Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.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 0.001733/0.001733, allocations: 88.72 kB / 19.44 MB, free: 356 kB / 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 0.002195/0.002195, allocations: 157.7 kB / 22.75 MB, free: 1.684 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 1.51/1.51, allocations: 177.1 MB / 203.1 MB, free: 5.602 MB / 186.7 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 3.24/3.24, allocations: 429.6 MB / 0.673 GB, free: 3.879 MB / 0.6355 GB
"
[Timeout remaining time 176]
Using package Buildings with version 14.0.0 (/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: translateModel(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|actAirSet.uOpeMod|actAirSet.VCooMax_flow|actAirSet.VOccMin_flow|actAirSet.VActCooMax_flow|actAirSet.VActMin_flow",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow")
translateModel(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|actAirSet.uOpeMod|actAirSet.VCooMax_flow|actAirSet.VOccMin_flow|actAirSet.VActCooMax_flow|actAirSet.VActMin_flow",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 5.731e-06/5.731e-06, allocations: 4 kB / 0.8776 GB, free: 6.441 MB / 0.8386 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 3.836e-05/4.409e-05, allocations: 2.312 kB / 0.8776 GB, free: 6.438 MB / 0.8386 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow): time 0.002689/0.002733, allocations: 0.9783 MB / 0.8786 GB, free: 5.492 MB / 0.8386 GB
Notification: Performance of NFInst.instExpressions: time 0.001683/0.004416, allocations: 1.013 MB / 0.8796 GB, free: 4.469 MB / 0.8386 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0001412/0.004557, allocations: 4 kB / 0.8796 GB, free: 4.465 MB / 0.8386 GB
Notification: Performance of NFTyping.typeComponents: time 6.788e-05/0.004625, allocations: 15.8 kB / 0.8796 GB, free: 4.449 MB / 0.8386 GB
Notification: Performance of NFTyping.typeBindings: time 0.0001597/0.004785, allocations: 24.45 kB / 0.8796 GB, free: 4.426 MB / 0.8386 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0003237/0.005109, allocations: 61.09 kB / 0.8797 GB, free: 4.367 MB / 0.8386 GB
Notification: Performance of NFFlatten.flatten: time 0.0002881/0.005397, allocations: 168.1 kB / 0.8798 GB, free: 4.199 MB / 0.8386 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0002123/0.005609, allocations: 65.69 kB / 0.8799 GB, free: 4.137 MB / 0.8386 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.000335/0.005944, allocations: 111.6 kB / 0.88 GB, free: 4.027 MB / 0.8386 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0001271/0.006071, allocations: 51.86 kB / 0.88 GB, free: 3.977 MB / 0.8386 GB
Notification: Performance of NFPackage.collectConstants: time 4.548e-05/0.006117, allocations: 17.03 kB / 0.8801 GB, free: 3.961 MB / 0.8386 GB
Notification: Performance of NFFlatten.collectFunctions: time 7.004e-05/0.006187, allocations: 20 kB / 0.8801 GB, free: 3.941 MB / 0.8386 GB
Notification: Performance of NFScalarize.scalarize: time 5.675e-05/0.006243, allocations: 44.95 kB / 0.8801 GB, free: 3.898 MB / 0.8386 GB
Notification: Performance of NFVerifyModel.verify: time 7.062e-05/0.006314, allocations: 43.91 kB / 0.8802 GB, free: 3.855 MB / 0.8386 GB
Notification: Performance of NFConvertDAE.convert: time 0.0003994/0.006713, allocations: 227.2 kB / 0.8804 GB, free: 3.633 MB / 0.8386 GB
Notification: Performance of FrontEnd - DAE generated: time 3.176e-06/0.006717, allocations: 1.094 kB / 0.8804 GB, free: 3.633 MB / 0.8386 GB
Notification: Performance of FrontEnd: time 6.42e-07/0.006717, allocations: 0 / 0.8804 GB, free: 3.633 MB / 0.8386 GB
Notification: Performance of Transformations before backend: time 7.063e-06/0.006724, allocations: 0 / 0.8804 GB, free: 3.633 MB / 0.8386 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 35
 * Number of variables: 35
Notification: Performance of Generate backend data structure: time 0.0009359/0.00766, allocations: 382.6 kB / 0.8807 GB, free: 3.227 MB / 0.8386 GB
Notification: Performance of prepare preOptimizeDAE: time 4.027e-05/0.0077, allocations: 8.031 kB / 0.8808 GB, free: 3.219 MB / 0.8386 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002006/0.007901, allocations: 37.55 kB / 0.8808 GB, free: 3.184 MB / 0.8386 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.000498/0.008399, allocations: 200.5 kB / 0.881 GB, free: 2.965 MB / 0.8386 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.88e-05/0.008428, allocations: 12.38 kB / 0.881 GB, free: 2.953 MB / 0.8386 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 2.517e-05/0.008453, allocations: 12.91 kB / 0.881 GB, free: 2.941 MB / 0.8386 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003921/0.008845, allocations: 152.3 kB / 0.8812 GB, free: 2.789 MB / 0.8386 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.28e-05/0.008858, allocations: 4.125 kB / 0.8812 GB, free: 2.785 MB / 0.8386 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.945e-05/0.008877, allocations: 4.375 kB / 0.8812 GB, free: 2.781 MB / 0.8386 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.28e-06/0.008883, allocations: 4.969 kB / 0.8812 GB, free: 2.777 MB / 0.8386 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003902/0.009273, allocations: 118.6 kB / 0.8813 GB, free: 2.664 MB / 0.8386 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.000711/0.009984, allocations: 388 kB / 0.8816 GB, free: 2.254 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0003564/0.01034, allocations: 118 kB / 0.8818 GB, free: 2.133 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001661/0.01051, allocations: 48.83 kB / 0.8818 GB, free: 2.082 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.49e-05/0.01053, allocations: 4 kB / 0.8818 GB, free: 2.078 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.179e-05/0.01056, allocations: 30.56 kB / 0.8818 GB, free: 2.039 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=12): time 1.082e-06/0.01056, allocations: 0 / 0.8818 GB, free: 2.039 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=12): time 0.0006455/0.01121, allocations: 190.7 kB / 0.882 GB, free: 1.848 MB / 0.8386 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.589e-05/0.01126, allocations: 51.41 kB / 0.8821 GB, free: 1.785 MB / 0.8386 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001811/0.01144, allocations: 161.7 kB / 0.8822 GB, free: 1.613 MB / 0.8386 GB
Notification: Performance of collectPreVariables (initialization): time 2.918e-05/0.01147, allocations: 29.7 kB / 0.8823 GB, free: 1.578 MB / 0.8386 GB
Notification: Performance of collectInitialEqns (initialization): time 9.892e-05/0.01156, allocations: 124.4 kB / 0.8824 GB, free: 1.453 MB / 0.8386 GB
Notification: Performance of collectInitialBindings (initialization): time 3.952e-05/0.0116, allocations: 35.73 kB / 0.8824 GB, free: 1.418 MB / 0.8386 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 7.443e-05/0.01168, allocations: 41.66 kB / 0.8824 GB, free: 1.371 MB / 0.8386 GB
Notification: Performance of setup shared object (initialization): time 0.0001784/0.01186, allocations: 322.8 kB / 0.8828 GB, free: 1.047 MB / 0.8386 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001655/0.01202, allocations: 39.97 kB / 0.8828 GB, free: 1.008 MB / 0.8386 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.000198/0.01222, allocations: 75.39 kB / 0.8829 GB, free: 0.9219 MB / 0.8386 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003275/0.01255, allocations: 111.3 kB / 0.883 GB, free: 0.8008 MB / 0.8386 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.854e-06/0.01255, allocations: 0 / 0.883 GB, free: 0.8008 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=15) (initialization): time 0.0004245/0.01297, allocations: 157.4 kB / 0.8831 GB, free: 0.6406 MB / 0.8386 GB
Notification: Performance of prepare postOptimizeDAE: time 1.751e-05/0.01299, allocations: 7.984 kB / 0.8831 GB, free: 0.6328 MB / 0.8386 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.33e-06/0.013, allocations: 4 kB / 0.8831 GB, free: 0.6289 MB / 0.8386 GB
Notification: Performance of postOpt tearingSystem (initialization): time 2.036e-05/0.01302, allocations: 8.031 kB / 0.8831 GB, free: 0.6211 MB / 0.8386 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001917/0.01321, allocations: 31.98 kB / 0.8832 GB, free: 0.5898 MB / 0.8386 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.232e-06/0.01322, allocations: 0 / 0.8832 GB, free: 0.5898 MB / 0.8386 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001078/0.01332, allocations: 19.88 kB / 0.8832 GB, free: 0.5703 MB / 0.8386 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.406e-05/0.01334, allocations: 4 kB / 0.8832 GB, free: 0.5664 MB / 0.8386 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 4
 * Number of states: 0 ()
 * Number of discrete variables: 9 (reaToInt2.y,actAirSet.or2.y,actAirSet.ifSetUp.y,actAirSet.ifCooDow.y,actAirSet.ifOcc.y,actAirSet.or3.y,actAirSet.setUpMod.y,actAirSet.cooDowMod.y,actAirSet.occMod.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (15):
 * Single equations (assignments): 15
 * 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 0.0001342/0.01347, allocations: 129.8 kB / 0.8833 GB, free: 440 kB / 0.8386 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 4.521e-05/0.01352, allocations: 15.89 kB / 0.8833 GB, free: 424 kB / 0.8386 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.332e-05/0.01356, allocations: 20.77 kB / 0.8834 GB, free: 404 kB / 0.8386 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.054e-06/0.01356, allocations: 4 kB / 0.8834 GB, free: 400 kB / 0.8386 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.478e-06/0.01357, allocations: 0 / 0.8834 GB, free: 400 kB / 0.8386 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.906e-06/0.01357, allocations: 0 / 0.8834 GB, free: 400 kB / 0.8386 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002343/0.0138, allocations: 165.2 kB / 0.8835 GB, free: 204 kB / 0.8386 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.052e-06/0.0138, allocations: 0 / 0.8835 GB, free: 204 kB / 0.8386 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000129/0.01393, allocations: 19.98 kB / 0.8835 GB, free: 184 kB / 0.8386 GB
Notification: Performance of postOpt tearingSystem (simulation): time 7.103e-06/0.01394, allocations: 7.922 kB / 0.8835 GB, free: 176 kB / 0.8386 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.235e-05/0.01395, allocations: 0 / 0.8835 GB, free: 176 kB / 0.8386 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.877e-06/0.01396, allocations: 4 kB / 0.8835 GB, free: 172 kB / 0.8386 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.52e-07/0.01396, allocations: 0 / 0.8835 GB, free: 172 kB / 0.8386 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004753/0.01443, allocations: 239.3 kB / 0.8838 GB, free: 15.92 MB / 0.8542 GB
Notification: Performance of postOpt removeConstants (simulation): time 2.288e-05/0.01446, allocations: 15.84 kB / 0.8838 GB, free: 15.9 MB / 0.8542 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.446e-05/0.01448, allocations: 7.938 kB / 0.8838 GB, free: 15.89 MB / 0.8542 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001168/0.0146, allocations: 7.984 kB / 0.8838 GB, free: 15.89 MB / 0.8542 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 8.018e-05/0.01468, allocations: 19.97 kB / 0.8838 GB, free: 15.87 MB / 0.8542 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.033e-05/0.01469, allocations: 4 kB / 0.8838 GB, free: 15.86 MB / 0.8542 GB
Notification: Performance of sorting global known variables: time 9.857e-05/0.01479, allocations: 109.7 kB / 0.8839 GB, free: 15.76 MB / 0.8542 GB
Notification: Performance of sort global known variables: time 6e-08/0.01479, allocations: 0 / 0.8839 GB, free: 15.76 MB / 0.8542 GB
Notification: Performance of remove unused functions: time 0.0002735/0.01506, allocations: 27.94 kB / 0.884 GB, free: 15.73 MB / 0.8542 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 6 (actAirSet.or3.y,actAirSet.ifOcc.y,actAirSet.ifCooDow.y,actAirSet.ifSetUp.y,actAirSet.or2.y,reaToInt2.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (12):
 * Single equations (assignments): 12
 * 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 0.0001331/0.01519, allocations: 103.2 kB / 0.8841 GB, free: 15.62 MB / 0.8542 GB
Notification: Performance of simCode: created initialization part: time 0.000385/0.01558, allocations: 107.9 kB / 0.8842 GB, free: 15.52 MB / 0.8542 GB
Notification: Performance of simCode: created event and clocks part: time 1.322e-06/0.01558, allocations: 0 / 0.8842 GB, free: 15.52 MB / 0.8542 GB
Notification: Performance of simCode: created simulation system equations: time 0.000172/0.01575, allocations: 60.03 kB / 0.8842 GB, free: 15.46 MB / 0.8542 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003562/0.01611, allocations: 25.78 kB / 0.8842 GB, free: 15.43 MB / 0.8542 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0006092/0.01672, allocations: 281.2 kB / 0.8845 GB, free: 15.13 MB / 0.8542 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001182/0.01684, allocations: 99.42 kB / 0.8846 GB, free: 15.01 MB / 0.8542 GB
Notification: Performance of simCode: alias equations: time 9.066e-05/0.01693, allocations: 25.12 kB / 0.8846 GB, free: 14.98 MB / 0.8542 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 6.01e-05/0.01699, allocations: 20.5 kB / 0.8846 GB, free: 14.96 MB / 0.8542 GB
Notification: Performance of SimCode: time 5.91e-07/0.01699, allocations: 0 / 0.8846 GB, free: 14.96 MB / 0.8542 GB
Notification: Performance of Templates: time 0.004566/0.02155, allocations: 1.269 MB / 0.8859 GB, free: 13.76 MB / 0.8542 GB
"
[Timeout remaining time 300]
make -j1 -f Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.makefile [Timeout 300]
(rm -f Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.pipe ; mkfifo Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.pipe >> ../files/Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.sim & ./Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow  -abortSlowSimulation -alarm=800  -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.pipe 2>&1) [Timeout 800]
diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanVVF_Subsequences_Validation_ActiveAirFlow.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanVVF.Subsequences.Validation.ActiveAirFlow.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: 8.230257921037264]