Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.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 0.001396/0.001396, allocations: 80.39 kB / 21.19 MB, free: 3.383 MB / 18.57 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 0.001427/0.001427, allocations: 165 kB / 24.56 MB, free: 16 kB / 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 / 205 MB, free: 5.188 MB / 186.7 MB
"
[Timeout remaining time 179]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo): time 0.5994/0.5994, allocations: 88.07 MB / 349.6 MB, free: 14.2 MB / 330.7 MB
"
[Timeout remaining time 179]
Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 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(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="der.heatcapacitor.[0-9,]+..T.|fixedtemperature.port.Q_flow|heatcapacitor.[0-9,]+..T|heatcapacitor.[0-9,]+..der_T|heatcapacitor.[0-9,]+..port.Q_flow|heatcapacitor.[0-9,]+..port.T|thermalconductor.[0-9,]+..Q_flow|thermalconductor.[0-9,]+..dT|thermalconductor.[0-9,]+..port_a.Q_flow|thermalconductor.[0-9,]+..port_a.T|thermalconductor.[0-9,]+..port_b.Q_flow|thermalconductor.[0-9,]+..port_b.T|time",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10")
translateModel(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="der.heatcapacitor.[0-9,]+..T.|fixedtemperature.port.Q_flow|heatcapacitor.[0-9,]+..T|heatcapacitor.[0-9,]+..der_T|heatcapacitor.[0-9,]+..port.Q_flow|heatcapacitor.[0-9,]+..port.T|thermalconductor.[0-9,]+..Q_flow|thermalconductor.[0-9,]+..dT|thermalconductor.[0-9,]+..port_a.Q_flow|thermalconductor.[0-9,]+..port_a.T|thermalconductor.[0-9,]+..port_b.Q_flow|thermalconductor.[0-9,]+..port_b.T|time",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 1.563e-06/1.563e-06, allocations: 0 / 451.7 MB, free: 33.3 MB / 410.8 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.512e-05/1.668e-05, allocations: 6.312 kB / 451.7 MB, free: 33.3 MB / 410.8 MB
Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10): time 0.001676/0.001693, allocations: 1.642 MB / 453.3 MB, free: 32.2 MB / 410.8 MB
Notification: Performance of NFInst.instExpressions: time 0.000254/0.001947, allocations: 77 kB / 453.4 MB, free: 32.14 MB / 410.8 MB
Notification: Performance of NFInst.updateImplicitVariability: time 5.61e-05/0.002003, allocations: 2.344 kB / 453.4 MB, free: 32.14 MB / 410.8 MB
Notification: Performance of NFTyping.typeComponents: time 0.0001284/0.002132, allocations: 13.88 kB / 453.4 MB, free: 32.13 MB / 410.8 MB
Notification: Performance of NFTyping.typeBindings: time 5.923e-05/0.002191, allocations: 29.12 kB / 453.5 MB, free: 32.11 MB / 410.8 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0001872/0.002378, allocations: 19.45 kB / 453.5 MB, free: 32.11 MB / 410.8 MB
Notification: Performance of NFFlatten.flatten: time 0.0003339/0.002712, allocations: 0.5863 MB / 454.1 MB, free: 31.82 MB / 410.8 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.0002131/0.002925, allocations: 144.2 kB / 454.2 MB, free: 31.75 MB / 410.8 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.0001869/0.003112, allocations: 306 kB / 454.5 MB, free: 31.65 MB / 410.8 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.000188/0.0033, allocations: 227.3 kB / 454.7 MB, free: 31.56 MB / 410.8 MB
Notification: Performance of NFPackage.collectConstants: time 5.186e-05/0.003352, allocations: 40.56 kB / 454.8 MB, free: 31.56 MB / 410.8 MB
Notification: Performance of NFFlatten.collectFunctions: time 5.108e-05/0.003403, allocations: 39.44 kB / 454.8 MB, free: 31.56 MB / 410.8 MB
Notification: Performance of NFScalarize.scalarize: time 5.049e-05/0.003453, allocations: 100.2 kB / 454.9 MB, free: 31.5 MB / 410.8 MB
Notification: Performance of NFVerifyModel.verify: time 0.0001176/0.003571, allocations: 170.2 kB / 455.1 MB, free: 31.44 MB / 410.8 MB
Notification: Performance of NFConvertDAE.convert: time 0.0002647/0.003835, allocations: 369.4 kB / 455.4 MB, free: 31.3 MB / 410.8 MB
Notification: Performance of FrontEnd - DAE generated: time 2.625e-06/0.003838, allocations: 0 / 455.4 MB, free: 31.3 MB / 410.8 MB
Notification: Performance of FrontEnd: time 1.062e-06/0.003839, allocations: 0 / 455.4 MB, free: 31.3 MB / 410.8 MB
Notification: Performance of Transformations before backend: time 6.171e-06/0.003845, allocations: 0 / 455.4 MB, free: 31.3 MB / 410.8 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 92
 * Number of variables: 92
Notification: Performance of Generate backend data structure: time 0.000742/0.004587, allocations: 0.7541 MB / 456.2 MB, free: 30.75 MB / 410.8 MB
Notification: Performance of prepare preOptimizeDAE: time 3.952e-05/0.004627, allocations: 8.656 kB / 456.2 MB, free: 30.75 MB / 410.8 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 8.951e-05/0.004716, allocations: 73.23 kB / 456.3 MB, free: 30.71 MB / 410.8 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002491/0.004966, allocations: 255.8 kB / 456.5 MB, free: 30.52 MB / 410.8 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.206e-05/0.004988, allocations: 27.66 kB / 456.5 MB, free: 30.51 MB / 410.8 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 5.85e-05/0.005046, allocations: 45.05 kB / 456.6 MB, free: 30.49 MB / 410.8 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002944/0.005341, allocations: 246.5 kB / 456.8 MB, free: 30.39 MB / 410.8 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.514e-05/0.005356, allocations: 192 / 456.8 MB, free: 30.39 MB / 410.8 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.342e-05/0.005379, allocations: 15.31 kB / 456.8 MB, free: 30.38 MB / 410.8 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.244e-05/0.005392, allocations: 9.562 kB / 456.8 MB, free: 30.38 MB / 410.8 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002412/0.005633, allocations: 171.7 kB / 457 MB, free: 30.36 MB / 410.8 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0009823/0.006615, allocations: 0.8887 MB / 457.9 MB, free: 29.83 MB / 410.8 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.000505/0.00712, allocations: 361 kB / 458.3 MB, free: 29.7 MB / 410.8 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001528/0.007273, allocations: 135.3 kB / 458.4 MB, free: 29.66 MB / 410.8 MB
Notification: Performance of preOpt evalFunc (simulation): time 1.586e-05/0.007289, allocations: 4.906 kB / 458.4 MB, free: 29.66 MB / 410.8 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.118e-05/0.00731, allocations: 42.73 kB / 458.4 MB, free: 29.61 MB / 410.8 MB
Notification: Performance of pre-optimization done (n=44): time 1.874e-06/0.007312, allocations: 0 / 458.4 MB, free: 29.61 MB / 410.8 MB
Notification: Performance of matching and sorting (n=44): time 0.0004085/0.00772, allocations: 309.4 kB / 458.7 MB, free: 29.5 MB / 410.8 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.49e-05/0.007745, allocations: 60.83 kB / 458.8 MB, free: 29.44 MB / 410.8 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001215/0.007867, allocations: 260.2 kB / 459 MB, free: 29.24 MB / 410.8 MB
Notification: Performance of collectPreVariables (initialization): time 1.522e-05/0.007882, allocations: 32.02 kB / 459.1 MB, free: 29.21 MB / 410.8 MB
Notification: Performance of collectInitialEqns (initialization): time 6.448e-05/0.007946, allocations: 222.3 kB / 459.3 MB, free: 29.02 MB / 410.8 MB
Notification: Performance of collectInitialBindings (initialization): time 7.581e-05/0.008022, allocations: 171.7 kB / 459.5 MB, free: 28.88 MB / 410.8 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 7.087e-05/0.008093, allocations: 94.08 kB / 459.6 MB, free: 28.82 MB / 410.8 MB
Notification: Performance of setup shared object (initialization): time 7.014e-05/0.008163, allocations: 0.5235 MB / 460.1 MB, free: 28.31 MB / 410.8 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 9.273e-05/0.008256, allocations: 59.53 kB / 460.1 MB, free: 28.3 MB / 410.8 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 8.352e-05/0.008339, allocations: 61.75 kB / 460.2 MB, free: 28.29 MB / 410.8 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0002088/0.008548, allocations: 190.1 kB / 460.4 MB, free: 28.21 MB / 410.8 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.455e-06/0.008551, allocations: 3.938 kB / 460.4 MB, free: 28.21 MB / 410.8 MB
Notification: Performance of matching and sorting (n=53) (initialization): time 0.0002759/0.008827, allocations: 279.3 kB / 460.7 MB, free: 28.1 MB / 410.8 MB
Notification: Performance of prepare postOptimizeDAE: time 1.363e-05/0.00884, allocations: 5.562 kB / 460.7 MB, free: 28.1 MB / 410.8 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.29e-06/0.008846, allocations: 0 / 460.7 MB, free: 28.1 MB / 410.8 MB
Notification: Performance of postOpt tearingSystem (initialization): time 1.852e-05/0.008864, allocations: 0 / 460.7 MB, free: 28.1 MB / 410.8 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002291/0.009093, allocations: 124.1 kB / 460.8 MB, free: 28.09 MB / 410.8 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.025e-06/0.009101, allocations: 2.844 kB / 460.8 MB, free: 28.09 MB / 410.8 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 9.452e-05/0.009196, allocations: 42.36 kB / 460.8 MB, free: 28.06 MB / 410.8 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.326e-05/0.009209, allocations: 8.25 kB / 460.8 MB, free: 28.06 MB / 410.8 MB
Notification: Model statistics after passing the back-end for initialization:
 * 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 initialization (53):
 * Single equations (assignments): 53
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 7.456e-05/0.009284, allocations: 185.8 kB / 461 MB, free: 27.88 MB / 410.8 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 4.488e-05/0.009328, allocations: 42.08 kB / 461.1 MB, free: 27.86 MB / 410.8 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.939e-05/0.009378, allocations: 41.84 kB / 461.1 MB, free: 27.82 MB / 410.8 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.006e-06/0.009381, allocations: 5.156 kB / 461.1 MB, free: 27.82 MB / 410.8 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.537e-06/0.009384, allocations: 0 / 461.1 MB, free: 27.82 MB / 410.8 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.691e-06/0.00939, allocations: 6.016 kB / 461.1 MB, free: 27.82 MB / 410.8 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002252/0.009615, allocations: 303.8 kB / 461.4 MB, free: 27.6 MB / 410.8 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.513e-06/0.009617, allocations: 0 / 461.4 MB, free: 27.6 MB / 410.8 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002546/0.009871, allocations: 118.7 kB / 461.5 MB, free: 27.59 MB / 410.8 MB
Notification: Performance of postOpt tearingSystem (simulation): time 3.487e-06/0.009875, allocations: 6.75 kB / 461.5 MB, free: 27.59 MB / 410.8 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.934e-05/0.009904, allocations: 14.05 kB / 461.5 MB, free: 27.58 MB / 410.8 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.264e-06/0.009906, allocations: 6.719 kB / 461.6 MB, free: 27.57 MB / 410.8 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.01e-07/0.009907, allocations: 0 / 461.6 MB, free: 27.57 MB / 410.8 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003993/0.01031, allocations: 0.4956 MB / 462 MB, free: 27.3 MB / 410.8 MB
Notification: Performance of postOpt removeConstants (simulation): time 2.794e-05/0.01033, allocations: 39.86 kB / 462.1 MB, free: 27.27 MB / 410.8 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.747e-05/0.01036, allocations: 14 kB / 462.1 MB, free: 27.26 MB / 410.8 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.051e-05/0.01045, allocations: 23.33 kB / 462.1 MB, free: 27.25 MB / 410.8 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 3.042e-05/0.01048, allocations: 21.84 kB / 462.1 MB, free: 27.25 MB / 410.8 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.099e-05/0.01049, allocations: 16.72 kB / 462.2 MB, free: 27.25 MB / 410.8 MB
Notification: Performance of sorting global known variables: time 6.672e-05/0.01056, allocations: 181.1 kB / 462.3 MB, free: 27.12 MB / 410.8 MB
Notification: Performance of sort global known variables: time 5e-08/0.01056, allocations: 0 / 462.3 MB, free: 27.12 MB / 410.8 MB
Notification: Performance of remove unused functions: time 0.0002091/0.01077, allocations: 122 kB / 462.5 MB, free: 27.09 MB / 410.8 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 9 (heatcapacitor[1].T,heatcapacitor[2].T,heatcapacitor[3].T,heatcapacitor[4].T,heatcapacitor[5].T,heatcapacitor[6].T,heatcapacitor[7].T,heatcapacitor[8].T,heatcapacitor[9].T)
 * 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 (44):
 * Single equations (assignments): 44
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 7.145e-05/0.01084, allocations: 111.3 kB / 462.6 MB, free: 26.99 MB / 410.8 MB
Notification: Performance of simCode: created initialization part: time 0.0002603/0.0111, allocations: 220.9 kB / 462.8 MB, free: 26.94 MB / 410.8 MB
Notification: Performance of simCode: created event and clocks part: time 1.663e-06/0.0111, allocations: 0 / 462.8 MB, free: 26.94 MB / 410.8 MB
Notification: Performance of simCode: created simulation system equations: time 0.0001058/0.01121, allocations: 137 kB / 462.9 MB, free: 26.9 MB / 410.8 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002404/0.01145, allocations: 40.3 kB / 463 MB, free: 26.88 MB / 410.8 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001222/0.01267, allocations: 1.061 MB / 464 MB, free: 26.23 MB / 410.8 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 6.681e-05/0.01274, allocations: 143.3 kB / 464.2 MB, free: 26.15 MB / 410.8 MB
Notification: Performance of simCode: alias equations: time 0.0001363/0.01287, allocations: 119.2 kB / 464.3 MB, free: 26.14 MB / 410.8 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 6.044e-05/0.01293, allocations: 30.94 kB / 464.3 MB, free: 26.13 MB / 410.8 MB
Notification: Performance of SimCode: time 5.71e-07/0.01294, allocations: 0 / 464.3 MB, free: 26.13 MB / 410.8 MB
Notification: Performance of Templates: time 0.004921/0.01786, allocations: 3.177 MB / 467.5 MB, free: 25.79 MB / 410.8 MB
"
[Timeout remaining time 300]
make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.makefile [Timeout 300]
(rm -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10 -abortSlowSimulation -alarm=240  -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10.pipe 2>&1) [Timeout 240]
diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_Modelica_N_10_res.mat","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 300]
Reference file matches
[Calling sys.exit(0), Time elapsed: 3.5112961032427847]