Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.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 0.001557/0.001557, 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 0.001842/0.001842, allocations: 161.7 kB / 22.76 MB, free: 1.68 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 1.527/1.527, allocations: 177.1 MB / 203.1 MB, free: 5.594 MB / 186.7 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.1.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.1.0/package.mo): time 0.02979/0.02979, allocations: 4.227 MB / 263.8 MB, free: 8.957 MB / 250.7 MB " [Timeout remaining time 180] Using package PhotoVoltaics with version 2.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PhotoVoltaics 2.1.0/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(PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic,tolerance=1e-06,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic") translateModel(PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic,tolerance=1e-06,outputFormat="empty",numberOfIntervals=10000,variableFilter="",fileNamePrefix="PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.673e-06/1.673e-06, allocations: 0 / 338.3 MB, free: 10.67 MB / 266.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.525e-05/2.692e-05, allocations: 2.312 kB / 338.3 MB, free: 10.66 MB / 266.7 MB Notification: Performance of NFInst.instantiate(PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic): time 0.00379/0.003817, allocations: 3.582 MB / 341.8 MB, free: 7.059 MB / 266.7 MB Notification: Performance of NFInst.instExpressions: time 0.00209/0.005907, allocations: 1.421 MB / 343.3 MB, free: 5.633 MB / 266.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002742/0.006181, allocations: 11.94 kB / 343.3 MB, free: 5.621 MB / 266.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0005504/0.006732, allocations: 226.5 kB / 343.5 MB, free: 5.398 MB / 266.7 MB Notification: Performance of NFTyping.typeBindings: time 0.0004058/0.007137, allocations: 198.5 kB / 343.7 MB, free: 5.203 MB / 266.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.0003864/0.007524, allocations: 227.5 kB / 343.9 MB, free: 4.98 MB / 266.7 MB Notification: Performance of NFFlatten.flatten: time 0.0004985/0.008022, allocations: 0.7978 MB / 344.7 MB, free: 4.18 MB / 266.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0002179/0.00824, allocations: 110.4 kB / 344.8 MB, free: 4.066 MB / 266.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0003289/0.008569, allocations: 427 kB / 345.2 MB, free: 3.648 MB / 266.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002909/0.00886, allocations: 271.2 kB / 345.5 MB, free: 3.383 MB / 266.7 MB Notification: Performance of NFPackage.collectConstants: time 9.113e-05/0.008951, allocations: 76 kB / 345.6 MB, free: 3.309 MB / 266.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001693/0.009121, allocations: 87.98 kB / 345.7 MB, free: 3.223 MB / 266.7 MB Notification: Performance of NFScalarize.scalarize: time 9.137e-05/0.009212, allocations: 151.4 kB / 345.8 MB, free: 3.074 MB / 266.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0001642/0.009376, allocations: 215.5 kB / 346 MB, free: 2.863 MB / 266.7 MB Notification: Performance of NFConvertDAE.convert: time 0.0006035/0.00998, allocations: 0.7789 MB / 346.8 MB, free: 2.082 MB / 266.7 MB Notification: Performance of FrontEnd - DAE generated: time 5.28e-06/0.009985, allocations: 0 / 346.8 MB, free: 2.082 MB / 266.7 MB Notification: Performance of FrontEnd: time 1.212e-06/0.009986, allocations: 0 / 346.8 MB, free: 2.082 MB / 266.7 MB Notification: Performance of Transformations before backend: time 8.475e-06/0.009995, allocations: 4 kB / 346.8 MB, free: 2.078 MB / 266.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 79 * Number of variables: 79 Notification: Performance of Generate backend data structure: time 0.002299/0.01229, allocations: 0.9503 MB / 347.7 MB, free: 1.09 MB / 266.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.559e-05/0.01233, allocations: 8.031 kB / 347.8 MB, free: 1.082 MB / 266.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000159/0.01249, allocations: 92.5 kB / 347.8 MB, free: 0.9922 MB / 266.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001152/0.01364, allocations: 0.5221 MB / 348.4 MB, free: 452 kB / 266.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.296e-05/0.01367, allocations: 21.03 kB / 348.4 MB, free: 432 kB / 266.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 5.656e-05/0.01373, allocations: 36.38 kB / 348.4 MB, free: 396 kB / 266.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000943/0.01467, allocations: 499 kB / 348.9 MB, free: 15.86 MB / 282.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.318e-05/0.01469, allocations: 4 kB / 348.9 MB, free: 15.86 MB / 282.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.339e-05/0.01473, allocations: 8 kB / 348.9 MB, free: 15.85 MB / 282.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.008e-05/0.01474, allocations: 8 kB / 348.9 MB, free: 15.84 MB / 282.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001207/0.01595, allocations: 406.3 kB / 349.3 MB, free: 15.45 MB / 282.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003108/0.01905, allocations: 1.355 MB / 350.7 MB, free: 14.04 MB / 282.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001444/0.0205, allocations: 410.6 kB / 351.1 MB, free: 13.62 MB / 282.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005913/0.02109, allocations: 179 kB / 351.3 MB, free: 13.45 MB / 282.7 MB Notification: Performance of preOpt evalFunc (simulation): time 3.833e-05/0.02113, allocations: 11.97 kB / 351.3 MB, free: 13.44 MB / 282.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007441/0.02187, allocations: 283.1 kB / 351.5 MB, free: 13.14 MB / 282.7 MB Notification: Performance of pre-optimization done (n=25): time 1.333e-06/0.02187, allocations: 0 / 351.5 MB, free: 13.14 MB / 282.7 MB Notification: Performance of matching and sorting (n=25): time 0.003106/0.02498, allocations: 0.7065 MB / 352.3 MB, free: 12.42 MB / 282.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 8.195e-05/0.02506, allocations: 81.11 kB / 352.3 MB, free: 12.32 MB / 282.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006719/0.02573, allocations: 437.8 kB / 352.8 MB, free: 11.89 MB / 282.7 MB Notification: Performance of collectPreVariables (initialization): time 5.611e-05/0.02579, allocations: 29.7 kB / 352.8 MB, free: 11.86 MB / 282.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002714/0.02606, allocations: 264.3 kB / 353 MB, free: 11.59 MB / 282.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001015/0.02616, allocations: 79.34 kB / 353.1 MB, free: 11.52 MB / 282.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001649/0.02633, allocations: 70 kB / 353.2 MB, free: 11.44 MB / 282.7 MB Notification: Performance of setup shared object (initialization): time 0.0003008/0.02663, allocations: 354.8 kB / 353.5 MB, free: 11.09 MB / 282.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006241/0.02725, allocations: 219.7 kB / 353.8 MB, free: 10.86 MB / 282.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006519/0.0279, allocations: 280.9 kB / 354 MB, free: 10.56 MB / 282.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001124/0.02903, allocations: 400.3 kB / 354.4 MB, free: 10.15 MB / 282.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.507e-06/0.02903, allocations: 0 / 354.4 MB, free: 10.15 MB / 282.7 MB Notification: Performance of matching and sorting (n=40) (initialization): time 0.002129/0.03116, allocations: 0.6694 MB / 355.1 MB, free: 9.457 MB / 282.7 MB Notification: Performance of prepare postOptimizeDAE: time 4.433e-05/0.03121, allocations: 29.7 kB / 355.1 MB, free: 9.422 MB / 282.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.066e-05/0.03122, allocations: 4 kB / 355.1 MB, free: 9.418 MB / 282.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009261/0.03214, allocations: 241.5 kB / 355.4 MB, free: 9.176 MB / 282.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004089/0.03255, allocations: 67.94 kB / 355.4 MB, free: 9.109 MB / 282.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002604/0.03516, allocations: 2.09 MB / 357.5 MB, free: 6.887 MB / 282.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005687/0.03572, allocations: 67.72 kB / 357.6 MB, free: 6.82 MB / 282.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.029e-05/0.03576, allocations: 12.14 kB / 357.6 MB, free: 6.809 MB / 282.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007296/0.03649, allocations: 333.7 kB / 357.9 MB, free: 6.473 MB / 282.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006396/0.03713, allocations: 276.1 kB / 358.2 MB, free: 6.176 MB / 282.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001292/0.03843, allocations: 384.9 kB / 358.6 MB, free: 5.781 MB / 282.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.593e-06/0.03843, allocations: 4 kB / 358.6 MB, free: 5.777 MB / 282.7 MB Notification: Performance of matching and sorting (n=40) (initialization_lambda0): time 0.001863/0.04029, allocations: 0.662 MB / 359.2 MB, free: 5.09 MB / 282.7 MB Notification: Performance of prepare postOptimizeDAE: time 4.364e-05/0.04033, allocations: 29.7 kB / 359.3 MB, free: 5.055 MB / 282.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.604e-06/0.04034, allocations: 4 kB / 359.3 MB, free: 5.051 MB / 282.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008106/0.04115, allocations: 237.7 kB / 359.5 MB, free: 4.812 MB / 282.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003835/0.04154, allocations: 75.88 kB / 359.6 MB, free: 4.738 MB / 282.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002539/0.04407, allocations: 2.078 MB / 361.6 MB, free: 2.531 MB / 282.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006078/0.04468, allocations: 71.72 kB / 361.7 MB, free: 2.461 MB / 282.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.595e-05/0.04472, allocations: 8 kB / 361.7 MB, free: 2.453 MB / 282.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 6 (triangleAndStep.trapezoid.count,$PRE.triangleAndStep.trapezoid.count,triangleAndStep.trapezoid.T_start,$PRE.triangleAndStep.trapezoid.T_start,triangleAndStep.realToInteger.y,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (36): * Single equations (assignments): 33 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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 {2} * 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): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0002214/0.04494, allocations: 208.8 kB / 361.9 MB, free: 2.242 MB / 282.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001026/0.04504, allocations: 51.72 kB / 362 MB, free: 2.191 MB / 282.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001231/0.04517, allocations: 48.02 kB / 362 MB, free: 2.145 MB / 282.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.849e-06/0.04517, allocations: 4 kB / 362 MB, free: 2.141 MB / 282.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.495e-06/0.04517, allocations: 0 / 362 MB, free: 2.141 MB / 282.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.764e-06/0.04518, allocations: 3.984 kB / 362 MB, free: 2.137 MB / 282.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001964/0.04714, allocations: 0.8311 MB / 362.9 MB, free: 1.262 MB / 282.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.116e-06/0.04715, allocations: 0 / 362.9 MB, free: 1.262 MB / 282.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003046/0.04745, allocations: 67.91 kB / 362.9 MB, free: 1.195 MB / 282.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003946/0.04785, allocations: 164.7 kB / 363.1 MB, free: 1.031 MB / 282.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.338e-05/0.04788, allocations: 12 kB / 363.1 MB, free: 1.02 MB / 282.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007971/0.04868, allocations: 0.6422 MB / 363.7 MB, free: 360 kB / 282.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.673e-06/0.04868, allocations: 3.938 kB / 363.7 MB, free: 356 kB / 282.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001638/0.05032, allocations: 0.5717 MB / 364.3 MB, free: 15.75 MB / 298.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0002126/0.05053, allocations: 75.62 kB / 364.4 MB, free: 15.68 MB / 298.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.311e-05/0.05059, allocations: 8 kB / 364.4 MB, free: 15.67 MB / 298.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004408/0.05103, allocations: 43.94 kB / 364.4 MB, free: 15.63 MB / 298.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000116/0.05115, allocations: 27.95 kB / 364.5 MB, free: 15.6 MB / 298.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.064e-05/0.05118, allocations: 12 kB / 364.5 MB, free: 15.59 MB / 298.7 MB Notification: Performance of sorting global known variables: time 0.0004539/0.05163, allocations: 311.1 kB / 364.8 MB, free: 15.29 MB / 298.7 MB Notification: Performance of sort global known variables: time 6e-08/0.05163, allocations: 0 / 364.8 MB, free: 15.29 MB / 298.7 MB Notification: Performance of remove unused functions: time 0.0007018/0.05234, allocations: 199.5 kB / 365 MB, free: 15.09 MB / 298.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,triangleAndStep.realToInteger.y,triangleAndStep.trapezoid.T_start,triangleAndStep.trapezoid.count) * Number of discrete states: 1 (triangleAndStep.trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (23): * Single equations (assignments): 20 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.0002143/0.05255, allocations: 107.2 kB / 365.1 MB, free: 14.97 MB / 298.7 MB Notification: Performance of simCode: created initialization part: time 0.003134/0.05569, allocations: 1.07 MB / 366.2 MB, free: 13.84 MB / 298.7 MB Notification: Performance of simCode: created event and clocks part: time 2.866e-06/0.05569, allocations: 0 / 366.2 MB, free: 13.84 MB / 298.7 MB Notification: Performance of simCode: created simulation system equations: time 0.000608/0.0563, allocations: 179.8 kB / 366.3 MB, free: 13.66 MB / 298.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006721/0.05697, allocations: 108.3 kB / 366.4 MB, free: 13.56 MB / 298.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001763/0.05873, allocations: 0.8008 MB / 367.2 MB, free: 12.73 MB / 298.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002541/0.05898, allocations: 224.5 kB / 367.5 MB, free: 12.49 MB / 298.7 MB Notification: Performance of simCode: alias equations: time 0.0002863/0.05927, allocations: 63.31 kB / 367.5 MB, free: 12.43 MB / 298.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001448/0.05942, allocations: 36.5 kB / 367.6 MB, free: 12.39 MB / 298.7 MB Notification: Performance of SimCode: time 1.563e-06/0.05942, allocations: 0 / 367.6 MB, free: 12.39 MB / 298.7 MB Notification: Performance of Templates: time 0.01624/0.07566, allocations: 7.891 MB / 375.4 MB, free: 4.609 MB / 298.7 MB " [Timeout remaining time 660] make -j1 -f PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.makefile [Timeout 660] (rm -f PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.pipe ; mkfifo PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.pipe ; head -c 1048576 < PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.pipe >> ../files/PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.sim & ./PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic -jacobian=coloredNumerical -nls=newton -s=dassl -lv=LOG_STATS -abortSlowSimulation -alarm=480 -lv LOG_STATS > PhotoVoltaics_PhotoVoltaics.Examples.SimpleCellIrradianceCharacteristic.pipe 2>&1) [Timeout 480] [Calling sys.exit(0), Time elapsed: 4.900199229014106]