Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.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 0.0009825/0.0009825, allocations: 93.06 kB / 19.65 MB, free: 280 kB / 13.93 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 0.001686/0.001686, allocations: 165 kB / 23.02 MB, free: 1.551 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 1.04/1.04, allocations: 177.1 MB / 203.4 MB, free: 5.625 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo): time 0.001655/0.001655, allocations: 233.9 kB / 260.2 MB, free: 12.82 MB / 250.7 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo): time 0.7409/0.7409, allocations: 138.4 MB / 455.2 MB, free: 1.469 MB / 362.7 MB " [Timeout remaining time 179] Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/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(BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder") translateModel(BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.813e-06/1.813e-06, allocations: 0 / 0.5551 GB, free: 0.5117 MB / 474.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.277e-05/2.459e-05, allocations: 6.25 kB / 0.5551 GB, free: 0.5039 MB / 474.7 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder): time 0.002971/0.002995, allocations: 2.574 MB / 0.5576 GB, free: 13.91 MB / 490.7 MB Notification: Performance of NFInst.instExpressions: time 0.001359/0.004354, allocations: 0.9349 MB / 0.5585 GB, free: 12.96 MB / 490.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001886/0.004543, allocations: 11.94 kB / 0.5585 GB, free: 12.95 MB / 490.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0001805/0.004723, allocations: 63.39 kB / 0.5586 GB, free: 12.89 MB / 490.7 MB Notification: Performance of NFTyping.typeBindings: time 0.0001297/0.004853, allocations: 71.33 kB / 0.5587 GB, free: 12.82 MB / 490.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.0004416/0.005294, allocations: 247.6 kB / 0.5589 GB, free: 12.58 MB / 490.7 MB Notification: Performance of NFFlatten.flatten: time 0.0003564/0.005651, allocations: 459.5 kB / 0.5593 GB, free: 12.13 MB / 490.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.000223/0.005874, allocations: 141.7 kB / 0.5595 GB, free: 11.99 MB / 490.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002026/0.006076, allocations: 227.5 kB / 0.5597 GB, free: 11.77 MB / 490.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0001211/0.006197, allocations: 107.6 kB / 0.5598 GB, free: 11.66 MB / 490.7 MB Notification: Performance of NFPackage.collectConstants: time 4.631e-05/0.006244, allocations: 52 kB / 0.5598 GB, free: 11.61 MB / 490.7 MB Notification: Performance of NFFlatten.collectFunctions: time 3.667e-05/0.00628, allocations: 48 kB / 0.5599 GB, free: 11.56 MB / 490.7 MB Notification: Performance of NFScalarize.scalarize: time 4.901e-05/0.006329, allocations: 87.69 kB / 0.56 GB, free: 11.48 MB / 490.7 MB Notification: Performance of NFVerifyModel.verify: time 7.545e-05/0.006405, allocations: 111.7 kB / 0.5601 GB, free: 11.37 MB / 490.7 MB Notification: Performance of NFConvertDAE.convert: time 0.00029/0.006695, allocations: 298.9 kB / 0.5604 GB, free: 11.07 MB / 490.7 MB Notification: Performance of FrontEnd - DAE generated: time 2.335e-06/0.006697, allocations: 4 kB / 0.5604 GB, free: 11.07 MB / 490.7 MB Notification: Performance of FrontEnd: time 1.031e-06/0.006698, allocations: 0 / 0.5604 GB, free: 11.07 MB / 490.7 MB Notification: Performance of Transformations before backend: time 5.07e-06/0.006703, allocations: 0 / 0.5604 GB, free: 11.07 MB / 490.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 66 * Number of variables: 66 Notification: Performance of Generate backend data structure: time 0.0006576/0.007361, allocations: 0.6712 MB / 0.561 GB, free: 10.36 MB / 490.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.698e-05/0.007398, allocations: 8.75 kB / 0.561 GB, free: 10.36 MB / 490.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.305e-05/0.007481, allocations: 68.66 kB / 0.5611 GB, free: 10.29 MB / 490.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003309/0.007812, allocations: 352.3 kB / 0.5614 GB, free: 9.914 MB / 490.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.903e-05/0.007841, allocations: 21.03 kB / 0.5615 GB, free: 9.895 MB / 490.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 4.336e-05/0.007884, allocations: 32.38 kB / 0.5615 GB, free: 9.863 MB / 490.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006201/0.008504, allocations: 318.4 kB / 0.5618 GB, free: 9.512 MB / 490.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 9.588e-06/0.008514, allocations: 192 / 0.5618 GB, free: 9.512 MB / 490.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.059e-05/0.008534, allocations: 8.375 kB / 0.5618 GB, free: 9.504 MB / 490.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.179e-05/0.008546, allocations: 15.94 kB / 0.5618 GB, free: 9.488 MB / 490.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001698/0.008716, allocations: 87.81 kB / 0.5619 GB, free: 9.398 MB / 490.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0009465/0.009662, allocations: 1.068 MB / 0.5629 GB, free: 8.285 MB / 490.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0002129/0.009875, allocations: 115.3 kB / 0.563 GB, free: 8.16 MB / 490.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 6.537e-05/0.009941, allocations: 39.66 kB / 0.5631 GB, free: 8.117 MB / 490.7 MB Notification: Performance of preOpt evalFunc (simulation): time 2.452e-05/0.009965, allocations: 11.94 kB / 0.5631 GB, free: 8.105 MB / 490.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.307e-05/0.009988, allocations: 41.33 kB / 0.5631 GB, free: 8.055 MB / 490.7 MB Notification: Performance of pre-optimization done (n=16): time 1.423e-06/0.00999, allocations: 4 kB / 0.5631 GB, free: 8.051 MB / 490.7 MB Notification: Performance of matching and sorting (n=16): time 0.0002919/0.01028, allocations: 145.3 kB / 0.5633 GB, free: 7.906 MB / 490.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.182e-05/0.01032, allocations: 106.8 kB / 0.5634 GB, free: 7.777 MB / 490.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001948/0.01052, allocations: 306.2 kB / 0.5637 GB, free: 7.465 MB / 490.7 MB Notification: Performance of collectPreVariables (initialization): time 1.782e-05/0.01054, allocations: 33.7 kB / 0.5637 GB, free: 7.426 MB / 490.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001115/0.01065, allocations: 247.3 kB / 0.5639 GB, free: 7.176 MB / 490.7 MB Notification: Performance of collectInitialBindings (initialization): time 3.167e-05/0.01068, allocations: 51.58 kB / 0.564 GB, free: 7.125 MB / 490.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 5.63e-05/0.01074, allocations: 51.31 kB / 0.564 GB, free: 7.066 MB / 490.7 MB Notification: Performance of setup shared object (initialization): time 0.0001214/0.01086, allocations: 0.5157 MB / 0.5645 GB, free: 6.539 MB / 490.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 6.341e-05/0.01092, allocations: 39.61 kB / 0.5646 GB, free: 6.496 MB / 490.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001016/0.01102, allocations: 132.2 kB / 0.5647 GB, free: 6.336 MB / 490.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001326/0.01115, allocations: 94.89 kB / 0.5648 GB, free: 6.23 MB / 490.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.405e-06/0.01116, allocations: 0 / 0.5648 GB, free: 6.23 MB / 490.7 MB Notification: Performance of matching and sorting (n=20) (initialization): time 0.0001932/0.01135, allocations: 148.4 kB / 0.5649 GB, free: 6.082 MB / 490.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.231e-05/0.01136, allocations: 4 kB / 0.5649 GB, free: 6.078 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.031e-06/0.01137, allocations: 4 kB / 0.5649 GB, free: 6.074 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.632e-05/0.01138, allocations: 4.094 kB / 0.5649 GB, free: 6.07 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001176/0.0115, allocations: 31.92 kB / 0.565 GB, free: 6.039 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.42e-06/0.01151, allocations: 0 / 0.565 GB, free: 6.039 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.428e-05/0.01157, allocations: 19.94 kB / 0.565 GB, free: 6.02 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.027e-05/0.01158, allocations: 4 kB / 0.565 GB, free: 6.016 MB / 490.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001013/0.01168, allocations: 150.9 kB / 0.5651 GB, free: 5.863 MB / 490.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 8.358e-05/0.01177, allocations: 125.8 kB / 0.5653 GB, free: 5.707 MB / 490.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0001092/0.01188, allocations: 86.89 kB / 0.5653 GB, free: 5.609 MB / 490.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.693e-06/0.01188, allocations: 3.938 kB / 0.5654 GB, free: 5.605 MB / 490.7 MB Notification: Performance of matching and sorting (n=20) (initialization_lambda0): time 0.000173/0.01205, allocations: 148.3 kB / 0.5655 GB, free: 5.457 MB / 490.7 MB Notification: Performance of prepare postOptimizeDAE: time 4.939e-06/0.01206, allocations: 4 kB / 0.5655 GB, free: 5.453 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.745e-06/0.01206, allocations: 4 kB / 0.5655 GB, free: 5.449 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.495e-06/0.01206, allocations: 0 / 0.5655 GB, free: 5.449 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 6.911e-05/0.01213, allocations: 27.92 kB / 0.5655 GB, free: 5.422 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.914e-06/0.01213, allocations: 4 kB / 0.5655 GB, free: 5.418 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.101e-05/0.01219, allocations: 23.88 kB / 0.5656 GB, free: 5.395 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.68e-06/0.0122, allocations: 4 kB / 0.5656 GB, free: 5.391 MB / 490.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 3 (expMod.oveWriAct_activate,expMod.oveWriSet_activate,expMod.mod.conPI.I.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (20): * Single equations (assignments): 20 * 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 9.566e-05/0.01229, allocations: 288 kB / 0.5658 GB, free: 5.102 MB / 490.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.809e-05/0.01233, allocations: 31.81 kB / 0.5659 GB, free: 5.07 MB / 490.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.3e-05/0.01239, allocations: 34.19 kB / 0.5659 GB, free: 5.039 MB / 490.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.144e-06/0.01239, allocations: 0 / 0.5659 GB, free: 5.039 MB / 490.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.009e-06/0.01239, allocations: 0 / 0.5659 GB, free: 5.039 MB / 490.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.216e-06/0.0124, allocations: 0 / 0.5659 GB, free: 5.039 MB / 490.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002285/0.01262, allocations: 276.3 kB / 0.5662 GB, free: 4.734 MB / 490.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.002e-06/0.01263, allocations: 4 kB / 0.5662 GB, free: 4.73 MB / 490.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 8.741e-05/0.01271, allocations: 23.98 kB / 0.5662 GB, free: 4.707 MB / 490.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 1.552e-06/0.01271, allocations: 4 kB / 0.5662 GB, free: 4.703 MB / 490.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.299e-05/0.01273, allocations: 0 / 0.5662 GB, free: 4.703 MB / 490.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.062e-06/0.01273, allocations: 4 kB / 0.5662 GB, free: 4.699 MB / 490.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.02e-07/0.01273, allocations: 3.938 kB / 0.5662 GB, free: 4.695 MB / 490.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002996/0.01303, allocations: 323.6 kB / 0.5665 GB, free: 4.359 MB / 490.7 MB Notification: Performance of postOpt removeConstants (simulation): time 6.262e-05/0.01309, allocations: 51.78 kB / 0.5666 GB, free: 4.309 MB / 490.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.167e-05/0.01311, allocations: 4 kB / 0.5666 GB, free: 4.305 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 6.768e-05/0.01318, allocations: 4 kB / 0.5666 GB, free: 4.301 MB / 490.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.413e-05/0.01323, allocations: 15.97 kB / 0.5666 GB, free: 4.285 MB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.512e-06/0.01323, allocations: 4 kB / 0.5666 GB, free: 4.281 MB / 490.7 MB Notification: Performance of sorting global known variables: time 0.0001192/0.01335, allocations: 211 kB / 0.5668 GB, free: 4.074 MB / 490.7 MB Notification: Performance of sort global known variables: time 5e-08/0.01335, allocations: 0 / 0.5668 GB, free: 4.074 MB / 490.7 MB Notification: Performance of remove unused functions: time 0.0002522/0.0136, allocations: 107.6 kB / 0.5669 GB, free: 3.969 MB / 490.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (expMod.mod.conPI.I.y,expMod.mod.firOrd.y) * Number of discrete variables: 2 (expMod.oveWriSet_activate,expMod.oveWriAct_activate) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (16): * Single equations (assignments): 16 * 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 Backend phase and start with SimCode phase: time 9.138e-05/0.01369, allocations: 103.2 kB / 0.567 GB, free: 3.855 MB / 490.7 MB Notification: Performance of simCode: created initialization part: time 0.0002551/0.01395, allocations: 139.2 kB / 0.5671 GB, free: 3.711 MB / 490.7 MB Notification: Performance of simCode: created event and clocks part: time 1.633e-06/0.01395, allocations: 0 / 0.5671 GB, free: 3.711 MB / 490.7 MB Notification: Performance of simCode: created simulation system equations: time 6.973e-05/0.01402, allocations: 59.59 kB / 0.5672 GB, free: 3.648 MB / 490.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003278/0.01435, allocations: 89.16 kB / 0.5673 GB, free: 3.57 MB / 490.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0006841/0.01503, allocations: 0.5002 MB / 0.5677 GB, free: 3.039 MB / 490.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 5.606e-05/0.01509, allocations: 88.3 kB / 0.5678 GB, free: 2.934 MB / 490.7 MB Notification: Performance of simCode: alias equations: time 7.485e-05/0.01516, allocations: 21.94 kB / 0.5679 GB, free: 2.914 MB / 490.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 5.345e-05/0.01522, allocations: 24.48 kB / 0.5679 GB, free: 2.891 MB / 490.7 MB Notification: Performance of SimCode: time 6.21e-07/0.01522, allocations: 0 / 0.5679 GB, free: 2.891 MB / 490.7 MB Notification: Performance of Templates: time 0.005174/0.02039, allocations: 3.006 MB / 0.5708 GB, free: 15.94 MB / 0.4948 GB " [Timeout remaining time 660] make -j1 -f BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.makefile [Timeout 660] (rm -f BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; mkfifo BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe >> ../files/BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.sim & ./BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder -abortSlowSimulation -alarm=240 -lv LOG_STATS > BuildingSystems_BuildingSystems.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 3.974408457055688]