Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.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 0.0009751/0.0009751, allocations: 76.81 kB / 22.28 MB, free: 2.207 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 0.0009923/0.0009923, allocations: 163.3 kB / 25.7 MB, free: 8.438 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 0.8258/0.8258, allocations: 158.6 MB / 187.6 MB, free: 2.785 MB / 170.7 MB " [Timeout remaining time 179] Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(Modelica.Fluid.Examples.TraceSubstances.RoomCO2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.T|volume.medium.Xi.[0-9,]+.|volume.medium.p",fileNamePrefix="Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2") translateModel(Modelica.Fluid.Examples.TraceSubstances.RoomCO2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.T|volume.medium.Xi.[0-9,]+.|volume.medium.p",fileNamePrefix="Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.333e-06/1.333e-06, allocations: 0 / 251.5 MB, free: 7.281 MB / 234.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 1.123e-05/1.256e-05, allocations: 6.312 kB / 251.5 MB, free: 7.273 MB / 234.7 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.TraceSubstances.RoomCO2): time 0.2494/0.2494, allocations: 148.9 MB / 400.5 MB, free: 9.027 MB / 330.7 MB Notification: Performance of NFInst.instExpressions: time 0.00681/0.2562, allocations: 8.136 MB / 408.6 MB, free: 7.5 MB / 330.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003292/0.2565, allocations: 33.28 kB / 408.6 MB, free: 7.48 MB / 330.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0004656/0.257, allocations: 254 kB / 408.9 MB, free: 7.309 MB / 330.7 MB Notification: Performance of NFTyping.typeBindings: time 0.002974/0.26, allocations: 2.098 MB / 411 MB, free: 6.312 MB / 330.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.002396/0.2624, allocations: 2.036 MB / 413 MB, free: 5.574 MB / 330.7 MB Notification: Performance of NFFlatten.flatten: time 0.00151/0.2639, allocations: 2.561 MB / 415.6 MB, free: 4.82 MB / 330.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0005819/0.2645, allocations: 0.703 MB / 416.3 MB, free: 4.66 MB / 330.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001309/0.2658, allocations: 1.574 MB / 417.8 MB, free: 4.199 MB / 330.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007789/0.2666, allocations: 0.921 MB / 418.8 MB, free: 3.762 MB / 330.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0001407/0.2667, allocations: 117 kB / 418.9 MB, free: 3.762 MB / 330.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002335/0.269, allocations: 2.219 MB / 421.1 MB, free: 2.801 MB / 330.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0003115/0.2693, allocations: 0.5865 MB / 421.7 MB, free: 2.43 MB / 330.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0003471/0.2697, allocations: 489 kB / 422.2 MB, free: 2.211 MB / 330.7 MB Notification: Performance of NFConvertDAE.convert: time 0.002238/0.2719, allocations: 2.732 MB / 424.9 MB, free: 0.7109 MB / 330.7 MB Notification: Performance of FrontEnd - DAE generated: time 3.657e-06/0.2719, allocations: 6.75 kB / 424.9 MB, free: 0.707 MB / 330.7 MB Notification: Performance of FrontEnd: time 1.553e-06/0.2719, allocations: 3.984 kB / 424.9 MB, free: 0.7031 MB / 330.7 MB Notification: Performance of Transformations before backend: time 1.216e-05/0.272, allocations: 0 / 424.9 MB, free: 0.7031 MB / 330.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 228 * Number of variables: 228 Notification: Performance of Generate backend data structure: time 0.001962/0.2739, allocations: 1.664 MB / 426.6 MB, free: 15.11 MB / 346.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.433e-05/0.2739, allocations: 19.98 kB / 426.6 MB, free: 15.09 MB / 346.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000311/0.2743, allocations: 192.6 kB / 426.8 MB, free: 14.9 MB / 346.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006405/0.2749, allocations: 0.5275 MB / 427.3 MB, free: 14.36 MB / 346.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001011/0.275, allocations: 184.6 kB / 427.5 MB, free: 14.15 MB / 346.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001168/0.2751, allocations: 98.45 kB / 427.6 MB, free: 14.06 MB / 346.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009359/0.2761, allocations: 1.32 MB / 428.9 MB, free: 12.61 MB / 346.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.875e-05/0.2761, allocations: 4 kB / 428.9 MB, free: 12.61 MB / 346.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.354e-05/0.2761, allocations: 39.44 kB / 428.9 MB, free: 12.57 MB / 346.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.272e-05/0.2762, allocations: 73.95 kB / 429 MB, free: 12.5 MB / 346.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006184/0.2768, allocations: 0.4924 MB / 429.5 MB, free: 12 MB / 346.7 MB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003789/0.2806, allocations: 3.489 MB / 433 MB, free: 8.535 MB / 346.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0006326/0.2812, allocations: 0.5119 MB / 433.5 MB, free: 8.031 MB / 346.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001955/0.2814, allocations: 168.2 kB / 433.7 MB, free: 7.871 MB / 346.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0003409/0.2818, allocations: 245.3 kB / 433.9 MB, free: 7.633 MB / 346.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.719e-05/0.2818, allocations: 47.5 kB / 434 MB, free: 7.574 MB / 346.7 MB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0001754/0.282, allocations: 87.39 kB / 434 MB, free: 7.488 MB / 346.7 MB Notification: Performance of pre-optimization done (n=84): time 1.924e-06/0.282, allocations: 0 / 434 MB, free: 7.488 MB / 346.7 MB Notification: Performance of matching and sorting (n=96): time 0.004738/0.2867, allocations: 2.439 MB / 436.5 MB, free: 5.051 MB / 346.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.985e-05/0.2868, allocations: 115.8 kB / 436.6 MB, free: 4.914 MB / 346.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003442/0.2871, allocations: 0.5494 MB / 437.1 MB, free: 4.445 MB / 346.7 MB Notification: Performance of collectPreVariables (initialization): time 7.037e-05/0.2872, allocations: 49.7 kB / 437.2 MB, free: 4.391 MB / 346.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001629/0.2873, allocations: 418 kB / 437.6 MB, free: 4.008 MB / 346.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001802/0.2875, allocations: 350.8 kB / 437.9 MB, free: 3.684 MB / 346.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002415/0.2878, allocations: 234.3 kB / 438.2 MB, free: 3.477 MB / 346.7 MB Notification: Performance of setup shared object (initialization): time 0.0001092/0.2879, allocations: 395.7 kB / 438.6 MB, free: 3.121 MB / 346.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004777/0.2884, allocations: 232.2 kB / 438.8 MB, free: 2.879 MB / 346.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004054/0.2888, allocations: 0.6049 MB / 439.4 MB, free: 2.129 MB / 346.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006994/0.2895, allocations: 0.8306 MB / 440.2 MB, free: 1.168 MB / 346.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.449e-06/0.2895, allocations: 0 / 440.2 MB, free: 1.168 MB / 346.7 MB Notification: Performance of matching and sorting (n=155) (initialization): time 0.0009464/0.2904, allocations: 0.879 MB / 441.1 MB, free: 260 kB / 346.7 MB Notification: Performance of prepare postOptimizeDAE: time 3.65e-05/0.2904, allocations: 67.39 kB / 441.2 MB, free: 180 kB / 346.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.231e-05/0.2905, allocations: 15.94 kB / 441.2 MB, free: 164 kB / 346.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004272/0.2909, allocations: 163.1 kB / 441.3 MB, free: 0 / 346.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005418/0.2914, allocations: 259.6 kB / 441.6 MB, free: 15.75 MB / 362.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004244/0.2919, allocations: 0.6206 MB / 442.2 MB, free: 15.1 MB / 362.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003867/0.2922, allocations: 48.02 kB / 442.3 MB, free: 15.05 MB / 362.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.829e-05/0.2923, allocations: 67.95 kB / 442.3 MB, free: 14.99 MB / 362.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004022/0.2927, allocations: 327.7 kB / 442.6 MB, free: 14.65 MB / 362.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004567/0.2932, allocations: 0.6042 MB / 443.3 MB, free: 13.9 MB / 362.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007579/0.294, allocations: 0.8266 MB / 444.1 MB, free: 12.94 MB / 362.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.582e-06/0.294, allocations: 4 kB / 444.1 MB, free: 12.94 MB / 362.7 MB Notification: Performance of matching and sorting (n=155) (initialization_lambda0): time 0.000982/0.2949, allocations: 0.8808 MB / 445 MB, free: 12.02 MB / 362.7 MB Notification: Performance of prepare postOptimizeDAE: time 3.02e-05/0.295, allocations: 67.41 kB / 445 MB, free: 11.94 MB / 362.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.155e-06/0.295, allocations: 12 kB / 445 MB, free: 11.93 MB / 362.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003867/0.2954, allocations: 157.3 kB / 445.2 MB, free: 11.77 MB / 362.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009527/0.2963, allocations: 263.5 kB / 445.5 MB, free: 11.52 MB / 362.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003625/0.2967, allocations: 0.6145 MB / 446.1 MB, free: 10.88 MB / 362.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003591/0.297, allocations: 51.98 kB / 446.1 MB, free: 10.83 MB / 362.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.964e-05/0.2971, allocations: 63.97 kB / 446.2 MB, free: 10.77 MB / 362.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 6 (traceVolume.ind,traceSource.ind,volume.regularFlow[1],volume.regularFlow[2],volume.inFlow[2],volume.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (148): * Single equations (assignments): 145 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0002074/0.2973, allocations: 265.5 kB / 446.4 MB, free: 10.5 MB / 362.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001219/0.2974, allocations: 87.91 kB / 446.5 MB, free: 10.41 MB / 362.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001125/0.2986, allocations: 0.9507 MB / 447.5 MB, free: 9.52 MB / 362.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.247e-06/0.2986, allocations: 12 kB / 447.5 MB, free: 9.508 MB / 362.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.815e-06/0.2986, allocations: 3.938 kB / 447.5 MB, free: 9.504 MB / 362.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.584e-06/0.2986, allocations: 3.984 kB / 447.5 MB, free: 9.5 MB / 362.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001548/0.3001, allocations: 1.319 MB / 448.8 MB, free: 8.211 MB / 362.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.757e-06/0.3001, allocations: 4 kB / 448.8 MB, free: 8.207 MB / 362.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003929/0.3005, allocations: 167.7 kB / 449 MB, free: 8.043 MB / 362.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005814/0.3011, allocations: 248.9 kB / 449.2 MB, free: 7.797 MB / 362.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.793e-05/0.3012, allocations: 35.97 kB / 449.3 MB, free: 7.762 MB / 362.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003424/0.3015, allocations: 0.594 MB / 449.9 MB, free: 7.145 MB / 362.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.028e-06/0.3015, allocations: 7.938 kB / 449.9 MB, free: 7.137 MB / 362.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001166/0.3027, allocations: 0.9656 MB / 450.8 MB, free: 6.148 MB / 362.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0002448/0.3029, allocations: 159.2 kB / 451 MB, free: 5.992 MB / 362.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.498e-05/0.303, allocations: 24 kB / 451 MB, free: 5.969 MB / 362.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003332/0.3034, allocations: 47.97 kB / 451.1 MB, free: 5.922 MB / 362.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000107/0.3035, allocations: 72.8 kB / 451.1 MB, free: 5.852 MB / 362.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.174e-05/0.3035, allocations: 47.95 kB / 451.2 MB, free: 5.805 MB / 362.7 MB Notification: Performance of sorting global known variables: time 0.0002026/0.3037, allocations: 236.3 kB / 451.4 MB, free: 5.605 MB / 362.7 MB Notification: Performance of sort global known variables: time 2.2e-07/0.3037, allocations: 0 / 451.4 MB, free: 5.605 MB / 362.7 MB Notification: Performance of remove unused functions: time 0.00196/0.3057, allocations: 0.9317 MB / 452.3 MB, free: 4.672 MB / 362.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 4 (volume.medium.p,volume.medium.Xi[1],volume.medium.T,volume.mC_scaled[1]) * 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 (97): * Single equations (assignments): 94 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001562/0.3073, allocations: 0.846 MB / 453.2 MB, free: 3.887 MB / 362.7 MB Notification: Performance of simCode: created initialization part: time 0.001485/0.3087, allocations: 1.393 MB / 454.6 MB, free: 2.449 MB / 362.7 MB Notification: Performance of simCode: created event and clocks part: time 2.026e-05/0.3088, allocations: 16.5 kB / 454.6 MB, free: 2.434 MB / 362.7 MB Notification: Performance of simCode: created simulation system equations: time 0.0003837/0.3092, allocations: 330.5 kB / 454.9 MB, free: 2.121 MB / 362.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001034/0.3102, allocations: 0.4941 MB / 455.4 MB, free: 1.625 MB / 362.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002783/0.313, allocations: 1.907 MB / 457.3 MB, free: 15.69 MB / 378.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000176/0.3131, allocations: 264 kB / 457.6 MB, free: 15.41 MB / 378.7 MB Notification: Performance of simCode: alias equations: time 0.0007199/0.3139, allocations: 291.5 kB / 457.9 MB, free: 15.12 MB / 378.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008749/0.3147, allocations: 454.9 kB / 458.3 MB, free: 14.67 MB / 378.7 MB Notification: Performance of SimCode: time 9.32e-07/0.3147, allocations: 0 / 458.3 MB, free: 14.67 MB / 378.7 MB Notification: Performance of Templates: time 0.03587/0.3506, allocations: 36.3 MB / 494.6 MB, free: 10.34 MB / 410.7 MB " [Timeout remaining time 660] make -j1 -f Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.makefile [Timeout 660] (rm -f Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe ; mkfifo Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe ; head -c 1048576 < Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe >> ../files/Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.sim & ./Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2 -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe 2>&1) [Timeout 240] diffSimulationResults("Modelica_3.2.3_Modelica.Fluid.Examples.TraceSubstances.RoomCO2_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/Modelica/Fluid/Examples/TraceSubstances/RoomCO2/RoomCO2.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 3.823239123914391]