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 0.0009207/0.0009207, allocations: 92.22 kB / 20.46 MB, free: 4.113 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 0.0009434/0.0009434, 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 0.964/0.964, allocations: 177.1 MB / 204.2 MB, free: 5.625 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 0.5724/0.5724, allocations: 110.3 MB / 371 MB, free: 12.54 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 1.843e-06/1.843e-06, allocations: 0 / 475.2 MB, free: 15.14 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.243e-05/3.427e-05, allocations: 4.938 kB / 475.2 MB, free: 15.14 MB / 410.7 MB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow): time 0.1622/0.1623, allocations: 151.1 MB / 0.6116 GB, free: 7.77 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.00666/0.1689, allocations: 3.855 MB / 0.6154 GB, free: 3.914 MB / 0.5261 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009993/0.1699, allocations: 59.5 kB / 0.6154 GB, free: 3.855 MB / 0.5261 GB Notification: Performance of NFTyping.typeComponents: time 0.0008761/0.1708, allocations: 305.7 kB / 0.6157 GB, free: 3.555 MB / 0.5261 GB Notification: Performance of NFTyping.typeBindings: time 0.002608/0.1734, allocations: 1.177 MB / 0.6169 GB, free: 2.371 MB / 0.5261 GB Notification: Performance of NFTyping.typeClassSections: time 0.001585/0.175, allocations: 0.912 MB / 0.6178 GB, free: 1.457 MB / 0.5261 GB Notification: Performance of NFFlatten.flatten: time 0.003001/0.178, allocations: 2.994 MB / 0.6207 GB, free: 14.46 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001064/0.1791, allocations: 0.7595 MB / 0.6214 GB, free: 13.69 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002232/0.1813, allocations: 1.536 MB / 0.6229 GB, free: 12.18 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001454/0.1827, allocations: 0.8608 MB / 0.6238 GB, free: 11.32 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 0.0001767/0.1829, allocations: 108 kB / 0.6239 GB, free: 11.21 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0007609/0.1837, allocations: 403.1 kB / 0.6243 GB, free: 10.82 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.0003438/0.184, allocations: 0.4986 MB / 0.6247 GB, free: 10.32 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.0004499/0.1845, allocations: 471 kB / 0.6252 GB, free: 9.859 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.001265/0.1857, allocations: 1.215 MB / 0.6264 GB, free: 8.641 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 3.146e-06/0.1857, allocations: 0 / 0.6264 GB, free: 8.641 MB / 0.5417 GB Notification: Performance of FrontEnd: time 1.072e-06/0.1857, allocations: 0 / 0.6264 GB, free: 8.641 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 2.137e-05/0.1858, allocations: 4 kB / 0.6264 GB, free: 8.637 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: 213 * Number of variables: 213 Notification: Performance of Generate backend data structure: time 0.001658/0.1874, allocations: 1.492 MB / 0.6278 GB, free: 7.102 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 3.788e-05/0.1875, allocations: 16.56 kB / 0.6279 GB, free: 7.086 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001026/0.1885, allocations: 407.4 kB / 0.6282 GB, free: 6.688 MB / 0.5417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008295/0.1893, allocations: 0.7774 MB / 0.629 GB, free: 5.887 MB / 0.5417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.109e-05/0.1894, allocations: 66.12 kB / 0.6291 GB, free: 5.82 MB / 0.5417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.955e-05/0.1895, allocations: 95.98 kB / 0.6292 GB, free: 5.727 MB / 0.5417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009226/0.1904, allocations: 0.9986 MB / 0.6301 GB, free: 4.609 MB / 0.5417 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.891e-05/0.1904, allocations: 3.938 kB / 0.6301 GB, free: 4.605 MB / 0.5417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.027e-05/0.1905, allocations: 36 kB / 0.6302 GB, free: 4.57 MB / 0.5417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.597e-05/0.1905, allocations: 33.98 kB / 0.6302 GB, free: 4.539 MB / 0.5417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005743/0.1911, allocations: 351.7 kB / 0.6305 GB, free: 4.191 MB / 0.5417 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 0.002891/0.194, allocations: 2.195 MB / 0.6327 GB, free: 1.949 MB / 0.5417 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003744/0.1943, allocations: 289.3 kB / 0.633 GB, free: 1.656 MB / 0.5417 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001668/0.1945, allocations: 141.9 kB / 0.6331 GB, free: 1.516 MB / 0.5417 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001163/0.1946, allocations: 24.48 kB / 0.6331 GB, free: 1.488 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.835e-05/0.1947, allocations: 45.83 kB / 0.6332 GB, free: 1.434 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=47): time 2.144e-06/0.1947, allocations: 0 / 0.6332 GB, free: 1.434 MB / 0.5417 GB Notification: Performance of matching and sorting (n=49): time 0.001984/0.1966, allocations: 1.103 MB / 0.6342 GB, free: 296 kB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.165e-05/0.1967, allocations: 55.91 kB / 0.6343 GB, free: 228 kB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004834/0.1972, allocations: 0.6322 MB / 0.6349 GB, free: 15.58 MB / 0.5573 GB Notification: Performance of collectPreVariables (initialization): time 4.354e-05/0.1972, allocations: 41.7 kB / 0.6349 GB, free: 15.53 MB / 0.5573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002528/0.1974, allocations: 0.53 MB / 0.6355 GB, free: 14.99 MB / 0.5573 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001039/0.1976, allocations: 182.4 kB / 0.6356 GB, free: 14.81 MB / 0.5573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001258/0.1977, allocations: 119.9 kB / 0.6358 GB, free: 14.69 MB / 0.5573 GB Notification: Performance of setup shared object (initialization): time 0.0001635/0.1978, allocations: 0.5586 MB / 0.6363 GB, free: 14.12 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001459/0.198, allocations: 85.25 kB / 0.6364 GB, free: 14.04 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000244/0.1982, allocations: 290.5 kB / 0.6367 GB, free: 13.69 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 0.001071/0.1993, allocations: 0.5525 MB / 0.6372 GB, free: 13.09 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.537e-06/0.1993, allocations: 4 kB / 0.6372 GB, free: 13.09 MB / 0.5573 GB Notification: Performance of matching and sorting (n=72) (initialization): time 0.0005744/0.1999, allocations: 492.2 kB / 0.6377 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 1.937e-05/0.1999, allocations: 8 kB / 0.6377 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.622e-06/0.1999, allocations: 0 / 0.6377 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001819/0.2001, allocations: 63.67 kB / 0.6377 GB, free: 12.52 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003311/0.2004, allocations: 135.8 kB / 0.6379 GB, free: 12.38 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001847/0.2023, allocations: 3.614 MB / 0.6414 GB, free: 8.52 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003029/0.2026, allocations: 27.88 kB / 0.6414 GB, free: 8.492 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.547e-05/0.2026, allocations: 20 kB / 0.6414 GB, free: 8.473 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 0.0001863/0.2028, allocations: 200.4 kB / 0.6416 GB, free: 8.266 MB / 0.5573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.637e-05/0.2029, allocations: 91.53 kB / 0.6417 GB, free: 8.176 MB / 0.5573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 7.987e-05/0.203, allocations: 95.38 kB / 0.6418 GB, free: 8.078 MB / 0.5573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.697e-06/0.203, allocations: 8 kB / 0.6418 GB, free: 8.07 MB / 0.5573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.397e-06/0.203, allocations: 192 / 0.6418 GB, free: 8.07 MB / 0.5573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004659/0.2034, allocations: 0.5892 MB / 0.6424 GB, free: 7.391 MB / 0.5573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001382/0.2048, allocations: 1.305 MB / 0.6437 GB, free: 5.984 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.569e-06/0.2048, allocations: 4 kB / 0.6437 GB, free: 5.98 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003106/0.2051, allocations: 119.9 kB / 0.6438 GB, free: 5.863 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001204/0.2053, allocations: 43.66 kB / 0.6438 GB, free: 5.816 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.865e-05/0.2053, allocations: 16 kB / 0.6438 GB, free: 5.801 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001348/0.2066, allocations: 1.866 MB / 0.6457 GB, free: 3.816 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.681e-06/0.2066, allocations: 11.88 kB / 0.6457 GB, free: 3.805 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007351/0.2074, allocations: 0.7091 MB / 0.6464 GB, free: 3.016 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001925/0.2076, allocations: 151.5 kB / 0.6465 GB, free: 2.867 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.167e-05/0.2076, allocations: 8 kB / 0.6465 GB, free: 2.859 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002912/0.2079, allocations: 27.98 kB / 0.6465 GB, free: 2.832 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.19e-05/0.208, allocations: 51.8 kB / 0.6466 GB, free: 2.781 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.986e-05/0.2081, allocations: 27.98 kB / 0.6466 GB, free: 2.754 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0003038/0.2084, allocations: 403 kB / 0.647 GB, free: 2.367 MB / 0.5573 GB Notification: Performance of sort global known variables: time 8e-08/0.2084, allocations: 3.938 kB / 0.647 GB, free: 2.363 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.0005491/0.2089, allocations: 283.9 kB / 0.6473 GB, free: 2.086 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 0.0002941/0.2092, allocations: 157.7 kB / 0.6474 GB, free: 1.922 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.0007085/0.2099, allocations: 0.6501 MB / 0.6481 GB, free: 1.238 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 5.801e-06/0.2099, allocations: 4.688 kB / 0.6481 GB, free: 1.234 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.0002691/0.2102, allocations: 342.2 kB / 0.6484 GB, free: 0.8789 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001266/0.2115, allocations: 0.5077 MB / 0.6489 GB, free: 404 kB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2775/0.4889, allocations: 1.607 MB / 0.6505 GB, free: 49.54 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003115/0.4892, allocations: 233.4 kB / 0.6507 GB, free: 49.46 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.0008262/0.49, allocations: 161.8 kB / 0.6508 GB, free: 49.45 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002095/0.4903, allocations: 68.84 kB / 0.6509 GB, free: 49.45 MB / 0.5573 GB Notification: Performance of SimCode: time 2.275e-06/0.4903, allocations: 0 / 0.6509 GB, free: 49.45 MB / 0.5573 GB Notification: Performance of Templates: time 0.02918/0.5194, allocations: 19.33 MB / 0.6698 GB, free: 47.98 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=240 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.MixingVolumes.Validation.MixingVolumeHeatReverseFlow.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 4.304390156175941]