Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.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 0.0008857/0.0008857, allocations: 80.39 kB / 20.97 MB, free: 3.574 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 0.001405/0.001405, allocations: 165 kB / 24.28 MB, free: 276 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 0.9003/0.9003, allocations: 177.1 MB / 204.6 MB, free: 5.629 MB / 186.7 MB
"
[Timeout remaining time 179]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180]
"[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo.
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.581/0.581, allocations: 110.3 MB / 371.3 MB, free: 12.53 MB / 346.7 MB
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function.
[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function.
"
[Timeout remaining time 179]
Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative")
translateModel(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative") [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 1.553e-06/1.553e-06, allocations: 0 / 475.3 MB, free: 15.22 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.322e-05/1.477e-05, allocations: 3.516 kB / 475.3 MB, free: 15.22 MB / 410.7 MB
Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative): time 0.002122/0.002136, allocations: 1.494 MB / 476.8 MB, free: 14.22 MB / 410.7 MB
Notification: Performance of NFInst.instExpressions: time 0.003006/0.005142, allocations: 2.821 MB / 479.6 MB, free: 12.46 MB / 410.7 MB
Notification: Performance of NFInst.updateImplicitVariability: time 4.249e-05/0.005185, allocations: 3.125 kB / 479.6 MB, free: 12.46 MB / 410.7 MB
Notification: Performance of NFTyping.typeComponents: time 1.809e-05/0.005203, allocations: 11.23 kB / 479.6 MB, free: 12.46 MB / 410.7 MB
Notification: Performance of NFTyping.typeBindings: time 4.654e-05/0.005249, allocations: 11.86 kB / 479.6 MB, free: 12.45 MB / 410.7 MB
Notification: Performance of NFTyping.typeClassSections: time 0.002179/0.007428, allocations: 1.638 MB / 481.3 MB, free: 11.7 MB / 410.7 MB
Notification: Performance of NFFlatten.flatten: time 5.935e-05/0.007488, allocations: 45.88 kB / 481.3 MB, free: 11.68 MB / 410.7 MB
Notification: Performance of NFFlatten.resolveConnections: time 3.115e-05/0.007519, allocations: 9.828 kB / 481.3 MB, free: 11.68 MB / 410.7 MB
Notification: Performance of NFEvalConstants.evaluate: time 3.085e-05/0.00755, allocations: 23.11 kB / 481.3 MB, free: 11.67 MB / 410.7 MB
Notification: Performance of NFSimplifyModel.simplify: time 1.63e-05/0.007566, allocations: 6.438 kB / 481.3 MB, free: 11.67 MB / 410.7 MB
Notification: Performance of NFPackage.collectConstants: time 9.989e-06/0.007576, allocations: 2.531 kB / 481.4 MB, free: 11.67 MB / 410.7 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.001278/0.008854, allocations: 1.49 MB / 482.8 MB, free: 11.27 MB / 410.7 MB
Notification: Performance of NFScalarize.scalarize: time 1.131e-05/0.008866, allocations: 11.72 kB / 482.9 MB, free: 11.27 MB / 410.7 MB
Notification: Performance of NFVerifyModel.verify: time 1.943e-05/0.008885, allocations: 5.531 kB / 482.9 MB, free: 11.27 MB / 410.7 MB
Notification: Performance of NFConvertDAE.convert: time 0.001032/0.009917, allocations: 1.27 MB / 484.1 MB, free: 10.89 MB / 410.7 MB
Notification: Performance of FrontEnd - DAE generated: time 2.465e-06/0.00992, allocations: 4.438 kB / 484.1 MB, free: 10.89 MB / 410.7 MB
Notification: Performance of FrontEnd: time 6.01e-07/0.00992, allocations: 0.5938 kB / 484.1 MB, free: 10.89 MB / 410.7 MB
Notification: Performance of Transformations before backend: time 3.066e-06/0.009923, allocations: 0.7188 kB / 484.1 MB, free: 10.89 MB / 410.7 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 0
 * Number of variables: 0
Notification: Performance of Generate backend data structure: time 0.0003634/0.01029, allocations: 0.5554 MB / 484.7 MB, free: 10.38 MB / 410.7 MB
Notification: Performance of prepare preOptimizeDAE: time 3.089e-05/0.01032, allocations: 9.688 kB / 484.7 MB, free: 10.38 MB / 410.7 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 3.716e-05/0.01035, allocations: 128.3 kB / 484.8 MB, free: 10.25 MB / 410.7 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 6.643e-05/0.01042, allocations: 237.3 kB / 485.1 MB, free: 10 MB / 410.7 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001122/0.01053, allocations: 240.1 kB / 485.3 MB, free: 25.77 MB / 426.7 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 5.218e-05/0.01059, allocations: 239.9 kB / 485.5 MB, free: 25.53 MB / 426.7 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 4.912e-05/0.01063, allocations: 154.2 kB / 485.7 MB, free: 25.38 MB / 426.7 MB
Notification: Performance of preOpt findStateOrder (simulation): time 3.136e-05/0.01067, allocations: 120.2 kB / 485.8 MB, free: 25.26 MB / 426.7 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.237e-05/0.01073, allocations: 243.7 kB / 486 MB, free: 25.02 MB / 426.7 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.758e-05/0.01078, allocations: 244.1 kB / 486.3 MB, free: 24.79 MB / 426.7 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 7.513e-05/0.01085, allocations: 243.3 kB / 486.5 MB, free: 24.55 MB / 426.7 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001844/0.01104, allocations: 0.5851 MB / 487.1 MB, free: 23.95 MB / 426.7 MB
Notification: Performance of preOpt comSubExp (simulation): time 7e-05/0.01111, allocations: 264.1 kB / 487.4 MB, free: 23.68 MB / 426.7 MB
Notification: Performance of preOpt resolveLoops (simulation): time 2.873e-05/0.01113, allocations: 130.9 kB / 487.5 MB, free: 23.54 MB / 426.7 MB
Notification: Performance of preOpt evalFunc (simulation): time 8.185e-05/0.01122, allocations: 120.5 kB / 487.6 MB, free: 23.43 MB / 426.7 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.059e-05/0.01125, allocations: 158.4 kB / 487.8 MB, free: 23.26 MB / 426.7 MB
Notification: Performance of pre-optimization done (n=0): time 7.81e-07/0.01125, allocations: 1.688 kB / 487.8 MB, free: 23.26 MB / 426.7 MB
Notification: Performance of matching and sorting (n=0): time 4.624e-05/0.01129, allocations: 31.97 kB / 487.8 MB, free: 23.23 MB / 426.7 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.59e-05/0.01133, allocations: 179.5 kB / 488 MB, free: 23.04 MB / 426.7 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 9.82e-05/0.01143, allocations: 191.1 kB / 488.1 MB, free: 22.87 MB / 426.7 MB
Notification: Performance of collectPreVariables (initialization): time 3.777e-06/0.01143, allocations: 25.7 kB / 488.2 MB, free: 22.84 MB / 426.7 MB
Notification: Performance of collectInitialEqns (initialization): time 4.132e-05/0.01147, allocations: 149 kB / 488.3 MB, free: 22.69 MB / 426.7 MB
Notification: Performance of collectInitialBindings (initialization): time 1.813e-06/0.01147, allocations: 2.156 kB / 488.3 MB, free: 22.69 MB / 426.7 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.147e-05/0.0115, allocations: 23.69 kB / 488.3 MB, free: 22.66 MB / 426.7 MB
Notification: Performance of setup shared object (initialization): time 9.183e-05/0.01159, allocations: 0.4905 MB / 488.8 MB, free: 22.17 MB / 426.7 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 1.248e-05/0.0116, allocations: 3.844 kB / 488.8 MB, free: 22.17 MB / 426.7 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 1.061e-05/0.01161, allocations: 2.719 kB / 488.8 MB, free: 22.17 MB / 426.7 MB
Notification: Performance of analyzeInitialSystem (initialization): time 2.781e-05/0.01164, allocations: 20.03 kB / 488.9 MB, free: 22.15 MB / 426.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.533e-06/0.01164, allocations: 1.031 kB / 488.9 MB, free: 22.15 MB / 426.7 MB
Notification: Performance of matching and sorting (n=5) (initialization): time 8.778e-05/0.01173, allocations: 42.89 kB / 488.9 MB, free: 22.12 MB / 426.7 MB
Notification: Performance of prepare postOptimizeDAE: time 1.011e-05/0.01174, allocations: 6.531 kB / 488.9 MB, free: 22.12 MB / 426.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.586e-05/0.01175, allocations: 2.594 kB / 488.9 MB, free: 22.12 MB / 426.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 9.638e-06/0.01176, allocations: 2.844 kB / 488.9 MB, free: 22.12 MB / 426.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 1.042e-06/0.01176, allocations: 3.938 kB / 488.9 MB, free: 22.11 MB / 426.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.398e-06/0.01177, allocations: 0 / 488.9 MB, free: 22.11 MB / 426.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 1.371e-05/0.01178, allocations: 9.359 kB / 488.9 MB, free: 22.11 MB / 426.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.17e-06/0.01179, allocations: 5.312 kB / 488.9 MB, free: 22.1 MB / 426.7 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 (1):
 * Single equations (assignments): 0
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 1
 * 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 6.723e-05/0.01186, allocations: 278.2 kB / 489.2 MB, free: 21.82 MB / 426.7 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 3.672e-05/0.01189, allocations: 160.9 kB / 489.4 MB, free: 21.66 MB / 426.7 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 3.139e-05/0.01192, allocations: 150.1 kB / 489.5 MB, free: 21.52 MB / 426.7 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.566e-05/0.01197, allocations: 273.7 kB / 489.8 MB, free: 21.25 MB / 426.7 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.943e-05/0.01202, allocations: 273.4 kB / 490 MB, free: 20.97 MB / 426.7 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0001654/0.01218, allocations: 265.5 kB / 490.3 MB, free: 20.71 MB / 426.7 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001219/0.01231, allocations: 0.5 MB / 490.8 MB, free: 20.18 MB / 426.7 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.518e-05/0.01233, allocations: 146 kB / 490.9 MB, free: 20.03 MB / 426.7 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 2.372e-05/0.01235, allocations: 150 kB / 491.1 MB, free: 19.88 MB / 426.7 MB
Notification: Performance of postOpt tearingSystem (simulation): time 4.601e-05/0.0124, allocations: 270 kB / 491.4 MB, free: 19.61 MB / 426.7 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.667e-05/0.01245, allocations: 265.3 kB / 491.6 MB, free: 19.34 MB / 426.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.517e-05/0.01249, allocations: 278.9 kB / 491.9 MB, free: 19.07 MB / 426.7 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.46e-05/0.01254, allocations: 269.3 kB / 492.1 MB, free: 18.8 MB / 426.7 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 9.315e-05/0.01263, allocations: 454.4 kB / 492.6 MB, free: 18.34 MB / 426.7 MB
Notification: Performance of postOpt removeConstants (simulation): time 3.154e-05/0.01266, allocations: 159.6 kB / 492.7 MB, free: 18.18 MB / 426.7 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.485e-05/0.01272, allocations: 265.2 kB / 493 MB, free: 17.91 MB / 426.7 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 4.771e-05/0.01276, allocations: 146 kB / 493.1 MB, free: 17.77 MB / 426.7 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.261e-05/0.01282, allocations: 277.8 kB / 493.4 MB, free: 17.49 MB / 426.7 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.874e-05/0.01285, allocations: 146 kB / 493.6 MB, free: 17.34 MB / 426.7 MB
Notification: Performance of sorting global known variables: time 4.289e-05/0.01289, allocations: 143.5 kB / 493.7 MB, free: 17.22 MB / 426.7 MB
Notification: Performance of sort global known variables: time 5e-08/0.01289, allocations: 0 / 493.7 MB, free: 17.22 MB / 426.7 MB
Notification: Performance of remove unused functions: time 0.0004806/0.01337, allocations: 300.9 kB / 494 MB, free: 17.14 MB / 426.7 MB
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 (0):
 * Single equations (assignments): 0
 * 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 0.0007034/0.01407, allocations: 0.6259 MB / 494.6 MB, free: 16.83 MB / 426.7 MB
Notification: Performance of simCode: created initialization part: time 7.141e-05/0.01414, allocations: 50.39 kB / 494.7 MB, free: 16.78 MB / 426.7 MB
Notification: Performance of simCode: created event and clocks part: time 1.573e-06/0.01415, allocations: 0 / 494.7 MB, free: 16.78 MB / 426.7 MB
Notification: Performance of simCode: created simulation system equations: time 1.543e-06/0.01415, allocations: 4 kB / 494.7 MB, free: 16.78 MB / 426.7 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005308/0.01468, allocations: 0.7125 MB / 495.4 MB, free: 16.07 MB / 426.7 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0002151/0.01489, allocations: 274.1 kB / 495.7 MB, free: 15.81 MB / 426.7 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 2.603e-05/0.01492, allocations: 57.25 kB / 495.7 MB, free: 15.74 MB / 426.7 MB
Notification: Performance of simCode: alias equations: time 9.578e-06/0.01493, allocations: 1.344 kB / 495.7 MB, free: 15.74 MB / 426.7 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 1.017e-05/0.01494, allocations: 11.09 kB / 495.7 MB, free: 15.73 MB / 426.7 MB
Notification: Performance of SimCode: time 5.11e-07/0.01494, allocations: 1.156 kB / 495.7 MB, free: 15.73 MB / 426.7 MB
Notification: Performance of Templates: time 0.007143/0.02208, allocations: 6.021 MB / 0.49 GB, free: 15.32 MB / 426.7 MB
"
[Timeout remaining time 660]
make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.makefile [Timeout 660]
(rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.sim & ./BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative -abortSlowSimulation -alarm=240  -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.Validation.InternalResistancesTwoUTubeNegative.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 3.360156536102295]