Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.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 0.001711/0.001711, allocations: 115.8 kB / 20.43 MB, free: 1.457 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 0.002066/0.002066, allocations: 213.3 kB / 23.75 MB, free: 4.668 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 1.512/1.512, allocations: 230.6 MB / 257.5 MB, free: 8.012 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.2226/0.2226, allocations: 44.92 MB / 358.8 MB, free: 6.277 MB / 286.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+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.MultiBody.Joints.CheckConstaintTorqueUniversalJoint,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Joints_CheckConstaintTorqueUniversalJoint",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Joints_CheckConstaintTorqueUniversalJoint",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: ModelicaTest requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002151/0.002151, allocations: 67.89 kB / 0.4931 GB, free: 10.71 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3617/0.3639, allocations: 65.48 MB / 0.557 GB, free: 7.5 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint): time 0.01983/0.3837, allocations: 9.529 MB / 0.5663 GB, free: 14.18 MB / 414.1 MB Notification: Performance of NFInst.instExpressions: time 0.01196/0.3957, allocations: 3.851 MB / 0.5701 GB, free: 10.32 MB / 414.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002028/0.3977, allocations: 63.69 kB / 0.5702 GB, free: 10.26 MB / 414.1 MB Notification: Performance of NFTyping.typeComponents: time 0.007098/0.4048, allocations: 2.324 MB / 0.5724 GB, free: 7.926 MB / 414.1 MB Notification: Performance of NFTyping.typeBindings: time 0.006641/0.4115, allocations: 1.658 MB / 0.5741 GB, free: 6.262 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0026/0.4141, allocations: 0.6901 MB / 0.5747 GB, free: 5.57 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.008174/0.4222, allocations: 3.81 MB / 0.5784 GB, free: 1.754 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.004809/0.427, allocations: 2.316 MB / 0.5807 GB, free: 15.38 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003156/0.4302, allocations: 1.312 MB / 0.582 GB, free: 14.07 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004001/0.4342, allocations: 1.865 MB / 0.5838 GB, free: 12.2 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001029/0.4352, allocations: 284 kB / 0.5841 GB, free: 11.92 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003412/0.4386, allocations: 1.194 MB / 0.5852 GB, free: 10.72 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002988/0.4416, allocations: 1.628 MB / 0.5868 GB, free: 9.09 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.004643/0.4463, allocations: 1.884 MB / 0.5887 GB, free: 7.195 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01331/0.4596, allocations: 6.304 MB / 0.5948 GB, free: 0.8672 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.292e-06/0.4596, allocations: 0 / 0.5948 GB, free: 0.8672 MB / 430.1 MB Notification: Performance of FrontEnd: time 2.205e-06/0.4596, allocations: 0 / 0.5948 GB, free: 0.8672 MB / 430.1 MB Notification: Performance of Transformations before backend: time 0.000186/0.4598, allocations: 4 kB / 0.5948 GB, free: 0.8633 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1276 * Number of variables: 1276 Notification: Performance of Generate backend data structure: time 0.01584/0.4756, allocations: 4.276 MB / 0.599 GB, free: 12.53 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.477e-05/0.4757, allocations: 16.03 kB / 0.599 GB, free: 12.51 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001761/0.4774, allocations: 0.616 MB / 0.5996 GB, free: 11.89 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02317/0.5006, allocations: 3.762 MB / 0.6033 GB, free: 8.117 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007222/0.5078, allocations: 2.459 MB / 0.6057 GB, free: 5.602 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000229/0.5081, allocations: 197.3 kB / 0.6059 GB, free: 5.406 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001073/0.5091, allocations: 259.8 kB / 0.6061 GB, free: 5.152 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01695/0.5261, allocations: 8.522 MB / 0.6145 GB, free: 12.01 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001503/0.5262, allocations: 43.58 kB / 0.6145 GB, free: 11.96 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007043/0.5269, allocations: 127.9 kB / 0.6146 GB, free: 11.84 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.003401/0.5303, allocations: 1.746 MB / 0.6163 GB, free: 10.1 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01539/0.5457, allocations: 7.432 MB / 0.6236 GB, free: 2.66 MB / 462.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04933/0.5951, allocations: 33.8 MB / 0.6566 GB, free: 15.86 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006905/0.602, allocations: 2.458 MB / 0.659 GB, free: 13.36 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002565/0.6045, allocations: 1.704 MB / 0.6607 GB, free: 11.65 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000342/0.6049, allocations: 100.5 kB / 0.6608 GB, free: 11.55 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.066e-05/0.6049, allocations: 47.16 kB / 0.6608 GB, free: 11.5 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=135): time 4.879e-06/0.6049, allocations: 4 kB / 0.6608 GB, free: 11.49 MB / 0.4981 GB Notification: Performance of matching and sorting (n=156): time 0.03757/0.6425, allocations: 14.26 MB / 0.6747 GB, free: 13.18 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000123/0.6426, allocations: 175.2 kB / 0.6749 GB, free: 12.97 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005913/0.6485, allocations: 3.526 MB / 0.6783 GB, free: 9.441 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.000246/0.6488, allocations: 49.69 kB / 0.6784 GB, free: 9.387 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.002552/0.6513, allocations: 2.769 MB / 0.6811 GB, free: 6.59 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008496/0.6522, allocations: 0.6282 MB / 0.6817 GB, free: 5.957 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001824/0.654, allocations: 1.072 MB / 0.6828 GB, free: 4.875 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001274/0.6541, allocations: 305.1 kB / 0.683 GB, free: 4.574 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003209/0.6573, allocations: 2.017 MB / 0.685 GB, free: 2.551 MB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006824/0.6642, allocations: 5.222 MB / 0.6901 GB, free: 11.71 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01126/0.6754, allocations: 7.851 MB / 0.6978 GB, free: 2.273 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001187/0.6755, allocations: 36 kB / 0.6978 GB, free: 2.238 MB / 0.5294 GB Notification: Performance of matching and sorting (n=678) (initialization): time 0.01665/0.6922, allocations: 7.795 MB / 0.7054 GB, free: 10.44 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001493/0.6923, allocations: 56 kB / 0.7055 GB, free: 10.38 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.000236/0.6926, allocations: 116 kB / 0.7056 GB, free: 10.27 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002673/0.6952, allocations: 0.9731 MB / 0.7065 GB, free: 9.293 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004142/0.6994, allocations: 1.189 MB / 0.7077 GB, free: 8.102 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01047/0.7099, allocations: 6.799 MB / 0.7143 GB, free: 1.191 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004137/0.714, allocations: 307.6 kB / 0.7146 GB, free: 0.8906 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001006/0.715, allocations: 324 kB / 0.7149 GB, free: 0.5742 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 516 * Number of states: 0 () * Number of discrete variables: 26 (torque.arrow.twoHeadedArrow,torque.arrow.headAtOrigin,universal.cylinderColor[3],universal.cylinderColor[2],universal.cylinderColor[1],torque.color[3],torque.color[2],torque.color[1],bodyCylinder.color[3],bodyCylinder.color[2],bodyCylinder.color[1],bodyCylinder.body.sphereColor[3],bodyCylinder.body.sphereColor[2],bodyCylinder.body.sphereColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (630): * Single equations (assignments): 626 * Array equations: 3 * Algorithm blocks: 0 * 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): 1 system {(2,23,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.004386/0.7194, allocations: 1.856 MB / 0.7168 GB, free: 14.7 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001225/0.7206, allocations: 317.9 kB / 0.7171 GB, free: 14.39 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007208/0.7278, allocations: 3.186 MB / 0.7202 GB, free: 11.19 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.972e-05/0.7279, allocations: 16 kB / 0.7202 GB, free: 11.18 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.189e-05/0.7279, allocations: 12 kB / 0.7202 GB, free: 11.16 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.721e-05/0.7279, allocations: 7.969 kB / 0.7202 GB, free: 11.16 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01665/0.7446, allocations: 7.777 MB / 0.7278 GB, free: 3.309 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.302e-05/0.7446, allocations: 0 / 0.7278 GB, free: 3.309 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001211/0.7458, allocations: 231.6 kB / 0.728 GB, free: 3.082 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002219/0.748, allocations: 0.807 MB / 0.7288 GB, free: 2.273 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001682/0.7482, allocations: 28 kB / 0.7288 GB, free: 2.246 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.2947/1.043, allocations: 6.382 MB / 0.7351 GB, free: 154.7 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.464e-06/1.043, allocations: 0 / 0.7351 GB, free: 154.7 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007456/1.05, allocations: 5.826 MB / 0.7408 GB, free: 152.4 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008841/1.051, allocations: 302.6 kB / 0.741 GB, free: 152.4 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003327/1.052, allocations: 19.78 kB / 0.7411 GB, free: 152.4 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001201/1.053, allocations: 95.78 kB / 0.7412 GB, free: 152.3 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002662/1.053, allocations: 92.84 kB / 0.7412 GB, free: 152.3 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001063/1.053, allocations: 41.59 kB / 0.7413 GB, free: 152.3 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.002642/1.056, allocations: 2.213 MB / 0.7434 GB, free: 151.6 MB / 0.5606 GB Notification: Performance of sort global known variables: time 7e-08/1.056, allocations: 0 / 0.7434 GB, free: 151.6 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.003993/1.06, allocations: 0.8607 MB / 0.7443 GB, free: 151.5 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 4 (universal.phi_a,universal.phi_b,universal.w_a,universal.w_b) * 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 (115): * Single equations (assignments): 111 * Array equations: 3 * Algorithm blocks: 0 * 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): 1 system {(4,18,75.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.007152/1.067, allocations: 6.448 MB / 0.7506 GB, free: 148.6 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.00634/1.073, allocations: 4.706 MB / 0.7552 GB, free: 144.7 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 6.813e-06/1.073, allocations: 0 / 0.7552 GB, free: 144.7 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.002306/1.076, allocations: 1.666 MB / 0.7568 GB, free: 143.2 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002207/1.078, allocations: 379.7 kB / 0.7572 GB, free: 142.9 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04743/1.125, allocations: 40.89 MB / 0.7971 GB, free: 97.74 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002257/1.127, allocations: 2.881 MB / 0.7999 GB, free: 94.82 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.003204/1.131, allocations: 1.711 MB / 0.8016 GB, free: 93.11 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001746/1.132, allocations: 1.554 MB / 0.8031 GB, free: 91.55 MB / 0.5606 GB Notification: Performance of SimCode: time 1.393e-06/1.132, allocations: 0 / 0.8031 GB, free: 91.55 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1056/1.238, allocations: 67.37 MB / 0.8689 GB, free: 24.59 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate platform static: time 22.79/24.03, allocations: 14.48 kB / 0.8689 GB, free: 24.59 MB / 0.5606 GB " [Timeout remaining time 636] (rm -f ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint_res.mat --tempDir=temp_ModelicaTest_4_0_0_ModelicaTest_MultiBody_Joints_CheckConstaintTorqueUniversalJoint_fmu --startTime=0 --stopTime=1 --stepSize=0.00019992 --timeout=50 --tolerance=1e-06 ModelicaTest_4_0_0_ModelicaTest_MultiBody_Joints_CheckConstaintTorqueUniversalJoint.fmu > ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Joints/CheckConstaintTorqueUniversalJoint/CheckConstaintTorqueUniversalJoint.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Joints.CheckConstaintTorqueUniversalJoint.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 27.65162898087874]