Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.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 0.000873/0.000873, allocations: 80.94 kB / 21.55 MB, free: 2.949 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 0.0009873/0.0009873, allocations: 166.5 kB / 24.96 MB, free: 8.711 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 0.8819/0.8819, allocations: 177.1 MB / 205.4 MB, free: 4.492 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 1.842/1.842, allocations: 389.6 MB / 0.6362 GB, free: 13.4 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.HeatExchangers.CoolingTowers.Validation.MerkelNominal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal") translateModel(Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.553e-06/1.553e-06, allocations: 0 / 0.776 GB, free: 13.96 MB / 0.7448 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.525e-05/1.68e-05, allocations: 2.312 kB / 0.776 GB, free: 13.95 MB / 0.7448 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal): time 0.4277/0.4277, allocations: 154.3 MB / 0.9267 GB, free: 9.434 MB / 0.8386 GB Notification: Performance of NFInst.instExpressions: time 0.009143/0.4369, allocations: 8.888 MB / 0.9353 GB, free: 0.543 MB / 0.8386 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006289/0.4375, allocations: 39.69 kB / 0.9354 GB, free: 0.5039 MB / 0.8386 GB Notification: Performance of NFTyping.typeComponents: time 0.001485/0.439, allocations: 0.7571 MB / 0.9361 GB, free: 15.74 MB / 0.8542 GB Notification: Performance of NFTyping.typeBindings: time 0.002235/0.4412, allocations: 1.589 MB / 0.9377 GB, free: 14.14 MB / 0.8542 GB Notification: Performance of NFTyping.typeClassSections: time 0.001333/0.4425, allocations: 0.9832 MB / 0.9386 GB, free: 13.16 MB / 0.8542 GB Notification: Performance of NFFlatten.flatten: time 0.00179/0.4443, allocations: 2.401 MB / 0.941 GB, free: 10.76 MB / 0.8542 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0008355/0.4452, allocations: 0.6343 MB / 0.9416 GB, free: 10.11 MB / 0.8542 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001044/0.4462, allocations: 1.142 MB / 0.9427 GB, free: 8.98 MB / 0.8542 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005138/0.4467, allocations: 0.5686 MB / 0.9433 GB, free: 8.41 MB / 0.8542 GB Notification: Performance of NFPackage.collectConstants: time 9.484e-05/0.4468, allocations: 100 kB / 0.9434 GB, free: 8.312 MB / 0.8542 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002114/0.4489, allocations: 2.004 MB / 0.9453 GB, free: 6.305 MB / 0.8542 GB Notification: Performance of NFScalarize.scalarize: time 0.0002094/0.4491, allocations: 358.8 kB / 0.9457 GB, free: 5.953 MB / 0.8542 GB Notification: Performance of NFVerifyModel.verify: time 0.0002949/0.4494, allocations: 419 kB / 0.9461 GB, free: 5.543 MB / 0.8542 GB Notification: Performance of NFConvertDAE.convert: time 0.001773/0.4512, allocations: 2.103 MB / 0.9481 GB, free: 3.434 MB / 0.8542 GB Notification: Performance of FrontEnd - DAE generated: time 2.875e-06/0.4512, allocations: 0 / 0.9481 GB, free: 3.434 MB / 0.8542 GB Notification: Performance of FrontEnd: time 1.012e-06/0.4512, allocations: 0 / 0.9481 GB, free: 3.434 MB / 0.8542 GB Notification: Performance of Transformations before backend: time 7.794e-06/0.4512, allocations: 0 / 0.9481 GB, free: 3.434 MB / 0.8542 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.001412/0.4526, allocations: 1.558 MB / 0.9496 GB, free: 1.836 MB / 0.8542 GB Notification: Performance of prepare preOptimizeDAE: time 2.538e-05/0.4527, allocations: 11.97 kB / 0.9496 GB, free: 1.824 MB / 0.8542 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005062/0.4532, allocations: 211.7 kB / 0.9498 GB, free: 1.617 MB / 0.8542 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007795/0.4539, allocations: 0.7322 MB / 0.9506 GB, free: 0.8398 MB / 0.8542 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.528e-05/0.454, allocations: 41 kB / 0.9506 GB, free: 0.8008 MB / 0.8542 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.662e-05/0.454, allocations: 55.94 kB / 0.9507 GB, free: 0.7461 MB / 0.8542 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004348/0.4545, allocations: 496.4 kB / 0.9511 GB, free: 232 kB / 0.8542 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.46e-05/0.4545, allocations: 4.5 kB / 0.9511 GB, free: 228 kB / 0.8542 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.041e-05/0.4545, allocations: 23.94 kB / 0.9512 GB, free: 204 kB / 0.8542 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.073e-05/0.4545, allocations: 12 kB / 0.9512 GB, free: 192 kB / 0.8542 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002238/0.4548, allocations: 161.7 kB / 0.9513 GB, free: 24 kB / 0.8542 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 0.001669/0.4564, allocations: 1.577 MB / 0.9529 GB, free: 14.41 MB / 0.8698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002941/0.4567, allocations: 232.8 kB / 0.9531 GB, free: 14.18 MB / 0.8698 GB Notification: Performance of preOpt resolveLoops (simulation): time 7.658e-05/0.4568, allocations: 72.22 kB / 0.9532 GB, free: 14.1 MB / 0.8698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009128/0.4577, allocations: 0.7489 MB / 0.9539 GB, free: 13.34 MB / 0.8698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.759e-05/0.4577, allocations: 38.5 kB / 0.9539 GB, free: 13.29 MB / 0.8698 GB Notification: Performance of pre-optimization done (n=26): time 1.272e-06/0.4577, allocations: 0 / 0.9539 GB, free: 13.29 MB / 0.8698 GB Notification: Performance of matching and sorting (n=26): time 0.000902/0.4586, allocations: 449 kB / 0.9543 GB, free: 12.85 MB / 0.8698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.017e-05/0.4586, allocations: 59.34 kB / 0.9544 GB, free: 12.78 MB / 0.8698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006175/0.4593, allocations: 0.8823 MB / 0.9553 GB, free: 11.88 MB / 0.8698 GB Notification: Performance of collectPreVariables (initialization): time 2.748e-05/0.4593, allocations: 37.7 kB / 0.9553 GB, free: 11.83 MB / 0.8698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001661/0.4595, allocations: 362.3 kB / 0.9556 GB, free: 11.48 MB / 0.8698 GB Notification: Performance of collectInitialBindings (initialization): time 4.925e-05/0.4595, allocations: 103.1 kB / 0.9557 GB, free: 11.38 MB / 0.8698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000134/0.4596, allocations: 130.2 kB / 0.9559 GB, free: 11.24 MB / 0.8698 GB Notification: Performance of setup shared object (initialization): time 7.243e-05/0.4597, allocations: 329.9 kB / 0.9562 GB, free: 10.91 MB / 0.8698 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000133/0.4598, allocations: 86.28 kB / 0.9563 GB, free: 10.82 MB / 0.8698 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002485/0.4601, allocations: 452 kB / 0.9567 GB, free: 10.28 MB / 0.8698 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002742/0.4604, allocations: 271.8 kB / 0.957 GB, free: 9.988 MB / 0.8698 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.344e-06/0.4604, allocations: 0 / 0.957 GB, free: 9.988 MB / 0.8698 GB Notification: Performance of matching and sorting (n=64) (initialization): time 0.0004804/0.4609, allocations: 389.5 kB / 0.9573 GB, free: 9.59 MB / 0.8698 GB Notification: Performance of prepare postOptimizeDAE: time 1.032e-05/0.4609, allocations: 4.312 kB / 0.9573 GB, free: 9.586 MB / 0.8698 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.61e-06/0.4609, allocations: 8 kB / 0.9573 GB, free: 9.578 MB / 0.8698 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.1952/0.656, allocations: 55.82 MB / 1.012 GB, free: 1.695 MB / 0.9167 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003262/0.6564, allocations: 108.6 kB / 1.012 GB, free: 1.59 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006273/0.657, allocations: 1.101 MB / 1.013 GB, free: 448 kB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005337/0.6575, allocations: 51.66 kB / 1.013 GB, free: 396 kB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.353e-05/0.6576, allocations: 19.98 kB / 1.013 GB, free: 376 kB / 0.9167 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003172/0.6579, allocations: 175.1 kB / 1.013 GB, free: 196 kB / 0.9167 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002752/0.6582, allocations: 442.8 kB / 1.014 GB, free: 15.66 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002789/0.6584, allocations: 272.5 kB / 1.014 GB, free: 15.36 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.234e-06/0.6584, allocations: 0 / 1.014 GB, free: 15.36 MB / 0.9323 GB Notification: Performance of matching and sorting (n=64) (initialization_lambda0): time 0.0005236/0.659, allocations: 397.5 kB / 1.014 GB, free: 14.95 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 1.065e-05/0.659, allocations: 5.875 kB / 1.014 GB, free: 14.95 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.08e-06/0.659, allocations: 4.875 kB / 1.014 GB, free: 14.95 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.1979/0.8569, allocations: 55.83 MB / 1.069 GB, free: 7.047 MB / 0.9792 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003076/0.8572, allocations: 103.9 kB / 1.069 GB, free: 6.945 MB / 0.9792 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004753/0.8577, allocations: 1.093 MB / 1.07 GB, free: 5.801 MB / 0.9792 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004669/0.8582, allocations: 51.72 kB / 1.07 GB, free: 5.75 MB / 0.9792 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.792e-05/0.8582, allocations: 19.98 kB / 1.07 GB, free: 5.73 MB / 0.9792 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * 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 (57): * Single equations (assignments): 55 * 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 {(1,6), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.0001409/0.8583, allocations: 204.1 kB / 1.07 GB, free: 5.523 MB / 0.9792 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.382e-05/0.8584, allocations: 67.86 kB / 1.07 GB, free: 5.457 MB / 0.9792 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007017/0.8591, allocations: 368.7 kB / 1.071 GB, free: 5.09 MB / 0.9792 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.125e-05/0.8591, allocations: 8.75 kB / 1.071 GB, free: 5.082 MB / 0.9792 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.853e-06/0.8591, allocations: 0 / 1.071 GB, free: 5.082 MB / 0.9792 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004423/0.8596, allocations: 447.9 kB / 1.071 GB, free: 4.574 MB / 0.9792 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001097/0.8607, allocations: 0.8829 MB / 1.072 GB, free: 3.648 MB / 0.9792 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.236e-06/0.8607, allocations: 0 / 1.072 GB, free: 3.648 MB / 0.9792 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.676e-05/0.8608, allocations: 45.05 kB / 1.072 GB, free: 3.605 MB / 0.9792 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.09791/0.9587, allocations: 28.05 MB / 1.099 GB, free: 7.516 MB / 1.01 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.047e-05/0.9588, allocations: 11.92 kB / 1.099 GB, free: 7.508 MB / 1.01 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003473/0.9591, allocations: 0.5757 MB / 1.1 GB, free: 6.906 MB / 1.01 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.745e-06/0.9591, allocations: 3.984 kB / 1.1 GB, free: 6.902 MB / 1.01 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000815/0.9599, allocations: 0.4924 MB / 1.1 GB, free: 6.375 MB / 1.01 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002241/0.9601, allocations: 115.2 kB / 1.101 GB, free: 6.262 MB / 1.01 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.04e-05/0.9602, allocations: 8 kB / 1.101 GB, free: 6.254 MB / 1.01 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002095/0.9604, allocations: 16.48 kB / 1.101 GB, free: 6.238 MB / 1.01 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 2.905e-05/0.9604, allocations: 23.94 kB / 1.101 GB, free: 6.215 MB / 1.01 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.616e-05/0.9605, allocations: 15.98 kB / 1.101 GB, free: 6.199 MB / 1.01 GB Notification: Performance of sorting global known variables: time 0.0003781/0.9609, allocations: 424.2 kB / 1.101 GB, free: 5.773 MB / 1.01 GB Notification: Performance of sort global known variables: time 8e-08/0.9609, allocations: 0 / 1.101 GB, free: 5.773 MB / 1.01 GB Notification: Performance of remove unused functions: time 0.001088/0.9619, allocations: 0.6703 MB / 1.102 GB, free: 5.102 MB / 1.01 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 1 (tow.vol.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 (22): * Single equations (assignments): 18 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * 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 {(1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007151/0.9627, allocations: 0.5221 MB / 1.102 GB, free: 4.57 MB / 1.01 GB Notification: Performance of simCode: created initialization part: time 0.0006634/0.9633, allocations: 455.7 kB / 1.103 GB, free: 4.129 MB / 1.01 GB Notification: Performance of simCode: created event and clocks part: time 1.318e-05/0.9633, allocations: 12 kB / 1.103 GB, free: 4.117 MB / 1.01 GB Notification: Performance of simCode: created simulation system equations: time 0.000116/0.9634, allocations: 105.4 kB / 1.103 GB, free: 4.012 MB / 1.01 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001011/0.9645, allocations: 0.5159 MB / 1.103 GB, free: 3.52 MB / 1.01 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001666/0.9661, allocations: 1.445 MB / 1.105 GB, free: 2.023 MB / 1.01 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001249/0.9663, allocations: 199.5 kB / 1.105 GB, free: 1.805 MB / 1.01 GB Notification: Performance of simCode: alias equations: time 0.0003824/0.9666, allocations: 172.8 kB / 1.105 GB, free: 1.637 MB / 1.01 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006365/0.9673, allocations: 402.9 kB / 1.105 GB, free: 1.238 MB / 1.01 GB Notification: Performance of SimCode: time 7.82e-07/0.9673, allocations: 0 / 1.105 GB, free: 1.238 MB / 1.01 GB Notification: Performance of Templates: time 0.02775/0.995, allocations: 29.92 MB / 1.135 GB, free: 3.93 MB / 1.042 GB " [Timeout remaining time 299] make -j1 -f Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.makefile [Timeout 300] (rm -f Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.pipe ; mkfifo Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.pipe >> ../files/Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.sim & ./Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal -abortSlowSimulation -alarm=240 -lv LOG_STATS > Buildings_13_Buildings.Fluid.HeatExchangers.CoolingTowers.Validation.MerkelNominal.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 6.079477841965854]