Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.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 0.001583/0.001583, allocations: 88.72 kB / 19.44 MB, free: 356 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 0.001581/0.001581, allocations: 157.7 kB / 22.75 MB, free: 1.684 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 1.463/1.463, allocations: 177.1 MB / 203.1 MB, free: 5.586 MB / 186.7 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo", uses=false) [Timeout 180]
"[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-535:34:writable] Warning: Lexer treating \\ as \\\\, since \\e is not a valid Modelica escape sequence.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Examples/PPD12/Structure.mo:531:21-535:42:writable] Warning: Lexer treating \\ as \\\\, since \\< is not a valid Modelica escape sequence.
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/package.mo): time 1.188/1.188, allocations: 154.8 MB / 414.3 MB, free: 448 kB / 378.7 MB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/Cryptographics/BaseClasses/sha.mo:2:1-19:8:writable] Warning: External function annotation should occur on the external-clause, not on the function.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS master/Utilities/File/sha2.mo:2:1-9:9:writable] Warning: External function annotation should occur on the external-clause, not on the function.
"
[Timeout remaining time 178]
Using package IDEAS with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 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(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow")
translateModel(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow,tolerance=1e-08,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow") [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 1.753e-06/1.753e-06, allocations: 0 / 0.5199 GB, free: 2.262 MB / 490.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 3.006e-05/3.181e-05, allocations: 7.328 kB / 0.5199 GB, free: 2.258 MB / 490.7 MB
Notification: Performance of NFInst.instantiate(IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow): time 0.5452/0.5453, allocations: 168.3 MB / 0.6842 GB, free: 45.62 MB / 0.6355 GB
Notification: Performance of NFInst.instExpressions: time 0.01015/0.5554, allocations: 5.434 MB / 0.6895 GB, free: 45.58 MB / 0.6355 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001596/0.557, allocations: 56.75 kB / 0.6896 GB, free: 45.58 MB / 0.6355 GB
Notification: Performance of NFTyping.typeComponents: time 0.001624/0.5586, allocations: 0.5551 MB / 0.6901 GB, free: 45.57 MB / 0.6355 GB
Notification: Performance of NFTyping.typeBindings: time 0.005009/0.5636, allocations: 1.966 MB / 0.692 GB, free: 45.49 MB / 0.6355 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003157/0.5668, allocations: 1.245 MB / 0.6932 GB, free: 45.46 MB / 0.6355 GB
Notification: Performance of NFFlatten.flatten: time 0.004091/0.5709, allocations: 3.057 MB / 0.6962 GB, free: 45.37 MB / 0.6355 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001337/0.5722, allocations: 0.8584 MB / 0.6971 GB, free: 45.29 MB / 0.6355 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.002931/0.5752, allocations: 1.673 MB / 0.6987 GB, free: 45.14 MB / 0.6355 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001919/0.5771, allocations: 0.9292 MB / 0.6996 GB, free: 45.05 MB / 0.6355 GB
Notification: Performance of NFPackage.collectConstants: time 0.000223/0.5773, allocations: 122.4 kB / 0.6997 GB, free: 45.05 MB / 0.6355 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.003225/0.5805, allocations: 1.213 MB / 0.7009 GB, free: 44.93 MB / 0.6355 GB
Notification: Performance of NFScalarize.scalarize: time 0.0007601/0.5813, allocations: 0.623 MB / 0.7015 GB, free: 44.86 MB / 0.6355 GB
Notification: Performance of NFVerifyModel.verify: time 0.0008366/0.5821, allocations: 0.5161 MB / 0.702 GB, free: 44.8 MB / 0.6355 GB
Notification: Performance of NFConvertDAE.convert: time 0.004521/0.5866, allocations: 2.381 MB / 0.7043 GB, free: 44.6 MB / 0.6355 GB
Notification: Performance of FrontEnd - DAE generated: time 7.464e-06/0.5866, allocations: 0 / 0.7043 GB, free: 44.6 MB / 0.6355 GB
Notification: Performance of FrontEnd: time 3.166e-06/0.5866, allocations: 0.9062 kB / 0.7043 GB, free: 44.6 MB / 0.6355 GB
Notification: Performance of Transformations before backend: time 3.782e-05/0.5867, allocations: 2.188 kB / 0.7043 GB, free: 44.6 MB / 0.6355 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 248
 * Number of variables: 248
Notification: Performance of Generate backend data structure: time 0.002906/0.5896, allocations: 1.568 MB / 0.7059 GB, free: 43.84 MB / 0.6355 GB
Notification: Performance of prepare preOptimizeDAE: time 3.788e-05/0.5896, allocations: 8.75 kB / 0.7059 GB, free: 43.84 MB / 0.6355 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00207/0.5917, allocations: 458.3 kB / 0.7063 GB, free: 43.73 MB / 0.6355 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001503/0.5932, allocations: 0.9001 MB / 0.7072 GB, free: 43.46 MB / 0.6355 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.328e-05/0.5933, allocations: 71.84 kB / 0.7073 GB, free: 43.46 MB / 0.6355 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001753/0.5934, allocations: 106.5 kB / 0.7074 GB, free: 43.46 MB / 0.6355 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001944/0.5954, allocations: 1.527 MB / 0.7089 GB, free: 42.84 MB / 0.6355 GB
Notification: Performance of preOpt findStateOrder (simulation): time 3.047e-05/0.5954, allocations: 2.625 kB / 0.7089 GB, free: 42.84 MB / 0.6355 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001149/0.5955, allocations: 44.17 kB / 0.7089 GB, free: 42.84 MB / 0.6355 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.927e-05/0.5956, allocations: 46.48 kB / 0.709 GB, free: 42.84 MB / 0.6355 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001526/0.5971, allocations: 0.9836 MB / 0.7099 GB, free: 42.83 MB / 0.6355 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 0.005222/0.6023, allocations: 2.766 MB / 0.7126 GB, free: 42.37 MB / 0.6355 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0008073/0.6031, allocations: 0.5655 MB / 0.7132 GB, free: 42.35 MB / 0.6355 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004445/0.6036, allocations: 319.9 kB / 0.7135 GB, free: 42.34 MB / 0.6355 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0001734/0.6038, allocations: 33.52 kB / 0.7135 GB, free: 42.34 MB / 0.6355 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.812e-05/0.6038, allocations: 46.66 kB / 0.7135 GB, free: 42.3 MB / 0.6355 GB
Notification: Performance of pre-optimization done (n=53): time 2.524e-06/0.6038, allocations: 0 / 0.7135 GB, free: 42.3 MB / 0.6355 GB
Notification: Performance of matching and sorting (n=55): time 0.004713/0.6085, allocations: 1.908 MB / 0.7154 GB, free: 41.88 MB / 0.6355 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.207e-05/0.6085, allocations: 66.41 kB / 0.7155 GB, free: 41.8 MB / 0.6355 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009663/0.6095, allocations: 0.6996 MB / 0.7162 GB, free: 41.66 MB / 0.6355 GB
Notification: Performance of collectPreVariables (initialization): time 7.048e-05/0.6096, allocations: 39.11 kB / 0.7162 GB, free: 41.62 MB / 0.6355 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0003444/0.6099, allocations: 0.5354 MB / 0.7167 GB, free: 41.35 MB / 0.6355 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001825/0.6101, allocations: 205.4 kB / 0.7169 GB, free: 41.21 MB / 0.6355 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000241/0.6103, allocations: 134.1 kB / 0.717 GB, free: 41.19 MB / 0.6355 GB
Notification: Performance of setup shared object (initialization): time 0.0001184/0.6104, allocations: 384 kB / 0.7174 GB, free: 40.88 MB / 0.6355 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004958/0.6109, allocations: 288.8 kB / 0.7177 GB, free: 40.88 MB / 0.6355 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005677/0.6115, allocations: 487.5 kB / 0.7181 GB, free: 40.68 MB / 0.6355 GB
Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: volDyn.dynBal.medium.p = volDyn.dynBal.p_start (bou.p = volDyn.dynBal.p_start)
Notification: Performance of analyzeInitialSystem (initialization): time 0.003976/0.6155, allocations: 1.67 MB / 0.7198 GB, free: 40.54 MB / 0.6355 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.843e-06/0.6155, allocations: 1.062 kB / 0.7198 GB, free: 40.54 MB / 0.6355 GB
Notification: Performance of matching and sorting (n=84) (initialization): time 0.001705/0.6172, allocations: 0.9368 MB / 0.7207 GB, free: 40.43 MB / 0.6355 GB
Notification: Performance of prepare postOptimizeDAE: time 2.305e-05/0.6172, allocations: 8.125 kB / 0.7207 GB, free: 40.43 MB / 0.6355 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.466e-05/0.6172, allocations: 8.438 kB / 0.7207 GB, free: 40.42 MB / 0.6355 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0002401/0.6175, allocations: 97.73 kB / 0.7208 GB, free: 40.4 MB / 0.6355 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007631/0.6182, allocations: 165.1 kB / 0.721 GB, free: 40.4 MB / 0.6355 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002892/0.6211, allocations: 4.257 MB / 0.7251 GB, free: 36.84 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009577/0.6221, allocations: 32.5 kB / 0.7251 GB, free: 36.84 MB / 0.6355 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.635e-05/0.6222, allocations: 27.39 kB / 0.7252 GB, free: 36.84 MB / 0.6355 GB
Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system:
         volDyn.dynBal.medium.p = volDyn.dynBal.p_start.
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * 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 (80):
 * 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: 3
 * 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): 3 systems
   {(1,1), (1,1), (1,2)}
Notification: Performance of prepare postOptimizeDAE: time 0.0006625/0.6228, allocations: 346.5 kB / 0.7255 GB, free: 36.72 MB / 0.6355 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002115/0.623, allocations: 108.5 kB / 0.7256 GB, free: 36.68 MB / 0.6355 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001919/0.6232, allocations: 97.61 kB / 0.7257 GB, free: 36.66 MB / 0.6355 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.47e-06/0.6232, allocations: 4.812 kB / 0.7257 GB, free: 36.66 MB / 0.6355 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.036e-05/0.6232, allocations: 6.094 kB / 0.7257 GB, free: 36.66 MB / 0.6355 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001154/0.6244, allocations: 0.7591 MB / 0.7265 GB, free: 36.39 MB / 0.6355 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00326/0.6277, allocations: 1.71 MB / 0.7281 GB, free: 36.03 MB / 0.6355 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.123e-06/0.6277, allocations: 3.094 kB / 0.7281 GB, free: 36.03 MB / 0.6355 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006912/0.6284, allocations: 149.7 kB / 0.7283 GB, free: 36.03 MB / 0.6355 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0001155/0.6285, allocations: 41.47 kB / 0.7283 GB, free: 36.02 MB / 0.6355 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.463e-05/0.6285, allocations: 13.91 kB / 0.7283 GB, free: 36.02 MB / 0.6355 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001031/0.6295, allocations: 1.477 MB / 0.7298 GB, free: 34.84 MB / 0.6355 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.879e-06/0.6295, allocations: 3.781 kB / 0.7298 GB, free: 34.84 MB / 0.6355 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001979/0.6315, allocations: 1.216 MB / 0.731 GB, free: 34.52 MB / 0.6355 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.000499/0.632, allocations: 160.1 kB / 0.7311 GB, free: 34.48 MB / 0.6355 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001046/0.6321, allocations: 16.12 kB / 0.7311 GB, free: 34.48 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006839/0.6328, allocations: 36.39 kB / 0.7312 GB, free: 34.47 MB / 0.6355 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001639/0.633, allocations: 51.05 kB / 0.7312 GB, free: 34.47 MB / 0.6355 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.843e-05/0.6331, allocations: 30.73 kB / 0.7312 GB, free: 34.47 MB / 0.6355 GB
Notification: Performance of sorting global known variables: time 0.0006996/0.6338, allocations: 483.6 kB / 0.7317 GB, free: 34.38 MB / 0.6355 GB
Notification: Performance of sort global known variables: time 9e-08/0.6338, allocations: 0 / 0.7317 GB, free: 34.38 MB / 0.6355 GB
Notification: Performance of remove unused functions: time 0.001325/0.6351, allocations: 307.1 kB / 0.732 GB, free: 34.37 MB / 0.6355 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 14
 * Number of states: 3 (volDyn.dynBal.medium.Xi[1],volDyn.dynBal.U,volDyn.dynBal.mC[1])
 * 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 (53):
 * Single equations (assignments): 52
 * 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
   {(1,2)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0003882/0.6355, allocations: 179.5 kB / 0.7322 GB, free: 34.28 MB / 0.6355 GB
Notification: Performance of simCode: created initialization part: time 0.001519/0.637, allocations: 0.9809 MB / 0.7331 GB, free: 33.95 MB / 0.6355 GB
Notification: Performance of simCode: created event and clocks part: time 5.5e-06/0.637, allocations: 3.781 kB / 0.7331 GB, free: 33.95 MB / 0.6355 GB
Notification: Performance of simCode: created simulation system equations: time 0.0005849/0.6376, allocations: 438.8 kB / 0.7335 GB, free: 33.84 MB / 0.6355 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002303/0.6399, allocations: 0.5446 MB / 0.7341 GB, free: 33.79 MB / 0.6355 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003312/0.6432, allocations: 2.032 MB / 0.7361 GB, free: 32.93 MB / 0.6355 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006345/0.6438, allocations: 0.5755 MB / 0.7366 GB, free: 32.82 MB / 0.6355 GB
Notification: Performance of simCode: alias equations: time 0.000889/0.6447, allocations: 223.4 kB / 0.7368 GB, free: 32.79 MB / 0.6355 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002001/0.6449, allocations: 72.34 kB / 0.7369 GB, free: 32.78 MB / 0.6355 GB
Notification: Performance of SimCode: time 1.312e-06/0.6449, allocations: 0 / 0.7369 GB, free: 32.78 MB / 0.6355 GB
Notification: Performance of Templates: time 0.02915/0.6741, allocations: 19.73 MB / 0.7562 GB, free: 30.81 MB / 0.6355 GB
"
[Timeout remaining time 659]
make -j1 -f IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.makefile [Timeout 660]
(rm -f IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.sim & ./IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_dev_IDEAS.Fluid.MixingVolumes.Validation.MixingVolumeTraceSubstanceReverseFlow.pipe 2>&1) [Timeout 480]
[Calling sys.exit(0), Time elapsed: 7.083992826985195]