Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Templates.Components.Validation.Sensors.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 0.001581/0.001581, allocations: 79.73 kB / 19.76 MB, free: 1.879 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 0.001661/0.001661, allocations: 161.2 kB / 23.01 MB, free: 4.574 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 1.443/1.443, allocations: 177.2 MB / 203.4 MB, free: 8.961 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo): time 2.852/2.852, allocations: 394.2 MB / 0.6386 GB, free: 11.91 MB / 0.6075 GB " [Timeout remaining time 176] Using package Buildings with version 13.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 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(Buildings.Templates.Components.Validation.Sensors,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|dp.y|dp.senRelPre.p_rel|hum.y|hum.toDryAir.XiDry|ent.y|ent.senSpeEnt.h_out|tem.y|tem.senTem.T|vol.y|vol.senVolFlo.V_flow",fileNamePrefix="Buildings_latest_Buildings.Templates.Components.Validation.Sensors") translateModel(Buildings.Templates.Components.Validation.Sensors,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|dp.y|dp.senRelPre.p_rel|hum.y|hum.toDryAir.XiDry|ent.y|ent.senSpeEnt.h_out|tem.y|tem.senTem.T|vol.y|vol.senVolFlo.V_flow",fileNamePrefix="Buildings_latest_Buildings.Templates.Components.Validation.Sensors") [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 0.002102/0.002102, allocations: 67.88 kB / 1.009 GB, free: 14.49 MB / 0.9669 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.9008/0.9029, allocations: 181.8 MB / 1.187 GB, free: 16.2 MB / 1.076 GB Notification: Performance of NFInst.instantiate(Buildings.Templates.Components.Validation.Sensors): time 0.2925/1.195, allocations: 233.3 MB / 1.414 GB, free: 12.29 MB / 1.264 GB Notification: Performance of NFInst.instExpressions: time 0.02527/1.221, allocations: 17.57 MB / 1.432 GB, free: 10.66 MB / 1.279 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001868/1.223, allocations: 71.38 kB / 1.432 GB, free: 10.59 MB / 1.279 GB Notification: Performance of NFTyping.typeComponents: time 0.002215/1.225, allocations: 0.7374 MB / 1.432 GB, free: 9.848 MB / 1.279 GB Notification: Performance of NFTyping.typeBindings: time 0.005112/1.23, allocations: 1.873 MB / 1.434 GB, free: 7.969 MB / 1.279 GB Notification: Performance of NFTyping.typeClassSections: time 0.003976/1.234, allocations: 1.482 MB / 1.436 GB, free: 6.488 MB / 1.279 GB Notification: Performance of NFFlatten.flatten: time 0.004376/1.238, allocations: 3.065 MB / 1.439 GB, free: 3.414 MB / 1.279 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001524/1.24, allocations: 0.9495 MB / 1.44 GB, free: 2.438 MB / 1.279 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008827/1.249, allocations: 3.438 MB / 1.443 GB, free: 15 MB / 1.295 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001985/1.251, allocations: 0.949 MB / 1.444 GB, free: 14.04 MB / 1.295 GB Notification: Performance of NFPackage.collectConstants: time 0.0001866/1.251, allocations: 104 kB / 1.444 GB, free: 13.94 MB / 1.295 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00267/1.253, allocations: 1.231 MB / 1.445 GB, free: 12.71 MB / 1.295 GB Notification: Performance of NFScalarize.scalarize: time 0.0004807/1.254, allocations: 442.5 kB / 1.446 GB, free: 12.27 MB / 1.295 GB Notification: Performance of NFVerifyModel.verify: time 0.0007872/1.255, allocations: 0.5755 MB / 1.446 GB, free: 11.7 MB / 1.295 GB Notification: Performance of NFConvertDAE.convert: time 0.003455/1.258, allocations: 2.047 MB / 1.448 GB, free: 9.641 MB / 1.295 GB Notification: Performance of FrontEnd - DAE generated: time 6.482e-06/1.258, allocations: 4 kB / 1.448 GB, free: 9.637 MB / 1.295 GB Notification: Performance of FrontEnd: time 2.134e-06/1.258, allocations: 0 / 1.448 GB, free: 9.637 MB / 1.295 GB Notification: Performance of Transformations before backend: time 3.238e-05/1.258, allocations: 0 / 1.448 GB, free: 9.637 MB / 1.295 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 230 * Number of variables: 230 Notification: Performance of Generate backend data structure: time 0.002732/1.261, allocations: 1.562 MB / 1.45 GB, free: 8.035 MB / 1.295 GB Notification: Performance of prepare preOptimizeDAE: time 4.091e-05/1.261, allocations: 8.031 kB / 1.45 GB, free: 8.027 MB / 1.295 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001408/1.262, allocations: 286.9 kB / 1.45 GB, free: 7.746 MB / 1.295 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001549/1.264, allocations: 0.8146 MB / 1.451 GB, free: 6.895 MB / 1.295 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.911e-05/1.264, allocations: 73.94 kB / 1.451 GB, free: 6.824 MB / 1.295 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001377/1.264, allocations: 95.95 kB / 1.451 GB, free: 6.73 MB / 1.295 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001549/1.266, allocations: 1.003 MB / 1.452 GB, free: 5.66 MB / 1.295 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.528e-05/1.266, allocations: 3.938 kB / 1.452 GB, free: 5.656 MB / 1.295 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.675e-05/1.266, allocations: 40 kB / 1.452 GB, free: 5.617 MB / 1.295 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.121e-05/1.266, allocations: 20 kB / 1.452 GB, free: 5.598 MB / 1.295 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0011/1.267, allocations: 0.6478 MB / 1.453 GB, free: 4.953 MB / 1.295 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.004194/1.271, allocations: 3.377 MB / 1.456 GB, free: 1.469 MB / 1.295 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004358/1.272, allocations: 238.8 kB / 1.456 GB, free: 1.227 MB / 1.295 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002117/1.272, allocations: 128.8 kB / 1.456 GB, free: 1.098 MB / 1.295 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005086/1.272, allocations: 79.84 kB / 1.456 GB, free: 1.02 MB / 1.295 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.815e-05/1.272, allocations: 38.5 kB / 1.456 GB, free: 0.9727 MB / 1.295 GB Notification: Performance of pre-optimization done (n=29): time 1.984e-06/1.272, allocations: 4 kB / 1.456 GB, free: 0.9688 MB / 1.295 GB Notification: Performance of matching and sorting (n=29): time 0.001027/1.273, allocations: 463.6 kB / 1.457 GB, free: 0.5117 MB / 1.295 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.641e-05/1.273, allocations: 51.41 kB / 1.457 GB, free: 460 kB / 1.295 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001053/1.274, allocations: 0.7925 MB / 1.458 GB, free: 15.63 MB / 1.311 GB Notification: Performance of collectPreVariables (initialization): time 3.668e-05/1.274, allocations: 33.7 kB / 1.458 GB, free: 15.59 MB / 1.311 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005747/1.275, allocations: 0.6165 MB / 1.458 GB, free: 14.96 MB / 1.311 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001188/1.275, allocations: 114.9 kB / 1.458 GB, free: 14.86 MB / 1.311 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001737/1.275, allocations: 122.2 kB / 1.458 GB, free: 14.73 MB / 1.311 GB Notification: Performance of setup shared object (initialization): time 0.0001665/1.275, allocations: 322 kB / 1.459 GB, free: 14.41 MB / 1.311 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002677/1.276, allocations: 155.3 kB / 1.459 GB, free: 14.25 MB / 1.311 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008466/1.277, allocations: 0.7253 MB / 1.46 GB, free: 13.33 MB / 1.311 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007453/1.277, allocations: 0.5339 MB / 1.46 GB, free: 12.69 MB / 1.311 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.539e-06/1.277, allocations: 0 / 1.46 GB, free: 12.69 MB / 1.311 GB Notification: Performance of matching and sorting (n=67) (initialization): time 0.001005/1.278, allocations: 0.5987 MB / 1.461 GB, free: 12.09 MB / 1.311 GB Notification: Performance of prepare postOptimizeDAE: time 3.302e-05/1.278, allocations: 15.98 kB / 1.461 GB, free: 12.07 MB / 1.311 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.201e-05/1.278, allocations: 4 kB / 1.461 GB, free: 12.07 MB / 1.311 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.518e-05/1.278, allocations: 15.94 kB / 1.461 GB, free: 12.05 MB / 1.311 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008913/1.279, allocations: 175.8 kB / 1.461 GB, free: 11.88 MB / 1.311 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001988/1.281, allocations: 2.364 MB / 1.463 GB, free: 9.422 MB / 1.311 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005625/1.282, allocations: 63.61 kB / 1.463 GB, free: 9.359 MB / 1.311 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.824e-05/1.282, allocations: 28 kB / 1.463 GB, free: 9.332 MB / 1.311 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0006572/1.283, allocations: 369.3 kB / 1.464 GB, free: 8.965 MB / 1.311 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007573/1.283, allocations: 0.7178 MB / 1.464 GB, free: 8.051 MB / 1.311 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007143/1.284, allocations: 0.5268 MB / 1.465 GB, free: 7.422 MB / 1.311 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.44e-06/1.284, allocations: 4 kB / 1.465 GB, free: 7.418 MB / 1.311 GB Notification: Performance of matching and sorting (n=67) (initialization_lambda0): time 0.001/1.285, allocations: 0.5901 MB / 1.465 GB, free: 6.82 MB / 1.311 GB Notification: Performance of prepare postOptimizeDAE: time 1.757e-05/1.285, allocations: 12.97 kB / 1.465 GB, free: 6.809 MB / 1.311 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.665e-06/1.285, allocations: 4 kB / 1.465 GB, free: 6.805 MB / 1.311 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.313e-05/1.285, allocations: 16 kB / 1.465 GB, free: 6.789 MB / 1.311 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004579/1.286, allocations: 139.7 kB / 1.466 GB, free: 6.652 MB / 1.311 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.107e-05/1.286, allocations: 11.94 kB / 1.466 GB, free: 6.641 MB / 1.311 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004809/1.286, allocations: 51.72 kB / 1.466 GB, free: 6.59 MB / 1.311 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.838e-05/1.286, allocations: 35.94 kB / 1.466 GB, free: 6.555 MB / 1.311 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 34 * 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 (67): * Single equations (assignments): 63 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002091/1.286, allocations: 216.9 kB / 1.466 GB, free: 6.336 MB / 1.311 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001268/1.286, allocations: 91.44 kB / 1.466 GB, free: 6.246 MB / 1.311 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009272/1.287, allocations: 398.9 kB / 1.466 GB, free: 5.848 MB / 1.311 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.04e-06/1.287, allocations: 0 / 1.466 GB, free: 5.848 MB / 1.311 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.801e-06/1.287, allocations: 0 / 1.466 GB, free: 5.848 MB / 1.311 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.412e-06/1.287, allocations: 7.938 kB / 1.466 GB, free: 5.84 MB / 1.311 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002366/1.29, allocations: 1.134 MB / 1.468 GB, free: 4.637 MB / 1.311 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.162e-06/1.29, allocations: 4.062 kB / 1.468 GB, free: 4.633 MB / 1.311 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004073/1.29, allocations: 87.86 kB / 1.468 GB, free: 4.547 MB / 1.311 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.125e-06/1.29, allocations: 7.938 kB / 1.468 GB, free: 4.539 MB / 1.311 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.117e-05/1.29, allocations: 12 kB / 1.468 GB, free: 4.527 MB / 1.311 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001598/1.292, allocations: 2.348 MB / 1.47 GB, free: 2.086 MB / 1.311 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.809e-06/1.292, allocations: 4 kB / 1.47 GB, free: 2.082 MB / 1.311 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009291/1.293, allocations: 0.6517 MB / 1.471 GB, free: 1.383 MB / 1.311 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002657/1.293, allocations: 119.3 kB / 1.471 GB, free: 1.266 MB / 1.311 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.082e-05/1.293, allocations: 8 kB / 1.471 GB, free: 1.258 MB / 1.311 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002828/1.293, allocations: 11.95 kB / 1.471 GB, free: 1.246 MB / 1.311 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.396e-05/1.293, allocations: 27.91 kB / 1.471 GB, free: 1.219 MB / 1.311 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.422e-05/1.293, allocations: 15.92 kB / 1.471 GB, free: 1.203 MB / 1.311 GB Notification: Performance of sorting global known variables: time 0.0007226/1.294, allocations: 0.5198 MB / 1.471 GB, free: 0.6719 MB / 1.311 GB Notification: Performance of sort global known variables: time 9e-08/1.294, allocations: 0 / 1.471 GB, free: 0.6719 MB / 1.311 GB Notification: Performance of remove unused functions: time 0.001452/1.296, allocations: 0.5454 MB / 1.472 GB, free: 128 kB / 1.311 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 3 (hum.senMasFra.X,ent.senSpeEnt.h_out,tem.senTem.T) * 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 (29): * Single equations (assignments): 25 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0003679/1.296, allocations: 179.2 kB / 1.472 GB, free: 15.94 MB / 1.326 GB Notification: Performance of simCode: created initialization part: time 0.00169/1.298, allocations: 0.6356 MB / 1.473 GB, free: 15.31 MB / 1.326 GB Notification: Performance of simCode: created event and clocks part: time 5.521e-06/1.298, allocations: 9.875 kB / 1.473 GB, free: 15.3 MB / 1.326 GB Notification: Performance of simCode: created simulation system equations: time 0.0003992/1.298, allocations: 170.2 kB / 1.473 GB, free: 15.14 MB / 1.326 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001592/1.3, allocations: 349.2 kB / 1.473 GB, free: 14.8 MB / 1.326 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00294/1.303, allocations: 1.861 MB / 1.475 GB, free: 12.88 MB / 1.326 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000642/1.303, allocations: 0.5191 MB / 1.475 GB, free: 12.33 MB / 1.326 GB Notification: Performance of simCode: alias equations: time 0.0006561/1.304, allocations: 198.8 kB / 1.476 GB, free: 12.13 MB / 1.326 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001325/1.304, allocations: 64.5 kB / 1.476 GB, free: 12.07 MB / 1.326 GB Notification: Performance of SimCode: time 7.61e-07/1.304, allocations: 0 / 1.476 GB, free: 12.07 MB / 1.326 GB Notification: Performance of Templates: time 0.02565/1.33, allocations: 12.72 MB / 1.488 GB, free: 15.67 MB / 1.342 GB " [Timeout remaining time 299] make -j1 -f Buildings_latest_Buildings.Templates.Components.Validation.Sensors.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.Templates.Components.Validation.Sensors.pipe ; mkfifo Buildings_latest_Buildings.Templates.Components.Validation.Sensors.pipe ; head -c 1048576 < Buildings_latest_Buildings.Templates.Components.Validation.Sensors.pipe >> ../files/Buildings_latest_Buildings.Templates.Components.Validation.Sensors.sim & ./Buildings_latest_Buildings.Templates.Components.Validation.Sensors -abortSlowSimulation -alarm=800 -s ida -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Templates.Components.Validation.Sensors.pipe 2>&1) [Timeout 800] diffSimulationResults("Buildings_latest_Buildings.Templates.Components.Validation.Sensors_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Templates_Components_Validation_Sensors.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Templates.Components.Validation.Sensors.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 9.773979251040146]