB / 1.293 GB, free: 1.027 MB / 0.9825 GB
Notification: Performance of SimCode: time 3.3e-07/0.3707, allocations: 0 / 1.293 GB, free: 1.027 MB / 0.9825 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.0503/0.421, allocations: 3.439 MB / 1.297 GB, free: 13.74 MB / 0.9981 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.19/11.61, allocations: 8.75 kB / 1.297 GB, free: 13.73 MB / 0.9981 GB
"
[Timeout remaining time 288]
(rm -f Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.pipe ; mkfifo Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.pipe ; head -c 1048576 < Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.pipe >> ../files/Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.sim & python3 -m fmpy simulate  --output-file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv --start-time 0 --stop-time 3600 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 1.44 Buildings_11_Buildings_Occupants_Residential_AirConditioning_Validation_Ren2014ACBedroom.fmu > Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.pipe 2>&1) [Timeout 420.0]
diffSimulationResults("Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Occupants_Residential_AirConditioning_Validation_Ren2014ACBedroom.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
"Error: Could not read variable ac.TIn in file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv.
Warning: Get data of variable ac.TIn from file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv failed!
Error: Could not read variable ac.occ in file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv.
Warning: Get data of variable ac.occ from file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv failed!
Error: Could not read variable ac.on in file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv.
Warning: Get data of variable ac.on from file Buildings_11_Buildings.Occupants.Residential.AirConditioning.Validation.Ren2014ACBedroom_res.csv failed!
"
[Timeout remaining time 300]
Reference file matches
[Calling sys.exit(0), Time elapsed: 18.48582650699973]