Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001555/0.001555, allocations: 116.1 kB / 17.08 MB, free: 5.977 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001635/0.001635, allocations: 193.2 kB / 20.03 MB, free: 3.047 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.411/1.411, allocations: 222.9 MB / 245.7 MB, free: 4.211 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.918/2.918, allocations: 489.3 MB / 0.7687 GB, free: 3.961 MB / 0.6075 GB " [Timeout remaining time 176] Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11,tolerance=1e-07,outputFormat="mat",numberOfIntervals=86400,variableFilter="time|mean.y|reference.y.2.|assEqu.diff|assEqu.threShold|assEqu.satisfied",fileNamePrefix="Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11") translateModel(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11,tolerance=1e-07,outputFormat="mat",numberOfIntervals=86400,variableFilter="time|mean.y|reference.y.2.|assEqu.diff|assEqu.threShold|assEqu.satisfied",fileNamePrefix="Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.001933/0.001933, allocations: 71.88 kB / 1.103 GB, free: 0.7969 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8549/0.8568, allocations: 163.8 MB / 1.263 GB, free: 7.988 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11): time 0.1882/1.045, allocations: 158.3 MB / 1.417 GB, free: 2.809 MB / 1.107 GB Notification: Performance of NFInst.instExpressions: time 0.02893/1.074, allocations: 22.26 MB / 1.439 GB, free: 0.5625 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002555/1.077, allocations: 68.03 kB / 1.439 GB, free: 0.5391 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.002546/1.079, allocations: 1.976 MB / 1.441 GB, free: 15.53 MB / 1.139 GB Notification: Performance of NFTyping.typeBindings: time 0.00238/1.082, allocations: 1.32 MB / 1.442 GB, free: 14.75 MB / 1.139 GB Notification: Performance of NFTyping.typeClassSections: time 0.001795/1.083, allocations: 0.6871 MB / 1.443 GB, free: 14.21 MB / 1.139 GB Notification: Performance of NFFlatten.flatten: time 0.002523/1.086, allocations: 1.961 MB / 1.445 GB, free: 13.1 MB / 1.139 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00166/1.088, allocations: 1.152 MB / 1.446 GB, free: 12.27 MB / 1.139 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001356/1.089, allocations: 0.8917 MB / 1.447 GB, free: 11.38 MB / 1.139 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001684/1.091, allocations: 1.44 MB / 1.448 GB, free: 9.934 MB / 1.139 GB Notification: Performance of NFPackage.collectConstants: time 0.000201/1.091, allocations: 108 kB / 1.448 GB, free: 9.828 MB / 1.139 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0003973/1.091, allocations: 164 kB / 1.448 GB, free: 9.668 MB / 1.139 GB Notification: Performance of NFScalarize.scalarize: time 0.000457/1.092, allocations: 0.5194 MB / 1.449 GB, free: 9.148 MB / 1.139 GB Notification: Performance of NFVerifyModel.verify: time 0.0007563/1.093, allocations: 0.8147 MB / 1.45 GB, free: 8.328 MB / 1.139 GB Notification: Performance of NFConvertDAE.convert: time 0.002236/1.095, allocations: 1.994 MB / 1.452 GB, free: 6.328 MB / 1.139 GB Notification: Performance of FrontEnd - DAE generated: time 5.631e-06/1.095, allocations: 0 / 1.452 GB, free: 6.328 MB / 1.139 GB Notification: Performance of FrontEnd: time 1.413e-06/1.095, allocations: 0 / 1.452 GB, free: 6.328 MB / 1.139 GB Notification: Performance of Transformations before backend: time 3.721e-05/1.095, allocations: 0 / 1.452 GB, free: 6.328 MB / 1.139 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 196 * Number of variables: 196 Notification: Performance of Generate backend data structure: time 0.003691/1.099, allocations: 2.45 MB / 1.454 GB, free: 3.816 MB / 1.139 GB Notification: Performance of prepare preOptimizeDAE: time 3.985e-05/1.099, allocations: 16.02 kB / 1.454 GB, free: 3.801 MB / 1.139 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000375/1.099, allocations: 259.2 kB / 1.454 GB, free: 3.547 MB / 1.139 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001507/1.101, allocations: 1.084 MB / 1.455 GB, free: 2.398 MB / 1.139 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001553/1.101, allocations: 99.62 kB / 1.456 GB, free: 2.293 MB / 1.139 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001277/1.101, allocations: 91.98 kB / 1.456 GB, free: 2.203 MB / 1.139 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001524/1.102, allocations: 0.8612 MB / 1.456 GB, free: 1.312 MB / 1.139 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.877e-05/1.102, allocations: 12 kB / 1.456 GB, free: 1.301 MB / 1.139 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.318e-05/1.102, allocations: 32 kB / 1.457 GB, free: 1.27 MB / 1.139 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.8e-05/1.103, allocations: 20 kB / 1.457 GB, free: 1.25 MB / 1.139 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001368/1.104, allocations: 0.6441 MB / 1.457 GB, free: 0.6055 MB / 1.139 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 0.005702/1.11, allocations: 4.162 MB / 1.461 GB, free: 12.13 MB / 1.154 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001492/1.111, allocations: 0.7063 MB / 1.462 GB, free: 11.41 MB / 1.154 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008336/1.112, allocations: 415.2 kB / 1.462 GB, free: 11.01 MB / 1.154 GB Notification: Performance of preOpt evalFunc (simulation): time 5.719e-05/1.112, allocations: 12.66 kB / 1.462 GB, free: 11 MB / 1.154 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0008459/1.113, allocations: 428.2 kB / 1.463 GB, free: 10.56 MB / 1.154 GB Notification: Performance of pre-optimization done (n=79): time 2.925e-06/1.113, allocations: 0 / 1.463 GB, free: 10.56 MB / 1.154 GB Notification: Performance of matching and sorting (n=79): time 0.006263/1.119, allocations: 2.127 MB / 1.465 GB, free: 8.387 MB / 1.154 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.673e-05/1.119, allocations: 89.77 kB / 1.465 GB, free: 8.277 MB / 1.154 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003689/1.123, allocations: 3.196 MB / 1.468 GB, free: 5.055 MB / 1.154 GB Notification: Performance of collectPreVariables (initialization): time 0.0001423/1.123, allocations: 49.69 kB / 1.468 GB, free: 5 MB / 1.154 GB Notification: Performance of collectInitialEqns (initialization): time 0.001058/1.124, allocations: 0.9605 MB / 1.469 GB, free: 4.031 MB / 1.154 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003215/1.124, allocations: 269.8 kB / 1.469 GB, free: 3.766 MB / 1.154 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002757/1.125, allocations: 154.7 kB / 1.469 GB, free: 3.609 MB / 1.154 GB Notification: Performance of setup shared object (initialization): time 0.0002122/1.125, allocations: 341.9 kB / 1.47 GB, free: 3.27 MB / 1.154 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000744/1.126, allocations: 309.8 kB / 1.47 GB, free: 2.965 MB / 1.154 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000863/1.127, allocations: 469.3 kB / 1.47 GB, free: 2.457 MB / 1.154 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001434/1.128, allocations: 0.742 MB / 1.471 GB, free: 1.672 MB / 1.154 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.84e-06/1.128, allocations: 0 / 1.471 GB, free: 1.672 MB / 1.154 GB Notification: Performance of matching and sorting (n=110) (initialization): time 0.002696/1.131, allocations: 1.255 MB / 1.472 GB, free: 416 kB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 2.273e-05/1.131, allocations: 4 kB / 1.472 GB, free: 412 kB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.13e-05/1.131, allocations: 4 kB / 1.472 GB, free: 408 kB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001035/1.132, allocations: 328 kB / 1.473 GB, free: 80 kB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005045/1.132, allocations: 135.8 kB / 1.473 GB, free: 15.95 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006229/1.139, allocations: 4.06 MB / 1.477 GB, free: 11.75 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007221/1.139, allocations: 115.3 kB / 1.477 GB, free: 11.64 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.13e-05/1.139, allocations: 28 kB / 1.477 GB, free: 11.61 MB / 1.17 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 34 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition7,$PRE.intGai.nextTimeEvent,$whenCondition6,$PRE.reference.nextTimeEvent,$whenCondition5,$PRE.setTemp.nextTimeEvent,$whenCondition4,$whenCondition2,cha.u,$PRE.cha.u,thr.y,timer.entryTime,$PRE.timer.entryTime,not1.y,mean.y_last,$PRE.mean.y_last,assEqu.satisfied,$PRE.assEqu.satisfied,hysteresis.y,$PRE.hysteresis.y,setTemp.nextTimeEventScaled,$PRE.setTemp.nextTimeEventScaled,setTemp.nextTimeEvent,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,reference.nextTimeEvent,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent,$whenCondition1,$whenCondition3,conHeaCoo.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (78): * Single equations (assignments): 77 * 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 {(2,31)} Notification: Performance of prepare postOptimizeDAE: time 0.0008534/1.14, allocations: 0.5833 MB / 1.478 GB, free: 11.02 MB / 1.17 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00026/1.141, allocations: 226.5 kB / 1.478 GB, free: 10.79 MB / 1.17 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003679/1.141, allocations: 253.5 kB / 1.478 GB, free: 10.54 MB / 1.17 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.584e-06/1.141, allocations: 8 kB / 1.478 GB, free: 10.53 MB / 1.17 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.167e-06/1.141, allocations: 4 kB / 1.478 GB, free: 10.53 MB / 1.17 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.237e-06/1.141, allocations: 3.984 kB / 1.478 GB, free: 10.52 MB / 1.17 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004032/1.145, allocations: 2.401 MB / 1.48 GB, free: 8.059 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.977e-06/1.145, allocations: 4 kB / 1.48 GB, free: 8.055 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003089/1.145, allocations: 71.89 kB / 1.48 GB, free: 7.984 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009332/1.146, allocations: 341.7 kB / 1.481 GB, free: 7.645 MB / 1.17 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.787e-05/1.146, allocations: 19.98 kB / 1.481 GB, free: 7.625 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007373/1.154, allocations: 5.542 MB / 1.486 GB, free: 1.805 MB / 1.17 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.527e-06/1.154, allocations: 3.938 kB / 1.486 GB, free: 1.801 MB / 1.17 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00305/1.157, allocations: 1.582 MB / 1.488 GB, free: 196 kB / 1.17 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004701/1.157, allocations: 327.7 kB / 1.488 GB, free: 15.85 MB / 1.186 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001527/1.158, allocations: 27.86 kB / 1.488 GB, free: 15.82 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004565/1.158, allocations: 43.91 kB / 1.488 GB, free: 15.78 MB / 1.186 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002343/1.158, allocations: 100.5 kB / 1.488 GB, free: 15.68 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.186e-05/1.158, allocations: 23.98 kB / 1.488 GB, free: 15.66 MB / 1.186 GB Notification: Performance of sorting global known variables: time 0.002686/1.161, allocations: 2.337 MB / 1.491 GB, free: 13.31 MB / 1.186 GB Notification: Performance of sort global known variables: time 3.61e-07/1.161, allocations: 4 kB / 1.491 GB, free: 13.3 MB / 1.186 GB Notification: Performance of remove unused functions: time 0.001075/1.162, allocations: 327.4 kB / 1.491 GB, free: 12.98 MB / 1.186 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 5 (thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,conHeaCoo.I.y,assEqu.diff,mean.x) * Number of discrete variables: 21 (not1.y,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,intGai.nextTimeEvent,intGai.nextTimeEventScaled,reference.nextTimeEvent,reference.nextTimeEventScaled,setTemp.nextTimeEvent,setTemp.nextTimeEventScaled,hysteresis.y,assEqu.satisfied,assEqu.nFai,mean.y_last,timer.entryTime,thr.y,cha.u) * Number of discrete states: 11 (intGai.nextTimeEvent,reference.nextTimeEvent,setTemp.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,setTemp.nextTimeEventScaled,reference.nextTimeEventScaled,intGai.nextTimeEventScaled,hysteresis.y,cha.u) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (47): * Single equations (assignments): 36 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 9 * 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): 1 system {(1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,27)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001798/1.164, allocations: 498.7 kB / 1.491 GB, free: 12.68 MB / 1.186 GB Notification: Performance of simCode: created initialization part: time 0.002464/1.166, allocations: 1.031 MB / 1.492 GB, free: 11.64 MB / 1.186 GB Notification: Performance of simCode: created event and clocks part: time 7.013e-06/1.166, allocations: 0 / 1.492 GB, free: 11.64 MB / 1.186 GB Notification: Performance of simCode: created simulation system equations: time 0.001585/1.168, allocations: 0.7855 MB / 1.493 GB, free: 10.83 MB / 1.186 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001533/1.17, allocations: 303.7 kB / 1.493 GB, free: 10.55 MB / 1.186 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006426/1.176, allocations: 4.203 MB / 1.497 GB, free: 6.301 MB / 1.186 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001306/1.177, allocations: 1.528 MB / 1.499 GB, free: 4.738 MB / 1.186 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002403/1.178, allocations: 71.41 kB / 1.499 GB, free: 4.672 MB / 1.186 GB Notification: Performance of SimCode: time 8.92e-07/1.178, allocations: 0 / 1.499 GB, free: 4.672 MB / 1.186 GB Notification: Performance of Templates: time 0.04897/1.227, allocations: 32.45 MB / 1.531 GB, free: 4.25 MB / 1.217 GB " [Timeout remaining time 299] make -j1 -f Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.pipe ; mkfifo Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.pipe ; head -c 1048576 < Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.pipe >> ../files/Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.sim & ./Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11 -abortSlowSimulation -alarm=800 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.pipe 2>&1) [Timeout 800] diffSimulationResults("Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase11.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase11.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] "" Variables in the reference:time,mean.y,reference.y[2],assEqu.diff,assEqu.threShold,assEqu.satisfied Variables in the result:assEqu.diff,assEqu.satisfied,assEqu.threShold,mean.y,reference.y[2],time [Calling sys.exit(0), Time elapsed: 15.102224953006953]