Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.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 0.001506/0.001506, allocations: 114.3 kB / 18.94 MB, free: 2.934 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 0.001701/0.001701, allocations: 216.2 kB / 22.25 MB, free: 5.082 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 1.481/1.481, allocations: 230.6 MB / 256 MB, free: 8.039 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo): time 3.278/3.278, allocations: 0.49 GB / 0.7951 GB, free: 33.33 MB / 0.6231 GB " [Timeout remaining time 176] Using package Buildings with version 12.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/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(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1,fileNamePrefix="Buildings_12_Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase1",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1,fileNamePrefix="Buildings_12_Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase1",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Buildings 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 0.003107/0.003107, allocations: 66.97 kB / 1.154 GB, free: 25.73 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3319/0.335, allocations: 176.1 MB / 1.326 GB, free: 1.965 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1): time 0.193/0.5279, allocations: 160.5 MB / 1.483 GB, free: 0.8047 MB / 1.17 GB Notification: Performance of NFInst.instExpressions: time 0.03036/0.5583, allocations: 21.94 MB / 1.504 GB, free: 10.8 MB / 1.201 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00191/0.5602, allocations: 71.44 kB / 1.504 GB, free: 10.73 MB / 1.201 GB Notification: Performance of NFTyping.typeComponents: time 0.002035/0.5623, allocations: 1.169 MB / 1.505 GB, free: 9.559 MB / 1.201 GB Notification: Performance of NFTyping.typeBindings: time 0.002687/0.5649, allocations: 0.9107 MB / 1.506 GB, free: 8.645 MB / 1.201 GB Notification: Performance of NFTyping.typeClassSections: time 0.001601/0.5665, allocations: 406.6 kB / 1.507 GB, free: 8.246 MB / 1.201 GB Notification: Performance of NFFlatten.flatten: time 0.002151/0.5687, allocations: 1.282 MB / 1.508 GB, free: 6.957 MB / 1.201 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001017/0.5697, allocations: 0.5507 MB / 1.508 GB, free: 6.402 MB / 1.201 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00112/0.5708, allocations: 0.5763 MB / 1.509 GB, free: 5.824 MB / 1.201 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00155/0.5724, allocations: 0.9995 MB / 1.51 GB, free: 4.82 MB / 1.201 GB Notification: Performance of NFPackage.collectConstants: time 0.0001882/0.5726, allocations: 68 kB / 1.51 GB, free: 4.754 MB / 1.201 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0003801/0.5729, allocations: 116 kB / 1.51 GB, free: 4.641 MB / 1.201 GB Notification: Performance of NFScalarize.scalarize: time 0.0003532/0.5733, allocations: 316.7 kB / 1.51 GB, free: 4.332 MB / 1.201 GB Notification: Performance of NFVerifyModel.verify: time 0.0006459/0.5739, allocations: 0.489 MB / 1.511 GB, free: 3.84 MB / 1.201 GB Notification: Performance of NFConvertDAE.convert: time 0.001678/0.5756, allocations: 1.221 MB / 1.512 GB, free: 2.613 MB / 1.201 GB Notification: Performance of FrontEnd - DAE generated: time 6.372e-06/0.5756, allocations: 4 kB / 1.512 GB, free: 2.609 MB / 1.201 GB Notification: Performance of FrontEnd: time 2.073e-06/0.5756, allocations: 0 / 1.512 GB, free: 2.609 MB / 1.201 GB Notification: Performance of Transformations before backend: time 3.838e-05/0.5757, allocations: 0 / 1.512 GB, free: 2.609 MB / 1.201 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 107 * Number of variables: 107 Notification: Performance of Generate backend data structure: time 0.002757/0.5784, allocations: 1.501 MB / 1.514 GB, free: 1.07 MB / 1.201 GB Notification: Performance of prepare preOptimizeDAE: time 4.255e-05/0.5785, allocations: 15.97 kB / 1.514 GB, free: 1.055 MB / 1.201 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001147/0.5786, allocations: 82.7 kB / 1.514 GB, free: 0.9648 MB / 1.201 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002562/0.5788, allocations: 144 kB / 1.514 GB, free: 0.8242 MB / 1.201 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001047/0.5799, allocations: 0.6179 MB / 1.514 GB, free: 168 kB / 1.201 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001484/0.58, allocations: 100.4 kB / 1.514 GB, free: 56 kB / 1.201 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.397e-05/0.5801, allocations: 48 kB / 1.515 GB, free: 8 kB / 1.201 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001027/0.5811, allocations: 0.5145 MB / 1.515 GB, free: 15.48 MB / 1.217 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.397e-05/0.5812, allocations: 7.984 kB / 1.515 GB, free: 15.48 MB / 1.217 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.386e-05/0.5812, allocations: 16 kB / 1.515 GB, free: 15.46 MB / 1.217 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.397e-05/0.5812, allocations: 8 kB / 1.515 GB, free: 15.45 MB / 1.217 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008914/0.5821, allocations: 419.7 kB / 1.515 GB, free: 15.04 MB / 1.217 GB 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 0.003955/0.5861, allocations: 2.692 MB / 1.518 GB, free: 12.12 MB / 1.217 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00102/0.5871, allocations: 423.9 kB / 1.518 GB, free: 11.7 MB / 1.217 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006743/0.5878, allocations: 285.3 kB / 1.519 GB, free: 11.42 MB / 1.217 GB Notification: Performance of preOpt evalFunc (simulation): time 4.041e-05/0.5878, allocations: 4.328 kB / 1.519 GB, free: 11.41 MB / 1.217 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005845/0.5884, allocations: 288.5 kB / 1.519 GB, free: 11.12 MB / 1.217 GB Notification: Performance of pre-optimization done (n=44): time 2.285e-06/0.5884, allocations: 0 / 1.519 GB, free: 11.12 MB / 1.217 GB Notification: Performance of matching and sorting (n=44): time 0.002745/0.5911, allocations: 0.9937 MB / 1.52 GB, free: 10.11 MB / 1.217 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.282e-05/0.5912, allocations: 55.41 kB / 1.52 GB, free: 10.05 MB / 1.217 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002195/0.5934, allocations: 1.785 MB / 1.522 GB, free: 8.254 MB / 1.217 GB Notification: Performance of collectPreVariables (initialization): time 5.4e-05/0.5934, allocations: 41.7 kB / 1.522 GB, free: 8.207 MB / 1.217 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004997/0.5939, allocations: 0.5294 MB / 1.522 GB, free: 7.672 MB / 1.217 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001398/0.5941, allocations: 146.8 kB / 1.522 GB, free: 7.527 MB / 1.217 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000177/0.5943, allocations: 110.3 kB / 1.523 GB, free: 7.414 MB / 1.217 GB Notification: Performance of setup shared object (initialization): time 0.0001481/0.5944, allocations: 322 kB / 1.523 GB, free: 7.094 MB / 1.217 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005312/0.5949, allocations: 213.2 kB / 1.523 GB, free: 6.883 MB / 1.217 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006151/0.5956, allocations: 348.1 kB / 1.523 GB, free: 6.496 MB / 1.217 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000995/0.5965, allocations: 0.5147 MB / 1.524 GB, free: 5.934 MB / 1.217 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.839e-06/0.5966, allocations: 0 / 1.524 GB, free: 5.934 MB / 1.217 GB Notification: Performance of matching and sorting (n=69) (initialization): time 0.001667/0.5982, allocations: 0.8109 MB / 1.525 GB, free: 5.113 MB / 1.217 GB Notification: Performance of prepare postOptimizeDAE: time 2.074e-05/0.5982, allocations: 9.406 kB / 1.525 GB, free: 5.105 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.212e-05/0.5983, allocations: 8 kB / 1.525 GB, free: 5.098 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004453/0.5987, allocations: 144.9 kB / 1.525 GB, free: 4.953 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004041/0.5991, allocations: 103.8 kB / 1.525 GB, free: 4.852 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003177/0.6023, allocations: 2.497 MB / 1.527 GB, free: 2.25 MB / 1.217 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004615/0.6027, allocations: 79.69 kB / 1.527 GB, free: 2.172 MB / 1.217 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.526e-05/0.6028, allocations: 27.98 kB / 1.528 GB, free: 2.145 MB / 1.217 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 19 (assEqu.nFai,$PRE.assEqu.nFai,$whenCondition5,$PRE.intGai.nextTimeEvent,$whenCondition4,$PRE.reference.nextTimeEvent,$whenCondition3,$whenCondition1,reference.nextTimeEvent,reference.nextTimeEventScaled,$PRE.reference.nextTimeEventScaled,assEqu.satisfied,$PRE.assEqu.satisfied,mean.y_last,$PRE.mean.y_last,$whenCondition2,intGai.nextTimeEvent,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (54): * Single equations (assignments): 53 * Array equations: 0 * 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 {(1,15,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0005475/0.6034, allocations: 388.9 kB / 1.528 GB, free: 1.758 MB / 1.217 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000166/0.6035, allocations: 131.1 kB / 1.528 GB, free: 1.629 MB / 1.217 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001507/0.605, allocations: 0.7048 MB / 1.529 GB, free: 0.9062 MB / 1.217 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.831e-06/0.605, allocations: 7.938 kB / 1.529 GB, free: 0.8984 MB / 1.217 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.592e-06/0.605, allocations: 4 kB / 1.529 GB, free: 0.8945 MB / 1.217 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.336e-06/0.605, allocations: 3.984 kB / 1.529 GB, free: 0.8906 MB / 1.217 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002629/0.6077, allocations: 1.473 MB / 1.53 GB, free: 15.37 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.767e-06/0.6077, allocations: 0 / 1.53 GB, free: 15.37 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002412/0.6079, allocations: 47.91 kB / 1.53 GB, free: 15.32 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004352/0.6084, allocations: 165.6 kB / 1.53 GB, free: 15.15 MB / 1.232 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.703e-05/0.6084, allocations: 11.98 kB / 1.53 GB, free: 15.14 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004442/0.6128, allocations: 4.079 MB / 1.534 GB, free: 10.84 MB / 1.232 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.462e-06/0.6128, allocations: 0 / 1.534 GB, free: 10.84 MB / 1.232 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001904/0.6147, allocations: 1.009 MB / 1.535 GB, free: 9.809 MB / 1.232 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003185/0.6151, allocations: 143 kB / 1.535 GB, free: 9.668 MB / 1.232 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001176/0.6152, allocations: 15.94 kB / 1.535 GB, free: 9.652 MB / 1.232 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003316/0.6155, allocations: 31.97 kB / 1.536 GB, free: 9.621 MB / 1.232 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001308/0.6156, allocations: 55.89 kB / 1.536 GB, free: 9.566 MB / 1.232 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.147e-05/0.6157, allocations: 12 kB / 1.536 GB, free: 9.555 MB / 1.232 GB Notification: Performance of sorting global known variables: time 0.001662/0.6173, allocations: 1.305 MB / 1.537 GB, free: 8.246 MB / 1.232 GB Notification: Performance of sort global known variables: time 1.21e-07/0.6173, allocations: 0 / 1.537 GB, free: 8.246 MB / 1.232 GB Notification: Performance of remove unused functions: time 0.0008239/0.6182, allocations: 195.8 kB / 1.537 GB, free: 8.055 MB / 1.232 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (mean.x,assEqu.diff,thermalZoneTwoElements.intWallRC.thermCapInt[1].T,thermalZoneTwoElements.extWallRC.thermCapExt[1].T) * Number of discrete variables: 12 ($whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,mean.y_last,assEqu.nFai,assEqu.satisfied,reference.nextTimeEventScaled,reference.nextTimeEvent,intGai.nextTimeEventScaled,intGai.nextTimeEvent) * Number of discrete states: 7 (intGai.nextTimeEvent,reference.nextTimeEvent,mean.x,assEqu.satisfied,assEqu.nFai,reference.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (29): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * 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): 2 systems {(2,12,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.003966/0.6221, allocations: 1.917 MB / 1.539 GB, free: 6.285 MB / 1.232 GB Notification: Performance of simCode: created initialization part: time 0.001574/0.6237, allocations: 0.6582 MB / 1.54 GB, free: 5.613 MB / 1.232 GB Notification: Performance of simCode: created event and clocks part: time 3.677e-06/0.6237, allocations: 0 / 1.54 GB, free: 5.613 MB / 1.232 GB Notification: Performance of simCode: created simulation system equations: time 0.0009705/0.6247, allocations: 0.513 MB / 1.54 GB, free: 5.074 MB / 1.232 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001058/0.6257, allocations: 209.3 kB / 1.54 GB, free: 4.883 MB / 1.232 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01373/0.6395, allocations: 8.587 MB / 1.549 GB, free: 12.07 MB / 1.248 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009873/0.6405, allocations: 1.157 MB / 1.55 GB, free: 10.88 MB / 1.248 GB Notification: Performance of simCode: alias equations: time 0.0003388/0.6408, allocations: 92.83 kB / 1.55 GB, free: 10.79 MB / 1.248 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005372/0.6413, allocations: 415.2 kB / 1.55 GB, free: 10.38 MB / 1.248 GB Notification: Performance of SimCode: time 8.52e-07/0.6413, allocations: 0 / 1.55 GB, free: 10.38 MB / 1.248 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06576/0.7071, allocations: 21.61 MB / 1.571 GB, free: 4.973 MB / 1.264 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.17/14.88, allocations: 7.516 kB / 1.571 GB, free: 4.969 MB / 1.264 GB " [Timeout remaining time 285] (rm -f Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.pipe ; mkfifo Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.pipe ; head -c 1048576 < Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.pipe >> ../files/Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1_res.mat --tempDir=temp_Buildings_12_Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase1_fmu --startTime=0 --stopTime=5.184e+06 --stepSize=60 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase1.fmu > Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_ThermalZones_ReducedOrder_Validation_VDI6007_TestCase1.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.ThermalZones.ReducedOrder.Validation.VDI6007.TestCase1.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 299] Reference file matches [Calling sys.exit(0), Time elapsed: 25.618955893907696]