Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.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 0.0009588/0.0009588, allocations: 85.41 kB / 20.83 MB, free: 3.629 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 0.001115/0.001115, allocations: 169.3 kB / 24.25 MB, free: 204 kB / 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 0.9383/0.9383, allocations: 177.1 MB / 204.7 MB, free: 5.465 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo): time 1.839/1.839, allocations: 389.6 MB / 0.6355 GB, free: 12.25 MB / 0.6042 GB " [Timeout remaining time 178] Using package Buildings with version 13.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.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.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT") translateModel(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.723e-06/1.723e-06, allocations: 0 / 0.7754 GB, free: 5.246 MB / 0.7292 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.227e-05/2.399e-05, allocations: 2.312 kB / 0.7754 GB, free: 5.242 MB / 0.7292 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT): time 0.01552/0.01555, allocations: 18.08 MB / 0.793 GB, free: 3.227 MB / 0.7448 GB Notification: Performance of NFInst.instExpressions: time 0.006156/0.02171, allocations: 4.338 MB / 0.7973 GB, free: 14.91 MB / 0.7605 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007787/0.02248, allocations: 51.56 kB / 0.7973 GB, free: 14.86 MB / 0.7605 GB Notification: Performance of NFTyping.typeComponents: time 0.0005696/0.02305, allocations: 239.2 kB / 0.7975 GB, free: 14.62 MB / 0.7605 GB Notification: Performance of NFTyping.typeBindings: time 0.001466/0.02452, allocations: 0.9237 MB / 0.7984 GB, free: 13.7 MB / 0.7605 GB Notification: Performance of NFTyping.typeClassSections: time 0.001298/0.02582, allocations: 0.8888 MB / 0.7993 GB, free: 12.81 MB / 0.7605 GB Notification: Performance of NFFlatten.flatten: time 0.00169/0.02751, allocations: 2.168 MB / 0.8014 GB, free: 10.64 MB / 0.7605 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0008097/0.02832, allocations: 0.5422 MB / 0.802 GB, free: 10.1 MB / 0.7605 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006308/0.03462, allocations: 4.508 MB / 0.8064 GB, free: 5.609 MB / 0.7605 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005301/0.03515, allocations: 482.4 kB / 0.8068 GB, free: 5.137 MB / 0.7605 GB Notification: Performance of NFPackage.collectConstants: time 6.601e-05/0.03522, allocations: 52 kB / 0.8069 GB, free: 5.086 MB / 0.7605 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007598/0.03598, allocations: 0.4989 MB / 0.8074 GB, free: 4.586 MB / 0.7605 GB Notification: Performance of NFScalarize.scalarize: time 0.0001277/0.03611, allocations: 175.2 kB / 0.8075 GB, free: 4.414 MB / 0.7605 GB Notification: Performance of NFVerifyModel.verify: time 0.0001967/0.03631, allocations: 259.4 kB / 0.8078 GB, free: 4.16 MB / 0.7605 GB Notification: Performance of NFConvertDAE.convert: time 0.0009265/0.03723, allocations: 0.8136 MB / 0.8086 GB, free: 3.344 MB / 0.7605 GB Notification: Performance of FrontEnd - DAE generated: time 4.028e-06/0.03724, allocations: 0 / 0.8086 GB, free: 3.344 MB / 0.7605 GB Notification: Performance of FrontEnd: time 1.853e-06/0.03724, allocations: 4 kB / 0.8086 GB, free: 3.34 MB / 0.7605 GB Notification: Performance of Transformations before backend: time 8.125e-06/0.03725, allocations: 3.938 kB / 0.8086 GB, free: 3.336 MB / 0.7605 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 110 * Number of variables: 110 Notification: Performance of Generate backend data structure: time 0.0008903/0.03814, allocations: 0.9264 MB / 0.8095 GB, free: 2.379 MB / 0.7605 GB Notification: Performance of prepare preOptimizeDAE: time 3.198e-05/0.03817, allocations: 9.344 kB / 0.8095 GB, free: 2.371 MB / 0.7605 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002101/0.03838, allocations: 104.7 kB / 0.8096 GB, free: 2.27 MB / 0.7605 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005376/0.03892, allocations: 0.4962 MB / 0.8101 GB, free: 1.742 MB / 0.7605 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.562e-05/0.03894, allocations: 41.34 kB / 0.8101 GB, free: 1.703 MB / 0.7605 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.874e-05/0.03899, allocations: 48.38 kB / 0.8102 GB, free: 1.656 MB / 0.7605 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003784/0.03937, allocations: 0.5087 MB / 0.8107 GB, free: 1.082 MB / 0.7605 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.627e-05/0.03938, allocations: 8 kB / 0.8107 GB, free: 1.074 MB / 0.7605 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.611e-05/0.03941, allocations: 23.98 kB / 0.8107 GB, free: 1.051 MB / 0.7605 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.698e-05/0.03944, allocations: 12 kB / 0.8107 GB, free: 1.039 MB / 0.7605 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001524/0.03959, allocations: 137.6 kB / 0.8108 GB, free: 0.9023 MB / 0.7605 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001296/0.04089, allocations: 1.604 MB / 0.8124 GB, free: 15.23 MB / 0.7761 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001413/0.04103, allocations: 155.6 kB / 0.8125 GB, free: 15.07 MB / 0.7761 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001051/0.04113, allocations: 43.67 kB / 0.8126 GB, free: 15.02 MB / 0.7761 GB Notification: Performance of preOpt evalFunc (simulation): time 9.927e-05/0.04123, allocations: 27.98 kB / 0.8126 GB, free: 15 MB / 0.7761 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.23e-05/0.04125, allocations: 38.56 kB / 0.8126 GB, free: 14.95 MB / 0.7761 GB Notification: Performance of pre-optimization done (n=21): time 2.645e-06/0.04126, allocations: 0 / 0.8126 GB, free: 14.95 MB / 0.7761 GB Notification: Performance of matching and sorting (n=21): time 0.0002089/0.04147, allocations: 151.9 kB / 0.8128 GB, free: 14.8 MB / 0.7761 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.568e-05/0.04149, allocations: 55.41 kB / 0.8128 GB, free: 14.73 MB / 0.7761 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002775/0.04177, allocations: 480.6 kB / 0.8133 GB, free: 14.25 MB / 0.7761 GB Notification: Performance of collectPreVariables (initialization): time 2.143e-05/0.04179, allocations: 33.7 kB / 0.8133 GB, free: 14.21 MB / 0.7761 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001168/0.04191, allocations: 289.3 kB / 0.8136 GB, free: 13.92 MB / 0.7761 GB Notification: Performance of collectInitialBindings (initialization): time 4.068e-05/0.04195, allocations: 79.31 kB / 0.8137 GB, free: 13.84 MB / 0.7761 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.678e-05/0.04201, allocations: 81.56 kB / 0.8138 GB, free: 13.75 MB / 0.7761 GB Notification: Performance of setup shared object (initialization): time 8.972e-05/0.0421, allocations: 374.6 kB / 0.8141 GB, free: 13.38 MB / 0.7761 GB Notification: Performance of preBalanceInitialSystem (initialization): time 4.519e-05/0.04215, allocations: 35.67 kB / 0.8142 GB, free: 13.34 MB / 0.7761 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002519/0.0424, allocations: 255 kB / 0.8144 GB, free: 13.01 MB / 0.7761 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001548/0.04256, allocations: 222.3 kB / 0.8146 GB, free: 12.73 MB / 0.7761 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.396e-06/0.04256, allocations: 4 kB / 0.8146 GB, free: 12.73 MB / 0.7761 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.0002102/0.04277, allocations: 237.4 kB / 0.8148 GB, free: 12.49 MB / 0.7761 GB Notification: Performance of prepare postOptimizeDAE: time 1.337e-05/0.04278, allocations: 11.94 kB / 0.8149 GB, free: 12.48 MB / 0.7761 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.392e-06/0.04279, allocations: 4 kB / 0.8149 GB, free: 12.47 MB / 0.7761 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.273e-05/0.0428, allocations: 11.94 kB / 0.8149 GB, free: 12.46 MB / 0.7761 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001646/0.04297, allocations: 71.91 kB / 0.8149 GB, free: 12.39 MB / 0.7761 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.036e-06/0.04298, allocations: 19.91 kB / 0.815 GB, free: 12.37 MB / 0.7761 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001328/0.04311, allocations: 40.08 kB / 0.815 GB, free: 12.33 MB / 0.7761 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.605e-05/0.04312, allocations: 12 kB / 0.815 GB, free: 12.32 MB / 0.7761 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 9.432e-05/0.04322, allocations: 129.7 kB / 0.8151 GB, free: 12.19 MB / 0.7761 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0001064/0.04333, allocations: 243.1 kB / 0.8154 GB, free: 11.87 MB / 0.7761 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0001458/0.04347, allocations: 237.6 kB / 0.8156 GB, free: 11.58 MB / 0.7761 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.302e-06/0.04347, allocations: 0 / 0.8156 GB, free: 11.58 MB / 0.7761 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.0001906/0.04366, allocations: 237.4 kB / 0.8158 GB, free: 11.34 MB / 0.7761 GB Notification: Performance of prepare postOptimizeDAE: time 6.001e-06/0.04367, allocations: 4 kB / 0.8158 GB, free: 11.34 MB / 0.7761 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.757e-06/0.04367, allocations: 8 kB / 0.8158 GB, free: 11.33 MB / 0.7761 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.519e-06/0.04368, allocations: 4.562 kB / 0.8158 GB, free: 11.32 MB / 0.7761 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001308/0.04381, allocations: 87.84 kB / 0.8159 GB, free: 11.24 MB / 0.7761 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.961e-06/0.04381, allocations: 7.984 kB / 0.8159 GB, free: 11.23 MB / 0.7761 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001151/0.04393, allocations: 27.83 kB / 0.8159 GB, free: 11.2 MB / 0.7761 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.368e-05/0.04394, allocations: 15.94 kB / 0.816 GB, free: 11.19 MB / 0.7761 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * 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 (43): * Single equations (assignments): 43 * 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 7.591e-05/0.04402, allocations: 196.2 kB / 0.8161 GB, free: 10.99 MB / 0.7761 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.564e-05/0.04406, allocations: 47.89 kB / 0.8162 GB, free: 10.94 MB / 0.7761 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002093/0.04427, allocations: 170.8 kB / 0.8164 GB, free: 10.77 MB / 0.7761 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.679e-06/0.04428, allocations: 0 / 0.8164 GB, free: 10.77 MB / 0.7761 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.282e-06/0.04428, allocations: 3.938 kB / 0.8164 GB, free: 10.77 MB / 0.7761 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001231/0.0444, allocations: 280.5 kB / 0.8166 GB, free: 10.45 MB / 0.7761 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006418/0.04504, allocations: 0.6822 MB / 0.8173 GB, free: 9.711 MB / 0.7761 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.439e-06/0.04505, allocations: 8 kB / 0.8173 GB, free: 9.703 MB / 0.7761 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000138/0.04519, allocations: 55.91 kB / 0.8174 GB, free: 9.648 MB / 0.7761 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.717e-06/0.04519, allocations: 4 kB / 0.8174 GB, free: 9.645 MB / 0.7761 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.336e-05/0.0452, allocations: 16.19 kB / 0.8174 GB, free: 9.629 MB / 0.7761 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.867e-06/0.04521, allocations: 7.938 kB / 0.8174 GB, free: 9.621 MB / 0.7761 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.392e-06/0.04521, allocations: 0 / 0.8174 GB, free: 9.621 MB / 0.7761 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005075/0.04572, allocations: 374 kB / 0.8177 GB, free: 9.219 MB / 0.7761 GB Notification: Performance of postOpt removeConstants (simulation): time 9.266e-05/0.04581, allocations: 67.58 kB / 0.8178 GB, free: 9.152 MB / 0.7761 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.314e-05/0.04584, allocations: 11.94 kB / 0.8178 GB, free: 9.141 MB / 0.7761 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001303/0.04597, allocations: 15.98 kB / 0.8178 GB, free: 9.125 MB / 0.7761 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 2.2e-05/0.04599, allocations: 23.91 kB / 0.8179 GB, free: 9.102 MB / 0.7761 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.711e-05/0.04601, allocations: 11.98 kB / 0.8179 GB, free: 9.09 MB / 0.7761 GB Notification: Performance of sorting global known variables: time 0.0001441/0.04616, allocations: 211.2 kB / 0.8181 GB, free: 8.883 MB / 0.7761 GB Notification: Performance of sort global known variables: time 5e-08/0.04616, allocations: 0 / 0.8181 GB, free: 8.883 MB / 0.7761 GB Notification: Performance of remove unused functions: time 0.0005135/0.04667, allocations: 335.2 kB / 0.8184 GB, free: 8.555 MB / 0.7761 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 2 (vol.dynBal.U,vol1.dynBal.U) * 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 (24): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * 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 0.000252/0.04692, allocations: 178.1 kB / 0.8186 GB, free: 8.371 MB / 0.7761 GB Notification: Performance of simCode: created initialization part: time 0.0002686/0.04719, allocations: 248.1 kB / 0.8188 GB, free: 8.125 MB / 0.7761 GB Notification: Performance of simCode: created event and clocks part: time 9.729e-06/0.0472, allocations: 8 kB / 0.8188 GB, free: 8.117 MB / 0.7761 GB Notification: Performance of simCode: created simulation system equations: time 5.842e-05/0.04726, allocations: 65.53 kB / 0.8189 GB, free: 8.051 MB / 0.7761 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007071/0.04797, allocations: 337.4 kB / 0.8192 GB, free: 7.73 MB / 0.7761 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001193/0.04916, allocations: 0.9522 MB / 0.8201 GB, free: 6.715 MB / 0.7761 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 8.129e-05/0.04924, allocations: 133.9 kB / 0.8202 GB, free: 6.562 MB / 0.7761 GB Notification: Performance of simCode: alias equations: time 0.0002673/0.04951, allocations: 109.5 kB / 0.8203 GB, free: 6.461 MB / 0.7761 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004037/0.04991, allocations: 265.1 kB / 0.8206 GB, free: 6.203 MB / 0.7761 GB Notification: Performance of SimCode: time 1.232e-06/0.04991, allocations: 0 / 0.8206 GB, free: 6.203 MB / 0.7761 GB Notification: Performance of Templates: time 0.01421/0.06412, allocations: 12.21 MB / 0.8325 GB, free: 10.33 MB / 0.7917 GB " [Timeout remaining time 300] make -j1 -f Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.makefile [Timeout 300] (rm -f Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.pipe ; mkfifo Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.pipe >> ../files/Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.sim & ./Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT -abortSlowSimulation -alarm=240 -lv LOG_STATS > Buildings_13_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterConstantProperties_pT.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 5.190957512706518]