Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.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 0.0008328/0.0008328, allocations: 80.44 kB / 19.17 MB, free: 0.7422 MB / 13.93 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 0.0009869/0.0009869, allocations: 165.9 kB / 22.46 MB, free: 2.105 MB / 18.57 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 0.8366/0.8366, allocations: 177.1 MB / 202.8 MB, free: 5.758 MB / 186.7 MB
"
[Timeout remaining time 179]
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 1.713/1.713, allocations: 389 MB / 0.633 GB, free: 12.69 MB / 0.6042 GB
"
[Timeout remaining time 178]
Using package Buildings with version 13.0.1 (/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.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length,fileNamePrefix="Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_ThermalResponseFactors_Validation_FiniteLineSource_Integrand_Length",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length,fileNamePrefix="Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_ThermalResponseFactors_Validation_FiniteLineSource_Integrand_Length",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 1.753e-06/1.753e-06, allocations: 0 / 0.9997 GB, free: 13.43 MB / 0.9636 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.839e-05/2.014e-05, allocations: 6.281 kB / 0.9998 GB, free: 13.43 MB / 0.9636 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length): time 0.001812/0.001832, allocations: 1.384 MB / 1.001 GB, free: 12.03 MB / 0.9636 GB
Notification: Performance of NFInst.instExpressions: time 0.0009473/0.002779, allocations: 0.7564 MB / 1.002 GB, free: 11.27 MB / 0.9636 GB
Notification: Performance of NFInst.updateImplicitVariability: time 2.841e-05/0.002807, allocations: 0 / 1.002 GB, free: 11.27 MB / 0.9636 GB
Notification: Performance of NFTyping.typeComponents: time 2.054e-05/0.002828, allocations: 3.984 kB / 1.002 GB, free: 11.27 MB / 0.9636 GB
Notification: Performance of NFTyping.typeBindings: time 4.455e-05/0.002873, allocations: 11.88 kB / 1.002 GB, free: 11.25 MB / 0.9636 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0006197/0.003492, allocations: 183.3 kB / 1.002 GB, free: 11.07 MB / 0.9636 GB
Notification: Performance of NFFlatten.flatten: time 6.721e-05/0.00356, allocations: 47.84 kB / 1.002 GB, free: 11.03 MB / 0.9636 GB
Notification: Performance of NFFlatten.resolveConnections: time 3.641e-05/0.003596, allocations: 4 kB / 1.002 GB, free: 11.02 MB / 0.9636 GB
Notification: Performance of NFEvalConstants.evaluate: time 5.463e-05/0.003651, allocations: 39.83 kB / 1.002 GB, free: 10.98 MB / 0.9636 GB
Notification: Performance of NFSimplifyModel.simplify: time 3.367e-05/0.003684, allocations: 15.98 kB / 1.002 GB, free: 10.97 MB / 0.9636 GB
Notification: Performance of NFPackage.collectConstants: time 1.623e-05/0.0037, allocations: 4 kB / 1.002 GB, free: 10.96 MB / 0.9636 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0003384/0.004039, allocations: 195.5 kB / 1.002 GB, free: 10.77 MB / 0.9636 GB
Notification: Performance of NFScalarize.scalarize: time 1.438e-05/0.004053, allocations: 15.92 kB / 1.002 GB, free: 10.76 MB / 0.9636 GB
Notification: Performance of NFVerifyModel.verify: time 2.376e-05/0.004077, allocations: 15.98 kB / 1.002 GB, free: 10.74 MB / 0.9636 GB
Notification: Performance of NFConvertDAE.convert: time 0.0001942/0.004271, allocations: 175.5 kB / 1.003 GB, free: 10.57 MB / 0.9636 GB
Notification: Performance of FrontEnd - DAE generated: time 2.134e-06/0.004273, allocations: 0 / 1.003 GB, free: 10.57 MB / 0.9636 GB
Notification: Performance of FrontEnd: time 1.203e-06/0.004275, allocations: 0 / 1.003 GB, free: 10.57 MB / 0.9636 GB
Notification: Performance of Transformations before backend: time 4.228e-06/0.004279, allocations: 4 kB / 1.003 GB, free: 10.57 MB / 0.9636 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 6
 * Number of variables: 6
Notification: Performance of Generate backend data structure: time 0.000305/0.004584, allocations: 297.9 kB / 1.003 GB, free: 10.25 MB / 0.9636 GB
Notification: Performance of prepare preOptimizeDAE: time 3.612e-05/0.00462, allocations: 12.03 kB / 1.003 GB, free: 10.23 MB / 0.9636 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.094e-05/0.004651, allocations: 30.75 kB / 1.003 GB, free: 10.2 MB / 0.9636 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 2.262e-05/0.004673, allocations: 0.9375 kB / 1.003 GB, free: 10.2 MB / 0.9636 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 7.149e-05/0.004745, allocations: 117.7 kB / 1.003 GB, free: 10.05 MB / 0.9636 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.009e-05/0.004755, allocations: 4.375 kB / 1.003 GB, free: 10.05 MB / 0.9636 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 1.029e-05/0.004765, allocations: 8.312 kB / 1.003 GB, free: 10.04 MB / 0.9636 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001042/0.004869, allocations: 54.23 kB / 1.003 GB, free: 9.984 MB / 0.9636 GB
Notification: Performance of preOpt findStateOrder (simulation): time 6.543e-06/0.004876, allocations: 192 / 1.003 GB, free: 9.984 MB / 0.9636 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.397e-06/0.004885, allocations: 4.125 kB / 1.003 GB, free: 9.98 MB / 0.9636 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.609e-06/0.00489, allocations: 0 / 1.003 GB, free: 9.98 MB / 0.9636 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 7.582e-05/0.004966, allocations: 43.95 kB / 1.003 GB, free: 9.938 MB / 0.9636 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001319/0.005098, allocations: 144.8 kB / 1.003 GB, free: 9.754 MB / 0.9636 GB
Notification: Performance of preOpt comSubExp (simulation): time 7.578e-05/0.005174, allocations: 42.56 kB / 1.003 GB, free: 9.703 MB / 0.9636 GB
Notification: Performance of preOpt resolveLoops (simulation): time 3.641e-05/0.00521, allocations: 32.91 kB / 1.003 GB, free: 9.668 MB / 0.9636 GB
Notification: Performance of preOpt evalFunc (simulation): time 1.822e-05/0.005228, allocations: 0 / 1.003 GB, free: 9.668 MB / 0.9636 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.668e-05/0.005245, allocations: 34.56 kB / 1.003 GB, free: 9.625 MB / 0.9636 GB
Notification: Performance of pre-optimization done (n=6): time 6.11e-07/0.005246, allocations: 0 / 1.003 GB, free: 9.625 MB / 0.9636 GB
Notification: Performance of matching and sorting (n=6): time 0.0001777/0.005423, allocations: 89.56 kB / 1.003 GB, free: 9.531 MB / 0.9636 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.652e-05/0.00545, allocations: 55.34 kB / 1.003 GB, free: 9.465 MB / 0.9636 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.909e-05/0.005509, allocations: 113.8 kB / 1.004 GB, free: 9.344 MB / 0.9636 GB
Notification: Performance of collectPreVariables (initialization): time 8.937e-06/0.005518, allocations: 25.7 kB / 1.004 GB, free: 9.312 MB / 0.9636 GB
Notification: Performance of collectInitialEqns (initialization): time 3.116e-05/0.005549, allocations: 88.14 kB / 1.004 GB, free: 9.223 MB / 0.9636 GB
Notification: Performance of collectInitialBindings (initialization): time 2.982e-05/0.005579, allocations: 19.84 kB / 1.004 GB, free: 9.203 MB / 0.9636 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.985e-05/0.005609, allocations: 17.72 kB / 1.004 GB, free: 9.18 MB / 0.9636 GB
Notification: Performance of setup shared object (initialization): time 7.103e-05/0.00568, allocations: 330.8 kB / 1.004 GB, free: 8.848 MB / 0.9636 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 2.519e-05/0.005705, allocations: 8 kB / 1.004 GB, free: 8.84 MB / 0.9636 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 2.376e-05/0.005729, allocations: 15.98 kB / 1.004 GB, free: 8.824 MB / 0.9636 GB
Notification: Performance of analyzeInitialSystem (initialization): time 5.957e-05/0.005788, allocations: 32.86 kB / 1.004 GB, free: 8.789 MB / 0.9636 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.573e-06/0.00579, allocations: 0 / 1.004 GB, free: 8.789 MB / 0.9636 GB
Notification: Performance of matching and sorting (n=6) (initialization): time 9.233e-05/0.005882, allocations: 77.62 kB / 1.004 GB, free: 8.707 MB / 0.9636 GB
Notification: Performance of prepare postOptimizeDAE: time 1.232e-05/0.005894, allocations: 4 kB / 1.004 GB, free: 8.703 MB / 0.9636 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.618e-06/0.005899, allocations: 0 / 1.004 GB, free: 8.703 MB / 0.9636 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.135e-05/0.00591, allocations: 3.938 kB / 1.004 GB, free: 8.699 MB / 0.9636 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 7.713e-05/0.005987, allocations: 15.94 kB / 1.004 GB, free: 8.684 MB / 0.9636 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.008e-06/0.005991, allocations: 4 kB / 1.004 GB, free: 8.68 MB / 0.9636 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 1.796e-05/0.006009, allocations: 3.984 kB / 1.004 GB, free: 8.676 MB / 0.9636 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.224e-06/0.006017, allocations: 4.438 kB / 1.004 GB, free: 8.672 MB / 0.9636 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 (6):
 * Single equations (assignments): 6
 * 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 5.422e-05/0.006071, allocations: 113.8 kB / 1.004 GB, free: 8.551 MB / 0.9636 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 7.234e-06/0.006078, allocations: 0 / 1.004 GB, free: 8.551 MB / 0.9636 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002615/0.00634, allocations: 216.8 kB / 1.005 GB, free: 8.344 MB / 0.9636 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.224e-06/0.006342, allocations: 0 / 1.005 GB, free: 8.344 MB / 0.9636 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.248e-06/0.006346, allocations: 0 / 1.005 GB, free: 8.344 MB / 0.9636 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.787e-06/0.00635, allocations: 4 kB / 1.005 GB, free: 8.34 MB / 0.9636 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001005/0.00645, allocations: 160.7 kB / 1.005 GB, free: 8.141 MB / 0.9636 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.493e-06/0.006452, allocations: 0 / 1.005 GB, free: 8.141 MB / 0.9636 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.937e-05/0.006511, allocations: 31.92 kB / 1.005 GB, free: 8.109 MB / 0.9636 GB
Notification: Performance of postOpt tearingSystem (simulation): time 3.677e-06/0.006515, allocations: 3.984 kB / 1.005 GB, free: 8.105 MB / 0.9636 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.157e-05/0.006527, allocations: 15.92 kB / 1.005 GB, free: 8.09 MB / 0.9636 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.683e-06/0.006528, allocations: 0 / 1.005 GB, free: 8.09 MB / 0.9636 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.092e-06/0.006529, allocations: 4 kB / 1.005 GB, free: 8.086 MB / 0.9636 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001375/0.006667, allocations: 143.2 kB / 1.005 GB, free: 7.93 MB / 0.9636 GB
Notification: Performance of postOpt removeConstants (simulation): time 4.663e-05/0.006713, allocations: 23.92 kB / 1.005 GB, free: 7.906 MB / 0.9636 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.231e-05/0.006726, allocations: 3.938 kB / 1.005 GB, free: 7.902 MB / 0.9636 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 1.814e-05/0.006744, allocations: 7.938 kB / 1.005 GB, free: 7.895 MB / 0.9636 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 2.308e-05/0.006767, allocations: 23.84 kB / 1.005 GB, free: 7.871 MB / 0.9636 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.22e-06/0.006772, allocations: 4 kB / 1.005 GB, free: 7.867 MB / 0.9636 GB
Notification: Performance of sorting global known variables: time 0.0002801/0.007052, allocations: 87.59 kB / 1.005 GB, free: 7.781 MB / 0.9636 GB
Notification: Performance of sort global known variables: time 5e-08/0.007052, allocations: 0 / 1.005 GB, free: 7.781 MB / 0.9636 GB
Notification: Performance of remove unused functions: time 0.0001991/0.007251, allocations: 55.86 kB / 1.005 GB, free: 7.727 MB / 0.9636 GB
Notification: Model statistics after passing the back-end for simulation:
 * 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 simulation (16):
 * Single equations (assignments): 16
 * 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 Backend phase and start with SimCode phase: time 0.000484/0.007735, allocations: 0.7605 MB / 1.006 GB, free: 6.934 MB / 0.9636 GB
Notification: Performance of simCode: created initialization part: time 0.0001196/0.007855, allocations: 55.91 kB / 1.006 GB, free: 6.879 MB / 0.9636 GB
Notification: Performance of simCode: created event and clocks part: time 1.693e-06/0.007857, allocations: 0 / 1.006 GB, free: 6.879 MB / 0.9636 GB
Notification: Performance of simCode: created simulation system equations: time 4.266e-05/0.007899, allocations: 46.73 kB / 1.006 GB, free: 6.836 MB / 0.9636 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002125/0.008112, allocations: 19.97 kB / 1.006 GB, free: 6.816 MB / 0.9636 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0004164/0.008528, allocations: 250.1 kB / 1.006 GB, free: 6.531 MB / 0.9636 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 4.692e-05/0.008575, allocations: 83.27 kB / 1.006 GB, free: 6.43 MB / 0.9636 GB
Notification: Performance of simCode: alias equations: time 4.071e-05/0.008616, allocations: 19.31 kB / 1.006 GB, free: 6.414 MB / 0.9636 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 5.285e-05/0.008669, allocations: 32.48 kB / 1.006 GB, free: 6.383 MB / 0.9636 GB
Notification: Performance of SimCode: time 5.91e-07/0.008669, allocations: 0 / 1.006 GB, free: 6.383 MB / 0.9636 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01808/0.02675, allocations: 4.165 MB / 1.01 GB, free: 2.477 MB / 0.9636 GB
Notification: Performance of buildModelFMU: Generate platform static: time 6.537/6.563, allocations: 9.109 kB / 1.01 GB, free: 2.469 MB / 0.9636 GB
"
[Timeout remaining time 293]
(rm -f Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.pipe ; mkfifo Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.pipe >> ../files/Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_ThermalResponseFactors_Validation_FiniteLineSource_Integrand_Length_fmu --startTime=0.01 --stopTime=500 --stepSize=0.199996 --timeout=800 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_ThermalResponseFactors_Validation_FiniteLineSource_Integrand_Length.fmu > Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.pipe 2>&1) [Timeout 840.0]
diffSimulationResults("Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_Geothermal_Borefields_BaseClasses_HeatTransfer_ThermalResponseFactors_Validation_FiniteLineSource_Integrand_Length.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.Validation.FiniteLineSource_Integrand_Length.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: 10.450924915261567]