Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.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 0.001317/0.001317, 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 0.001985/0.001985, 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 1.014/1.014, allocations: 177.1 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 0.6366/0.6366, allocations: 115 MB / 376 MB, free: 7.445 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.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer")
translateModel(IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer") [Timeout 660]
"Notification: Performance of FrontEnd - loaded program: time 1.353e-06/1.353e-06, allocations: 3.938 kB / 428.8 MB, free: 2.742 MB / 394.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 2.336e-05/2.472e-05, allocations: 10.25 kB / 428.8 MB, free: 2.73 MB / 394.7 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer): time 0.004332/0.004357, allocations: 3.881 MB / 432.6 MB, free: 14.82 MB / 410.7 MB
Notification: Performance of NFInst.instExpressions: time 0.002785/0.007141, allocations: 1.815 MB / 434.5 MB, free: 13 MB / 410.7 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0002063/0.007348, allocations: 19.81 kB / 434.5 MB, free: 12.98 MB / 410.7 MB
Notification: Performance of NFTyping.typeComponents: time 0.0004802/0.007828, allocations: 158.8 kB / 434.6 MB, free: 12.82 MB / 410.7 MB
Notification: Performance of NFTyping.typeBindings: time 0.0006306/0.008459, allocations: 477.2 kB / 435.1 MB, free: 12.35 MB / 410.7 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0004656/0.008924, allocations: 319.3 kB / 435.4 MB, free: 12.04 MB / 410.7 MB
Notification: Performance of NFFlatten.flatten: time 0.0008282/0.009752, allocations: 1.052 MB / 436.5 MB, free: 10.98 MB / 410.7 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.0005132/0.01027, allocations: 378.5 kB / 436.8 MB, free: 10.6 MB / 410.7 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.0005283/0.01079, allocations: 0.5611 MB / 437.4 MB, free: 10.04 MB / 410.7 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.0005473/0.01134, allocations: 458.7 kB / 437.8 MB, free: 9.59 MB / 410.7 MB
Notification: Performance of NFPackage.collectConstants: time 7.554e-05/0.01142, allocations: 60 kB / 437.9 MB, free: 9.531 MB / 410.7 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.0003499/0.01177, allocations: 235.6 kB / 438.1 MB, free: 9.301 MB / 410.7 MB
Notification: Performance of NFScalarize.scalarize: time 0.0002206/0.01199, allocations: 331.1 kB / 438.5 MB, free: 8.977 MB / 410.7 MB
Notification: Performance of NFVerifyModel.verify: time 0.000188/0.01218, allocations: 271.3 kB / 438.7 MB, free: 8.711 MB / 410.7 MB
Notification: Performance of NFConvertDAE.convert: time 0.0006641/0.01284, allocations: 0.7357 MB / 439.5 MB, free: 7.973 MB / 410.7 MB
Notification: Performance of FrontEnd - DAE generated: time 5.17e-06/0.01284, allocations: 0 / 439.5 MB, free: 7.973 MB / 410.7 MB
Notification: Performance of FrontEnd: time 9.31e-07/0.01285, allocations: 0 / 439.5 MB, free: 7.973 MB / 410.7 MB
Notification: Performance of Transformations before backend: time 9.448e-06/0.01285, allocations: 0 / 439.5 MB, free: 7.973 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: 181
 * Number of variables: 181
Notification: Performance of Generate backend data structure: time 0.001079/0.01393, allocations: 0.8808 MB / 440.3 MB, free: 7.066 MB / 410.7 MB
Notification: Performance of prepare preOptimizeDAE: time 3.619e-05/0.01397, allocations: 12.03 kB / 440.3 MB, free: 7.055 MB / 410.7 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002534/0.0165, allocations: 0.5779 MB / 440.9 MB, free: 6.477 MB / 410.7 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005442/0.01705, allocations: 472.8 kB / 441.4 MB, free: 5.988 MB / 410.7 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.181e-05/0.01708, allocations: 45.67 kB / 441.4 MB, free: 5.941 MB / 410.7 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001022/0.01718, allocations: 60.36 kB / 441.5 MB, free: 5.883 MB / 410.7 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001241/0.01842, allocations: 0.9736 MB / 442.5 MB, free: 4.824 MB / 410.7 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.938e-05/0.01844, allocations: 4.125 kB / 442.5 MB, free: 4.82 MB / 410.7 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.493e-05/0.01851, allocations: 28.36 kB / 442.5 MB, free: 4.793 MB / 410.7 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001119/0.01862, allocations: 89.38 kB / 442.6 MB, free: 4.707 MB / 410.7 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006487/0.01927, allocations: 485.9 kB / 443.1 MB, free: 4.234 MB / 410.7 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003578/0.02285, allocations: 3.351 MB / 446.4 MB, free: 0.7891 MB / 410.7 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0007489/0.02359, allocations: 0.6039 MB / 447 MB, free: 128 kB / 410.7 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.2556/0.2792, allocations: 213.6 kB / 447.2 MB, free: 25.37 MB / 410.7 MB
Notification: Performance of preOpt evalFunc (simulation): time 0.002701/0.2819, allocations: 1.476 MB / 448.7 MB, free: 24.41 MB / 410.7 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.713e-05/0.282, allocations: 49.72 kB / 448.7 MB, free: 24.37 MB / 410.7 MB
Notification: Performance of pre-optimization done (n=69): time 3.917e-06/0.282, allocations: 0.8125 kB / 448.7 MB, free: 24.37 MB / 410.7 MB
Notification: Performance of matching and sorting (n=71): time 0.004892/0.2868, allocations: 1.436 MB / 450.2 MB, free: 24.21 MB / 410.7 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.549e-05/0.2869, allocations: 191.3 kB / 450.4 MB, free: 23.99 MB / 410.7 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005465/0.2874, allocations: 465.7 kB / 450.8 MB, free: 23.87 MB / 410.7 MB
Notification: Performance of collectPreVariables (initialization): time 6.819e-05/0.2875, allocations: 34.67 kB / 450.9 MB, free: 23.84 MB / 410.7 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0002069/0.2877, allocations: 377.7 kB / 451.2 MB, free: 23.61 MB / 410.7 MB
Notification: Performance of collectInitialBindings (initialization): time 0.0002224/0.2879, allocations: 264.4 kB / 451.5 MB, free: 23.48 MB / 410.7 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004166/0.2884, allocations: 202.3 kB / 451.7 MB, free: 23.45 MB / 410.7 MB
Notification: Performance of setup shared object (initialization): time 0.0001111/0.2885, allocations: 373 kB / 452 MB, free: 23.14 MB / 410.7 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004808/0.289, allocations: 176.8 kB / 452.2 MB, free: 23.12 MB / 410.7 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006118/0.2896, allocations: 487 kB / 452.7 MB, free: 22.79 MB / 410.7 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001299/0.2909, allocations: 0.6666 MB / 453.4 MB, free: 22.48 MB / 410.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.821e-05/0.2909, allocations: 8.969 kB / 453.4 MB, free: 22.48 MB / 410.7 MB
Notification: Performance of matching and sorting (n=130) (initialization): time 0.002651/0.2935, allocations: 0.8378 MB / 454.2 MB, free: 22.41 MB / 410.7 MB
Notification: Performance of prepare postOptimizeDAE: time 3.536e-05/0.2936, allocations: 9.891 kB / 454.2 MB, free: 22.41 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.852e-05/0.2936, allocations: 8.375 kB / 454.2 MB, free: 22.41 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001546/0.2951, allocations: 0.4997 MB / 454.7 MB, free: 22.39 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007539/0.2959, allocations: 255.1 kB / 455 MB, free: 22.39 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002707/0.2986, allocations: 2.988 MB / 458 MB, free: 20.04 MB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006276/0.2992, allocations: 69.53 kB / 458 MB, free: 20.04 MB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.744e-05/0.2993, allocations: 39.94 kB / 458.1 MB, free: 20.04 MB / 410.7 MB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004867/0.2998, allocations: 269.3 kB / 458.3 MB, free: 19.95 MB / 410.7 MB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004325/0.3002, allocations: 477.2 kB / 458.8 MB, free: 19.61 MB / 410.7 MB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007443/0.301, allocations: 0.6622 MB / 459.5 MB, free: 19.3 MB / 410.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 8.676e-06/0.301, allocations: 2.219 kB / 459.5 MB, free: 19.3 MB / 410.7 MB
Notification: Performance of matching and sorting (n=130) (initialization_lambda0): time 0.00123/0.3022, allocations: 0.7694 MB / 460.2 MB, free: 19.23 MB / 410.7 MB
Notification: Performance of prepare postOptimizeDAE: time 1.24e-05/0.3022, allocations: 8.938 kB / 460.2 MB, free: 19.23 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.18e-05/0.3022, allocations: 10.45 kB / 460.3 MB, free: 19.23 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0004505/0.3027, allocations: 211.8 kB / 460.5 MB, free: 19.21 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006181/0.3033, allocations: 255.4 kB / 460.7 MB, free: 19.21 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001515/0.3048, allocations: 2.895 MB / 463.6 MB, free: 16.87 MB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004906/0.3053, allocations: 71.92 kB / 463.7 MB, free: 16.86 MB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.809e-05/0.3054, allocations: 42.64 kB / 463.7 MB, free: 16.86 MB / 410.7 MB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 37
 * 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 (116):
 * Single equations (assignments): 114
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(2,6,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(2,6)}
Notification: Performance of prepare postOptimizeDAE: time 0.0002127/0.3056, allocations: 240.9 kB / 464 MB, free: 16.68 MB / 410.7 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001486/0.3057, allocations: 70.56 kB / 464 MB, free: 16.68 MB / 410.7 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001052/0.3068, allocations: 0.7326 MB / 464.8 MB, free: 16.57 MB / 410.7 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.951e-06/0.3068, allocations: 7.75 kB / 464.8 MB, free: 16.57 MB / 410.7 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.56e-06/0.3068, allocations: 6.219 kB / 464.8 MB, free: 16.57 MB / 410.7 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.963e-06/0.3068, allocations: 2.859 kB / 464.8 MB, free: 16.57 MB / 410.7 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001768/0.3086, allocations: 1.77 MB / 466.5 MB, free: 15.73 MB / 410.7 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.839e-06/0.3086, allocations: 3 kB / 466.5 MB, free: 15.73 MB / 410.7 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004201/0.309, allocations: 145.9 kB / 466.7 MB, free: 15.72 MB / 410.7 MB
Notification: Performance of postOpt tearingSystem (simulation): time 0.0008597/0.3098, allocations: 428.6 kB / 467.1 MB, free: 15.67 MB / 410.7 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.523e-05/0.3099, allocations: 30.28 kB / 467.1 MB, free: 15.66 MB / 410.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00158/0.3115, allocations: 2.938 MB / 470.1 MB, free: 12.74 MB / 410.7 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.847e-06/0.3115, allocations: 11.94 kB / 470.1 MB, free: 12.73 MB / 410.7 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008468/0.3123, allocations: 1.002 MB / 471.1 MB, free: 11.7 MB / 410.7 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001759/0.3125, allocations: 153 kB / 471.2 MB, free: 11.59 MB / 410.7 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.456e-05/0.3126, allocations: 23.36 kB / 471.3 MB, free: 11.58 MB / 410.7 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003859/0.313, allocations: 45.03 kB / 471.3 MB, free: 11.55 MB / 410.7 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001396/0.3131, allocations: 63.39 kB / 471.4 MB, free: 11.49 MB / 410.7 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.227e-05/0.3131, allocations: 33.09 kB / 471.4 MB, free: 11.47 MB / 410.7 MB
Notification: Performance of sorting global known variables: time 0.0001417/0.3133, allocations: 186 kB / 471.6 MB, free: 11.32 MB / 410.7 MB
Notification: Performance of sort global known variables: time 6.1e-08/0.3133, allocations: 0 / 471.6 MB, free: 11.32 MB / 410.7 MB
Notification: Performance of remove unused functions: time 0.001064/0.3143, allocations: 434 kB / 472 MB, free: 10.93 MB / 410.7 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 19
 * 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 (58):
 * Single equations (assignments): 56
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 1 system
   {(2,6,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(2,6)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0001698/0.3145, allocations: 109.9 kB / 472.1 MB, free: 10.82 MB / 410.7 MB
Notification: Performance of simCode: created initialization part: time 0.001602/0.3161, allocations: 1.602 MB / 473.7 MB, free: 9.211 MB / 410.7 MB
Notification: Performance of simCode: created event and clocks part: time 1.712e-05/0.3161, allocations: 11.62 kB / 473.7 MB, free: 9.199 MB / 410.7 MB
Notification: Performance of simCode: created simulation system equations: time 0.0004519/0.3166, allocations: 0.5757 MB / 474.3 MB, free: 8.613 MB / 410.7 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005284/0.3171, allocations: 140.4 kB / 474.4 MB, free: 8.48 MB / 410.7 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002363/0.3195, allocations: 1.464 MB / 475.9 MB, free: 6.969 MB / 410.7 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001653/0.3196, allocations: 210.3 kB / 476.1 MB, free: 6.742 MB / 410.7 MB
Notification: Performance of simCode: alias equations: time 0.0007038/0.3203, allocations: 279 kB / 476.4 MB, free: 6.504 MB / 410.7 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003676/0.3207, allocations: 163.5 kB / 476.5 MB, free: 6.344 MB / 410.7 MB
Notification: Performance of SimCode: time 1.372e-06/0.3207, allocations: 3.938 kB / 476.5 MB, free: 6.34 MB / 410.7 MB
Notification: Performance of Templates: time 0.01811/0.3388, allocations: 16.68 MB / 493.2 MB, free: 6.078 MB / 426.7 MB
"
[Timeout remaining time 660]
make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.makefile [Timeout 660]
(rm -f IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.sim & ./IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer -abortSlowSimulation -alarm=240 -s gbode -gbm=radauIIA3 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 4.211479709949344]