Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo): time 0.815/0.815, allocations: 111.6 MB / 131 MB, free: 5.074 MB / 122.7 MB " [Timeout remaining time 179] Using package ThermoSysPro with version 4.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/package.mo) Running command: translateModel(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases") translateModel(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.164e-06/2.164e-06, allocations: 0 / 175.7 MB, free: 9.484 MB / 170.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.357e-05/2.574e-05, allocations: 2.312 kB / 175.7 MB, free: 9.48 MB / 170.7 MB Notification: Automatically loaded package Complex 4.1.0 due to uses annotation from Modelica. Notification: Automatically loaded package ModelicaServices 4.1.0 due to uses annotation from Modelica. Notification: Automatically loaded package Modelica 4.1.0 due to usage. Notification: Performance of NFInst.instantiate(ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases): time 1.74/1.74, allocations: 255.3 MB / 431 MB, free: 15.85 MB / 394.7 MB Notification: Performance of NFInst.instExpressions: time 0.405/2.145, allocations: 162.1 MB / 0.5792 GB, free: 14.43 MB / 0.4948 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002124/2.145, allocations: 4 kB / 0.5792 GB, free: 14.43 MB / 0.4948 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/WaterSteam/BoundaryConditions/Sink.mo:10:3-11:80:writable] Warning: Connector C is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:34:3-35:78:writable] Warning: Connector Cws2 is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:36:3-37:80:writable] Warning: Connector Cws1 is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:38:3-39:78:writable] Warning: Connector Cfg1 is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/MultiFluids/HeatExchangers/StaticExchangerWaterSteamFlueGases.mo:40:3-41:80:writable] Warning: Connector Cfg2 is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/WaterSteam/BoundaryConditions/SourcePQ.mo:16:3-17:78:writable] Warning: Connector C is not balanced: The number of potential variables (4) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/FlueGases/BoundaryConditions/SourcePQ.mo:15:3-16:78:writable] Warning: Connector C is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/FlueGases/BoundaryConditions/Sink.mo:12:3-13:80:writable] Warning: Connector C is not balanced: The number of potential variables (7) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0004384/2.146, allocations: 119.1 kB / 0.5793 GB, free: 14.31 MB / 0.4948 GB Notification: Performance of NFTyping.typeBindings: time 0.0003331/2.146, allocations: 174.6 kB / 0.5795 GB, free: 14.14 MB / 0.4948 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:470:9-470:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:525:9-525:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro master/Properties/WaterSteam/IF97_packages.mo:708:9-708:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. Notification: Performance of NFTyping.typeClassSections: time 0.01634/2.162, allocations: 6.105 MB / 0.5855 GB, free: 8.027 MB / 0.4948 GB Notification: Performance of NFFlatten.flatten: time 0.0008218/2.163, allocations: 0.5663 MB / 0.586 GB, free: 7.461 MB / 0.4948 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003222/2.163, allocations: 201.2 kB / 0.5862 GB, free: 7.266 MB / 0.4948 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004273/2.164, allocations: 339.2 kB / 0.5865 GB, free: 6.934 MB / 0.4948 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002503/2.164, allocations: 159.5 kB / 0.5867 GB, free: 6.777 MB / 0.4948 GB Notification: Performance of NFPackage.collectConstants: time 6.521e-05/2.164, allocations: 44 kB / 0.5867 GB, free: 6.734 MB / 0.4948 GB Notification: Performance of NFFlatten.collectFunctions: time 0.02416/2.188, allocations: 12.14 MB / 0.5986 GB, free: 10.58 MB / 0.5105 GB Notification: Performance of NFScalarize.scalarize: time 0.0001448/2.189, allocations: 91.61 kB / 0.5987 GB, free: 10.49 MB / 0.5105 GB Notification: Performance of NFVerifyModel.verify: time 0.0002986/2.189, allocations: 163.7 kB / 0.5988 GB, free: 10.33 MB / 0.5105 GB Notification: Performance of NFConvertDAE.convert: time 0.01619/2.205, allocations: 7.741 MB / 0.6064 GB, free: 2.57 MB / 0.5105 GB Notification: Performance of FrontEnd - DAE generated: time 5.129e-06/2.205, allocations: 0 / 0.6064 GB, free: 2.57 MB / 0.5105 GB Notification: Performance of FrontEnd: time 1.402e-06/2.205, allocations: 0 / 0.6064 GB, free: 2.57 MB / 0.5105 GB Notification: Performance of Transformations before backend: time 8.306e-06/2.205, allocations: 0 / 0.6064 GB, free: 2.57 MB / 0.5105 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 136 * Number of variables: 136 Notification: Performance of Generate backend data structure: time 0.003456/2.208, allocations: 1.269 MB / 0.6076 GB, free: 1.258 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 3.965e-05/2.209, allocations: 15.98 kB / 0.6076 GB, free: 1.242 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001639/2.209, allocations: 88.61 kB / 0.6077 GB, free: 1.156 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003408/2.209, allocations: 228.2 kB / 0.6079 GB, free: 0.9062 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.444e-05/2.209, allocations: 33.62 kB / 0.608 GB, free: 0.875 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.205e-05/2.209, allocations: 43.94 kB / 0.608 GB, free: 0.832 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008989/2.21, allocations: 0.519 MB / 0.6085 GB, free: 272 kB / 0.5105 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.749e-05/2.21, allocations: 4 kB / 0.6085 GB, free: 268 kB / 0.5105 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.909e-05/2.21, allocations: 16 kB / 0.6085 GB, free: 252 kB / 0.5105 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.943e-05/2.21, allocations: 19.98 kB / 0.6086 GB, free: 232 kB / 0.5105 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006161/2.211, allocations: 291.8 kB / 0.6088 GB, free: 15.94 MB / 0.5261 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 0.003171/2.214, allocations: 2.398 MB / 0.6112 GB, free: 13.47 MB / 0.5261 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003579/2.214, allocations: 143.3 kB / 0.6113 GB, free: 13.32 MB / 0.5261 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001705/2.214, allocations: 76 kB / 0.6114 GB, free: 13.24 MB / 0.5261 GB Notification: Performance of preOpt evalFunc (simulation): time 0.08352/2.298, allocations: 21.17 MB / 0.6321 GB, free: 8.051 MB / 0.5417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.521e-05/2.298, allocations: 41.39 kB / 0.6321 GB, free: 8 MB / 0.5417 GB Notification: Performance of pre-optimization done (n=40): time 1.944e-06/2.298, allocations: 3.938 kB / 0.6321 GB, free: 7.996 MB / 0.5417 GB Notification: Performance of matching and sorting (n=40): time 0.002063/2.3, allocations: 0.5189 MB / 0.6326 GB, free: 7.465 MB / 0.5417 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.679e-05/2.3, allocations: 55.41 kB / 0.6327 GB, free: 7.398 MB / 0.5417 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003614/2.3, allocations: 310.1 kB / 0.633 GB, free: 7.078 MB / 0.5417 GB Notification: Performance of collectPreVariables (initialization): time 2.963e-05/2.301, allocations: 29.7 kB / 0.633 GB, free: 7.043 MB / 0.5417 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002238/2.301, allocations: 275.7 kB / 0.6333 GB, free: 6.766 MB / 0.5417 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001417/2.301, allocations: 150.7 kB / 0.6334 GB, free: 6.617 MB / 0.5417 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003737/2.301, allocations: 95.3 kB / 0.6335 GB, free: 6.516 MB / 0.5417 GB Notification: Performance of setup shared object (initialization): time 0.0003121/2.302, allocations: 0.5196 MB / 0.634 GB, free: 5.984 MB / 0.5417 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002362/2.302, allocations: 72.47 kB / 0.6341 GB, free: 5.914 MB / 0.5417 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003223/2.302, allocations: 203.5 kB / 0.6343 GB, free: 5.672 MB / 0.5417 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005051/2.303, allocations: 312.3 kB / 0.6346 GB, free: 5.32 MB / 0.5417 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.798e-06/2.303, allocations: 0.875 kB / 0.6346 GB, free: 5.32 MB / 0.5417 GB Notification: Performance of matching and sorting (n=53) (initialization): time 0.001093/2.304, allocations: 453.5 kB / 0.635 GB, free: 4.863 MB / 0.5417 GB Notification: Performance of prepare postOptimizeDAE: time 1.628e-05/2.304, allocations: 4 kB / 0.635 GB, free: 4.859 MB / 0.5417 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.659e-06/2.304, allocations: 8.312 kB / 0.635 GB, free: 4.852 MB / 0.5417 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008974/2.305, allocations: 276.2 kB / 0.6353 GB, free: 4.574 MB / 0.5417 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002094/2.305, allocations: 35.98 kB / 0.6353 GB, free: 4.539 MB / 0.5417 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002142/2.307, allocations: 2.696 MB / 0.6379 GB, free: 1.75 MB / 0.5417 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001799/2.307, allocations: 35.67 kB / 0.638 GB, free: 1.715 MB / 0.5417 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.766e-05/2.307, allocations: 14.06 kB / 0.638 GB, free: 1.703 MB / 0.5417 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 8 (Puits_Fumees.C.a,Source_Fumees.C.b,source_Eau.C.b,EchangeurEfficacite.Cfg2.b,EchangeurEfficacite.Cfg1.a,EchangeurEfficacite.Cws1.a,EchangeurEfficacite.Cws2.b,puits_Eau.C.a) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (21): * Single equations (assignments): 17 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems 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): 2 systems {(1,1), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0002215/2.307, allocations: 196.5 kB / 0.6382 GB, free: 1.5 MB / 0.5417 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.8e-05/2.308, allocations: 31.97 kB / 0.6382 GB, free: 1.469 MB / 0.5417 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001135/2.309, allocations: 0.5382 MB / 0.6387 GB, free: 0.918 MB / 0.5417 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0009331/2.31, allocations: 468.6 kB / 0.6392 GB, free: 456 kB / 0.5417 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.277e-06/2.31, allocations: 7.938 kB / 0.6392 GB, free: 448 kB / 0.5417 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.284e-06/2.31, allocations: 3.984 kB / 0.6392 GB, free: 444 kB / 0.5417 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002253/2.312, allocations: 1.271 MB / 0.6404 GB, free: 15.11 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.426e-06/2.312, allocations: 0 / 0.6404 GB, free: 15.11 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004842/2.312, allocations: 63.91 kB / 0.6405 GB, free: 15.05 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004377/2.313, allocations: 179.2 kB / 0.6407 GB, free: 14.86 MB / 0.5573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.3e-05/2.313, allocations: 12.75 kB / 0.6407 GB, free: 14.85 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001989/2.315, allocations: 2.642 MB / 0.6433 GB, free: 12.12 MB / 0.5573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.743e-06/2.315, allocations: 0 / 0.6433 GB, free: 12.12 MB / 0.5573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00112/2.316, allocations: 0.6454 MB / 0.6439 GB, free: 11.45 MB / 0.5573 GB Notification: Performance of postOpt removeConstants (simulation): time 6.665e-05/2.316, allocations: 35.69 kB / 0.6439 GB, free: 11.41 MB / 0.5573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.698e-05/2.316, allocations: 8 kB / 0.6439 GB, free: 11.4 MB / 0.5573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001401/2.316, allocations: 12.25 kB / 0.6439 GB, free: 11.39 MB / 0.5573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.6e-05/2.316, allocations: 35.84 kB / 0.644 GB, free: 11.36 MB / 0.5573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.438e-05/2.316, allocations: 15.98 kB / 0.644 GB, free: 11.34 MB / 0.5573 GB Notification: Performance of sorting global known variables: time 0.0002029/2.316, allocations: 203 kB / 0.6442 GB, free: 11.14 MB / 0.5573 GB Notification: Performance of sort global known variables: time 8e-08/2.316, allocations: 0 / 0.6442 GB, free: 11.14 MB / 0.5573 GB Notification: Performance of remove unused functions: time 0.002494/2.319, allocations: 0.8808 MB / 0.645 GB, free: 10.26 MB / 0.5573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * 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 simulation (38): * Single equations (assignments): 34 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems 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): 2 systems {(1,1), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.003831/2.323, allocations: 1.221 MB / 0.6462 GB, free: 9.027 MB / 0.5573 GB Notification: Performance of simCode: created initialization part: time 0.001089/2.324, allocations: 459.1 kB / 0.6467 GB, free: 8.559 MB / 0.5573 GB Notification: Performance of simCode: created event and clocks part: time 2.625e-06/2.324, allocations: 0 / 0.6467 GB, free: 8.559 MB / 0.5573 GB Notification: Performance of simCode: created simulation system equations: time 0.0005291/2.324, allocations: 218.4 kB / 0.6469 GB, free: 8.34 MB / 0.5573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009743/2.325, allocations: 160.2 kB / 0.647 GB, free: 8.188 MB / 0.5573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001818/2.327, allocations: 0.8641 MB / 0.6479 GB, free: 7.293 MB / 0.5573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003031/2.327, allocations: 259.6 kB / 0.6481 GB, free: 7.008 MB / 0.5573 GB Notification: Performance of simCode: alias equations: time 0.000122/2.328, allocations: 37.88 kB / 0.6482 GB, free: 6.973 MB / 0.5573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.259e-05/2.328, allocations: 32.5 kB / 0.6482 GB, free: 6.941 MB / 0.5573 GB Notification: Performance of SimCode: time 1.202e-06/2.328, allocations: 0 / 0.6482 GB, free: 6.941 MB / 0.5573 GB Notification: Performance of Templates: time 0.05918/2.387, allocations: 35.4 MB / 0.6828 GB, free: 3.664 MB / 0.5886 GB " [Timeout remaining time 657] make -j1 -f ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.makefile [Timeout 660] (rm -f ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe ; mkfifo ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe ; head -c 1048576 < ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe >> ../files/ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.sim & ./ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases -abortSlowSimulation -alarm=240 -lv LOG_STATS > ThermoSysPro_ThermoSysPro.Examples.SimpleExamples.TestStaticExchangerWaterSteamFlueGases.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 8.45759101305157]