Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.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 0.0009218/0.0009218, allocations: 80.8 kB / 20.75 MB, free: 3.738 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 0.001468/0.001468, allocations: 161.4 kB / 24.17 MB, free: 328 kB / 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 0.9212/0.9212, allocations: 177.1 MB / 204.6 MB, free: 5.469 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 1.871/1.871, allocations: 389.6 MB / 0.6354 GB, free: 12.29 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.Airflow.Multizone.Examples.ZonalFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow")
translateModel(Buildings.Airflow.Multizone.Examples.ZonalFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 1.653e-06/1.653e-06, allocations: 0 / 0.7752 GB, free: 5.367 MB / 0.7292 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 2.22e-05/2.386e-05, allocations: 5.406 kB / 0.7752 GB, free: 5.363 MB / 0.7292 GB
Notification: Performance of NFInst.instantiate(Buildings.Airflow.Multizone.Examples.ZonalFlow): time 0.1252/0.1252, allocations: 151.1 MB / 0.9227 GB, free: 13.89 MB / 0.8855 GB
Notification: Performance of NFInst.instExpressions: time 0.005559/0.1307, allocations: 3.815 MB / 0.9265 GB, free: 10.07 MB / 0.8855 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0007395/0.1315, allocations: 47.62 kB / 0.9265 GB, free: 10.02 MB / 0.8855 GB
Notification: Performance of NFTyping.typeComponents: time 0.0006465/0.1321, allocations: 313.8 kB / 0.9268 GB, free: 9.711 MB / 0.8855 GB
Notification: Performance of NFTyping.typeBindings: time 0.001992/0.1341, allocations: 1.383 MB / 0.9282 GB, free: 8.32 MB / 0.8855 GB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/Airflow/Multizone/ZonalFlow_ACS.mo:29:3-37:11:writable] Warning: initial() may only be used as a when condition (when initial() or when {..., initial(), ...}), but got condition 'zonFlo.useDefaultProperties and initial()'.
Notification: Performance of NFTyping.typeClassSections: time 0.0008185/0.1349, allocations: 0.5602 MB / 0.9287 GB, free: 7.762 MB / 0.8855 GB
Notification: Performance of NFFlatten.flatten: time 0.00269/0.1376, allocations: 3.299 MB / 0.9319 GB, free: 4.453 MB / 0.8855 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001385/0.139, allocations: 0.8882 MB / 0.9328 GB, free: 3.559 MB / 0.8855 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.002054/0.1411, allocations: 1.723 MB / 0.9345 GB, free: 1.871 MB / 0.8855 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.000974/0.142, allocations: 0.966 MB / 0.9354 GB, free: 0.9023 MB / 0.8855 GB
Notification: Performance of NFPackage.collectConstants: time 0.0001244/0.1422, allocations: 135.9 kB / 0.9356 GB, free: 0.7695 MB / 0.8855 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0005864/0.1428, allocations: 371.2 kB / 0.9359 GB, free: 416 kB / 0.8855 GB
Notification: Performance of NFScalarize.scalarize: time 0.0003496/0.1431, allocations: 0.5649 MB / 0.9365 GB, free: 15.84 MB / 0.9011 GB
Notification: Performance of NFVerifyModel.verify: time 0.0004594/0.1436, allocations: 0.538 MB / 0.937 GB, free: 15.3 MB / 0.9011 GB
Notification: Performance of NFConvertDAE.convert: time 0.001144/0.1447, allocations: 1.297 MB / 0.9383 GB, free: 14 MB / 0.9011 GB
Notification: Performance of FrontEnd - DAE generated: time 4.679e-06/0.1447, allocations: 0 / 0.9383 GB, free: 14 MB / 0.9011 GB
Notification: Performance of FrontEnd: time 1.052e-06/0.1447, allocations: 0 / 0.9383 GB, free: 14 MB / 0.9011 GB
Notification: Performance of Transformations before backend: time 1.348e-05/0.1447, allocations: 0 / 0.9383 GB, free: 14 MB / 0.9011 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 265
 * Number of variables: 265
Notification: Performance of Generate backend data structure: time 0.002039/0.1468, allocations: 1.546 MB / 0.9398 GB, free: 12.42 MB / 0.9011 GB
Notification: Performance of prepare preOptimizeDAE: time 3.396e-05/0.1468, allocations: 9.344 kB / 0.9398 GB, free: 12.41 MB / 0.9011 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009865/0.1478, allocations: 427.9 kB / 0.9402 GB, free: 12 MB / 0.9011 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007426/0.1485, allocations: 0.6161 MB / 0.9408 GB, free: 11.35 MB / 0.9011 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.979e-05/0.1486, allocations: 74.02 kB / 0.9409 GB, free: 11.27 MB / 0.9011 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001045/0.1487, allocations: 108 kB / 0.941 GB, free: 11.17 MB / 0.9011 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007063/0.1494, allocations: 0.8329 MB / 0.9418 GB, free: 10.25 MB / 0.9011 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.229e-05/0.1494, allocations: 0 / 0.9418 GB, free: 10.25 MB / 0.9011 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.026e-05/0.1495, allocations: 43.98 kB / 0.9418 GB, free: 10.21 MB / 0.9011 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.015e-05/0.1495, allocations: 62.06 kB / 0.9419 GB, free: 10.14 MB / 0.9011 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005113/0.15, allocations: 342.8 kB / 0.9422 GB, free: 9.789 MB / 0.9011 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 0.002504/0.1525, allocations: 2.156 MB / 0.9443 GB, free: 7.59 MB / 0.9011 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0004677/0.153, allocations: 407.3 kB / 0.9447 GB, free: 7.18 MB / 0.9011 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001919/0.1532, allocations: 177.7 kB / 0.9449 GB, free: 7.008 MB / 0.9011 GB
Notification: Performance of preOpt evalFunc (simulation): time 4.085e-05/0.1532, allocations: 20.64 kB / 0.9449 GB, free: 6.988 MB / 0.9011 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003114/0.1535, allocations: 457.9 kB / 0.9453 GB, free: 6.477 MB / 0.9011 GB
Notification: Performance of pre-optimization done (n=76): time 2.775e-06/0.1535, allocations: 4 kB / 0.9453 GB, free: 6.473 MB / 0.9011 GB
Notification: Performance of matching and sorting (n=76): time 0.0007196/0.1543, allocations: 433.8 kB / 0.9457 GB, free: 6.047 MB / 0.9011 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.518e-05/0.1543, allocations: 60.06 kB / 0.9458 GB, free: 5.977 MB / 0.9011 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002574/0.1545, allocations: 443.1 kB / 0.9462 GB, free: 5.531 MB / 0.9011 GB
Notification: Performance of collectPreVariables (initialization): time 3.727e-05/0.1546, allocations: 41.7 kB / 0.9463 GB, free: 5.484 MB / 0.9011 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001521/0.1547, allocations: 409.8 kB / 0.9466 GB, free: 5.074 MB / 0.9011 GB
Notification: Performance of collectInitialBindings (initialization): time 0.000136/0.1549, allocations: 285.5 kB / 0.9469 GB, free: 4.793 MB / 0.9011 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001211/0.155, allocations: 122.6 kB / 0.947 GB, free: 4.668 MB / 0.9011 GB
Notification: Performance of setup shared object (initialization): time 0.000101/0.1551, allocations: 382.6 kB / 0.9474 GB, free: 4.285 MB / 0.9011 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001106/0.1552, allocations: 88.8 kB / 0.9475 GB, free: 4.195 MB / 0.9011 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001527/0.1554, allocations: 196.8 kB / 0.9477 GB, free: 3.965 MB / 0.9011 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003053/0.1557, allocations: 352.7 kB / 0.948 GB, free: 3.586 MB / 0.9011 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.916e-06/0.1557, allocations: 4 kB / 0.948 GB, free: 3.582 MB / 0.9011 GB
Notification: Performance of matching and sorting (n=91) (initialization): time 0.000389/0.156, allocations: 391.9 kB / 0.9484 GB, free: 3.191 MB / 0.9011 GB
Notification: Performance of prepare postOptimizeDAE: time 1.649e-05/0.1561, allocations: 8 kB / 0.9484 GB, free: 3.184 MB / 0.9011 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.452e-06/0.1561, allocations: 4 kB / 0.9484 GB, free: 3.18 MB / 0.9011 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.239e-05/0.1561, allocations: 4 kB / 0.9484 GB, free: 3.176 MB / 0.9011 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000397/0.1565, allocations: 168.1 kB / 0.9486 GB, free: 3.012 MB / 0.9011 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.204e-06/0.1565, allocations: 15.92 kB / 0.9486 GB, free: 2.996 MB / 0.9011 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002661/0.1568, allocations: 51.62 kB / 0.9486 GB, free: 2.945 MB / 0.9011 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.736e-05/0.1568, allocations: 20 kB / 0.9486 GB, free: 2.926 MB / 0.9011 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 12
 * Number of states: 0 ()
 * Number of discrete variables: 1 ($whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (91):
 * Single equations (assignments): 91
 * 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 0.0001573/0.1569, allocations: 160.4 kB / 0.9488 GB, free: 2.758 MB / 0.9011 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 8.376e-05/0.157, allocations: 75.92 kB / 0.9489 GB, free: 2.684 MB / 0.9011 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001076/0.1571, allocations: 99.23 kB / 0.949 GB, free: 2.586 MB / 0.9011 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.31e-06/0.1571, allocations: 8 kB / 0.949 GB, free: 2.578 MB / 0.9011 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.987e-06/0.1571, allocations: 0 / 0.949 GB, free: 2.578 MB / 0.9011 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0003641/0.1575, allocations: 0.5931 MB / 0.9495 GB, free: 1.898 MB / 0.9011 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001029/0.1585, allocations: 1.003 MB / 0.9505 GB, free: 0.8594 MB / 0.9011 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.877e-06/0.1585, allocations: 3.984 kB / 0.9505 GB, free: 0.8555 MB / 0.9011 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005434/0.1591, allocations: 226.5 kB / 0.9507 GB, free: 0.6328 MB / 0.9011 GB
Notification: Performance of postOpt tearingSystem (simulation): time 5.681e-06/0.1591, allocations: 4 kB / 0.9508 GB, free: 0.6289 MB / 0.9011 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.007e-05/0.1591, allocations: 12 kB / 0.9508 GB, free: 0.6172 MB / 0.9011 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.845e-06/0.1591, allocations: 4 kB / 0.9508 GB, free: 0.6133 MB / 0.9011 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.162e-06/0.1591, allocations: 0 / 0.9508 GB, free: 0.6133 MB / 0.9011 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005545/0.1597, allocations: 0.5963 MB / 0.9514 GB, free: 15.99 MB / 0.9167 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001643/0.1598, allocations: 131.2 kB / 0.9515 GB, free: 15.87 MB / 0.9167 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.235e-05/0.1599, allocations: 19.98 kB / 0.9515 GB, free: 15.85 MB / 0.9167 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002321/0.1601, allocations: 14.25 kB / 0.9515 GB, free: 15.84 MB / 0.9167 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.021e-05/0.1602, allocations: 44.56 kB / 0.9516 GB, free: 15.79 MB / 0.9167 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.11e-05/0.1602, allocations: 27.98 kB / 0.9516 GB, free: 15.77 MB / 0.9167 GB
Notification: Performance of sorting global known variables: time 0.0001409/0.1603, allocations: 192.4 kB / 0.9518 GB, free: 15.58 MB / 0.9167 GB
Notification: Performance of sort global known variables: time 6e-08/0.1603, allocations: 0 / 0.9518 GB, free: 15.58 MB / 0.9167 GB
Notification: Performance of remove unused functions: time 0.0004781/0.1608, allocations: 375.2 kB / 0.9521 GB, free: 15.21 MB / 0.9167 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 2
 * Number of states: 6 (rooA.dynBal.medium.Xi[1],rooA.dynBal.U,rooA.dynBal.m,rooB.dynBal.medium.Xi[1],rooB.dynBal.U,rooB.dynBal.m)
 * Number of discrete variables: 1 ($whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (76):
 * Single equations (assignments): 76
 * 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 0.0001444/0.161, allocations: 108.3 kB / 0.9522 GB, free: 15.1 MB / 0.9167 GB
Notification: Performance of simCode: created initialization part: time 0.0004887/0.1615, allocations: 336.2 kB / 0.9525 GB, free: 14.77 MB / 0.9167 GB
Notification: Performance of simCode: created event and clocks part: time 5.671e-06/0.1615, allocations: 4 kB / 0.9525 GB, free: 14.77 MB / 0.9167 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001659/0.1616, allocations: 193.7 kB / 0.9527 GB, free: 14.57 MB / 0.9167 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001089/0.1627, allocations: 0.5611 MB / 0.9533 GB, free: 14.02 MB / 0.9167 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001816/0.1645, allocations: 1.667 MB / 0.9549 GB, free: 12.31 MB / 0.9167 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001656/0.1647, allocations: 257.3 kB / 0.9552 GB, free: 12.04 MB / 0.9167 GB
Notification: Performance of simCode: alias equations: time 0.0003903/0.1651, allocations: 146.9 kB / 0.9553 GB, free: 11.89 MB / 0.9167 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006491/0.1657, allocations: 371.1 kB / 0.9556 GB, free: 11.52 MB / 0.9167 GB
Notification: Performance of SimCode: time 9.31e-07/0.1657, allocations: 0 / 0.9556 GB, free: 11.52 MB / 0.9167 GB
Notification: Performance of Templates: time 0.02089/0.1866, allocations: 19.46 MB / 0.9747 GB, free: 8.531 MB / 0.9323 GB
"
[Timeout remaining time 300]
make -j1 -f Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.makefile [Timeout 300]
(rm -f Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.pipe ; mkfifo Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.pipe ; head -c 1048576 < Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.pipe >> ../files/Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.sim & (cd run_cvode && ../Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow -abortSlowSimulation -alarm=240  -lv LOG_STATS -inputPath=.. -s cvode) > Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow.pipe 2>&1) [Timeout 240]
(rm -f Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_gbode.pipe ; mkfifo Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_gbode.pipe ; head -c 1048576 < Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_gbode.pipe >> /var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_gbode.sim & (cd run_gbode && ../Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow -abortSlowSimulation -alarm=240  -lv LOG_STATS -inputPath=.. -s gbode -gbm=radauIIA3) > Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_gbode.pipe 2>&1) [Timeout 240]
(rm -f Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_ida.pipe ; mkfifo Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_ida.pipe ; head -c 1048576 < Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_ida.pipe >> /var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_ida.sim & (cd run_ida && ../Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow -abortSlowSimulation -alarm=240  -lv LOG_STATS -inputPath=.. -s ida) > Buildings_13_Buildings.Airflow.Multizone.Examples.ZonalFlow_ida.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 5.3204416474327445]