Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.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 0.001629/0.001629, allocations: 99.75 kB / 18.95 MB, free: 2.832 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 0.002274/0.002274, allocations: 214.1 kB / 22.25 MB, free: 5.105 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 1.46/1.46, allocations: 230.6 MB / 256 MB, free: 7.797 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 3.094/3.094, allocations: 0.49 GB / 0.7951 GB, free: 35.54 MB / 0.6231 GB " [Timeout remaining time 177] 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.Fluid.FixedResistances.Examples.PressureDrop,fileNamePrefix="Buildings_12_Buildings_Fluid_FixedResistances_Examples_PressureDrop",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.FixedResistances.Examples.PressureDrop,fileNamePrefix="Buildings_12_Buildings_Fluid_FixedResistances_Examples_PressureDrop",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 0.002047/0.002047, allocations: 69.5 kB / 1.154 GB, free: 25.46 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3401/0.3422, allocations: 176.1 MB / 1.326 GB, free: 1.496 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.FixedResistances.Examples.PressureDrop): time 0.1814/0.5236, allocations: 142.4 MB / 1.465 GB, free: 2.605 MB / 1.154 GB Notification: Performance of NFInst.instExpressions: time 0.003299/0.5269, allocations: 1.608 MB / 1.466 GB, free: 0.9961 MB / 1.154 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003539/0.5272, allocations: 19.81 kB / 1.466 GB, free: 0.9766 MB / 1.154 GB Notification: Performance of NFTyping.typeComponents: time 0.0006079/0.5278, allocations: 155 kB / 1.467 GB, free: 0.8242 MB / 1.154 GB Notification: Performance of NFTyping.typeBindings: time 0.001351/0.5292, allocations: 0.5173 MB / 1.467 GB, free: 312 kB / 1.154 GB Notification: Performance of NFTyping.typeClassSections: time 0.001194/0.5304, allocations: 432.5 kB / 1.468 GB, free: 15.88 MB / 1.17 GB Notification: Performance of NFFlatten.flatten: time 0.000891/0.5313, allocations: 0.581 MB / 1.468 GB, free: 15.3 MB / 1.17 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003066/0.5316, allocations: 144.7 kB / 1.468 GB, free: 15.16 MB / 1.17 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001128/0.5327, allocations: 494.2 kB / 1.469 GB, free: 14.67 MB / 1.17 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000255/0.533, allocations: 159.3 kB / 1.469 GB, free: 14.52 MB / 1.17 GB Notification: Performance of NFPackage.collectConstants: time 3.21e-05/0.533, allocations: 12 kB / 1.469 GB, free: 14.5 MB / 1.17 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001035/0.534, allocations: 0.5729 MB / 1.469 GB, free: 13.93 MB / 1.17 GB Notification: Performance of NFScalarize.scalarize: time 0.0001381/0.5342, allocations: 83.67 kB / 1.469 GB, free: 13.85 MB / 1.17 GB Notification: Performance of NFVerifyModel.verify: time 0.0001397/0.5343, allocations: 103.5 kB / 1.47 GB, free: 13.75 MB / 1.17 GB Notification: Performance of NFConvertDAE.convert: time 0.0007984/0.5351, allocations: 494 kB / 1.47 GB, free: 13.27 MB / 1.17 GB Notification: Performance of FrontEnd - DAE generated: time 3.787e-06/0.5351, allocations: 0 / 1.47 GB, free: 13.27 MB / 1.17 GB Notification: Performance of FrontEnd: time 1.272e-06/0.5351, allocations: 0 / 1.47 GB, free: 13.27 MB / 1.17 GB Notification: Performance of Transformations before backend: time 6.583e-06/0.5351, allocations: 0 / 1.47 GB, free: 13.27 MB / 1.17 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 0.0008672/0.536, allocations: 0.5197 MB / 1.471 GB, free: 12.71 MB / 1.17 GB Notification: Performance of prepare preOptimizeDAE: time 4.003e-05/0.536, allocations: 8.031 kB / 1.471 GB, free: 12.71 MB / 1.17 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.383e-05/0.5361, allocations: 46.55 kB / 1.471 GB, free: 12.65 MB / 1.17 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003357/0.5364, allocations: 55.77 kB / 1.471 GB, free: 12.6 MB / 1.17 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004836/0.5369, allocations: 248.1 kB / 1.471 GB, free: 12.33 MB / 1.17 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.64e-05/0.5369, allocations: 8 kB / 1.471 GB, free: 12.32 MB / 1.17 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.847e-05/0.5369, allocations: 16 kB / 1.471 GB, free: 12.3 MB / 1.17 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004139/0.5374, allocations: 221.8 kB / 1.471 GB, free: 12.07 MB / 1.17 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.061e-05/0.5374, allocations: 4 kB / 1.471 GB, free: 12.06 MB / 1.17 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.066e-05/0.5374, allocations: 8 kB / 1.471 GB, free: 12.05 MB / 1.17 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.35e-06/0.5374, allocations: 0 / 1.471 GB, free: 12.05 MB / 1.17 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003208/0.5377, allocations: 135.8 kB / 1.471 GB, free: 11.92 MB / 1.17 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001071/0.5388, allocations: 0.6713 MB / 1.472 GB, free: 11.2 MB / 1.17 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002523/0.539, allocations: 86.45 kB / 1.472 GB, free: 11.11 MB / 1.17 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001588/0.5392, allocations: 72.86 kB / 1.472 GB, free: 11.03 MB / 1.17 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002252/0.5394, allocations: 35.97 kB / 1.472 GB, free: 11 MB / 1.17 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.481e-05/0.5395, allocations: 34.56 kB / 1.472 GB, free: 10.95 MB / 1.17 GB Notification: Performance of pre-optimization done (n=10): time 1.313e-06/0.5395, allocations: 0 / 1.472 GB, free: 10.95 MB / 1.17 GB Notification: Performance of matching and sorting (n=10): time 0.000699/0.5402, allocations: 225.2 kB / 1.472 GB, free: 10.73 MB / 1.17 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.747e-05/0.5402, allocations: 51.41 kB / 1.472 GB, free: 10.66 MB / 1.17 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002902/0.5405, allocations: 272.2 kB / 1.473 GB, free: 10.39 MB / 1.17 GB Notification: Performance of collectPreVariables (initialization): time 2.723e-05/0.5405, allocations: 29.7 kB / 1.473 GB, free: 10.35 MB / 1.17 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001211/0.5406, allocations: 148 kB / 1.473 GB, free: 10.2 MB / 1.17 GB Notification: Performance of collectInitialBindings (initialization): time 3.99e-05/0.5407, allocations: 35.69 kB / 1.473 GB, free: 10.17 MB / 1.17 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.424e-05/0.5407, allocations: 33.7 kB / 1.473 GB, free: 10.13 MB / 1.17 GB Notification: Performance of setup shared object (initialization): time 0.0001598/0.5409, allocations: 334.8 kB / 1.473 GB, free: 9.793 MB / 1.17 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001358/0.541, allocations: 48.81 kB / 1.473 GB, free: 9.742 MB / 1.17 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002443/0.5413, allocations: 221.6 kB / 1.473 GB, free: 9.477 MB / 1.17 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002694/0.5416, allocations: 127.3 kB / 1.474 GB, free: 9.34 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.643e-06/0.5416, allocations: 0 / 1.474 GB, free: 9.34 MB / 1.17 GB Notification: Performance of matching and sorting (n=10) (initialization): time 0.0003704/0.5419, allocations: 161.4 kB / 1.474 GB, free: 9.176 MB / 1.17 GB Notification: Performance of prepare postOptimizeDAE: time 1.553e-05/0.5419, allocations: 8 kB / 1.474 GB, free: 9.168 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.375e-06/0.542, allocations: 3.938 kB / 1.474 GB, free: 9.164 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.424e-05/0.542, allocations: 0 / 1.474 GB, free: 9.164 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001325/0.5421, allocations: 19.98 kB / 1.474 GB, free: 9.145 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.136e-06/0.5421, allocations: 7.938 kB / 1.474 GB, free: 9.137 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001804/0.5423, allocations: 19.88 kB / 1.474 GB, free: 9.117 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.352e-05/0.5423, allocations: 4.062 kB / 1.474 GB, free: 9.113 MB / 1.17 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000211/0.5425, allocations: 160.1 kB / 1.474 GB, free: 8.953 MB / 1.17 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002429/0.5428, allocations: 218.2 kB / 1.474 GB, free: 8.691 MB / 1.17 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002575/0.543, allocations: 119.3 kB / 1.474 GB, free: 8.562 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.012e-06/0.543, allocations: 0 / 1.474 GB, free: 8.562 MB / 1.17 GB Notification: Performance of matching and sorting (n=10) (initialization_lambda0): time 0.0003414/0.5434, allocations: 157.5 kB / 1.474 GB, free: 8.402 MB / 1.17 GB Notification: Performance of prepare postOptimizeDAE: time 8.937e-06/0.5434, allocations: 9.75 kB / 1.474 GB, free: 8.395 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.849e-06/0.5434, allocations: 4 kB / 1.474 GB, free: 8.391 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.248e-06/0.5434, allocations: 4.125 kB / 1.474 GB, free: 8.387 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001202/0.5435, allocations: 23.92 kB / 1.474 GB, free: 8.363 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.088e-06/0.5435, allocations: 11.88 kB / 1.475 GB, free: 8.352 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001712/0.5437, allocations: 15.97 kB / 1.475 GB, free: 8.336 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.424e-05/0.5437, allocations: 4 kB / 1.475 GB, free: 8.332 MB / 1.17 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * 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 (10): * Single equations (assignments): 10 * 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 0.0001262/0.5438, allocations: 184.3 kB / 1.475 GB, free: 8.145 MB / 1.17 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.97e-05/0.5439, allocations: 23.86 kB / 1.475 GB, free: 8.121 MB / 1.17 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000387/0.5443, allocations: 167.2 kB / 1.475 GB, free: 7.949 MB / 1.17 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.567e-06/0.5443, allocations: 0 / 1.475 GB, free: 7.949 MB / 1.17 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.928e-06/0.5443, allocations: 0 / 1.475 GB, free: 7.949 MB / 1.17 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.846e-06/0.5443, allocations: 0 / 1.475 GB, free: 7.949 MB / 1.17 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009385/0.5452, allocations: 0.5576 MB / 1.475 GB, free: 7.32 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.314e-06/0.5452, allocations: 0 / 1.475 GB, free: 7.32 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001187/0.5453, allocations: 27.97 kB / 1.475 GB, free: 7.293 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.076e-06/0.5453, allocations: 0 / 1.475 GB, free: 7.293 MB / 1.17 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.276e-05/0.5453, allocations: 4 kB / 1.475 GB, free: 7.289 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.278e-06/0.5453, allocations: 4 kB / 1.475 GB, free: 7.285 MB / 1.17 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.029e-06/0.5453, allocations: 3.938 kB / 1.475 GB, free: 7.281 MB / 1.17 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004187/0.5458, allocations: 301.5 kB / 1.476 GB, free: 6.949 MB / 1.17 GB Notification: Performance of postOpt removeConstants (simulation): time 9.346e-05/0.5459, allocations: 35.83 kB / 1.476 GB, free: 6.914 MB / 1.17 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.519e-05/0.5459, allocations: 4 kB / 1.476 GB, free: 6.91 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001958/0.5461, allocations: 15.98 kB / 1.476 GB, free: 6.895 MB / 1.17 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.846e-05/0.5461, allocations: 11.92 kB / 1.476 GB, free: 6.883 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.324e-05/0.5462, allocations: 8 kB / 1.476 GB, free: 6.875 MB / 1.17 GB Notification: Performance of sorting global known variables: time 0.0002004/0.5464, allocations: 195.1 kB / 1.476 GB, free: 6.688 MB / 1.17 GB Notification: Performance of sort global known variables: time 1.1e-07/0.5464, allocations: 4 kB / 1.476 GB, free: 6.684 MB / 1.17 GB Notification: Performance of remove unused functions: time 0.0004687/0.5468, allocations: 95.83 kB / 1.476 GB, free: 6.59 MB / 1.17 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * 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 (10): * Single equations (assignments): 10 * 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 0.0008748/0.5477, allocations: 0.8824 MB / 1.477 GB, free: 5.66 MB / 1.17 GB Notification: Performance of simCode: created initialization part: time 0.0004661/0.5482, allocations: 159.8 kB / 1.477 GB, free: 5.504 MB / 1.17 GB Notification: Performance of simCode: created event and clocks part: time 2.374e-06/0.5482, allocations: 0 / 1.477 GB, free: 5.504 MB / 1.17 GB Notification: Performance of simCode: created simulation system equations: time 0.0001588/0.5483, allocations: 64.39 kB / 1.477 GB, free: 5.441 MB / 1.17 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007202/0.549, allocations: 125.8 kB / 1.477 GB, free: 5.32 MB / 1.17 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003054/0.5521, allocations: 2.37 MB / 1.48 GB, free: 2.816 MB / 1.17 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001488/0.5522, allocations: 142.2 kB / 1.48 GB, free: 2.66 MB / 1.17 GB Notification: Performance of simCode: alias equations: time 0.0002121/0.5525, allocations: 78.8 kB / 1.48 GB, free: 2.582 MB / 1.17 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001228/0.5526, allocations: 71.42 kB / 1.48 GB, free: 2.512 MB / 1.17 GB Notification: Performance of SimCode: time 7.51e-07/0.5526, allocations: 0 / 1.48 GB, free: 2.512 MB / 1.17 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03692/0.5895, allocations: 7.934 MB / 1.488 GB, free: 10.81 MB / 1.186 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.85/11.44, allocations: 15.8 kB / 1.488 GB, free: 10.79 MB / 1.186 GB " [Timeout remaining time 288] (rm -f Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.pipe ; mkfifo Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.pipe ; head -c 1048576 < Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.pipe >> ../files/Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop_res.mat --tempDir=temp_Buildings_12_Buildings_Fluid_FixedResistances_Examples_PressureDrop_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_Fluid_FixedResistances_Examples_PressureDrop.fmu > Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Fluid_FixedResistances_Examples_PressureDrop.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Fluid.FixedResistances.Examples.PressureDrop.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: 17.99609239998972]