Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.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 0.001913/0.001913, allocations: 84.39 kB / 20.23 MB, free: 4.199 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 0.001564/0.001564, allocations: 165.7 kB / 23.55 MB, free: 0.8867 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 1.453/1.453, allocations: 177.1 MB / 203.9 MB, free: 5.594 MB / 186.7 MB " [Timeout remaining time 178] 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 0.8991/0.8991, allocations: 110.3 MB / 370.6 MB, free: 12.44 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.MixingVolumeHeatReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow") translateModel(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.693e-06/1.693e-06, allocations: 0.6562 kB / 474.5 MB, free: 15.18 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.271e-05/2.441e-05, allocations: 2.312 kB / 474.5 MB, free: 15.18 MB / 410.7 MB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow): time 0.2383/0.2384, allocations: 168.4 MB / 0.6278 GB, free: 6.742 MB / 0.5417 GB Notification: Performance of NFInst.instExpressions: time 0.01099/0.2494, allocations: 5.454 MB / 0.6332 GB, free: 1.277 MB / 0.5417 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001182/0.2505, allocations: 55.5 kB / 0.6332 GB, free: 1.223 MB / 0.5417 GB Notification: Performance of NFTyping.typeComponents: time 0.001675/0.2522, allocations: 0.5666 MB / 0.6338 GB, free: 0.6523 MB / 0.5417 GB Notification: Performance of NFTyping.typeBindings: time 0.00504/0.2573, allocations: 1.97 MB / 0.6357 GB, free: 14.67 MB / 0.5573 GB Notification: Performance of NFTyping.typeClassSections: time 0.003326/0.2606, allocations: 1.239 MB / 0.6369 GB, free: 13.43 MB / 0.5573 GB Notification: Performance of NFFlatten.flatten: time 0.004586/0.2652, allocations: 3.048 MB / 0.6399 GB, free: 10.38 MB / 0.5573 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001389/0.2666, allocations: 0.7711 MB / 0.6406 GB, free: 9.586 MB / 0.5573 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002717/0.2693, allocations: 1.457 MB / 0.642 GB, free: 8.125 MB / 0.5573 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002137/0.2714, allocations: 0.8806 MB / 0.6429 GB, free: 7.254 MB / 0.5573 GB Notification: Performance of NFPackage.collectConstants: time 0.0002137/0.2716, allocations: 108 kB / 0.643 GB, free: 7.148 MB / 0.5573 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002793/0.2744, allocations: 1.215 MB / 0.6442 GB, free: 5.93 MB / 0.5573 GB Notification: Performance of NFScalarize.scalarize: time 0.0006008/0.275, allocations: 0.4947 MB / 0.6447 GB, free: 5.434 MB / 0.5573 GB Notification: Performance of NFVerifyModel.verify: time 0.0007397/0.2758, allocations: 486.9 kB / 0.6451 GB, free: 4.957 MB / 0.5573 GB Notification: Performance of NFConvertDAE.convert: time 0.003581/0.2793, allocations: 2.24 MB / 0.6473 GB, free: 2.711 MB / 0.5573 GB Notification: Performance of FrontEnd - DAE generated: time 3.887e-06/0.2793, allocations: 0 / 0.6473 GB, free: 2.711 MB / 0.5573 GB Notification: Performance of FrontEnd: time 1.172e-06/0.2793, allocations: 0 / 0.6473 GB, free: 2.711 MB / 0.5573 GB Notification: Performance of Transformations before backend: time 2.19e-05/0.2794, allocations: 4 kB / 0.6473 GB, free: 2.707 MB / 0.5573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 213 * Number of variables: 213 Notification: Performance of Generate backend data structure: time 0.002793/0.2822, allocations: 1.469 MB / 0.6488 GB, free: 1.199 MB / 0.5573 GB Notification: Performance of prepare preOptimizeDAE: time 4.675e-05/0.2822, allocations: 8.625 kB / 0.6488 GB, free: 1.191 MB / 0.5573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002268/0.2845, allocations: 422.5 kB / 0.6492 GB, free: 0.7773 MB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.1722/0.4566, allocations: 0.8266 MB / 0.65 GB, free: 179.1 MB / 0.5573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.642e-05/0.4567, allocations: 64.03 kB / 0.65 GB, free: 179.1 MB / 0.5573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002723/0.457, allocations: 89.83 kB / 0.6501 GB, free: 179.1 MB / 0.5573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001814/0.4588, allocations: 1.366 MB / 0.6515 GB, free: 178.3 MB / 0.5573 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.475e-05/0.4588, allocations: 1.516 kB / 0.6515 GB, free: 178.3 MB / 0.5573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.812e-05/0.4589, allocations: 39.31 kB / 0.6515 GB, free: 178.3 MB / 0.5573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.518e-05/0.459, allocations: 32.61 kB / 0.6515 GB, free: 178.3 MB / 0.5573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001375/0.4603, allocations: 0.8239 MB / 0.6523 GB, free: 178 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 0.004328/0.4647, allocations: 2.419 MB / 0.6547 GB, free: 177.1 MB / 0.5573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006476/0.4653, allocations: 482 kB / 0.6552 GB, free: 176.9 MB / 0.5573 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003713/0.4657, allocations: 271.2 kB / 0.6554 GB, free: 176.8 MB / 0.5573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001494/0.4658, allocations: 33.77 kB / 0.6555 GB, free: 176.8 MB / 0.5573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.058e-05/0.4658, allocations: 41.56 kB / 0.6555 GB, free: 176.7 MB / 0.5573 GB Notification: Performance of pre-optimization done (n=47): time 2.965e-06/0.4658, allocations: 1.594 kB / 0.6555 GB, free: 176.7 MB / 0.5573 GB Notification: Performance of matching and sorting (n=49): time 0.003447/0.4693, allocations: 1.717 MB / 0.6572 GB, free: 175.9 MB / 0.5573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.859e-05/0.4693, allocations: 62.97 kB / 0.6572 GB, free: 175.9 MB / 0.5573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006267/0.47, allocations: 0.6425 MB / 0.6579 GB, free: 175.6 MB / 0.5573 GB Notification: Performance of collectPreVariables (initialization): time 4.583e-05/0.47, allocations: 38.83 kB / 0.6579 GB, free: 175.6 MB / 0.5573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002175/0.4702, allocations: 496.1 kB / 0.6584 GB, free: 175.2 MB / 0.5573 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001108/0.4703, allocations: 174.6 kB / 0.6585 GB, free: 175.1 MB / 0.5573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001617/0.4705, allocations: 115.8 kB / 0.6586 GB, free: 175 MB / 0.5573 GB Notification: Performance of setup shared object (initialization): time 8.539e-05/0.4706, allocations: 382.9 kB / 0.659 GB, free: 174.7 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003652/0.4709, allocations: 242.6 kB / 0.6592 GB, free: 174.6 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004361/0.4714, allocations: 409 kB / 0.6596 GB, free: 174.4 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 0.003318/0.4747, allocations: 1.453 MB / 0.6611 GB, free: 173.8 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.965e-06/0.4747, allocations: 4.031 kB / 0.6611 GB, free: 173.8 MB / 0.5573 GB Notification: Performance of matching and sorting (n=72) (initialization): time 0.001194/0.4759, allocations: 0.7957 MB / 0.6618 GB, free: 173.5 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.664e-05/0.4759, allocations: 6.469 kB / 0.6618 GB, free: 173.5 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.034e-05/0.4759, allocations: 6.969 kB / 0.6618 GB, free: 173.5 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002974/0.4762, allocations: 94.36 kB / 0.6619 GB, free: 173.5 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006192/0.4768, allocations: 143.1 kB / 0.6621 GB, free: 173.4 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002258/0.4791, allocations: 3.045 MB / 0.665 GB, free: 170.8 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006876/0.4798, allocations: 30.7 kB / 0.6651 GB, free: 170.8 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.876e-05/0.4798, allocations: 21.03 kB / 0.6651 GB, free: 170.8 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: 12 * 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 (67): * Single equations (assignments): 65 * 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 {(1,4), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.0003836/0.4802, allocations: 296.2 kB / 0.6654 GB, free: 170.6 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001473/0.4804, allocations: 103.7 kB / 0.6655 GB, free: 170.5 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001405/0.4805, allocations: 87.5 kB / 0.6656 GB, free: 170.4 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.937e-06/0.4805, allocations: 5.812 kB / 0.6656 GB, free: 170.4 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.983e-06/0.4805, allocations: 3.938 kB / 0.6656 GB, free: 170.4 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0008486/0.4814, allocations: 0.8464 MB / 0.6664 GB, free: 169.8 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002317/0.4837, allocations: 1.543 MB / 0.6679 GB, free: 169.1 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.771e-06/0.4837, allocations: 2.5 kB / 0.6679 GB, free: 169.1 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005834/0.4843, allocations: 127.3 kB / 0.668 GB, free: 169 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000203/0.4845, allocations: 67.59 kB / 0.6681 GB, free: 169 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.219e-05/0.4845, allocations: 15.78 kB / 0.6681 GB, free: 169 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001216/0.4857, allocations: 1.658 MB / 0.6697 GB, free: 167.6 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.025e-06/0.4857, allocations: 9.219 kB / 0.6697 GB, free: 167.6 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001355/0.4871, allocations: 1.066 MB / 0.6708 GB, free: 167 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002918/0.4874, allocations: 149.1 kB / 0.6709 GB, free: 167 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.533e-05/0.4875, allocations: 13.53 kB / 0.6709 GB, free: 167 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006544/0.4881, allocations: 31.42 kB / 0.671 GB, free: 167 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000107/0.4882, allocations: 49.7 kB / 0.671 GB, free: 166.9 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.079e-05/0.4883, allocations: 30.16 kB / 0.671 GB, free: 166.9 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0004351/0.4887, allocations: 450.9 kB / 0.6715 GB, free: 166.7 MB / 0.5573 GB Notification: Performance of sort global known variables: time 7e-08/0.4887, allocations: 0 / 0.6715 GB, free: 166.7 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0008262/0.4896, allocations: 287.3 kB / 0.6717 GB, free: 166.7 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 {(1,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003429/0.4899, allocations: 172.2 kB / 0.6719 GB, free: 166.6 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.001121/0.491, allocations: 0.7829 MB / 0.6727 GB, free: 166.2 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 5.27e-06/0.491, allocations: 0 / 0.6727 GB, free: 166.2 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.0004952/0.4915, allocations: 404.9 kB / 0.6731 GB, free: 166 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002113/0.4936, allocations: 0.5103 MB / 0.6736 GB, free: 165.9 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003422/0.4971, allocations: 1.748 MB / 0.6753 GB, free: 164.9 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007317/0.4978, allocations: 0.4895 MB / 0.6757 GB, free: 164.8 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.000721/0.4985, allocations: 193.1 kB / 0.6759 GB, free: 164.8 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000205/0.4987, allocations: 62.44 kB / 0.676 GB, free: 164.8 MB / 0.5573 GB Notification: Performance of SimCode: time 1.383e-06/0.4987, allocations: 1.922 kB / 0.676 GB, free: 164.8 MB / 0.5573 GB Notification: Performance of Templates: time 0.02937/0.5281, allocations: 18.27 MB / 0.6938 GB, free: 160.5 MB / 0.5573 GB " [Timeout remaining time 659] make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.makefile [Timeout 660] (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 6.351282416959293]