Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.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 0.0009767/0.0009767, allocations: 80.39 kB / 20.97 MB, free: 3.574 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 0.001206/0.001206, allocations: 165 kB / 24.28 MB, free: 276 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 0.9912/0.9912, allocations: 177.1 MB / 204.6 MB, free: 5.617 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo", uses=false) [Timeout 180] "[/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/package.mo): time 0.6688/0.6688, allocations: 110.3 MB / 371.3 MB, free: 12.53 MB / 346.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:44:3-56:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:58:3-65:19:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:67:3-72:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/BoundaryConditions/Scenarios/CombiTimeTable.mo:74:3-79:20:writable] Warning: External function annotation should occur on the external-clause, not on the function. " [Timeout remaining time 179] Using package BuildSysPro with version 3.6.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.7.0/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(BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse,tolerance=1e-06,outputFormat="empty",numberOfIntervals=30000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse") translateModel(BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse,tolerance=1e-06,outputFormat="empty",numberOfIntervals=30000,variableFilter="",fileNamePrefix="BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.635e-06/2.635e-06, allocations: 0 / 475.1 MB, free: 15.3 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.298e-05/3.562e-05, allocations: 3.516 kB / 475.1 MB, free: 15.3 MB / 410.7 MB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse): time 0.4833/0.4833, allocations: 193.9 MB / 0.6534 GB, free: 12.46 MB / 0.5573 GB Notification: Performance of NFInst.instExpressions: time 0.01394/0.4973, allocations: 10 MB / 0.6632 GB, free: 12.36 MB / 0.5573 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002417/0.4997, allocations: 59.78 kB / 0.6632 GB, free: 12.36 MB / 0.5573 GB Notification: Performance of NFTyping.typeComponents: time 0.002019/0.5017, allocations: 0.7192 MB / 0.6639 GB, free: 12.35 MB / 0.5573 GB Notification: Performance of NFTyping.typeBindings: time 0.00636/0.5081, allocations: 2.524 MB / 0.6664 GB, free: 12.25 MB / 0.5573 GB Notification: Performance of NFTyping.typeClassSections: time 0.003534/0.5116, allocations: 1.663 MB / 0.668 GB, free: 12.21 MB / 0.5573 GB Notification: Performance of NFFlatten.flatten: time 0.004682/0.5163, allocations: 4.196 MB / 0.6721 GB, free: 11.98 MB / 0.5573 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002858/0.5191, allocations: 1.716 MB / 0.6738 GB, free: 27.8 MB / 0.573 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002933/0.5221, allocations: 2.101 MB / 0.6758 GB, free: 27.64 MB / 0.573 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002087/0.5242, allocations: 1.26 MB / 0.6771 GB, free: 27.52 MB / 0.573 GB Notification: Performance of NFPackage.collectConstants: time 0.0005576/0.5247, allocations: 278.3 kB / 0.6773 GB, free: 27.52 MB / 0.573 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004296/0.529, allocations: 1.973 MB / 0.6793 GB, free: 27.36 MB / 0.573 GB Notification: Performance of NFScalarize.scalarize: time 0.001093/0.5301, allocations: 0.9069 MB / 0.6802 GB, free: 27.25 MB / 0.573 GB Notification: Performance of NFVerifyModel.verify: time 0.002049/0.5321, allocations: 0.9013 MB / 0.681 GB, free: 27.15 MB / 0.573 GB Notification: Performance of NFConvertDAE.convert: time 0.007532/0.5397, allocations: 3.184 MB / 0.6841 GB, free: 26.78 MB / 0.573 GB Notification: Performance of FrontEnd - DAE generated: time 7.334e-06/0.5397, allocations: 2.672 kB / 0.6841 GB, free: 26.78 MB / 0.573 GB Notification: Performance of FrontEnd: time 1.563e-06/0.5397, allocations: 0.8125 kB / 0.6841 GB, free: 26.78 MB / 0.573 GB Notification: Performance of Transformations before backend: time 9.331e-05/0.5398, allocations: 1.312 kB / 0.6841 GB, free: 26.78 MB / 0.573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 487 * Number of variables: 487 Notification: Performance of Generate backend data structure: time 0.006567/0.5463, allocations: 2.937 MB / 0.687 GB, free: 25.45 MB / 0.573 GB Notification: Performance of prepare preOptimizeDAE: time 4.826e-05/0.5464, allocations: 9.625 kB / 0.687 GB, free: 25.45 MB / 0.573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002959/0.5494, allocations: 0.6817 MB / 0.6877 GB, free: 25.27 MB / 0.573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002607/0.552, allocations: 1.428 MB / 0.6891 GB, free: 24.87 MB / 0.573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001372/0.5521, allocations: 146.1 kB / 0.6892 GB, free: 24.86 MB / 0.573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003003/0.5524, allocations: 193.8 kB / 0.6894 GB, free: 24.86 MB / 0.573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003189/0.5556, allocations: 1.897 MB / 0.6913 GB, free: 24.18 MB / 0.573 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.525e-05/0.5556, allocations: 4.281 kB / 0.6913 GB, free: 24.18 MB / 0.573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001653/0.5558, allocations: 77.34 kB / 0.6913 GB, free: 24.18 MB / 0.573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.43e-05/0.5559, allocations: 78.36 kB / 0.6914 GB, free: 24.18 MB / 0.573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003088/0.559, allocations: 1.527 MB / 0.6929 GB, free: 24.15 MB / 0.573 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 0.007653/0.5666, allocations: 4.694 MB / 0.6975 GB, free: 22.99 MB / 0.573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002016/0.5687, allocations: 1.398 MB / 0.6989 GB, free: 22.93 MB / 0.573 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008254/0.5695, allocations: 0.5058 MB / 0.6993 GB, free: 22.91 MB / 0.573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005736/0.5701, allocations: 204.3 kB / 0.6995 GB, free: 22.91 MB / 0.573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001237/0.5713, allocations: 0.9758 MB / 0.7005 GB, free: 22.54 MB / 0.573 GB Notification: Performance of pre-optimization done (n=207): time 4.499e-06/0.5713, allocations: 2.781 kB / 0.7005 GB, free: 22.54 MB / 0.573 GB Notification: Performance of matching and sorting (n=207): time 0.004064/0.5754, allocations: 1.783 MB / 0.7022 GB, free: 22.34 MB / 0.573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.123e-05/0.5755, allocations: 214.7 kB / 0.7024 GB, free: 22.12 MB / 0.573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001053/0.5765, allocations: 0.9288 MB / 0.7034 GB, free: 21.9 MB / 0.573 GB Notification: Performance of collectPreVariables (initialization): time 0.0001176/0.5766, allocations: 61.14 kB / 0.7034 GB, free: 21.87 MB / 0.573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004724/0.5771, allocations: 0.7905 MB / 0.7042 GB, free: 21.5 MB / 0.573 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004769/0.5776, allocations: 0.7217 MB / 0.7049 GB, free: 21.02 MB / 0.573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004642/0.578, allocations: 347 kB / 0.7052 GB, free: 20.99 MB / 0.573 GB Notification: Performance of setup shared object (initialization): time 0.0001275/0.5782, allocations: 477.3 kB / 0.7057 GB, free: 20.52 MB / 0.573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007284/0.5789, allocations: 324.3 kB / 0.706 GB, free: 20.52 MB / 0.573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009277/0.5798, allocations: 0.7384 MB / 0.7067 GB, free: 20.14 MB / 0.573 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001286/0.5811, allocations: 0.9533 MB / 0.7076 GB, free: 20.01 MB / 0.573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.861e-06/0.5811, allocations: 0 / 0.7076 GB, free: 20.01 MB / 0.573 GB Notification: Performance of matching and sorting (n=231) (initialization): time 0.002123/0.5832, allocations: 1.371 MB / 0.709 GB, free: 19.84 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 2.154e-05/0.5833, allocations: 3.75 kB / 0.709 GB, free: 19.84 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.091e-05/0.5833, allocations: 8.438 kB / 0.709 GB, free: 19.83 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004901/0.5838, allocations: 130.3 kB / 0.7091 GB, free: 19.82 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008828/0.5846, allocations: 379.2 kB / 0.7095 GB, free: 19.82 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001438/0.5861, allocations: 1.904 MB / 0.7113 GB, free: 18.07 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009595/0.587, allocations: 145 kB / 0.7115 GB, free: 18 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001065/0.5871, allocations: 76.58 kB / 0.7115 GB, free: 18 MB / 0.573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 8 (weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,$whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (229): * Single equations (assignments): 228 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0006231/0.5878, allocations: 260.8 kB / 0.7118 GB, free: 17.83 MB / 0.573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002683/0.588, allocations: 233.1 kB / 0.712 GB, free: 17.74 MB / 0.573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002434/0.5905, allocations: 1.661 MB / 0.7136 GB, free: 17.56 MB / 0.573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.427e-05/0.5905, allocations: 23.72 kB / 0.7137 GB, free: 17.56 MB / 0.573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.514e-06/0.5905, allocations: 1.125 kB / 0.7137 GB, free: 17.56 MB / 0.573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001851/0.5923, allocations: 1.464 MB / 0.7151 GB, free: 17.05 MB / 0.573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005278/0.5976, allocations: 3.424 MB / 0.7184 GB, free: 16.37 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.406e-06/0.5976, allocations: 5.594 kB / 0.7184 GB, free: 16.37 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008893/0.5985, allocations: 370 kB / 0.7188 GB, free: 16.37 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005259/0.599, allocations: 171.1 kB / 0.719 GB, free: 16.34 MB / 0.573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001181/0.5992, allocations: 53.8 kB / 0.719 GB, free: 16.34 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002334/0.6015, allocations: 3.724 MB / 0.7226 GB, free: 12.85 MB / 0.573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.591e-06/0.6015, allocations: 10.22 kB / 0.7227 GB, free: 12.85 MB / 0.573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003721/0.6052, allocations: 2.213 MB / 0.7248 GB, free: 12.22 MB / 0.573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008238/0.6061, allocations: 451.5 kB / 0.7252 GB, free: 11.99 MB / 0.573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001866/0.6062, allocations: 46.88 kB / 0.7253 GB, free: 11.96 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000637/0.6069, allocations: 68.06 kB / 0.7254 GB, free: 11.93 MB / 0.573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002518/0.6071, allocations: 163.1 kB / 0.7255 GB, free: 11.91 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.776e-05/0.6072, allocations: 72.45 kB / 0.7256 GB, free: 11.89 MB / 0.573 GB Notification: Performance of sorting global known variables: time 0.0007255/0.608, allocations: 0.5833 MB / 0.7261 GB, free: 11.65 MB / 0.573 GB Notification: Performance of sort global known variables: time 7e-08/0.608, allocations: 0.6562 kB / 0.7261 GB, free: 11.65 MB / 0.573 GB Notification: Performance of remove unused functions: time 0.001894/0.6098, allocations: 0.7221 MB / 0.7269 GB, free: 11.46 MB / 0.573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 20 * Number of states: 5 (simpleZone.volRoom.dynBal.medium.Xi[1],simpleZone.volRoom.dynBal.U,simpleZone.volRoom.dynBal.m,simpleZone.door.mExcAB,simpleZone.door.mExcBA) * Number of discrete variables: 4 ($whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of discrete states: 2 (weaDat.conTim.tNext,weaDat.conTimMin.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (216): * Single equations (assignments): 212 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001659/0.6115, allocations: 0.7739 MB / 0.7276 GB, free: 11.25 MB / 0.573 GB Notification: Performance of simCode: created initialization part: time 0.002092/0.6136, allocations: 1.285 MB / 0.7289 GB, free: 10.89 MB / 0.573 GB Notification: Performance of simCode: created event and clocks part: time 5.361e-06/0.6136, allocations: 0.7812 kB / 0.7289 GB, free: 10.89 MB / 0.573 GB Notification: Performance of simCode: created simulation system equations: time 0.001105/0.6147, allocations: 1.017 MB / 0.7299 GB, free: 10.44 MB / 0.573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002013/0.6167, allocations: 0.7418 MB / 0.7306 GB, free: 10.25 MB / 0.573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005432/0.6221, allocations: 3.658 MB / 0.7342 GB, free: 8.273 MB / 0.573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003897/0.6225, allocations: 437.8 kB / 0.7346 GB, free: 8.137 MB / 0.573 GB Notification: Performance of simCode: alias equations: time 0.001506/0.624, allocations: 0.5896 MB / 0.7351 GB, free: 8 MB / 0.573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004464/0.6245, allocations: 178.3 kB / 0.7353 GB, free: 7.98 MB / 0.573 GB Notification: Performance of SimCode: time 1.563e-06/0.6245, allocations: 0 / 0.7353 GB, free: 7.98 MB / 0.573 GB Notification: Performance of Templates: time 0.04649/0.671, allocations: 33.26 MB / 0.7678 GB, free: 1.168 MB / 0.5886 GB " [Timeout remaining time 659] make -j1 -f BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.makefile [Timeout 660] (rm -f BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.sim & ./BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse -abortSlowSimulation -alarm=240 -lv LOG_STATS > BuildSysPro_BuildSysPro.IBPSA.Experimental.Benchmarks.AirFlow.Examples.ZoneStepResponse.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 5.433946589007974]