Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.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 0.001003/0.001003, allocations: 87.58 kB / 20.45 MB, free: 4.117 MB / 18.57 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 0.001086/0.001086, allocations: 161 kB / 23.82 MB, free: 0.75 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 1.012/1.012, allocations: 177.1 MB / 204.2 MB, free: 5.266 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo): time 1.917/1.917, allocations: 377.8 MB / 0.6236 GB, free: 8.551 MB / 0.5886 GB " [Timeout remaining time 177] Using package Buildings with version 12.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-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: translateModel(Buildings.HeatTransfer.Convection.Examples.Interior,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|conCon.Q_flow|conVer.Q_flow|conHorFluTop.Q_flow|conHorSolTop.Q_flow|conHorFluTop.solid.T|conHorFluTop.fluid.T",fileNamePrefix="Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior") translateModel(Buildings.HeatTransfer.Convection.Examples.Interior,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|conCon.Q_flow|conVer.Q_flow|conHorFluTop.Q_flow|conHorSolTop.Q_flow|conHorFluTop.solid.T|conHorFluTop.fluid.T",fileNamePrefix="Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.703e-06/1.703e-06, allocations: 0 / 0.8115 GB, free: 0.625 MB / 0.7136 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.894e-05/3.064e-05, allocations: 2.969 kB / 0.8115 GB, free: 0.6211 MB / 0.7136 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Convection.Examples.Interior): time 0.002943/0.002974, allocations: 2.478 MB / 0.8139 GB, free: 14.15 MB / 0.7292 GB Notification: Performance of NFInst.instExpressions: time 0.00136/0.004334, allocations: 0.9929 MB / 0.8149 GB, free: 13.16 MB / 0.7292 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001181/0.004452, allocations: 4 kB / 0.8149 GB, free: 13.15 MB / 0.7292 GB Notification: Performance of NFTyping.typeComponents: time 7.757e-05/0.004529, allocations: 40.11 kB / 0.8149 GB, free: 13.11 MB / 0.7292 GB Notification: Performance of NFTyping.typeBindings: time 0.0003574/0.004887, allocations: 137.3 kB / 0.8151 GB, free: 12.98 MB / 0.7292 GB Notification: Performance of NFTyping.typeClassSections: time 0.0002867/0.005173, allocations: 183.6 kB / 0.8152 GB, free: 12.8 MB / 0.7292 GB Notification: Performance of NFFlatten.flatten: time 0.0004542/0.005627, allocations: 395.8 kB / 0.8156 GB, free: 12.41 MB / 0.7292 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001504/0.005778, allocations: 76.33 kB / 0.8157 GB, free: 12.34 MB / 0.7292 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002168/0.005995, allocations: 208.7 kB / 0.8159 GB, free: 12.14 MB / 0.7292 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001681/0.006163, allocations: 107.7 kB / 0.816 GB, free: 12.03 MB / 0.7292 GB Notification: Performance of NFPackage.collectConstants: time 3.821e-05/0.006201, allocations: 20 kB / 0.816 GB, free: 12.01 MB / 0.7292 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001292/0.00633, allocations: 57 kB / 0.8161 GB, free: 11.96 MB / 0.7292 GB Notification: Performance of NFScalarize.scalarize: time 3.326e-05/0.006364, allocations: 51.77 kB / 0.8161 GB, free: 11.91 MB / 0.7292 GB Notification: Performance of NFVerifyModel.verify: time 7.686e-05/0.00644, allocations: 99.75 kB / 0.8162 GB, free: 11.81 MB / 0.7292 GB Notification: Performance of NFConvertDAE.convert: time 0.0002684/0.006709, allocations: 228.1 kB / 0.8164 GB, free: 11.59 MB / 0.7292 GB Notification: Performance of FrontEnd - DAE generated: time 3.647e-06/0.006712, allocations: 0 / 0.8164 GB, free: 11.59 MB / 0.7292 GB Notification: Performance of FrontEnd: time 1.012e-06/0.006713, allocations: 0.9062 kB / 0.8164 GB, free: 11.59 MB / 0.7292 GB Notification: Performance of Transformations before backend: time 6.011e-06/0.006719, allocations: 0 / 0.8164 GB, free: 11.59 MB / 0.7292 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 49 * Number of variables: 49 Notification: Performance of Generate backend data structure: time 0.0005942/0.007314, allocations: 0.5902 MB / 0.817 GB, free: 10.96 MB / 0.7292 GB Notification: Performance of prepare preOptimizeDAE: time 3.651e-05/0.00735, allocations: 11.97 kB / 0.817 GB, free: 10.95 MB / 0.7292 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001217/0.007472, allocations: 50.09 kB / 0.8171 GB, free: 10.9 MB / 0.7292 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002313/0.007703, allocations: 215.6 kB / 0.8173 GB, free: 10.67 MB / 0.7292 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.672e-05/0.00772, allocations: 22.39 kB / 0.8173 GB, free: 10.64 MB / 0.7292 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.183e-05/0.007742, allocations: 16.38 kB / 0.8173 GB, free: 10.63 MB / 0.7292 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002184/0.00796, allocations: 149.4 kB / 0.8174 GB, free: 10.48 MB / 0.7292 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.327e-06/0.007969, allocations: 192 / 0.8174 GB, free: 10.48 MB / 0.7292 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.547e-05/0.007985, allocations: 11.19 kB / 0.8175 GB, free: 10.47 MB / 0.7292 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.949e-06/0.007995, allocations: 11.94 kB / 0.8175 GB, free: 10.46 MB / 0.7292 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001008/0.008096, allocations: 70.83 kB / 0.8175 GB, free: 10.39 MB / 0.7292 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0005715/0.008667, allocations: 0.5261 MB / 0.818 GB, free: 9.828 MB / 0.7292 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001213/0.008788, allocations: 83.53 kB / 0.8181 GB, free: 9.734 MB / 0.7292 GB Notification: Performance of preOpt resolveLoops (simulation): time 5.293e-05/0.008841, allocations: 39.67 kB / 0.8182 GB, free: 9.691 MB / 0.7292 GB Notification: Performance of preOpt evalFunc (simulation): time 2.17e-05/0.008863, allocations: 0.5312 kB / 0.8182 GB, free: 9.691 MB / 0.7292 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.92e-05/0.008882, allocations: 39.33 kB / 0.8182 GB, free: 9.645 MB / 0.7292 GB Notification: Performance of pre-optimization done (n=13): time 1.283e-06/0.008884, allocations: 0 / 0.8182 GB, free: 9.645 MB / 0.7292 GB Notification: Performance of matching and sorting (n=13): time 0.0002096/0.009093, allocations: 125 kB / 0.8183 GB, free: 9.52 MB / 0.7292 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.503e-05/0.009118, allocations: 51.41 kB / 0.8184 GB, free: 9.457 MB / 0.7292 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001484/0.009267, allocations: 268.3 kB / 0.8186 GB, free: 9.18 MB / 0.7292 GB Notification: Performance of collectPreVariables (initialization): time 1.204e-05/0.009279, allocations: 27.39 kB / 0.8187 GB, free: 9.148 MB / 0.7292 GB Notification: Performance of collectInitialEqns (initialization): time 7.836e-05/0.009357, allocations: 207.1 kB / 0.8188 GB, free: 8.941 MB / 0.7292 GB Notification: Performance of collectInitialBindings (initialization): time 3.27e-05/0.00939, allocations: 47.53 kB / 0.8189 GB, free: 8.895 MB / 0.7292 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.931e-05/0.009429, allocations: 35.38 kB / 0.8189 GB, free: 8.852 MB / 0.7292 GB Notification: Performance of setup shared object (initialization): time 0.0001177/0.009547, allocations: 0.5001 MB / 0.8194 GB, free: 8.34 MB / 0.7292 GB Notification: Performance of preBalanceInitialSystem (initialization): time 3.783e-05/0.009584, allocations: 20.59 kB / 0.8194 GB, free: 8.316 MB / 0.7292 GB Notification: Performance of partitionIndependentBlocks (initialization): time 2.866e-05/0.009613, allocations: 15.98 kB / 0.8195 GB, free: 8.301 MB / 0.7292 GB Notification: Performance of analyzeInitialSystem (initialization): time 6.749e-05/0.009681, allocations: 48.52 kB / 0.8195 GB, free: 8.25 MB / 0.7292 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.924e-06/0.009683, allocations: 0 / 0.8195 GB, free: 8.25 MB / 0.7292 GB Notification: Performance of matching and sorting (n=13) (initialization): time 0.0001219/0.009804, allocations: 102.4 kB / 0.8196 GB, free: 8.145 MB / 0.7292 GB Notification: Performance of prepare postOptimizeDAE: time 1.417e-05/0.009819, allocations: 8 kB / 0.8196 GB, free: 8.137 MB / 0.7292 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.957e-06/0.009823, allocations: 0 / 0.8196 GB, free: 8.137 MB / 0.7292 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.2e-05/0.009835, allocations: 1.281 kB / 0.8196 GB, free: 8.137 MB / 0.7292 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.757e-05/0.009932, allocations: 23.98 kB / 0.8196 GB, free: 8.113 MB / 0.7292 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.961e-06/0.009938, allocations: 3.938 kB / 0.8196 GB, free: 8.109 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 4.873e-05/0.009987, allocations: 16.78 kB / 0.8196 GB, free: 8.094 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.433e-06/0.009994, allocations: 3.984 kB / 0.8197 GB, free: 8.09 MB / 0.7292 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 7.385e-05/0.01007, allocations: 149.7 kB / 0.8198 GB, free: 7.941 MB / 0.7292 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 2.366e-05/0.01009, allocations: 11.38 kB / 0.8198 GB, free: 7.934 MB / 0.7292 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 5.903e-05/0.01015, allocations: 51.61 kB / 0.8199 GB, free: 7.879 MB / 0.7292 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.91e-07/0.01015, allocations: 112 / 0.8199 GB, free: 7.879 MB / 0.7292 GB Notification: Performance of matching and sorting (n=13) (initialization_lambda0): time 9.885e-05/0.01025, allocations: 97.53 kB / 0.8199 GB, free: 7.777 MB / 0.7292 GB Notification: Performance of prepare postOptimizeDAE: time 5.911e-06/0.01026, allocations: 8 kB / 0.82 GB, free: 7.77 MB / 0.7292 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.502e-06/0.01026, allocations: 0 / 0.82 GB, free: 7.77 MB / 0.7292 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.134e-06/0.01026, allocations: 2.719 kB / 0.82 GB, free: 7.77 MB / 0.7292 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 5.359e-05/0.01031, allocations: 23.92 kB / 0.82 GB, free: 7.746 MB / 0.7292 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.635e-06/0.01032, allocations: 4 kB / 0.82 GB, free: 7.742 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 3.929e-05/0.01036, allocations: 19.83 kB / 0.82 GB, free: 7.723 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.875e-06/0.01036, allocations: 0 / 0.82 GB, free: 7.723 MB / 0.7292 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 (13): * Single equations (assignments): 13 * 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 8.803e-05/0.01045, allocations: 272.1 kB / 0.8203 GB, free: 7.449 MB / 0.7292 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.559e-05/0.01047, allocations: 19.91 kB / 0.8203 GB, free: 7.43 MB / 0.7292 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001618/0.01063, allocations: 108.4 kB / 0.8204 GB, free: 7.312 MB / 0.7292 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.507e-06/0.01064, allocations: 4 kB / 0.8204 GB, free: 7.309 MB / 0.7292 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.116e-06/0.01064, allocations: 1.062 kB / 0.8204 GB, free: 7.309 MB / 0.7292 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.857e-06/0.01064, allocations: 7.875 kB / 0.8204 GB, free: 7.301 MB / 0.7292 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001636/0.01081, allocations: 196.6 kB / 0.8206 GB, free: 7.074 MB / 0.7292 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.415e-06/0.01081, allocations: 5.078 kB / 0.8206 GB, free: 7.07 MB / 0.7292 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.527e-05/0.01087, allocations: 23.98 kB / 0.8206 GB, free: 7.047 MB / 0.7292 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.963e-06/0.01087, allocations: 0 / 0.8206 GB, free: 7.047 MB / 0.7292 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.372e-06/0.01087, allocations: 5.125 kB / 0.8206 GB, free: 7.043 MB / 0.7292 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.943e-06/0.01088, allocations: 4 kB / 0.8206 GB, free: 7.039 MB / 0.7292 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.243e-06/0.01088, allocations: 0 / 0.8206 GB, free: 7.039 MB / 0.7292 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001579/0.01103, allocations: 267.8 kB / 0.8209 GB, free: 6.762 MB / 0.7292 GB Notification: Performance of postOpt removeConstants (simulation): time 4.327e-05/0.01108, allocations: 27.83 kB / 0.8209 GB, free: 6.734 MB / 0.7292 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.398e-05/0.01109, allocations: 0 / 0.8209 GB, free: 6.734 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 5.46e-05/0.01115, allocations: 8.5 kB / 0.8209 GB, free: 6.727 MB / 0.7292 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.356e-05/0.01118, allocations: 9.297 kB / 0.8209 GB, free: 6.719 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.04e-06/0.01119, allocations: 4 kB / 0.8209 GB, free: 6.715 MB / 0.7292 GB Notification: Performance of sorting global known variables: time 8.194e-05/0.01127, allocations: 189.1 kB / 0.8211 GB, free: 6.531 MB / 0.7292 GB Notification: Performance of sort global known variables: time 5e-08/0.01127, allocations: 0.875 kB / 0.8211 GB, free: 6.531 MB / 0.7292 GB Notification: Performance of remove unused functions: time 0.000254/0.01152, allocations: 107.7 kB / 0.8212 GB, free: 6.426 MB / 0.7292 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 (13): * Single equations (assignments): 13 * 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 0.0001444/0.01167, allocations: 108.5 kB / 0.8213 GB, free: 6.312 MB / 0.7292 GB Notification: Performance of simCode: created initialization part: time 0.0001567/0.01182, allocations: 99.27 kB / 0.8214 GB, free: 6.207 MB / 0.7292 GB Notification: Performance of simCode: created event and clocks part: time 1.753e-06/0.01182, allocations: 0.9062 kB / 0.8214 GB, free: 6.207 MB / 0.7292 GB Notification: Performance of simCode: created simulation system equations: time 4.086e-05/0.01186, allocations: 43.55 kB / 0.8214 GB, free: 6.16 MB / 0.7292 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002881/0.01215, allocations: 59.95 kB / 0.8215 GB, free: 6.109 MB / 0.7292 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.000754/0.01291, allocations: 392 kB / 0.8219 GB, free: 5.695 MB / 0.7292 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 5.6e-05/0.01296, allocations: 79.97 kB / 0.822 GB, free: 5.598 MB / 0.7292 GB Notification: Performance of simCode: alias equations: time 5.825e-05/0.01302, allocations: 21.47 kB / 0.822 GB, free: 5.574 MB / 0.7292 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 3.375e-05/0.01305, allocations: 16.5 kB / 0.822 GB, free: 5.559 MB / 0.7292 GB Notification: Performance of SimCode: time 9.22e-07/0.01306, allocations: 0.7188 kB / 0.822 GB, free: 5.559 MB / 0.7292 GB Notification: Performance of Templates: time 0.00431/0.01737, allocations: 2.096 MB / 0.824 GB, free: 3.504 MB / 0.7292 GB " [Timeout remaining time 300] make -j1 -f Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.makefile [Timeout 300] (rm -f Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.pipe ; mkfifo Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.pipe ; head -c 1048576 < Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.pipe >> ../files/Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.sim & ./Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior.pipe 2>&1) [Timeout 240] diffSimulationResults("Buildings_12_Buildings.HeatTransfer.Convection.Examples.Interior_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_HeatTransfer_Convection_Examples_Interior.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 5.354558884631842]