Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"[<interactive>:1:22-1:33:writable] Warning: Modelica only supports 32-bit signed integers! Transforming: 13743895347 into a real
[<interactive>:1:1-1:33:writable] Error: Class GC_set_max_heap_size not found in scope <global scope> (looking for a function or record).
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0004838/0.0004838, allocations: 0 / 0, free: 0 / 0
"
[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 0.0004089/0.0004089, allocations: 0 / 0, free: 0 / 0
"
[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 0.3701/0.3701, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 179]
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 0.8113/0.8113, allocations: 0 / 0, free: 0 / 0
"
[Timeout remaining time 179]
Using package Buildings with version 14.0.0 (/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: "" <> buildModelFMU(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,fileNamePrefix="Buildings_latest_Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold",fmuType="me_cs",version="3.0",platforms={"wasm"})
"" <> buildModelFMU(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,fileNamePrefix="Buildings_latest_Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold",fmuType="me_cs",version="3.0",platforms={"wasm"}) [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 3.226e-06/3.226e-06, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd - Absyn->SCode: time 1.85e-05/2.172e-05, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold): time 0.002594/0.002616, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.instExpressions: time 0.004987/0.007603, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFInst.updateImplicitVariability: time 0.0002541/0.007857, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeComponents: time 0.0001983/0.008056, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeBindings: time 0.0002946/0.00835, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFTyping.typeClassSections: time 0.0009695/0.00932, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.flatten: time 0.0007877/0.01011, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.resolveConnections: time 0.0002868/0.01039, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFEvalConstants.evaluate: time 0.0005548/0.01095, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFSimplifyModel.simplify: time 0.0003262/0.01128, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFPackage.collectConstants: time 9.413e-05/0.01137, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFFlatten.collectFunctions: time 0.0001479/0.01152, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFScalarize.scalarize: time 0.0001132/0.01163, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFVerifyModel.verify: time 0.0002543/0.01188, allocations: 0 / 0, free: 0 / 0
Notification: Performance of NFConvertDAE.convert: time 0.0008868/0.01277, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd - DAE generated: time 5.188e-05/0.01282, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FrontEnd: time 5.931e-06/0.01283, allocations: 0 / 0, free: 0 / 0
Notification: Performance of Transformations before backend: time 1.008e-05/0.01284, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 34
 * Number of variables: 34
Notification: Performance of Generate backend data structure: time 0.002408/0.01525, allocations: 0 / 0, free: 0 / 0
Notification: Performance of prepare preOptimizeDAE: time 0.0001259/0.01537, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002258/0.0156, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003435/0.01594, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001056/0.017, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001037/0.0171, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001694/0.01727, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001189/0.01846, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt findStateOrder (simulation): time 1.736e-05/0.01848, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.146e-05/0.01856, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.277e-06/0.01857, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009314/0.0195, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00288/0.02238, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt comSubExp (simulation): time 0.001042/0.02342, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004743/0.0239, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt evalFunc (simulation): time 4.007e-05/0.02394, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001009/0.02495, allocations: 0 / 0, free: 0 / 0
Notification: Performance of pre-optimization done (n=25): time 0.0001048/0.02505, allocations: 0 / 0, free: 0 / 0
Notification: Performance of matching and sorting (n=25): time 0.002208/0.02726, allocations: 0 / 0, free: 0 / 0
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001131/0.02737, allocations: 0 / 0, free: 0 / 0
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005003/0.02787, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectPreVariables (initialization): time 0.0002296/0.0281, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectInitialEqns (initialization): time 0.00021/0.02831, allocations: 0 / 0, free: 0 / 0
Notification: Performance of collectInitialBindings (initialization): time 0.0001419/0.02845, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005339/0.02899, allocations: 0 / 0, free: 0 / 0
Notification: Performance of setup shared object (initialization): time 0.000392/0.02938, allocations: 0 / 0, free: 0 / 0
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007239/0.0301, allocations: 0 / 0, free: 0 / 0
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008146/0.03092, allocations: 0 / 0, free: 0 / 0
Notification: Performance of analyzeInitialSystem (initialization): time 0.001044/0.03196, allocations: 0 / 0, free: 0 / 0
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.983e-06/0.03197, allocations: 0 / 0, free: 0 / 0
Notification: Performance of matching and sorting (n=38) (initialization): time 0.002334/0.0343, allocations: 0 / 0, free: 0 / 0
Notification: Performance of prepare postOptimizeDAE: time 8.875e-05/0.03439, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.022e-05/0.0344, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt tearingSystem (initialization): time 1.975e-05/0.03442, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002762/0.0347, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.338e-05/0.03471, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004575/0.03517, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001297/0.0353, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 4
 * Number of states: 0 ()
 * Number of discrete variables: 31 ($whenCondition6,$whenCondition7,conChaWid.preBre.y,$PRE.conChaWid.preBre.u,$whenCondition1,conPul1.booPul.y,$PRE.conPul1.booPul.y,conChaWid.truFalHol.entryTimeFalse,$PRE.conChaWid.truFalHol.entryTimeFalse,conChaWid.truFalHol.entryTimeTrue,$PRE.conChaWid.truFalHol.entryTimeTrue,conChaWid.truFalHol.not_y,$PRE.conChaWid.truFalHol.not_y,conChaWid.truFalHol.not_u,$PRE.conChaWid.truFalHol.not_u,conChaWid.truFalHol.y,$PRE.conChaWid.truFalHol.y,conChaWid.truFalHol.u,$PRE.conChaWid.truFalHol.u,conChaWid.cycOut.t0,$PRE.conChaWid.cycOut.t0,conChaWid.preBre.u,conChaWid.edg2.y,conChaWid.edg2.u,$PRE.conChaWid.edg2.u,conChaWid.triSam.y,$PRE.conChaWid.triSam.y,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (36):
 * Single equations (assignments): 35
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of prepare postOptimizeDAE: time 0.0006209/0.03592, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002051/0.03612, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001771/0.03789, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.064e-05/0.03791, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.105e-05/0.03792, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.61e-05/0.03793, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003016/0.04095, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.062e-05/0.04096, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001746/0.04113, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt tearingSystem (simulation): time 1.131e-05/0.04114, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.374e-05/0.04124, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.905e-06/0.04125, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.477e-06/0.04125, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001698/0.04295, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt removeConstants (simulation): time 0.0002783/0.04323, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002338/0.04346, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000325/0.04379, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002559/0.04404, allocations: 0 / 0, free: 0 / 0
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.294e-05/0.04413, allocations: 0 / 0, free: 0 / 0
Notification: Performance of sorting global known variables: time 0.0003062/0.04444, allocations: 0 / 0, free: 0 / 0
Notification: Performance of sort global known variables: time 1.129e-05/0.04445, allocations: 0 / 0, free: 0 / 0
Notification: Performance of remove unused functions: time 0.00134/0.04579, allocations: 0 / 0, free: 0 / 0
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 20 (conChaWid.edg2.y,conChaWid.preBre.y,$whenCondition6,$whenCondition7,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,conChaWid.triSam.y,conChaWid.edg2.u,conChaWid.preBre.u,conChaWid.cycOut.t0,conChaWid.truFalHol.u,conChaWid.truFalHol.y,conChaWid.truFalHol.not_u,conChaWid.truFalHol.not_y,conChaWid.truFalHol.entryTimeTrue,conChaWid.truFalHol.entryTimeFalse,conPul1.booPul.y)
 * Number of discrete states: 8 (conChaWid.truFalHol.entryTimeFalse,conChaWid.truFalHol.entryTimeTrue,conChaWid.preBre.u,conChaWid.edg2.u,conChaWid.truFalHol.u,conChaWid.truFalHol.not_u,conChaWid.truFalHol.y,conChaWid.truFalHol.not_y)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (26):
 * Single equations (assignments): 20
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 6
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 0
 * Mixed (continuous/discrete) equation systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.002909/0.0487, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created initialization part: time 0.001636/0.05034, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created event and clocks part: time 7.655e-06/0.05034, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created simulation system equations: time 0.0005892/0.05093, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001801/0.05273, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01156/0.06429, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003281/0.06462, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: alias equations: time 0.0002461/0.06487, allocations: 0 / 0, free: 0 / 0
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006148/0.06548, allocations: 0 / 0, free: 0 / 0
Notification: Performance of SimCode: time 0.00059/0.06607, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU modelDescription.xml: time 0.001412/0.06749, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU model kernel: time 0.001797/0.06928, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU translated model: time 0.02595/0.09523, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU component link: time 8.296e-06/0.09524, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU precompile: time 1.317e-05/0.09525, allocations: 0 / 0, free: 0 / 0
Notification: Performance of FMU write (0 MB unzipped): time 0.0002251/0.09548, allocations: 0 / 0, free: 0 / 0
Notification: Building FMU for platform 'wasm' (1/1).
Notification: Finished FMU for platform 'wasm' (1/1).
"
[Timeout remaining time 300]
simulate(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,startTime=0,stopTime=5,tolerance=1e-06,numberOfIntervals=2500,outputFormat="mat",variableFilter="time|conChaWid.u|conChaWid.y",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold",simflags=" -alarm=240  -emit_protected -lv LOG_STATS -startTime=0 -stopTime=5 -tolerance=1e-06 -stepSize=0.002 -r=Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_res.mat",resimulateExecutable="Buildings_latest_Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.fmu") [Timeout 240]
""
[Timeout remaining time 240]
diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 300]
Reference file matches
simulate(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,startTime=0,stopTime=5,tolerance=1e-06,numberOfIntervals=2500,outputFormat="mat",variableFilter="time|conChaWid.u|conChaWid.y",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold",simflags=" -alarm=240  -emit_protected -lv LOG_STATS -startTime=0 -stopTime=5 -tolerance=1e-06 -stepSize=0.002 -r=Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_me_res.mat -s fmi3:me:daskr",resimulateExecutable="Buildings_latest_Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.fmu") [Timeout 240]
""
[Timeout remaining time 240]
diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_me_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_me.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300]
""
[Timeout remaining time 300]
Reference file matches
simulate(Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold,startTime=0,stopTime=5,tolerance=1e-06,numberOfIntervals=2500,outputFormat="mat",variableFilter="time|conChaWid.u|conChaWid.y",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold",simflags=" -alarm=240  -emit_protected -lv LOG_STATS -startTime=0 -stopTime=5 -tolerance=1e-06 -stepSize=0.002 -r=Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_cs_res.mat -s fmi3:cs",resimulateExecutable="Buildings_latest_Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.fmu") [Timeout 240]
""
[Timeout remaining time 240]
diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_cs_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_CDL_Logical_Validation_VariablePulseMinHold.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.CDL.Logical.Validation.VariablePulseMinHold_cs.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: 2.607290241983719]