Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "[:1:22-1:33:writable] Warning: Modelica only supports 32-bit signed integers! Transforming: 13743895347 into a real Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0004495/0.0004495, allocations: 0 / 0, free: 0 / 0 " [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 0.0002305/0.0002305, allocations: 0 / 0, free: 0 / 0 " [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 0.5226/0.5226, allocations: 0 / 0, free: 0 / 0 " [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 0.6085/0.6085, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 179] 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: simulate(Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer,startTime=0,stopTime=172800,tolerance=1e-06,numberOfIntervals=2500,outputFormat="empty",variableFilter="",fileNamePrefix="Buildings_13_Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer",simflags="-abortSlowSimulation -alarm=240 -lv LOG_STATS") simulate(Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer,startTime=0,stopTime=172800,tolerance=1e-06,numberOfIntervals=2500,outputFormat="empty",variableFilter="",fileNamePrefix="Buildings_13_Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer",simflags="-abortSlowSimulation -alarm=240 -lv LOG_STATS") [Timeout 540] "Notification: Performance of FrontEnd - loaded program: time 2.945e-06/2.945e-06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - Absyn->SCode: time 2.355e-05/2.65e-05, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instantiate(Buildings.Air.Systems.SingleZone.VAV.BaseClasses.Validation.ControllerChillerDXHeatingEconomizer): time 0.007701/0.007727, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instExpressions: time 0.02364/0.03137, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.updateImplicitVariability: time 0.001323/0.03269, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeComponents: time 0.0007239/0.03341, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeBindings: time 0.0009428/0.03436, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeClassSections: time 0.001604/0.03596, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.flatten: time 0.001841/0.0378, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.resolveConnections: time 0.0008482/0.03865, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFEvalConstants.evaluate: time 0.002807/0.04146, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFSimplifyModel.simplify: time 0.0005738/0.04203, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFPackage.collectConstants: time 0.0001208/0.04215, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.collectFunctions: time 0.0002878/0.04244, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFScalarize.scalarize: time 0.0003087/0.04275, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFVerifyModel.verify: time 0.0003463/0.04309, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFConvertDAE.convert: time 0.001529/0.04462, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - DAE generated: time 0.0001154/0.04474, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd: time 2.034e-06/0.04474, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Transformations before backend: time 1.354e-05/0.04476, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 253 * Number of variables: 253 Notification: Performance of Generate backend data structure: time 0.002103/0.04686, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare preOptimizeDAE: time 9.02e-05/0.04695, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005352/0.04748, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009974/0.04848, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.002e-05/0.04856, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001016/0.04866, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009658/0.04963, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt findStateOrder (simulation): time 1.78e-05/0.04965, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.728e-05/0.04971, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.346e-05/0.04973, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004298/0.05016, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.007873/0.05803, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt comSubExp (simulation): time 0.0006008/0.05863, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt resolveLoops (simulation): time 0.0002181/0.05885, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evalFunc (simulation): time 3.035e-05/0.05888, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004487/0.05933, allocations: 0 / 0, free: 0 / 0 Notification: Performance of pre-optimization done (n=96): time 5.68e-06/0.05933, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=96): time 0.0006902/0.06002, allocations: 0 / 0, free: 0 / 0 Notification: Performance of inlineWhenForInitialization (initialization): time 6.382e-05/0.06009, allocations: 0 / 0, free: 0 / 0 Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00079/0.06088, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectPreVariables (initialization): time 0.0001134/0.06099, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialEqns (initialization): time 0.000216/0.06121, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialBindings (initialization): time 0.0001413/0.06135, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002127/0.06156, allocations: 0 / 0, free: 0 / 0 Notification: Performance of setup shared object (initialization): time 3.416e-05/0.06159, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001711/0.06177, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002456/0.06201, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization): time 0.0003768/0.06239, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.141e-06/0.06239, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=159) (initialization): time 0.000648/0.06304, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 1.545e-05/0.06306, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.215e-05/0.06307, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 2.387e-05/0.06309, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003946/0.06349, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.41e-05/0.0635, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002566/0.06376, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.471e-05/0.06381, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003534/0.06417, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002142/0.06438, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003613/0.06474, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.55e-06/0.06475, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=159) (initialization_lambda0): time 0.0005729/0.06532, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 1.216e-05/0.06533, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.606e-06/0.06534, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 9.438e-06/0.06535, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003712/0.06572, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.321e-05/0.06574, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002466/0.06598, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.665e-05/0.06603, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * Number of states: 0 () * Number of discrete variables: 70 ($PRE.TSetRooCoo.tab.nextTimeEvent,$whenCondition8,$PRE.TSetRooHea.tab.nextTimeEvent,$whenCondition7,con.conSup.conHeaCoi.I.trigger_internal,con.conSup.conFan.I.trigger_internal,con.conEco.con.I.trigger_internal,con.conCooVal.I.trigger_internal,occSch.tNext,$PRE.occSch.tNext,occSch.tNonOcc,$PRE.occSch.tNonOcc,occSch.tOcc,$PRE.occSch.tOcc,occSch.occupied,$PRE.occSch.occupied,TSetRooCoo.tab.nextTimeEventScaled,$PRE.TSetRooCoo.tab.nextTimeEventScaled,TSetRooCoo.tab.nextTimeEvent,TSetRooHea.tab.nextTimeEventScaled,$PRE.TSetRooHea.tab.nextTimeEventScaled,TSetRooHea.tab.nextTimeEvent,con.heaOnTRoo.greHys.y,$PRE.con.heaOnTRoo.greHys.y,con.chiOnTRoo.greHys.y,$PRE.con.chiOnTRoo.greHys.y,con.orFan.uTemp[2],con.orFan.y,con.conEco.pre1.u,$PRE.con.conEco.pre1.u,con.conEco.hysTMix.y,$PRE.con.conEco.hysTMix.y,con.conEco.truFalHolTMix.entryTimeFalse,$PRE.con.conEco.truFalHolTMix.entryTimeFalse,con.conEco.truFalHolTMix.entryTimeTrue,$PRE.con.conEco.truFalHolTMix.entryTimeTrue,con.conEco.truFalHolTMix.not_y,$PRE.con.conEco.truFalHolTMix.not_y,con.conEco.truFalHolTMix.not_u,$PRE.con.conEco.truFalHolTMix.not_u,con.conEco.truFalHolTMix.y,$PRE.con.conEco.truFalHolTMix.y,con.conEco.truFalHolTMix.u,$PRE.con.conEco.truFalHolTMix.u,con.conEco.truFalHolCooPot.entryTimeFalse,$PRE.con.conEco.truFalHolCooPot.entryTimeFalse,con.conEco.truFalHolCooPot.entryTimeTrue,$PRE.con.conEco.truFalHolCooPot.entryTimeTrue,con.conEco.truFalHolCooPot.not_y,$PRE.con.conEco.truFalHolCooPot.not_y,con.conEco.truFalHolCooPot.not_u,$PRE.con.conEco.truFalHolCooPot.not_u,con.conEco.truFalHolCooPot.y,$PRE.con.conEco.truFalHolCooPot.y,con.conEco.truFalHolCooPot.u,$PRE.con.conEco.truFalHolCooPot.u,con.conEco.hysCooPot.y,$PRE.con.conEco.hysCooPot.y,con.conEco.not1.y,con.conEco.yCoiSta,con.conEco.hysChiPla.y,$PRE.con.conEco.hysChiPla.y,con.chiOn,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition9) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (156): * Single equations (assignments): 155 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * 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 0.0002999/0.06633, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt lateInlineFunction (simulation): time 9.181e-05/0.06642, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005425/0.06696, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.412e-06/0.06697, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt constantLinearSystem (simulation): time 6.883e-06/0.06698, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.62e-06/0.06698, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009995/0.06798, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.386e-06/0.06799, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002641/0.06825, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (simulation): time 4.859e-06/0.06825, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.724e-05/0.0683, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.831e-06/0.06831, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.233e-06/0.06831, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008726/0.06918, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeConstants (simulation): time 0.0002184/0.0694, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000245/0.06964, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002201/0.06986, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002148/0.07008, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.353e-05/0.07013, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sorting global known variables: time 0.0003226/0.07046, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sort global known variables: time 2.275e-05/0.07048, allocations: 0 / 0, free: 0 / 0 Notification: Performance of remove unused functions: time 0.0006995/0.07118, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 4 (con.conSup.conHeaCoi.I.y,con.conSup.conFan.I.y,con.conEco.con.I.y,con.conCooVal.I.y) * Number of discrete variables: 40 ($whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,con.chiOn,con.conEco.hysChiPla.y,con.conEco.yCoiSta,con.conEco.not1.y,con.conEco.hysCooPot.y,con.conEco.truFalHolCooPot.u,con.conEco.truFalHolCooPot.y,con.conEco.truFalHolCooPot.not_u,con.conEco.truFalHolCooPot.not_y,con.conEco.truFalHolCooPot.entryTimeTrue,con.conEco.truFalHolCooPot.entryTimeFalse,con.conEco.truFalHolTMix.u,con.conEco.truFalHolTMix.y,con.conEco.truFalHolTMix.not_u,con.conEco.truFalHolTMix.not_y,con.conEco.truFalHolTMix.entryTimeTrue,con.conEco.truFalHolTMix.entryTimeFalse,con.conEco.hysTMix.y,con.conEco.pre1.u,con.orFan.y,con.orFan.uTemp[2],con.chiOnTRoo.greHys.y,con.heaOnTRoo.greHys.y,TSetRooHea.tab.nextTimeEvent,TSetRooHea.tab.nextTimeEventScaled,TSetRooCoo.tab.nextTimeEvent,TSetRooCoo.tab.nextTimeEventScaled,occSch.occupied,occSch.tOcc,occSch.tNonOcc,occSch.tNext) * Number of discrete states: 23 (occSch.tNext,TSetRooCoo.tab.nextTimeEvent,TSetRooHea.tab.nextTimeEvent,con.conEco.truFalHolTMix.entryTimeFalse,con.conEco.truFalHolTMix.entryTimeTrue,con.conEco.truFalHolCooPot.entryTimeFalse,con.conEco.truFalHolCooPot.entryTimeTrue,con.conEco.hysCooPot.y,con.conEco.truFalHolCooPot.not_u,con.conEco.truFalHolCooPot.u,con.conEco.hysTMix.y,con.conEco.truFalHolTMix.not_u,con.conEco.truFalHolTMix.u,con.conEco.pre1.u,con.conEco.hysChiPla.y,TSetRooCoo.tab.nextTimeEventScaled,con.chiOnTRoo.greHys.y,TSetRooHea.tab.nextTimeEventScaled,con.heaOnTRoo.greHys.y,con.conEco.truFalHolTMix.y,con.conEco.truFalHolTMix.not_y,con.conEco.truFalHolCooPot.y,con.conEco.truFalHolCooPot.not_y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (95): * Single equations (assignments): 84 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * 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 0.0008344/0.07201, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created initialization part: time 0.0008289/0.07284, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created event and clocks part: time 1.653e-05/0.07286, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created simulation system equations: time 0.0002114/0.07307, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0008949/0.07396, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002403/0.07637, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001839/0.07655, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: alias equations: time 0.0004995/0.07705, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004404/0.07749, allocations: 0 / 0, free: 0 / 0 Notification: Performance of SimCode: time 3.059e-05/0.07752, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Templates: time 0.05211/0.1296, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 540] [Calling sys.exit(0), Time elapsed: 2.3167266752570868]