Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.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 0.001508/0.001508, allocations: 88.23 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 0.001416/0.001416, allocations: 161 kB / 23.82 MB, free: 0.7461 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 0.9853/0.9853, allocations: 177.1 MB / 204.2 MB, free: 5.605 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.5697/0.5697, allocations: 110.3 MB / 371 MB, free: 12.48 MB / 346.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow") translateModel(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.583e-06/1.583e-06, allocations: 0 / 475.2 MB, free: 15.19 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.183e-05/2.341e-05, allocations: 4.828 kB / 475.2 MB, free: 15.18 MB / 410.7 MB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow): time 0.1655/0.1655, allocations: 155.4 MB / 0.6159 GB, free: 3.43 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.006187/0.1717, allocations: 3.865 MB / 0.6196 GB, free: 15.56 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007856/0.1725, allocations: 59.44 kB / 0.6197 GB, free: 15.5 MB / 0.5417 GB Notification: Performance of NFTyping.typeComponents: time 0.0006733/0.1732, allocations: 301.8 kB / 0.62 GB, free: 15.2 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.001823/0.175, allocations: 1.185 MB / 0.6211 GB, free: 14.01 MB / 0.5417 GB Notification: Performance of NFTyping.typeClassSections: time 0.001343/0.1764, allocations: 0.9042 MB / 0.622 GB, free: 13.11 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.002738/0.1791, allocations: 2.994 MB / 0.625 GB, free: 10.11 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0009999/0.1801, allocations: 0.7934 MB / 0.6257 GB, free: 9.293 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002464/0.1826, allocations: 1.633 MB / 0.6273 GB, free: 7.73 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001353/0.1839, allocations: 0.8686 MB / 0.6282 GB, free: 6.859 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 0.0002112/0.1841, allocations: 108 kB / 0.6283 GB, free: 6.754 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007653/0.1849, allocations: 407 kB / 0.6287 GB, free: 6.355 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.0003614/0.1852, allocations: 0.4986 MB / 0.6291 GB, free: 5.855 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.0005619/0.1858, allocations: 467 kB / 0.6296 GB, free: 5.398 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.001406/0.1872, allocations: 1.207 MB / 0.6308 GB, free: 4.188 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 4.128e-06/0.1872, allocations: 0 / 0.6308 GB, free: 4.188 MB / 0.5417 GB Notification: Performance of FrontEnd: time 1.152e-06/0.1872, allocations: 4 kB / 0.6308 GB, free: 4.184 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 3.361e-05/0.1873, allocations: 0 / 0.6308 GB, free: 4.184 MB / 0.5417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 215 * Number of variables: 215 Notification: Performance of Generate backend data structure: time 0.001689/0.1889, allocations: 1.492 MB / 0.6322 GB, free: 2.648 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 3.83e-05/0.189, allocations: 8.625 kB / 0.6322 GB, free: 2.641 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001155/0.1901, allocations: 407.4 kB / 0.6326 GB, free: 2.242 MB / 0.5417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008857/0.191, allocations: 0.7814 MB / 0.6334 GB, free: 1.438 MB / 0.5417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001023/0.1911, allocations: 74.05 kB / 0.6335 GB, free: 1.363 MB / 0.5417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.081e-05/0.1912, allocations: 92 kB / 0.6335 GB, free: 1.273 MB / 0.5417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008752/0.1921, allocations: 0.9986 MB / 0.6345 GB, free: 160 kB / 0.5417 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.953e-05/0.1921, allocations: 0 / 0.6345 GB, free: 160 kB / 0.5417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.611e-05/0.1922, allocations: 44 kB / 0.6346 GB, free: 116 kB / 0.5417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.021e-05/0.1922, allocations: 30 kB / 0.6346 GB, free: 88 kB / 0.5417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005394/0.1927, allocations: 347.8 kB / 0.6349 GB, free: 15.74 MB / 0.5573 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 0.003232/0.196, allocations: 2.19 MB / 0.6371 GB, free: 13.5 MB / 0.5573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004324/0.1964, allocations: 274.2 kB / 0.6373 GB, free: 13.22 MB / 0.5573 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001816/0.1966, allocations: 130.1 kB / 0.6375 GB, free: 13.09 MB / 0.5573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000129/0.1967, allocations: 28.36 kB / 0.6375 GB, free: 13.07 MB / 0.5573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.672e-05/0.1967, allocations: 41.77 kB / 0.6375 GB, free: 13.02 MB / 0.5573 GB Notification: Performance of pre-optimization done (n=45): time 2.555e-06/0.1968, allocations: 0 / 0.6375 GB, free: 13.02 MB / 0.5573 GB Notification: Performance of matching and sorting (n=47): time 0.002048/0.1988, allocations: 1.036 MB / 0.6385 GB, free: 11.94 MB / 0.5573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003212/0.1991, allocations: 59.91 kB / 0.6386 GB, free: 11.87 MB / 0.5573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005096/0.1996, allocations: 0.6321 MB / 0.6392 GB, free: 11.22 MB / 0.5573 GB Notification: Performance of collectPreVariables (initialization): time 3.791e-05/0.1997, allocations: 33.7 kB / 0.6392 GB, free: 11.18 MB / 0.5573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002698/0.1999, allocations: 0.5456 MB / 0.6398 GB, free: 10.63 MB / 0.5573 GB Notification: Performance of collectInitialBindings (initialization): time 0.000107/0.2, allocations: 174.5 kB / 0.6399 GB, free: 10.46 MB / 0.5573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001305/0.2002, allocations: 123.9 kB / 0.6401 GB, free: 10.33 MB / 0.5573 GB Notification: Performance of setup shared object (initialization): time 0.0001651/0.2003, allocations: 0.5586 MB / 0.6406 GB, free: 9.758 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000156/0.2005, allocations: 85.25 kB / 0.6407 GB, free: 9.672 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002374/0.2007, allocations: 298 kB / 0.641 GB, free: 9.316 MB / 0.5573 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: volDyn.dynBal.medium.p = volDyn.dynBal.p_start (bou.p = volDyn.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.0007304/0.2015, allocations: 0.5643 MB / 0.6415 GB, free: 8.695 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.966e-06/0.2015, allocations: 0 / 0.6415 GB, free: 8.695 MB / 0.5573 GB Notification: Performance of matching and sorting (n=72) (initialization): time 0.0006044/0.2021, allocations: 492.4 kB / 0.642 GB, free: 8.195 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 2.204e-05/0.2021, allocations: 8 kB / 0.642 GB, free: 8.188 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.067e-06/0.2021, allocations: 7.938 kB / 0.642 GB, free: 8.18 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000124/0.2022, allocations: 47.34 kB / 0.642 GB, free: 8.125 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003651/0.2026, allocations: 131.8 kB / 0.6422 GB, free: 7.996 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001953/0.2045, allocations: 3.524 MB / 0.6456 GB, free: 4.227 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003681/0.2049, allocations: 23.94 kB / 0.6456 GB, free: 4.203 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.766e-05/0.2049, allocations: 24 kB / 0.6457 GB, free: 4.18 MB / 0.5573 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system: volDyn.dynBal.medium.p = volDyn.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * 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 (69): * Single equations (assignments): 67 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0002115/0.2052, allocations: 196.5 kB / 0.6458 GB, free: 3.977 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001057/0.2053, allocations: 103.5 kB / 0.6459 GB, free: 3.875 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 7.888e-05/0.2053, allocations: 79.36 kB / 0.646 GB, free: 3.789 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.566e-06/0.2053, allocations: 4 kB / 0.646 GB, free: 3.785 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.397e-06/0.2054, allocations: 4 kB / 0.646 GB, free: 3.781 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004419/0.2058, allocations: 0.5736 MB / 0.6466 GB, free: 3.117 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001428/0.2072, allocations: 1.297 MB / 0.6479 GB, free: 1.723 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.228e-06/0.2072, allocations: 4 kB / 0.6479 GB, free: 1.719 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002883/0.2075, allocations: 115.9 kB / 0.648 GB, free: 1.605 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.922e-05/0.2076, allocations: 23.67 kB / 0.648 GB, free: 1.578 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.618e-05/0.2076, allocations: 12 kB / 0.648 GB, free: 1.566 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.2204/0.428, allocations: 1.784 MB / 0.6497 GB, free: 48.61 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.63e-06/0.428, allocations: 6.562 kB / 0.6498 GB, free: 48.61 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001041/0.4291, allocations: 0.6954 MB / 0.6504 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003042/0.4294, allocations: 143.7 kB / 0.6506 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.612e-05/0.4295, allocations: 10.47 kB / 0.6506 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003644/0.4298, allocations: 28.23 kB / 0.6506 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001107/0.4299, allocations: 44.69 kB / 0.6506 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.991e-05/0.43, allocations: 30.12 kB / 0.6507 GB, free: 48.26 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0004249/0.4304, allocations: 404.1 kB / 0.6511 GB, free: 48.12 MB / 0.5573 GB Notification: Performance of sort global known variables: time 4.31e-07/0.4304, allocations: 1 kB / 0.6511 GB, free: 48.12 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0007607/0.4312, allocations: 270.1 kB / 0.6513 GB, free: 48.12 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 14 * Number of states: 2 (volDyn.dynBal.medium.Xi[1],volDyn.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 (45): * Single equations (assignments): 44 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003224/0.4315, allocations: 153.6 kB / 0.6515 GB, free: 48.03 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.0008458/0.4323, allocations: 0.6383 MB / 0.6521 GB, free: 47.69 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 6.523e-06/0.4324, allocations: 3.156 kB / 0.6521 GB, free: 47.69 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.0002739/0.4326, allocations: 331.7 kB / 0.6524 GB, free: 47.5 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001418/0.434, allocations: 0.5009 MB / 0.6529 GB, free: 47.48 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002295/0.4363, allocations: 1.61 MB / 0.6545 GB, free: 46.65 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001524/0.4365, allocations: 232.3 kB / 0.6547 GB, free: 46.58 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.0005787/0.4371, allocations: 167.8 kB / 0.6549 GB, free: 46.56 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001398/0.4372, allocations: 63.06 kB / 0.6549 GB, free: 46.55 MB / 0.5573 GB Notification: Performance of SimCode: time 1.493e-06/0.4372, allocations: 3.688 kB / 0.6549 GB, free: 46.55 MB / 0.5573 GB Notification: Performance of Templates: time 0.02285/0.4601, allocations: 18.71 MB / 0.6732 GB, free: 45.04 MB / 0.5573 GB " [Timeout remaining time 660] make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.makefile [Timeout 660] (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow -abortSlowSimulation -alarm=240 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeMoistureReverseFlow.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 4.243576731067151]