Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.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 0.001478/0.001478, allocations: 113.5 kB / 19.73 MB, free: 2.242 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 0.001671/0.001671, allocations: 217.5 kB / 23.04 MB, free: 5.074 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 1.373/1.373, allocations: 230.6 MB / 256.8 MB, free: 7.984 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo): time 3.017/3.017, allocations: 0.5003 GB / 0.8061 GB, free: 26.73 MB / 0.6231 GB
"
[Timeout remaining time 177]
Using package Buildings with version 13.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/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.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical,fileNamePrefix="Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_Validation_Cylindrical",fmuType="cs",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical,fileNamePrefix="Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_Validation_Cylindrical",fmuType="cs",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 0.001871/0.001871, allocations: 65.67 kB / 1.171 GB, free: 19.77 MB / 0.9044 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3135/0.3154, allocations: 179 MB / 1.345 GB, free: 432 kB / 1.029 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical): time 0.003681/0.319, allocations: 2.296 MB / 1.348 GB, free: 14.11 MB / 1.045 GB
Notification: Performance of NFInst.instExpressions: time 0.003595/0.3226, allocations: 2.468 MB / 1.35 GB, free: 11.63 MB / 1.045 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0001292/0.3228, allocations: 4 kB / 1.35 GB, free: 11.63 MB / 1.045 GB
Notification: Performance of NFTyping.typeComponents: time 0.001453/0.3242, allocations: 0.4928 MB / 1.35 GB, free: 11.14 MB / 1.045 GB
Notification: Performance of NFTyping.typeBindings: time 0.00023/0.3244, allocations: 103.3 kB / 1.351 GB, free: 11.04 MB / 1.045 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0003269/0.3248, allocations: 103.8 kB / 1.351 GB, free: 10.93 MB / 1.045 GB
Notification: Performance of NFFlatten.flatten: time 0.0009642/0.3257, allocations: 0.8538 MB / 1.352 GB, free: 10.08 MB / 1.045 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001218/0.3259, allocations: 32.5 kB / 1.352 GB, free: 10.05 MB / 1.045 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0004409/0.3263, allocations: 283.5 kB / 1.352 GB, free: 9.77 MB / 1.045 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005294/0.3268, allocations: 339.1 kB / 1.352 GB, free: 9.438 MB / 1.045 GB
Notification: Performance of NFPackage.collectConstants: time 9.322e-05/0.3269, allocations: 56 kB / 1.352 GB, free: 9.383 MB / 1.045 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0001197/0.327, allocations: 56 kB / 1.352 GB, free: 9.328 MB / 1.045 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002737/0.3273, allocations: 231.4 kB / 1.352 GB, free: 9.102 MB / 1.045 GB
Notification: Performance of NFVerifyModel.verify: time 0.0003057/0.3276, allocations: 282.9 kB / 1.353 GB, free: 8.824 MB / 1.045 GB
Notification: Performance of NFConvertDAE.convert: time 0.0007806/0.3284, allocations: 0.7357 MB / 1.353 GB, free: 8.086 MB / 1.045 GB
Notification: Performance of FrontEnd - DAE generated: time 3.487e-06/0.3284, allocations: 0 / 1.353 GB, free: 8.086 MB / 1.045 GB
Notification: Performance of FrontEnd: time 1.142e-06/0.3284, allocations: 0 / 1.353 GB, free: 8.086 MB / 1.045 GB
Notification: Performance of Transformations before backend: time 1.195e-05/0.3284, allocations: 0 / 1.353 GB, free: 8.086 MB / 1.045 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 32
 * Number of variables: 32
Notification: Performance of Generate backend data structure: time 0.00236/0.3308, allocations: 0.8737 MB / 1.354 GB, free: 7.172 MB / 1.045 GB
Notification: Performance of prepare preOptimizeDAE: time 4.412e-05/0.3308, allocations: 12.03 kB / 1.354 GB, free: 7.16 MB / 1.045 GB
Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 1.596e-05/0.3308, allocations: 4.188 kB / 1.354 GB, free: 7.156 MB / 1.045 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.503e-05/0.3309, allocations: 46.73 kB / 1.354 GB, free: 7.102 MB / 1.045 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002661/0.3336, allocations: 304.3 kB / 1.355 GB, free: 6.805 MB / 1.045 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00161/0.3352, allocations: 461.3 kB / 1.355 GB, free: 6.328 MB / 1.045 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.073e-05/0.3352, allocations: 28.38 kB / 1.355 GB, free: 6.301 MB / 1.045 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 9.78e-05/0.3353, allocations: 44.12 kB / 1.355 GB, free: 6.258 MB / 1.045 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.000374/0.3357, allocations: 201.5 kB / 1.355 GB, free: 6.055 MB / 1.045 GB
Notification: Performance of preOpt findStateOrder (simulation): time 8.657e-06/0.3357, allocations: 0 / 1.355 GB, free: 6.055 MB / 1.045 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.883e-05/0.3357, allocations: 4 kB / 1.355 GB, free: 6.051 MB / 1.045 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.248e-06/0.3357, allocations: 4 kB / 1.355 GB, free: 6.047 MB / 1.045 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003028/0.336, allocations: 171.9 kB / 1.356 GB, free: 5.879 MB / 1.045 GB
Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.004732/0.3407, allocations: 1.407 MB / 1.357 GB, free: 4.414 MB / 1.045 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.001782/0.3425, allocations: 0.5724 MB / 1.357 GB, free: 3.832 MB / 1.045 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002294/0.3427, allocations: 136.8 kB / 1.358 GB, free: 3.695 MB / 1.045 GB
Notification: Performance of preOpt evalFunc (simulation): time 1.95e-05/0.3428, allocations: 3.938 kB / 1.358 GB, free: 3.691 MB / 1.045 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.001e-05/0.3428, allocations: 38.97 kB / 1.358 GB, free: 3.645 MB / 1.045 GB
Notification: Performance of pre-optimization done (n=24): time 1.673e-06/0.3428, allocations: 0 / 1.358 GB, free: 3.645 MB / 1.045 GB
Notification: Performance of matching and sorting (n=24): time 0.00113/0.3439, allocations: 477.7 kB / 1.358 GB, free: 3.168 MB / 1.045 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.972e-05/0.344, allocations: 55.41 kB / 1.358 GB, free: 3.102 MB / 1.045 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004368/0.3444, allocations: 401.4 kB / 1.359 GB, free: 2.703 MB / 1.045 GB
Notification: Performance of collectPreVariables (initialization): time 9.652e-05/0.3445, allocations: 45.64 kB / 1.359 GB, free: 2.652 MB / 1.045 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001646/0.3447, allocations: 169.2 kB / 1.359 GB, free: 2.484 MB / 1.045 GB
Notification: Performance of collectInitialBindings (initialization): time 0.000132/0.3448, allocations: 99.11 kB / 1.359 GB, free: 2.387 MB / 1.045 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002562/0.3451, allocations: 150.3 kB / 1.359 GB, free: 2.23 MB / 1.045 GB
Notification: Performance of setup shared object (initialization): time 0.000179/0.3452, allocations: 350.8 kB / 1.359 GB, free: 1.879 MB / 1.045 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006108/0.3458, allocations: 337.1 kB / 1.36 GB, free: 1.551 MB / 1.045 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.000638/0.3465, allocations: 401.5 kB / 1.36 GB, free: 1.148 MB / 1.045 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0008798/0.3474, allocations: 0.5685 MB / 1.361 GB, free: 0.5703 MB / 1.045 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.065e-06/0.3474, allocations: 0 / 1.361 GB, free: 0.5703 MB / 1.045 GB
Notification: Performance of matching and sorting (n=78) (initialization): time 0.001641/0.349, allocations: 0.9288 MB / 1.361 GB, free: 15.62 MB / 1.061 GB
Notification: Performance of prepare postOptimizeDAE: time 5.146e-05/0.3491, allocations: 33.7 kB / 1.362 GB, free: 15.59 MB / 1.061 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.915e-06/0.3491, allocations: 0 / 1.362 GB, free: 15.59 MB / 1.061 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0002274/0.3493, allocations: 28.84 kB / 1.362 GB, free: 15.55 MB / 1.061 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008396/0.3501, allocations: 159.8 kB / 1.362 GB, free: 15.4 MB / 1.061 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001259/0.3514, allocations: 1.322 MB / 1.363 GB, free: 13.96 MB / 1.061 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001525/0.3529, allocations: 83.5 kB / 1.363 GB, free: 13.88 MB / 1.061 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.591e-05/0.353, allocations: 23.98 kB / 1.363 GB, free: 13.86 MB / 1.061 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 1
 * 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 (76):
 * Single equations (assignments): 74
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(1,1,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.0002506/0.3532, allocations: 184.8 kB / 1.363 GB, free: 13.67 MB / 1.061 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 7.777e-05/0.3533, allocations: 35.75 kB / 1.363 GB, free: 13.64 MB / 1.061 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 9.447e-05/0.3534, allocations: 39.61 kB / 1.363 GB, free: 13.59 MB / 1.061 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.791e-06/0.3534, allocations: 7.938 kB / 1.363 GB, free: 13.59 MB / 1.061 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.461e-06/0.3534, allocations: 3.938 kB / 1.363 GB, free: 13.58 MB / 1.061 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.49e-06/0.3534, allocations: 3.984 kB / 1.363 GB, free: 13.58 MB / 1.061 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000523/0.3539, allocations: 436.1 kB / 1.364 GB, free: 13.11 MB / 1.061 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.733e-06/0.3539, allocations: 0 / 1.364 GB, free: 13.11 MB / 1.061 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002637/0.3542, allocations: 43.97 kB / 1.364 GB, free: 13.07 MB / 1.061 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0001104/0.3543, allocations: 24.84 kB / 1.364 GB, free: 13.04 MB / 1.061 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.649e-05/0.3543, allocations: 15.98 kB / 1.364 GB, free: 13.02 MB / 1.061 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001132/0.3555, allocations: 1.322 MB / 1.365 GB, free: 11.58 MB / 1.061 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.407e-06/0.3555, allocations: 3.984 kB / 1.365 GB, free: 11.58 MB / 1.061 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008849/0.3564, allocations: 0.6006 MB / 1.366 GB, free: 10.96 MB / 1.061 GB
Notification: Performance of postOpt removeConstants (simulation): time 8.957e-05/0.3565, allocations: 43.75 kB / 1.366 GB, free: 10.91 MB / 1.061 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.665e-05/0.3565, allocations: 8 kB / 1.366 GB, free: 10.91 MB / 1.061 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006244/0.3571, allocations: 15.97 kB / 1.366 GB, free: 10.89 MB / 1.061 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.894e-05/0.3572, allocations: 15.97 kB / 1.366 GB, free: 10.88 MB / 1.061 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.593e-05/0.3572, allocations: 8 kB / 1.366 GB, free: 10.87 MB / 1.061 GB
Notification: Performance of sorting global known variables: time 0.0002955/0.3575, allocations: 263.1 kB / 1.366 GB, free: 10.61 MB / 1.061 GB
Notification: Performance of sort global known variables: time 9.1e-08/0.3575, allocations: 4 kB / 1.366 GB, free: 10.61 MB / 1.061 GB
Notification: Performance of remove unused functions: time 0.0007041/0.3582, allocations: 239.9 kB / 1.366 GB, free: 10.38 MB / 1.061 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 10 (soi.T[1],soi.T[2],soi.T[3],soi.T[4],soi.T[5],soi.T[6],soi.T[7],soi.T[8],soi.T[9],soi.T[10])
 * 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 (23):
 * Single equations (assignments): 22
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(1,1,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.001245/0.3595, allocations: 1.135 MB / 1.367 GB, free: 9.211 MB / 1.061 GB
Notification: Performance of simCode: created initialization part: time 0.001271/0.3607, allocations: 0.7068 MB / 1.368 GB, free: 8.484 MB / 1.061 GB
Notification: Performance of simCode: created event and clocks part: time 2.164e-06/0.3607, allocations: 0 / 1.368 GB, free: 8.484 MB / 1.061 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003427/0.3611, allocations: 250.5 kB / 1.368 GB, free: 8.227 MB / 1.061 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000642/0.3617, allocations: 107.2 kB / 1.368 GB, free: 8.125 MB / 1.061 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007806/0.3695, allocations: 5.496 MB / 1.374 GB, free: 2.535 MB / 1.061 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004683/0.37, allocations: 0.8116 MB / 1.375 GB, free: 1.699 MB / 1.061 GB
Notification: Performance of simCode: alias equations: time 0.0003355/0.3703, allocations: 111.2 kB / 1.375 GB, free: 1.59 MB / 1.061 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002708/0.3706, allocations: 127.4 kB / 1.375 GB, free: 1.465 MB / 1.061 GB
Notification: Performance of SimCode: time 8.52e-07/0.3706, allocations: 0 / 1.375 GB, free: 1.465 MB / 1.061 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04232/0.4129, allocations: 12.4 MB / 1.387 GB, free: 5.312 MB / 1.076 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.81/12.22, allocations: 14.56 kB / 1.387 GB, free: 5.309 MB / 1.076 GB
"
[Timeout remaining time 288]
(rm -f Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.pipe ; mkfifo Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.pipe >> ../files/Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_Validation_Cylindrical_fmu --startTime=0 --stopTime=360000 --stepSize=144 --timeout=800 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_Validation_Cylindrical.fmu > Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.pipe 2>&1) [Timeout 840.0]
diffSimulationResults("Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_Validation_Cylindrical.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.Cylindrical.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: 18.585042666993104]