Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.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 0.0008119/0.0008119, allocations: 72.95 kB / 20.72 MB, free: 3.77 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 0.001425/0.001425, allocations: 169 kB / 24.14 MB, free: 356 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 0.9742/0.9742, allocations: 177.2 MB / 204.6 MB, free: 5.484 MB / 186.7 MB
"
[Timeout remaining time 179]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo): time 0.6187/0.6187, allocations: 115 MB / 376 MB, free: 7.477 MB / 346.7 MB
"
[Timeout remaining time 179]
Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 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(IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent")
translateModel(IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent") [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 1.162e-06/1.162e-06, allocations: 0 / 428.7 MB, free: 2.805 MB / 394.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.316e-05/1.432e-05, allocations: 2.312 kB / 428.7 MB, free: 2.801 MB / 394.7 MB
Notification: Performance of NFInst.instantiate(IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent): time 0.009635/0.009649, allocations: 12.48 MB / 441.2 MB, free: 6.27 MB / 410.7 MB
Notification: Performance of NFInst.instExpressions: time 0.007518/0.01717, allocations: 4.917 MB / 446.1 MB, free: 1.336 MB / 410.7 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001026/0.01819, allocations: 91.25 kB / 446.2 MB, free: 1.246 MB / 410.7 MB
Notification: Performance of NFTyping.typeComponents: time 0.0007104/0.0189, allocations: 329.2 kB / 446.5 MB, free: 0.9219 MB / 410.7 MB
Notification: Performance of NFTyping.typeBindings: time 0.2289/0.2478, allocations: 1.129 MB / 447.6 MB, free: 17.88 MB / 410.7 MB
Notification: Performance of NFTyping.typeClassSections: time 0.003154/0.251, allocations: 1.7 MB / 449.3 MB, free: 17.88 MB / 410.7 MB
Notification: Performance of NFFlatten.flatten: time 0.003536/0.2545, allocations: 3.467 MB / 452.8 MB, free: 17.2 MB / 410.7 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.00127/0.2558, allocations: 1.001 MB / 453.8 MB, free: 17.06 MB / 410.7 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.002262/0.2581, allocations: 1.804 MB / 455.6 MB, free: 16.9 MB / 410.7 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.00105/0.2591, allocations: 0.7744 MB / 456.4 MB, free: 16.78 MB / 410.7 MB
Notification: Performance of NFPackage.collectConstants: time 0.0001666/0.2593, allocations: 87.72 kB / 456.5 MB, free: 16.78 MB / 410.7 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.001183/0.2605, allocations: 0.7657 MB / 457.2 MB, free: 16.77 MB / 410.7 MB
Notification: Performance of NFScalarize.scalarize: time 0.0002046/0.2607, allocations: 280.7 kB / 457.5 MB, free: 16.7 MB / 410.7 MB
Notification: Performance of NFVerifyModel.verify: time 0.0005207/0.2612, allocations: 0.49 MB / 458 MB, free: 16.63 MB / 410.7 MB
Notification: Performance of NFConvertDAE.convert: time 0.001373/0.2626, allocations: 1.428 MB / 459.4 MB, free: 16.41 MB / 410.7 MB
Notification: Performance of FrontEnd - DAE generated: time 4.218e-06/0.2626, allocations: 0 / 459.4 MB, free: 16.41 MB / 410.7 MB
Notification: Performance of FrontEnd: time 1.463e-06/0.2626, allocations: 0.75 kB / 459.4 MB, free: 16.41 MB / 410.7 MB
Notification: Performance of Transformations before backend: time 2.818e-05/0.2626, allocations: 3 kB / 459.4 MB, free: 16.41 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: 182
 * Number of variables: 182
Notification: Performance of Generate backend data structure: time 0.00139/0.264, allocations: 1.705 MB / 461.1 MB, free: 15.51 MB / 410.7 MB
Notification: Performance of prepare preOptimizeDAE: time 3.122e-05/0.264, allocations: 10.12 kB / 461.2 MB, free: 15.51 MB / 410.7 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003073/0.2643, allocations: 196 kB / 461.3 MB, free: 15.5 MB / 410.7 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008079/0.2651, allocations: 0.8143 MB / 462.2 MB, free: 15.14 MB / 410.7 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.177e-05/0.2652, allocations: 241.6 kB / 462.4 MB, free: 14.96 MB / 410.7 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 6.635e-05/0.2653, allocations: 104 kB / 462.5 MB, free: 14.96 MB / 410.7 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004728/0.2658, allocations: 0.6445 MB / 463.1 MB, free: 14.65 MB / 410.7 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.303e-05/0.2658, allocations: 0 / 463.1 MB, free: 14.65 MB / 410.7 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.206e-05/0.2658, allocations: 32.06 kB / 463.2 MB, free: 14.63 MB / 410.7 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.024e-05/0.2658, allocations: 18.06 kB / 463.2 MB, free: 14.63 MB / 410.7 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00017/0.266, allocations: 155.8 kB / 463.3 MB, free: 14.61 MB / 410.7 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001462/0.2675, allocations: 1.534 MB / 464.9 MB, free: 13.78 MB / 410.7 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0001698/0.2676, allocations: 217.3 kB / 465.1 MB, free: 13.6 MB / 410.7 MB
Notification: Performance of preOpt resolveLoops (simulation): time 5.68e-05/0.2677, allocations: 63.62 kB / 465.1 MB, free: 13.56 MB / 410.7 MB
Notification: Performance of preOpt evalFunc (simulation): time 2.561e-05/0.2677, allocations: 4.5 kB / 465.2 MB, free: 13.56 MB / 410.7 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.467e-05/0.2677, allocations: 46.33 kB / 465.2 MB, free: 13.52 MB / 410.7 MB
Notification: Performance of pre-optimization done (n=20): time 1.953e-06/0.2677, allocations: 0.625 kB / 465.2 MB, free: 13.52 MB / 410.7 MB
Notification: Performance of matching and sorting (n=20): time 0.0002929/0.268, allocations: 175 kB / 465.4 MB, free: 13.45 MB / 410.7 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 2.554e-05/0.268, allocations: 106.5 kB / 465.5 MB, free: 13.32 MB / 410.7 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004107/0.2685, allocations: 0.8804 MB / 466.4 MB, free: 12.98 MB / 410.7 MB
Notification: Performance of collectPreVariables (initialization): time 2.69e-05/0.2685, allocations: 44.27 kB / 466.4 MB, free: 12.94 MB / 410.7 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0001336/0.2686, allocations: 460.2 kB / 466.8 MB, free: 12.62 MB / 410.7 MB
Notification: Performance of collectInitialBindings (initialization): time 3.034e-05/0.2687, allocations: 74.72 kB / 466.9 MB, free: 12.56 MB / 410.7 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 9.745e-05/0.2687, allocations: 169.6 kB / 467.1 MB, free: 12.49 MB / 410.7 MB
Notification: Performance of setup shared object (initialization): time 3.827e-05/0.2688, allocations: 340 kB / 467.4 MB, free: 12.17 MB / 410.7 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 7.07e-05/0.2689, allocations: 66.34 kB / 467.5 MB, free: 12.15 MB / 410.7 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002619/0.2691, allocations: 1.079 MB / 468.6 MB, free: 10.82 MB / 410.7 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003804/0.2695, allocations: 0.6544 MB / 469.2 MB, free: 10.06 MB / 410.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.532e-06/0.2695, allocations: 4.688 kB / 469.2 MB, free: 10.05 MB / 410.7 MB
Notification: Performance of matching and sorting (n=95) (initialization): time 0.0004216/0.2699, allocations: 0.521 MB / 469.7 MB, free: 9.633 MB / 410.7 MB
Notification: Performance of prepare postOptimizeDAE: time 1.544e-05/0.2699, allocations: 14.81 kB / 469.8 MB, free: 9.621 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.838e-05/0.27, allocations: 16.55 kB / 469.8 MB, free: 9.605 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 1.817e-05/0.27, allocations: 21.78 kB / 469.8 MB, free: 9.586 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006321/0.2706, allocations: 249.5 kB / 470 MB, free: 9.363 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009033/0.2715, allocations: 1.878 MB / 471.9 MB, free: 7.41 MB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002893/0.2718, allocations: 101.7 kB / 472 MB, free: 7.312 MB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.109e-05/0.2718, allocations: 39.98 kB / 472.1 MB, free: 7.273 MB / 410.7 MB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001288/0.272, allocations: 162.4 kB / 472.2 MB, free: 7.113 MB / 410.7 MB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000225/0.2722, allocations: 1.083 MB / 473.3 MB, free: 5.68 MB / 410.7 MB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003084/0.2725, allocations: 0.6491 MB / 473.9 MB, free: 4.918 MB / 410.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.118e-06/0.2725, allocations: 4 kB / 473.9 MB, free: 4.914 MB / 410.7 MB
Notification: Performance of matching and sorting (n=95) (initialization_lambda0): time 0.0003823/0.2729, allocations: 0.5183 MB / 474.5 MB, free: 4.5 MB / 410.7 MB
Notification: Performance of prepare postOptimizeDAE: time 8.937e-06/0.2729, allocations: 12.94 kB / 474.5 MB, free: 4.488 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.136e-05/0.2729, allocations: 16 kB / 474.5 MB, free: 4.473 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 9.628e-06/0.2729, allocations: 20 kB / 474.5 MB, free: 4.453 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000226/0.2731, allocations: 182.7 kB / 474.7 MB, free: 4.289 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.105e-05/0.2732, allocations: 31.3 kB / 474.7 MB, free: 4.266 MB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000252/0.2734, allocations: 83.78 kB / 474.8 MB, free: 4.188 MB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.397e-05/0.2734, allocations: 36 kB / 474.8 MB, free: 4.152 MB / 410.7 MB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 70
 * 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 (87):
 * Single equations (assignments): 84
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 1
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * Torn equation systems: 0
 * 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): 2 systems
   {1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 8.762e-05/0.2735, allocations: 242.6 kB / 475.1 MB, free: 3.922 MB / 410.7 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 6.858e-05/0.2736, allocations: 55.94 kB / 475.1 MB, free: 3.867 MB / 410.7 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001509/0.2737, allocations: 170.6 kB / 475.3 MB, free: 3.699 MB / 410.7 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.995e-06/0.2737, allocations: 7.938 kB / 475.3 MB, free: 3.691 MB / 410.7 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.723e-06/0.2737, allocations: 0 / 475.3 MB, free: 3.691 MB / 410.7 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.248e-06/0.2737, allocations: 4.938 kB / 475.3 MB, free: 3.688 MB / 410.7 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005818/0.2743, allocations: 0.8218 MB / 476.1 MB, free: 2.926 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.663e-06/0.2743, allocations: 0 / 476.1 MB, free: 2.926 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003951/0.2747, allocations: 128.4 kB / 476.3 MB, free: 2.809 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (simulation): time 2.985e-06/0.2747, allocations: 3.938 kB / 476.3 MB, free: 2.805 MB / 410.7 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.474e-06/0.2747, allocations: 8.5 kB / 476.3 MB, free: 2.797 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0005613/0.2753, allocations: 1.826 MB / 478.1 MB, free: 0.8867 MB / 410.7 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.884e-06/0.2753, allocations: 3.938 kB / 478.1 MB, free: 0.8828 MB / 410.7 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000146/0.2754, allocations: 309.5 kB / 478.4 MB, free: 0.5625 MB / 410.7 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001025/0.2755, allocations: 108.4 kB / 478.5 MB, free: 468 kB / 410.7 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.888e-05/0.2756, allocations: 4 kB / 478.5 MB, free: 464 kB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001776/0.2758, allocations: 25.02 kB / 478.5 MB, free: 440 kB / 410.7 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 4.519e-05/0.2758, allocations: 19.56 kB / 478.6 MB, free: 424 kB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.376e-05/0.2758, allocations: 11.98 kB / 478.6 MB, free: 412 kB / 410.7 MB
Notification: Performance of sorting global known variables: time 0.0002106/0.276, allocations: 429.7 kB / 479 MB, free: 32 kB / 410.7 MB
Notification: Performance of sort global known variables: time 1.7e-07/0.276, allocations: 0.625 kB / 479 MB, free: 32 kB / 410.7 MB
Notification: Performance of remove unused functions: time 0.0009165/0.2769, allocations: 0.5533 MB / 479.5 MB, free: 15.47 MB / 426.7 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 4
 * 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 (20):
 * Single equations (assignments): 18
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * Torn equation systems: 0
 * 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): 2 systems
   {1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0002134/0.2772, allocations: 155.2 kB / 479.7 MB, free: 15.32 MB / 426.7 MB
Notification: Performance of simCode: created initialization part: time 0.001123/0.2783, allocations: 0.6382 MB / 480.3 MB, free: 14.79 MB / 426.7 MB
Notification: Performance of simCode: created event and clocks part: time 9.718e-06/0.2783, allocations: 12 kB / 480.3 MB, free: 14.78 MB / 426.7 MB
Notification: Performance of simCode: created simulation system equations: time 0.000374/0.2787, allocations: 135.4 kB / 480.5 MB, free: 14.66 MB / 426.7 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006665/0.2793, allocations: 311.2 kB / 480.8 MB, free: 14.4 MB / 426.7 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001601/0.2809, allocations: 1.646 MB / 482.4 MB, free: 12.71 MB / 426.7 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001071/0.281, allocations: 192.9 kB / 482.6 MB, free: 12.5 MB / 426.7 MB
Notification: Performance of simCode: alias equations: time 0.0002901/0.2813, allocations: 141.8 kB / 482.8 MB, free: 12.39 MB / 426.7 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004451/0.2818, allocations: 329.6 kB / 483.1 MB, free: 12.07 MB / 426.7 MB
Notification: Performance of SimCode: time 7.41e-07/0.2818, allocations: 0 / 483.1 MB, free: 12.07 MB / 426.7 MB
Notification: Performance of Templates: time 0.01825/0.3, allocations: 14.38 MB / 497.4 MB, free: 14.47 MB / 442.7 MB
"
[Timeout remaining time 660]
make -j1 -f IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.makefile [Timeout 660]
(rm -f IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.sim & ./IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent -abortSlowSimulation -alarm=240  -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.FixedResistances.Validation.PressureDropPartiallyTurbulent.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 3.9666612739674747]