Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001346/0.001346, allocations: 110.2 kB / 18.94 MB, free: 2.949 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001415/0.001415, allocations: 186.4 kB / 22.23 MB, free: 5.137 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.467/1.467, allocations: 225.6 MB / 251 MB, free: 13.02 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.1-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.1-master/package.mo): time 3.233/3.233, allocations: 0.4893 GB / 0.7884 GB, free: 33.19 MB / 0.6231 GB " [Timeout remaining time 176] Using package Buildings with version 12.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.1-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Fluid.HeatPumps.Examples.EquationFitReversible,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|heaPum.QSou_flow|heaPum.QLoa_flow|heaPum.sta_a1.T|heaPum.sta_b1.T|heaPum.COP",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible") translateModel(Buildings.Fluid.HeatPumps.Examples.EquationFitReversible,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|heaPum.QSou_flow|heaPum.QLoa_flow|heaPum.sta_a1.T|heaPum.sta_b1.T|heaPum.COP",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.001982/0.001982, allocations: 60.97 kB / 1.145 GB, free: 30.64 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3048/0.3068, allocations: 174.9 MB / 1.316 GB, free: 9.699 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Examples.EquationFitReversible): time 0.07255/0.3794, allocations: 63.78 MB / 1.378 GB, free: 9.699 MB / 1.076 GB Notification: Performance of NFInst.instExpressions: time 0.02045/0.3998, allocations: 13.74 MB / 1.392 GB, free: 11.92 MB / 1.092 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002576/0.4024, allocations: 87.31 kB / 1.392 GB, free: 11.84 MB / 1.092 GB Notification: Performance of NFTyping.typeComponents: time 0.002846/0.4052, allocations: 0.9784 MB / 1.393 GB, free: 10.85 MB / 1.092 GB Notification: Performance of NFTyping.typeBindings: time 0.006867/0.4121, allocations: 2.589 MB / 1.395 GB, free: 8.254 MB / 1.092 GB Notification: Performance of NFTyping.typeClassSections: time 0.00423/0.4163, allocations: 1.659 MB / 1.397 GB, free: 6.605 MB / 1.092 GB Notification: Performance of NFFlatten.flatten: time 0.006099/0.4224, allocations: 4.394 MB / 1.401 GB, free: 2.203 MB / 1.092 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001815/0.4242, allocations: 1.133 MB / 1.402 GB, free: 1.031 MB / 1.092 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003903/0.4281, allocations: 1.838 MB / 1.404 GB, free: 15.19 MB / 1.107 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002005/0.4301, allocations: 1.35 MB / 1.405 GB, free: 13.84 MB / 1.107 GB Notification: Performance of NFPackage.collectConstants: time 0.000331/0.4305, allocations: 176 kB / 1.406 GB, free: 13.66 MB / 1.107 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003142/0.4336, allocations: 1.47 MB / 1.407 GB, free: 12.19 MB / 1.107 GB Notification: Performance of NFScalarize.scalarize: time 0.0005663/0.4342, allocations: 0.5215 MB / 1.408 GB, free: 11.67 MB / 1.107 GB Notification: Performance of NFVerifyModel.verify: time 0.001195/0.4354, allocations: 1.015 MB / 1.409 GB, free: 10.65 MB / 1.107 GB Notification: Performance of NFConvertDAE.convert: time 0.004861/0.4402, allocations: 3.192 MB / 1.412 GB, free: 7.445 MB / 1.107 GB Notification: Performance of FrontEnd - DAE generated: time 1.079e-05/0.4403, allocations: 4 kB / 1.412 GB, free: 7.441 MB / 1.107 GB Notification: Performance of FrontEnd: time 1.132e-06/0.4403, allocations: 0 / 1.412 GB, free: 7.441 MB / 1.107 GB Notification: Performance of Transformations before backend: time 3.678e-05/0.4403, allocations: 0 / 1.412 GB, free: 7.441 MB / 1.107 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 265 * Number of variables: 265 Notification: Performance of Generate backend data structure: time 0.00485/0.4451, allocations: 2.318 MB / 1.414 GB, free: 5.078 MB / 1.107 GB Notification: Performance of prepare preOptimizeDAE: time 4.111e-05/0.4452, allocations: 8.031 kB / 1.414 GB, free: 5.07 MB / 1.107 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003225/0.4484, allocations: 0.546 MB / 1.414 GB, free: 4.523 MB / 1.107 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003158/0.4516, allocations: 1.431 MB / 1.416 GB, free: 3.059 MB / 1.107 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002012/0.4518, allocations: 157.5 kB / 1.416 GB, free: 2.891 MB / 1.107 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002274/0.452, allocations: 112 kB / 1.416 GB, free: 2.781 MB / 1.107 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003698/0.4557, allocations: 1.558 MB / 1.418 GB, free: 1.133 MB / 1.107 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.999e-05/0.4557, allocations: 11.94 kB / 1.418 GB, free: 1.121 MB / 1.107 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001369/0.4559, allocations: 48 kB / 1.418 GB, free: 1.074 MB / 1.107 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.989e-05/0.4559, allocations: 31.98 kB / 1.418 GB, free: 1.043 MB / 1.107 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004486/0.4604, allocations: 1.565 MB / 1.419 GB, free: 15.48 MB / 1.123 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 0.009878/0.4703, allocations: 6.853 MB / 1.426 GB, free: 8.191 MB / 1.123 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002759/0.473, allocations: 0.9418 MB / 1.427 GB, free: 7.238 MB / 1.123 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001909/0.4749, allocations: 0.6312 MB / 1.427 GB, free: 6.605 MB / 1.123 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003796/0.4753, allocations: 104.6 kB / 1.428 GB, free: 6.504 MB / 1.123 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.144e-05/0.4754, allocations: 43.22 kB / 1.428 GB, free: 6.453 MB / 1.123 GB Notification: Performance of pre-optimization done (n=77): time 2.395e-06/0.4754, allocations: 0 / 1.428 GB, free: 6.453 MB / 1.123 GB Notification: Performance of matching and sorting (n=77): time 0.006149/0.4815, allocations: 1.906 MB / 1.429 GB, free: 4.539 MB / 1.123 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.371e-05/0.4816, allocations: 111.5 kB / 1.43 GB, free: 4.406 MB / 1.123 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002003/0.4836, allocations: 1.412 MB / 1.431 GB, free: 2.984 MB / 1.123 GB Notification: Performance of collectPreVariables (initialization): time 0.0001277/0.4837, allocations: 41.7 kB / 1.431 GB, free: 2.938 MB / 1.123 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006571/0.4844, allocations: 0.7291 MB / 1.432 GB, free: 2.199 MB / 1.123 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003032/0.4847, allocations: 277.6 kB / 1.432 GB, free: 1.926 MB / 1.123 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003675/0.4851, allocations: 178.5 kB / 1.432 GB, free: 1.746 MB / 1.123 GB Notification: Performance of setup shared object (initialization): time 0.0001622/0.4852, allocations: 345.9 kB / 1.432 GB, free: 1.402 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0019/0.4871, allocations: 0.5981 MB / 1.433 GB, free: 0.8008 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002136/0.4893, allocations: 0.8361 MB / 1.434 GB, free: 15.87 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003782/0.493, allocations: 1.312 MB / 1.435 GB, free: 14.5 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.519e-06/0.493, allocations: 4 kB / 1.435 GB, free: 14.49 MB / 1.139 GB Notification: Performance of matching and sorting (n=109) (initialization): time 0.004549/0.4976, allocations: 1.562 MB / 1.437 GB, free: 12.92 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 2.221e-05/0.4976, allocations: 8 kB / 1.437 GB, free: 12.91 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.097e-05/0.4976, allocations: 4.562 kB / 1.437 GB, free: 12.91 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.482e-05/0.4976, allocations: 12 kB / 1.437 GB, free: 12.9 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001666/0.4993, allocations: 307.5 kB / 1.437 GB, free: 12.6 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.351e-05/0.4993, allocations: 11.94 kB / 1.437 GB, free: 12.59 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001875/0.5012, allocations: 199.1 kB / 1.437 GB, free: 12.39 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000138/0.5013, allocations: 39.98 kB / 1.437 GB, free: 12.35 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002443/0.5038, allocations: 0.9047 MB / 1.438 GB, free: 11.45 MB / 1.139 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002047/0.5058, allocations: 0.8283 MB / 1.439 GB, free: 10.53 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00365/0.5095, allocations: 1.308 MB / 1.44 GB, free: 9.152 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.847e-06/0.5095, allocations: 0 / 1.44 GB, free: 9.152 MB / 1.139 GB Notification: Performance of matching and sorting (n=109) (initialization_lambda0): time 0.004439/0.5139, allocations: 1.558 MB / 1.442 GB, free: 7.586 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 1.525e-05/0.5139, allocations: 8 kB / 1.442 GB, free: 7.578 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.724e-06/0.514, allocations: 4 kB / 1.442 GB, free: 7.574 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.466e-05/0.514, allocations: 11.98 kB / 1.442 GB, free: 7.562 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001534/0.5155, allocations: 315.9 kB / 1.442 GB, free: 7.254 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.289e-05/0.5155, allocations: 8 kB / 1.442 GB, free: 7.246 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001478/0.517, allocations: 183.3 kB / 1.442 GB, free: 7.066 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.715e-05/0.5171, allocations: 39.92 kB / 1.442 GB, free: 7.027 MB / 1.139 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * Number of states: 0 () * Number of discrete variables: 2 (intGreThr.y,reaToInt.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (109): * Single equations (assignments): 109 * 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 0.0003449/0.5174, allocations: 236 kB / 1.442 GB, free: 6.789 MB / 1.139 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003607/0.5178, allocations: 155 kB / 1.443 GB, free: 6.637 MB / 1.139 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004642/0.5224, allocations: 1.7 MB / 1.444 GB, free: 4.902 MB / 1.139 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.482e-05/0.5225, allocations: 12 kB / 1.444 GB, free: 4.891 MB / 1.139 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.092e-06/0.5225, allocations: 0 / 1.444 GB, free: 4.891 MB / 1.139 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003741/0.5262, allocations: 1.32 MB / 1.446 GB, free: 3.539 MB / 1.139 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007586/0.5338, allocations: 3.375 MB / 1.449 GB, free: 56 kB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.678e-06/0.5338, allocations: 4 kB / 1.449 GB, free: 52 kB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001345/0.5351, allocations: 231.8 kB / 1.449 GB, free: 15.82 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.207e-05/0.5352, allocations: 4 kB / 1.449 GB, free: 15.82 MB / 1.154 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.596e-05/0.5352, allocations: 23.98 kB / 1.449 GB, free: 15.8 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.581e-05/0.5353, allocations: 15.92 kB / 1.449 GB, free: 15.78 MB / 1.154 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.442e-06/0.5353, allocations: 7.938 kB / 1.449 GB, free: 15.77 MB / 1.154 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006426/0.5417, allocations: 2.42 MB / 1.452 GB, free: 13.27 MB / 1.154 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009518/0.5426, allocations: 326.5 kB / 1.452 GB, free: 12.95 MB / 1.154 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003506/0.543, allocations: 20 kB / 1.452 GB, free: 12.93 MB / 1.154 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001639/0.5446, allocations: 147.8 kB / 1.452 GB, free: 12.79 MB / 1.154 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001947/0.5448, allocations: 84.25 kB / 1.452 GB, free: 12.71 MB / 1.154 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001222/0.545, allocations: 43.91 kB / 1.452 GB, free: 12.66 MB / 1.154 GB Notification: Performance of sorting global known variables: time 0.001764/0.5467, allocations: 1.083 MB / 1.453 GB, free: 11.59 MB / 1.154 GB Notification: Performance of sort global known variables: time 9e-08/0.5467, allocations: 0 / 1.453 GB, free: 11.59 MB / 1.154 GB Notification: Performance of remove unused functions: time 0.002304/0.549, allocations: 0.8227 MB / 1.454 GB, free: 10.76 MB / 1.154 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 19 * Number of states: 2 (heaPum.vol1.dynBal.U,heaPum.vol2.dynBal.U) * Number of discrete variables: 2 (reaToInt.y,intGreThr.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (75): * Single equations (assignments): 71 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 0.001057/0.5501, allocations: 473.1 kB / 1.454 GB, free: 10.3 MB / 1.154 GB Notification: Performance of simCode: created initialization part: time 0.006516/0.5566, allocations: 2.055 MB / 1.456 GB, free: 8.246 MB / 1.154 GB Notification: Performance of simCode: created event and clocks part: time 1.231e-05/0.5566, allocations: 7.859 kB / 1.456 GB, free: 8.238 MB / 1.154 GB Notification: Performance of simCode: created simulation system equations: time 0.002222/0.5588, allocations: 0.722 MB / 1.457 GB, free: 7.516 MB / 1.154 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004241/0.5631, allocations: 0.8112 MB / 1.458 GB, free: 6.711 MB / 1.154 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005602/0.5687, allocations: 2.932 MB / 1.461 GB, free: 3.688 MB / 1.154 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001044/0.5697, allocations: 1.281 MB / 1.462 GB, free: 2.379 MB / 1.154 GB Notification: Performance of simCode: alias equations: time 0.001772/0.5715, allocations: 423.6 kB / 1.462 GB, free: 1.961 MB / 1.154 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005062/0.572, allocations: 135.4 kB / 1.463 GB, free: 1.828 MB / 1.154 GB Notification: Performance of SimCode: time 8.92e-07/0.572, allocations: 4 kB / 1.463 GB, free: 1.824 MB / 1.154 GB Notification: Performance of Templates: time 0.05992/0.6319, allocations: 35.05 MB / 1.497 GB, free: 15.14 MB / 1.201 GB " [Timeout remaining time 299] make -j1 -f Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.pipe ; mkfifo Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.pipe >> ../files/Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.sim & ./Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible -abortSlowSimulation -alarm=800 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.pipe 2>&1) [Timeout 800] diffSimulationResults("Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_HeatPumps_Examples_EquationFitReversible.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.HeatPumps.Examples.EquationFitReversible.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: 10.017388421110809]