Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Chemical_master_Chemical.Boundaries.Tests.TestSubstance.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 0.001817/0.001817, allocations: 85.48 kB / 19.44 MB, free: 340 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 0.002035/0.002035, allocations: 173.2 kB / 22.76 MB, free: 1.664 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 1.551/1.551, allocations: 177.1 MB / 203.1 MB, free: 5.27 MB / 186.7 MB " [Timeout remaining time 178] 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 0.1507/0.1507, allocations: 17.45 MB / 277 MB, free: 11.47 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.TestSubstance,tolerance=1e-06,outputFormat="empty",numberOfIntervals=500,variableFilter="",fileNamePrefix="Chemical_master_Chemical.Boundaries.Tests.TestSubstance") translateModel(Chemical.Boundaries.Tests.TestSubstance,tolerance=1e-06,outputFormat="empty",numberOfIntervals=500,variableFilter="",fileNamePrefix="Chemical_master_Chemical.Boundaries.Tests.TestSubstance") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.693e-06/1.693e-06, allocations: 0 / 352.8 MB, free: 10.22 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.006e-05/3.175e-05, allocations: 10.25 kB / 352.8 MB, free: 10.21 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:647:5-647:47: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:647:5-647:47: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.TestSubstance): time 0.07997/0.08, allocations: 56.87 MB / 409.7 MB, free: 1.359 MB / 330.7 MB Notification: Performance of NFInst.instExpressions: time 0.1762/0.2562, allocations: 15.43 MB / 425.1 MB, free: 30.96 MB / 330.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.007972/0.2641, allocations: 245.4 kB / 425.4 MB, free: 30.84 MB / 330.7 MB Notification: Performance of NFTyping.typeComponents: time 0.007941/0.2721, allocations: 2.333 MB / 427.7 MB, free: 29.92 MB / 330.7 MB Notification: Performance of NFTyping.typeBindings: time 0.01509/0.2872, allocations: 3.941 MB / 431.6 MB, free: 28.13 MB / 330.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.007557/0.2947, allocations: 2.355 MB / 434 MB, free: 26.64 MB / 330.7 MB Notification: Performance of NFFlatten.flatten: time 0.01368/0.3084, allocations: 10.01 MB / 444 MB, free: 20.84 MB / 330.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.003414/0.3118, allocations: 1.971 MB / 446 MB, free: 19.77 MB / 330.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.01126/0.3231, allocations: 5.818 MB / 451.8 MB, free: 16.32 MB / 330.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.008925/0.332, allocations: 4.385 MB / 456.2 MB, free: 13.05 MB / 330.7 MB Notification: Performance of NFPackage.collectConstants: time 0.002021/0.334, allocations: 0.9023 MB / 457.1 MB, free: 12.15 MB / 330.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.008212/0.3422, allocations: 2.06 MB / 459.1 MB, free: 10.17 MB / 330.7 MB Notification: Performance of NFScalarize.scalarize: time 0.002477/0.3447, allocations: 2.978 MB / 462.1 MB, free: 7.324 MB / 330.7 MB Notification: Performance of NFVerifyModel.verify: time 0.008163/0.3529, allocations: 3.35 MB / 465.5 MB, free: 4.105 MB / 330.7 MB Notification: Performance of NFConvertDAE.convert: time 0.02787/0.3807, allocations: 14.22 MB / 479.7 MB, free: 6.594 MB / 346.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.399e-06/0.3807, allocations: 0 / 479.7 MB, free: 6.594 MB / 346.7 MB Notification: Performance of FrontEnd: time 1.684e-06/0.3807, allocations: 0 / 479.7 MB, free: 6.594 MB / 346.7 MB Notification: Performance of Transformations before backend: time 0.0005315/0.3813, allocations: 4 kB / 479.7 MB, free: 6.59 MB / 346.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2890 * Number of variables: 2890 Notification: Performance of Generate backend data structure: time 0.02843/0.4097, allocations: 12.31 MB / 492 MB, free: 10.3 MB / 362.7 MB Notification: Performance of prepare preOptimizeDAE: time 5.606e-05/0.4098, allocations: 10.72 kB / 492 MB, free: 10.3 MB / 362.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009222/0.419, allocations: 4.356 MB / 496.4 MB, free: 5.965 MB / 362.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.012/0.431, allocations: 5.511 MB / 0.4901 GB, free: 456 kB / 362.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001435/0.4324, allocations: 1.22 MB / 0.4913 GB, free: 15.13 MB / 378.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002868/0.4353, allocations: 0.9227 MB / 0.4922 GB, free: 14.23 MB / 378.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03443/0.4697, allocations: 14.59 MB / 0.5064 GB, free: 15.38 MB / 394.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001918/0.4699, allocations: 7.938 kB / 0.5065 GB, free: 15.37 MB / 394.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001077/0.471, allocations: 387.1 kB / 0.5068 GB, free: 15.01 MB / 394.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001832/0.4728, allocations: 1.446 MB / 0.5082 GB, free: 13.55 MB / 394.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04101/0.5138, allocations: 26.04 MB / 0.5337 GB, free: 3.488 MB / 410.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.38/0.8938, allocations: 60.26 MB / 0.5925 GB, free: 124.4 MB / 442.8 MB Notification: Performance of preOpt comSubExp (simulation): time 0.009091/0.9029, allocations: 4.392 MB / 0.5968 GB, free: 122.6 MB / 442.8 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.005042/0.908, allocations: 2.578 MB / 0.5993 GB, free: 121.6 MB / 442.8 MB Notification: Performance of preOpt evalFunc (simulation): time 0.02937/0.9373, allocations: 14.88 MB / 0.6138 GB, free: 114.9 MB / 442.8 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.512e-05/0.9374, allocations: 80.03 kB / 0.6139 GB, free: 114.9 MB / 442.8 MB Notification: Performance of pre-optimization done (n=367): time 7.584e-06/0.9374, allocations: 3.938 kB / 0.6139 GB, free: 114.9 MB / 442.8 MB Notification: Performance of matching and sorting (n=488): time 0.1625/1.1, allocations: 44.76 MB / 0.6576 GB, free: 73.42 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 inlineWhenForInitialization (initialization): time 0.004069/1.104, allocations: 1.657 MB / 0.6592 GB, free: 71.7 MB / 442.8 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006146/1.11, allocations: 5.274 MB / 0.6644 GB, free: 66.5 MB / 442.8 MB Notification: Performance of collectPreVariables (initialization): time 0.001743/1.112, allocations: 105.7 kB / 0.6645 GB, free: 66.39 MB / 442.8 MB Notification: Performance of collectInitialEqns (initialization): time 0.002854/1.115, allocations: 5.58 MB / 0.67 GB, free: 61.34 MB / 442.8 MB Notification: Performance of collectInitialBindings (initialization): time 0.002764/1.117, allocations: 1.828 MB / 0.6717 GB, free: 59.54 MB / 442.8 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.003604/1.121, allocations: 1.881 MB / 0.6736 GB, free: 57.64 MB / 442.8 MB Notification: Performance of setup shared object (initialization): time 6.681e-05/1.121, allocations: 480.8 kB / 0.674 GB, free: 57.17 MB / 442.8 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006371/1.127, allocations: 3.549 MB / 0.6775 GB, free: 53.61 MB / 442.8 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007634/1.135, allocations: 6.172 MB / 0.6835 GB, free: 46.39 MB / 442.8 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.02216/1.157, allocations: 13.99 MB / 0.6972 GB, free: 31.38 MB / 442.8 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001147/1.157, allocations: 16 kB / 0.6972 GB, free: 31.37 MB / 442.8 MB Notification: Performance of matching and sorting (n=735) (initialization): time 0.05466/1.212, allocations: 12.46 MB / 0.7094 GB, free: 18.84 MB / 442.8 MB Notification: Performance of prepare postOptimizeDAE: time 8.983e-05/1.212, allocations: 28 kB / 0.7094 GB, free: 18.82 MB / 442.8 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001274/1.212, allocations: 52 kB / 0.7094 GB, free: 18.77 MB / 442.8 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.03309/1.245, allocations: 4.86 MB / 0.7142 GB, free: 13.91 MB / 442.8 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01629/1.262, allocations: 2.575 MB / 0.7167 GB, free: 11.36 MB / 442.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.2065/1.468, allocations: 36.25 MB / 0.7521 GB, free: 105.6 MB / 442.8 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008285/1.476, allocations: 262.4 kB / 0.7524 GB, free: 105.6 MB / 442.8 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003648/1.48, allocations: 1.124 MB / 0.7535 GB, free: 105.6 MB / 442.8 MB Warning: Assuming fixed start value for the following 9 variables: boundaryFore1.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 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 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 boundaryRear.fore.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: 249 * Number of states: 0 () * Number of discrete variables: 8 (substance6.substanceDefinitionVar.SelfClustering,substance6.substanceDefinitionVar.data.phase,solvent.substanceDefinitionVar.SelfClustering,solvent.substanceDefinitionVar.data.phase,substance2.substanceDefinitionVar.SelfClustering,substance2.substanceDefinitionVar.data.phase,substance1.substanceDefinitionVar.SelfClustering,substance1.substanceDefinitionVar.data.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (665): * Single equations (assignments): 647 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 18 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 16 systems {(1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (6,7,44.4%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (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 {(8,24), (6,7)} Notification: Performance of prepare postOptimizeDAE: time 0.006999/1.487, allocations: 1.23 MB / 0.7547 GB, free: 105.5 MB / 442.8 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002924/1.49, allocations: 0.772 MB / 0.7554 GB, free: 105.5 MB / 442.8 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03956/1.53, allocations: 14.5 MB / 0.7696 GB, free: 102.8 MB / 442.8 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.878e-05/1.53, allocations: 42.75 kB / 0.7696 GB, free: 102.8 MB / 442.8 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.953e-05/1.53, allocations: 7.594 kB / 0.7696 GB, free: 102.8 MB / 442.8 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001141/1.53, allocations: 25.59 kB / 0.7696 GB, free: 102.8 MB / 442.8 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.05978/1.59, allocations: 25.73 MB / 0.7948 GB, free: 86.98 MB / 442.8 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.914e-05/1.59, allocations: 14.69 kB / 0.7948 GB, free: 86.96 MB / 442.8 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01012/1.6, allocations: 1.431 MB / 0.7962 GB, free: 85.56 MB / 442.8 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0288/1.629, allocations: 5.053 MB / 0.8011 GB, free: 80.55 MB / 442.8 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0009442/1.63, allocations: 183.8 kB / 0.8013 GB, free: 80.37 MB / 442.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03034/1.66, allocations: 37.57 MB / 0.838 GB, free: 40.96 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 0.003514/1.663, allocations: 1.265 MB / 0.8392 GB, free: 39.68 MB / 442.8 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02933/1.693, allocations: 11.42 MB / 0.8504 GB, free: 28.33 MB / 442.8 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001729/1.694, allocations: 475.6 kB / 0.8508 GB, free: 27.88 MB / 442.8 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.002081/1.697, allocations: 117.8 kB / 0.8509 GB, free: 27.77 MB / 442.8 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004139/1.701, allocations: 120 kB / 0.8511 GB, free: 27.65 MB / 442.8 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001262/1.702, allocations: 447.2 kB / 0.8515 GB, free: 27.21 MB / 442.8 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005145/1.702, allocations: 283.9 kB / 0.8517 GB, free: 26.94 MB / 442.8 MB Notification: Performance of sorting global known variables: time 0.007022/1.709, allocations: 4.808 MB / 0.8564 GB, free: 22.15 MB / 442.8 MB Notification: Performance of sort global known variables: time 2.8e-07/1.709, allocations: 0 / 0.8564 GB, free: 22.15 MB / 442.8 MB Notification: Performance of remove unused functions: time 0.01003/1.719, allocations: 2.341 MB / 0.8587 GB, free: 19.84 MB / 442.8 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 50 * Number of states: 19 (boundaryRear.fore.n_flow,substance.logm,boundaryRear1.fore.n_flow,substance3.logm,boundaryFore2.rear.n_flow,substance1.logm,boundaryFore1.rear.n_flow,$STATESET1.x,substance2.logm,boundaryFore.rear.n_flow,boundaryRear2.fore.n_flow,substance4.logm,boundaryRear3.fore.n_flow,substance5.logm,boundaryFore3.rear.n_flow,solvent.logm,substance6.logm,boundaryRear4.fore.n_flow,substance7.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 (383): * Single equations (assignments): 365 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 18 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 16 systems {(1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (6,7,44.4%), (1,1,100.0%), (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 {(7,26), (7,16)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001395/1.721, allocations: 0.5257 MB / 0.8592 GB, free: 19.41 MB / 442.8 MB Notification: Performance of simCode: created initialization part: time 0.01865/1.74, allocations: 10.54 MB / 0.8695 GB, free: 8.57 MB / 442.8 MB Notification: Performance of simCode: created event and clocks part: time 1.961e-05/1.74, allocations: 4 kB / 0.8695 GB, free: 8.566 MB / 442.8 MB Notification: Performance of simCode: created simulation system equations: time 0.009872/1.749, allocations: 5.93 MB / 0.8753 GB, free: 2.332 MB / 442.8 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007938/1.757, allocations: 1.532 MB / 0.8768 GB, free: 0.8672 MB / 442.8 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:4687:9-4687:59:writable] Error: Internal error function createStateSetsSets failed. [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:848:5-848:146:writable] Error: Internal error function createSimCode failed [Transformation from optimised DAE to simulation code structure failed] " [Timeout remaining time 658] [Calling sys.exit(0), Time elapsed: 4.098085067002103]