Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Chemical_master_Chemical.Boundaries.Tests.TestExternalSubstance.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 0.001532/0.001532, 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 0.001905/0.001905, allocations: 165.3 kB / 23.02 MB, free: 1.555 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 0.9383/0.9383, allocations: 177.1 MB / 203.4 MB, free: 5.629 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/package.mo): time 0.08824/0.08824, allocations: 17.46 MB / 277.4 MB, free: 11.55 MB / 266.7 MB " [Timeout remaining time 180] Using package Chemical with version 2.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 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(Chemical.Boundaries.Tests.TestExternalSubstance,tolerance=1e-06,outputFormat="empty",numberOfIntervals=1000,variableFilter="",fileNamePrefix="Chemical_master_Chemical.Boundaries.Tests.TestExternalSubstance") translateModel(Chemical.Boundaries.Tests.TestExternalSubstance,tolerance=1e-06,outputFormat="empty",numberOfIntervals=1000,variableFilter="",fileNamePrefix="Chemical_master_Chemical.Boundaries.Tests.TestExternalSubstance") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.393e-06/1.393e-06, allocations: 0 / 353.5 MB, free: 9.852 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.537e-05/2.676e-05, allocations: 6.25 kB / 353.5 MB, free: 9.844 MB / 282.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/Interfaces.mo:1586:5-1586:64:writable] Warning: An inner declaration for outer component system could not be found and was automatically generated. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/Interfaces.mo:1586:5-1586:64:writable] Notification: The diagnostics message for the missing inner is: Your model is using an outer \"system\" component but an inner \"system\" component is not defined. For simulation drag Modelica.Fluid.System into your model to specify system properties. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/Boundaries.mo:1361:7-1361:76:writable] Warning: An inner declaration for outer component dropOfCommons could not be found and was automatically generated. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical master/Boundaries.mo:1361:7-1361:76:writable] Notification: The diagnostics message for the missing inner is: Your model is using an outer \"dropOfCommons\" component but an inner \"dropOfCommons\" component is not defined. Use Chemical.DropOfCommons in your model to specify system properties. Notification: Performance of NFInst.instantiate(Chemical.Boundaries.Tests.TestExternalSubstance): time 0.04409/0.04412, allocations: 52.78 MB / 406.3 MB, free: 5.105 MB / 330.7 MB Notification: Performance of NFInst.instExpressions: time 0.1472/0.1914, allocations: 14.13 MB / 420.4 MB, free: 33.94 MB / 330.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.005885/0.1972, allocations: 194.2 kB / 420.6 MB, free: 33.94 MB / 330.7 MB Notification: Performance of NFTyping.typeComponents: time 0.005406/0.2027, allocations: 2.059 MB / 422.7 MB, free: 33.78 MB / 330.7 MB Notification: Performance of NFTyping.typeBindings: time 0.008438/0.2111, allocations: 3.24 MB / 425.9 MB, free: 32.39 MB / 330.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.006129/0.2172, allocations: 2.062 MB / 428 MB, free: 31.4 MB / 330.7 MB Notification: Performance of NFFlatten.flatten: time 0.01035/0.2276, allocations: 7.9 MB / 435.9 MB, free: 27.24 MB / 330.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001705/0.2293, allocations: 1.76 MB / 437.7 MB, free: 26.25 MB / 330.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003805/0.2331, allocations: 4.654 MB / 442.3 MB, free: 23.5 MB / 330.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.003104/0.2362, allocations: 3.321 MB / 445.6 MB, free: 21.91 MB / 330.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0009563/0.2371, allocations: 0.7271 MB / 446.4 MB, free: 21.91 MB / 330.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003321/0.2405, allocations: 1.888 MB / 448.3 MB, free: 20.93 MB / 330.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0008292/0.2413, allocations: 2.402 MB / 450.7 MB, free: 18.63 MB / 330.7 MB Notification: Performance of NFVerifyModel.verify: time 0.001555/0.2428, allocations: 2.698 MB / 453.4 MB, free: 16.04 MB / 330.7 MB Notification: Performance of NFConvertDAE.convert: time 0.005377/0.2482, allocations: 8.238 MB / 461.6 MB, free: 8.395 MB / 330.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.369e-06/0.2482, allocations: 0 / 461.6 MB, free: 8.395 MB / 330.7 MB Notification: Performance of FrontEnd: time 1.603e-06/0.2482, allocations: 0 / 461.6 MB, free: 8.395 MB / 330.7 MB Notification: Performance of Transformations before backend: time 8.578e-05/0.2483, allocations: 0 / 461.6 MB, free: 8.395 MB / 330.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2385 * Number of variables: 2385 Notification: Performance of Generate backend data structure: time 0.006564/0.2549, allocations: 9.456 MB / 471 MB, free: 14.95 MB / 346.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.05e-05/0.2549, allocations: 12.03 kB / 471.1 MB, free: 14.94 MB / 346.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00306/0.258, allocations: 3.474 MB / 474.5 MB, free: 11.48 MB / 346.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004405/0.2624, allocations: 4.411 MB / 478.9 MB, free: 7.082 MB / 346.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004834/0.2629, allocations: 0.9765 MB / 479.9 MB, free: 6.035 MB / 346.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005815/0.2635, allocations: 0.7449 MB / 480.7 MB, free: 5.305 MB / 346.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01/0.2735, allocations: 10.34 MB / 491 MB, free: 10.65 MB / 362.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 8.884e-05/0.2735, allocations: 14.72 kB / 491 MB, free: 10.64 MB / 362.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003616/0.2739, allocations: 322 kB / 491.3 MB, free: 10.34 MB / 362.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007484/0.2747, allocations: 1.169 MB / 492.5 MB, free: 9.164 MB / 362.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01394/0.2886, allocations: 12.06 MB / 0.4927 GB, free: 13.07 MB / 378.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03747/0.3261, allocations: 40.56 MB / 0.5323 GB, free: 4.25 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.005123/0.3312, allocations: 1.804 MB / 0.5341 GB, free: 2.422 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002529/0.3337, allocations: 0.9432 MB / 0.535 GB, free: 1.465 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.01686/0.3506, allocations: 10.28 MB / 0.5451 GB, free: 7.242 MB / 426.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.459e-05/0.3506, allocations: 61.39 kB / 0.5451 GB, free: 7.176 MB / 426.7 MB Notification: Performance of pre-optimization done (n=226): time 4.609e-06/0.3506, allocations: 0 / 0.5451 GB, free: 7.176 MB / 426.7 MB Notification: Performance of matching and sorting (n=290): time 0.0628/0.4134, allocations: 22.96 MB / 0.5676 GB, free: 176 kB / 442.7 MB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Notification: Performance of inlineWhenForInitialization (initialization): time 0.2374/0.6508, allocations: 0.9244 MB / 0.5685 GB, free: 118.8 MB / 442.8 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003982/0.6548, allocations: 3.532 MB / 0.5719 GB, free: 118.4 MB / 442.8 MB Notification: Performance of collectPreVariables (initialization): time 0.0008418/0.6556, allocations: 71.58 kB / 0.572 GB, free: 118.4 MB / 442.8 MB Notification: Performance of collectInitialEqns (initialization): time 0.002332/0.6579, allocations: 4.505 MB / 0.5764 GB, free: 117.9 MB / 442.8 MB Notification: Performance of collectInitialBindings (initialization): time 0.0008414/0.6588, allocations: 1.029 MB / 0.5774 GB, free: 117.4 MB / 442.8 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001746/0.6605, allocations: 1.206 MB / 0.5786 GB, free: 117.3 MB / 442.8 MB Notification: Performance of setup shared object (initialization): time 3.08e-05/0.6605, allocations: 476.8 kB / 0.579 GB, free: 116.9 MB / 442.8 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002715/0.6633, allocations: 1.408 MB / 0.5804 GB, free: 116.8 MB / 442.8 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00309/0.6664, allocations: 3.438 MB / 0.5837 GB, free: 114.3 MB / 442.8 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.008679/0.675, allocations: 6.943 MB / 0.5905 GB, free: 111.8 MB / 442.8 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.795e-05/0.675, allocations: 18.78 kB / 0.5905 GB, free: 111.8 MB / 442.8 MB Notification: Performance of matching and sorting (n=508) (initialization): time 0.00993/0.685, allocations: 6.02 MB / 0.5964 GB, free: 111.3 MB / 442.8 MB Notification: Performance of prepare postOptimizeDAE: time 2.65e-05/0.685, allocations: 26.28 kB / 0.5964 GB, free: 111.3 MB / 442.8 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.807e-05/0.685, allocations: 43.84 kB / 0.5965 GB, free: 111.3 MB / 442.8 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.00282/0.6879, allocations: 1.128 MB / 0.5976 GB, free: 111.1 MB / 442.8 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01833/0.7062, allocations: 3.323 MB / 0.6008 GB, free: 111.1 MB / 442.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009505/0.7157, allocations: 29.77 MB / 0.6299 GB, free: 81.55 MB / 442.8 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003382/0.7191, allocations: 210.5 kB / 0.6301 GB, free: 81.48 MB / 442.8 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007657/0.7198, allocations: 0.7869 MB / 0.6309 GB, free: 81.38 MB / 442.8 MB Warning: Assuming fixed start value for the following 8 variables: boundaryFore2.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryRear1.fore.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryFore3.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryRear3.fore.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryRear2.fore.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryFore.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryRear4.fore.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real boundaryFore1.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 212 * Number of states: 0 () * Number of discrete variables: 6 (solvent.substanceDefinitionVar.SelfClustering,solvent.substanceDefinitionVar.data.phase,externalSubstance2.substanceDefinitionVar.SelfClustering,externalSubstance2.substanceDefinitionVar.data.phase,externalIdealGas.substanceDefinitionVar.SelfClustering,externalIdealGas.substanceDefinitionVar.data.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (480): * Single equations (assignments): 463 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * Torn equation systems: 11 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 9 systems {(1,1,100.0%), (1,1,100.0%), (2,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,16), (2,1)} Notification: Performance of prepare postOptimizeDAE: time 0.002036/0.7219, allocations: 459.7 kB / 0.6313 GB, free: 81.1 MB / 442.8 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001179/0.7231, allocations: 0.5607 MB / 0.6319 GB, free: 80.83 MB / 442.8 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01029/0.7333, allocations: 7.217 MB / 0.6389 GB, free: 75.73 MB / 442.8 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.274e-05/0.7334, allocations: 28 kB / 0.6389 GB, free: 75.71 MB / 442.8 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.011e-06/0.7334, allocations: 4 kB / 0.6389 GB, free: 75.7 MB / 442.8 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.542e-05/0.7334, allocations: 21.48 kB / 0.639 GB, free: 75.7 MB / 442.8 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01624/0.7496, allocations: 15.28 MB / 0.6539 GB, free: 61.06 MB / 442.8 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.928e-06/0.7496, allocations: 11.98 kB / 0.6539 GB, free: 61.05 MB / 442.8 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01533/0.765, allocations: 2.485 MB / 0.6563 GB, free: 58.64 MB / 442.8 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002999/0.768, allocations: 1.199 MB / 0.6575 GB, free: 57.43 MB / 442.8 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002432/0.7682, allocations: 155.9 kB / 0.6576 GB, free: 57.28 MB / 442.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.008849/0.7771, allocations: 29.95 MB / 0.6869 GB, free: 25.54 MB / 442.8 MB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.0002758/0.7773, allocations: 0.783 MB / 0.6876 GB, free: 24.74 MB / 442.8 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007727/0.7851, allocations: 5.277 MB / 0.6928 GB, free: 19.15 MB / 442.8 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0005614/0.7856, allocations: 361.2 kB / 0.6931 GB, free: 18.8 MB / 442.8 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004594/0.7861, allocations: 81.75 kB / 0.6932 GB, free: 18.72 MB / 442.8 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001238/0.7873, allocations: 87.97 kB / 0.6933 GB, free: 18.64 MB / 442.8 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000468/0.7878, allocations: 319.9 kB / 0.6936 GB, free: 18.33 MB / 442.8 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002329/0.788, allocations: 266.6 kB / 0.6939 GB, free: 18.07 MB / 442.8 MB Notification: Performance of sorting global known variables: time 0.002614/0.7906, allocations: 2.81 MB / 0.6966 GB, free: 15.26 MB / 442.8 MB Notification: Performance of sort global known variables: time 9.1e-08/0.7906, allocations: 0 / 0.6966 GB, free: 15.26 MB / 442.8 MB Notification: Performance of remove unused functions: time 0.004978/0.7956, allocations: 1.748 MB / 0.6983 GB, free: 13.54 MB / 442.8 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 44 * Number of states: 10 (boundaryFore1.rear.n_flow,boundaryRear1.fore.n_flow,boundaryFore2.rear.n_flow,boundaryRear4.fore.n_flow,$STATESET1.x,boundaryFore.rear.n_flow,boundaryRear2.fore.n_flow,boundaryRear3.fore.n_flow,boundaryFore3.rear.n_flow,solvent.logm) * 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 (252): * Single equations (assignments): 235 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * Torn equation systems: 11 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 9 systems {(1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (2,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,18), (3,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0006807/0.7963, allocations: 492.5 kB / 0.6988 GB, free: 13.19 MB / 442.8 MB Notification: Performance of simCode: created initialization part: time 0.01136/0.8077, allocations: 6.144 MB / 0.7048 GB, free: 7.066 MB / 442.8 MB Notification: Performance of simCode: created event and clocks part: time 6.763e-06/0.8077, allocations: 4 kB / 0.7048 GB, free: 7.062 MB / 442.8 MB Notification: Performance of simCode: created simulation system equations: time 0.007629/0.8153, allocations: 3.952 MB / 0.7086 GB, free: 3.031 MB / 442.8 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002743/0.818, allocations: 1.117 MB / 0.7097 GB, free: 2.004 MB / 442.8 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:4695:9-4695:59:writable] Error: Internal error function createStateSetsSets failed. [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:856:5-856:146:writable] Error: Internal error function createSimCode failed [Transformation from optimised DAE to simulation code structure failed] " [Timeout remaining time 659] [Calling sys.exit(0), Time elapsed: 2.470436462201178]