Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.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 0.001911/0.001911, allocations: 111.1 kB / 20.44 MB, free: 1.184 MB / 14.72 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 0.002378/0.002378, allocations: 208.9 kB / 23.73 MB, free: 4.387 MB / 14.72 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 1.56/1.56, allocations: 230.6 MB / 257.5 MB, free: 7.801 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo): time 0.2317/0.2317, allocations: 46.95 MB / 360.9 MB, free: 4.039 MB / 286.1 MB
"
[Timeout remaining time 180]
Using package ModelicaTest with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/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: "" <> buildModelFMU(ModelicaTest.Tables.CombiTable2Ds.Test28,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Tables_CombiTable2Ds_Test28",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(ModelicaTest.Tables.CombiTable2Ds.Test28,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Tables_CombiTable2Ds_Test28",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 0.002093/0.002093, allocations: 67.88 kB / 0.4961 GB, free: 7.695 MB / 366.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3384/0.3405, allocations: 66.03 MB / 0.5606 GB, free: 4.238 MB / 398.1 MB
Notification: Performance of NFInst.instantiate(ModelicaTest.Tables.CombiTable2Ds.Test28): time 0.003256/0.3437, allocations: 1.664 MB / 0.5622 GB, free: 2.562 MB / 398.1 MB
Notification: Performance of NFInst.instExpressions: time 0.001101/0.3448, allocations: 0.5309 MB / 0.5628 GB, free: 2.027 MB / 398.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 6.486e-05/0.3449, allocations: 4 kB / 0.5628 GB, free: 2.023 MB / 398.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.000265/0.3452, allocations: 55.78 kB / 0.5628 GB, free: 1.969 MB / 398.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.0003314/0.3455, allocations: 95.61 kB / 0.5629 GB, free: 1.875 MB / 398.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0003594/0.3458, allocations: 139.1 kB / 0.563 GB, free: 1.742 MB / 398.1 MB
Notification: Performance of NFFlatten.flatten: time 0.0001956/0.346, allocations: 79.77 kB / 0.5631 GB, free: 1.664 MB / 398.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001231/0.3462, allocations: 26.03 kB / 0.5631 GB, free: 1.637 MB / 398.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 7.149e-05/0.3462, allocations: 35.84 kB / 0.5632 GB, free: 1.602 MB / 398.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.0001119/0.3463, allocations: 51.81 kB / 0.5632 GB, free: 1.551 MB / 398.1 MB
Notification: Performance of NFPackage.collectConstants: time 1.716e-05/0.3464, allocations: 7.938 kB / 0.5632 GB, free: 1.543 MB / 398.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.0001084/0.3465, allocations: 47.98 kB / 0.5633 GB, free: 1.496 MB / 398.1 MB
Notification: Performance of NFScalarize.scalarize: time 7.964e-05/0.3466, allocations: 23.92 kB / 0.5633 GB, free: 1.473 MB / 398.1 MB
Notification: Performance of NFVerifyModel.verify: time 4.305e-05/0.3466, allocations: 35.72 kB / 0.5633 GB, free: 1.438 MB / 398.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.0002244/0.3468, allocations: 111.5 kB / 0.5634 GB, free: 1.328 MB / 398.1 MB
Notification: Performance of FrontEnd - DAE generated: time 7.905e-06/0.3468, allocations: 15.94 kB / 0.5635 GB, free: 1.312 MB / 398.1 MB
Notification: Performance of FrontEnd: time 1.854e-06/0.3468, allocations: 0 / 0.5635 GB, free: 1.312 MB / 398.1 MB
Notification: Performance of Transformations before backend: time 5.25e-06/0.3468, allocations: 0 / 0.5635 GB, free: 1.312 MB / 398.1 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 9
 * Number of variables: 9
Notification: Performance of Generate backend data structure: time 0.0005875/0.3474, allocations: 345.6 kB / 0.5638 GB, free: 0.9453 MB / 398.1 MB
Notification: Performance of prepare preOptimizeDAE: time 4.446e-05/0.3475, allocations: 12.03 kB / 0.5638 GB, free: 0.9336 MB / 398.1 MB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 4.961e-05/0.3475, allocations: 34.73 kB / 0.5638 GB, free: 0.8906 MB / 398.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 4.196e-05/0.3476, allocations: 12.84 kB / 0.5638 GB, free: 0.8789 MB / 398.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002187/0.3478, allocations: 151 kB / 0.564 GB, free: 0.707 MB / 398.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.182e-05/0.3478, allocations: 4.375 kB / 0.564 GB, free: 0.7031 MB / 398.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 2.568e-05/0.3478, allocations: 4.375 kB / 0.564 GB, free: 0.6992 MB / 398.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001937/0.348, allocations: 69.55 kB / 0.5641 GB, free: 0.625 MB / 398.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.676e-05/0.348, allocations: 3.953 kB / 0.5641 GB, free: 0.6211 MB / 398.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.17e-05/0.348, allocations: 4 kB / 0.5641 GB, free: 0.6172 MB / 398.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.829e-06/0.348, allocations: 4 kB / 0.5641 GB, free: 0.6133 MB / 398.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001358/0.3482, allocations: 31.97 kB / 0.5641 GB, free: 0.582 MB / 398.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0004351/0.3486, allocations: 275.8 kB / 0.5644 GB, free: 276 kB / 398.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0002706/0.3489, allocations: 54.55 kB / 0.5644 GB, free: 212 kB / 398.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 7.62e-05/0.349, allocations: 28.97 kB / 0.5644 GB, free: 180 kB / 398.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 2.322e-05/0.349, allocations: 0 / 0.5644 GB, free: 180 kB / 398.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.956e-05/0.349, allocations: 34.56 kB / 0.5645 GB, free: 136 kB / 398.1 MB
Notification: Performance of pre-optimization done (n=5): time 9.42e-07/0.349, allocations: 0 / 0.5645 GB, free: 136 kB / 398.1 MB
Notification: Performance of matching and sorting (n=11): time 0.001513/0.3505, allocations: 409.3 kB / 0.5649 GB, free: 15.73 MB / 414.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.341e-05/0.3506, allocations: 55.41 kB / 0.5649 GB, free: 15.66 MB / 414.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000225/0.3508, allocations: 200.2 kB / 0.5651 GB, free: 15.45 MB / 414.1 MB
Notification: Performance of collectPreVariables (initialization): time 2.022e-05/0.3508, allocations: 25.7 kB / 0.5651 GB, free: 15.42 MB / 414.1 MB
Notification: Performance of collectInitialEqns (initialization): time 7.486e-05/0.3509, allocations: 104.1 kB / 0.5652 GB, free: 15.32 MB / 414.1 MB
Notification: Performance of collectInitialBindings (initialization): time 4.778e-05/0.3509, allocations: 43.64 kB / 0.5653 GB, free: 15.27 MB / 414.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 5.021e-05/0.351, allocations: 29.7 kB / 0.5653 GB, free: 15.24 MB / 414.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001539/0.3511, allocations: 322.8 kB / 0.5656 GB, free: 14.91 MB / 414.1 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001262/0.3513, allocations: 39.91 kB / 0.5657 GB, free: 14.88 MB / 414.1 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001175/0.3514, allocations: 47.97 kB / 0.5657 GB, free: 14.83 MB / 414.1 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0002501/0.3516, allocations: 101.1 kB / 0.5658 GB, free: 14.73 MB / 414.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.41e-07/0.3516, allocations: 0 / 0.5658 GB, free: 14.73 MB / 414.1 MB
Notification: Performance of matching and sorting (n=11) (initialization): time 0.0003253/0.352, allocations: 149.5 kB / 0.5659 GB, free: 14.57 MB / 414.1 MB
Notification: Performance of prepare postOptimizeDAE: time 1.709e-05/0.352, allocations: 4 kB / 0.5659 GB, free: 14.57 MB / 414.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.912e-06/0.352, allocations: 4 kB / 0.5659 GB, free: 14.57 MB / 414.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 1.665e-05/0.352, allocations: 7.875 kB / 0.566 GB, free: 14.56 MB / 414.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001183/0.3521, allocations: 23.98 kB / 0.566 GB, free: 14.54 MB / 414.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.193e-05/0.3521, allocations: 7.984 kB / 0.566 GB, free: 14.53 MB / 414.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.405e-05/0.3522, allocations: 4 kB / 0.566 GB, free: 14.52 MB / 414.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.173e-05/0.3522, allocations: 4 kB / 0.566 GB, free: 14.52 MB / 414.1 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 (11):
 * Single equations (assignments): 11
 * 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 0.0001236/0.3523, allocations: 125.8 kB / 0.5661 GB, free: 14.39 MB / 414.1 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 4.302e-05/0.3524, allocations: 15.91 kB / 0.5661 GB, free: 14.37 MB / 414.1 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0004118/0.3528, allocations: 167 kB / 0.5663 GB, free: 14.19 MB / 414.1 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.29e-06/0.3528, allocations: 3.938 kB / 0.5663 GB, free: 14.19 MB / 414.1 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.42e-06/0.3528, allocations: 0 / 0.5663 GB, free: 14.19 MB / 414.1 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.12e-05/0.3528, allocations: 11.97 kB / 0.5663 GB, free: 14.18 MB / 414.1 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0007237/0.3535, allocations: 442.9 kB / 0.5667 GB, free: 13.69 MB / 414.1 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.314e-06/0.3535, allocations: 4.062 kB / 0.5667 GB, free: 13.68 MB / 414.1 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001061/0.3536, allocations: 23.98 kB / 0.5668 GB, free: 13.66 MB / 414.1 MB
Notification: Performance of postOpt tearingSystem (simulation): time 1.211e-05/0.3537, allocations: 4 kB / 0.5668 GB, free: 13.66 MB / 414.1 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.009e-05/0.3537, allocations: 192 / 0.5668 GB, free: 13.66 MB / 414.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.777e-06/0.3537, allocations: 4 kB / 0.5668 GB, free: 13.65 MB / 414.1 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.67e-06/0.3537, allocations: 7.984 kB / 0.5668 GB, free: 13.64 MB / 414.1 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004411/0.3541, allocations: 253 kB / 0.567 GB, free: 13.38 MB / 414.1 MB
Notification: Performance of postOpt removeConstants (simulation): time 2.931e-05/0.3541, allocations: 19.94 kB / 0.567 GB, free: 13.36 MB / 414.1 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.093e-05/0.3542, allocations: 0 / 0.567 GB, free: 13.36 MB / 414.1 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001005/0.3543, allocations: 11.98 kB / 0.567 GB, free: 13.34 MB / 414.1 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 4.587e-05/0.3543, allocations: 11.98 kB / 0.5671 GB, free: 13.33 MB / 414.1 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.556e-06/0.3543, allocations: 4 kB / 0.5671 GB, free: 13.33 MB / 414.1 MB
Notification: Performance of sorting global known variables: time 0.0001509/0.3545, allocations: 156.9 kB / 0.5672 GB, free: 13.18 MB / 414.1 MB
Notification: Performance of sort global known variables: time 8e-08/0.3545, allocations: 0 / 0.5672 GB, free: 13.18 MB / 414.1 MB
Notification: Performance of remove unused functions: time 0.0002681/0.3547, allocations: 24 kB / 0.5672 GB, free: 13.15 MB / 414.1 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 3
 * 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 (11):
 * Single equations (assignments): 11
 * 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 0.002469/0.3572, allocations: 1.18 MB / 0.5684 GB, free: 12.16 MB / 414.1 MB
Notification: Performance of simCode: created initialization part: time 0.0003578/0.3576, allocations: 107.9 kB / 0.5685 GB, free: 12.05 MB / 414.1 MB
Notification: Performance of simCode: created event and clocks part: time 2.885e-06/0.3576, allocations: 0 / 0.5685 GB, free: 12.05 MB / 414.1 MB
Notification: Performance of simCode: created simulation system equations: time 0.0002081/0.3578, allocations: 55.91 kB / 0.5685 GB, free: 12 MB / 414.1 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003948/0.3582, allocations: 27.3 kB / 0.5686 GB, free: 11.98 MB / 414.1 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002519/0.3607, allocations: 1.834 MB / 0.5704 GB, free: 10.06 MB / 414.1 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001103/0.3608, allocations: 104.7 kB / 0.5705 GB, free: 9.934 MB / 414.1 MB
Notification: Performance of simCode: alias equations: time 7.005e-05/0.3609, allocations: 12.48 kB / 0.5705 GB, free: 9.922 MB / 414.1 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 9.19e-05/0.361, allocations: 39.42 kB / 0.5705 GB, free: 9.883 MB / 414.1 MB
Notification: Performance of SimCode: time 6.31e-07/0.361, allocations: 3.938 kB / 0.5705 GB, free: 9.879 MB / 414.1 MB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03031/0.3913, allocations: 3.983 MB / 0.5744 GB, free: 5.941 MB / 414.1 MB
Notification: Performance of buildModelFMU: Generate platform static: time 11.36/11.75, allocations: 0 / 0.5744 GB, free: 5.941 MB / 414.1 MB
"
[Timeout remaining time 648]
(rm -f ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.pipe ; mkfifo ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.pipe ; head -c 1048576 < ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.pipe >> ../files/ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.sim & python3 -m fmpy simulate  --output-file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.00019992 ModelicaTest_4_1_0_ModelicaTest_Tables_CombiTable2Ds_Test28.fmu > ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.pipe 2>&1) [Timeout 52.5]
diffSimulationResults("ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/ModelicaTest/Tables/CombiTable2Ds/Test28/Test28.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660]
"Error: Could not read variable t_new.y in file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv.
Warning: Get data of variable t_new.y from file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv failed!
Error: Could not read variable d_t_new.y in file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv.
Warning: Get data of variable d_t_new.y from file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv failed!
Error: Could not read variable clock1.y in file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv.
Warning: Get data of variable clock1.y from file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv failed!
Error: Could not read variable clock2.y in file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv.
Warning: Get data of variable clock2.y from file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv failed!
Error: Could not read variable d2_t_new.y in file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv.
Warning: Get data of variable d2_t_new.y from file ModelicaTest_4.1.0_ModelicaTest.Tables.CombiTable2Ds.Test28_res.csv failed!
"
[Timeout remaining time 660]
Reference file matches
[Calling sys.exit(0), Time elapsed: 15.00637568719685]