Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001616/0.001616, allocations: 113.1 kB / 17.6 MB, free: 4.703 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001767/0.001767, allocations: 186.7 kB / 20.78 MB, free: 1.547 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.582/1.582, allocations: 225.6 MB / 249.4 MB, free: 3.16 MB / 190.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.969/2.969, allocations: 476.7 MB / 0.7628 GB, free: 15.18 MB / 0.6075 GB
"
[Timeout remaining time 176]
Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo)
Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Running command: translateModel(Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|eff.PEle|eff.dp_in|eff.V_flow",fileNamePrefix="Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow")
translateModel(Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|eff.PEle|eff.dp_in|eff.V_flow",fileNamePrefix="Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 0.002194/0.002194, allocations: 63.91 kB / 1.107 GB, free: 4.641 MB / 0.8419 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.108/1.11, allocations: 168.7 MB / 1.272 GB, free: 7.941 MB / 0.9981 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow): time 0.003817/1.114, allocations: 2.423 MB / 1.274 GB, free: 6.258 MB / 0.9981 GB
Notification: Performance of NFInst.instExpressions: time 0.006288/1.12, allocations: 3.833 MB / 1.278 GB, free: 3.699 MB / 0.9981 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.000462/1.121, allocations: 9.562 kB / 1.278 GB, free: 3.695 MB / 0.9981 GB
Notification: Performance of NFTyping.typeComponents: time 0.00336/1.124, allocations: 1.048 MB / 1.279 GB, free: 3.352 MB / 0.9981 GB
Notification: Performance of NFTyping.typeBindings: time 0.001202/1.125, allocations: 439.5 kB / 1.28 GB, free: 3.137 MB / 0.9981 GB
Notification: Performance of NFTyping.typeClassSections: time 0.001572/1.127, allocations: 0.5202 MB / 1.28 GB, free: 2.895 MB / 0.9981 GB
Notification: Performance of NFFlatten.flatten: time 0.006006/1.133, allocations: 3.415 MB / 1.283 GB, free: 1.93 MB / 0.9981 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001429/1.133, allocations: 22.84 kB / 1.283 GB, free: 1.922 MB / 0.9981 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0004003/1.133, allocations: 237.9 kB / 1.284 GB, free: 1.832 MB / 0.9981 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0003494/1.134, allocations: 232.7 kB / 1.284 GB, free: 1.738 MB / 0.9981 GB
Notification: Performance of NFPackage.collectConstants: time 5.075e-05/1.134, allocations: 17.25 kB / 1.284 GB, free: 1.738 MB / 0.9981 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.001224/1.135, allocations: 0.5914 MB / 1.284 GB, free: 1.551 MB / 0.9981 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002496/1.135, allocations: 222.8 kB / 1.285 GB, free: 1.48 MB / 0.9981 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002/1.135, allocations: 258 kB / 1.285 GB, free: 1.32 MB / 0.9981 GB
Notification: Performance of NFConvertDAE.convert: time 0.001338/1.137, allocations: 0.9756 MB / 1.286 GB, free: 0.9648 MB / 0.9981 GB
Notification: Performance of FrontEnd - DAE generated: time 2.955e-06/1.137, allocations: 0 / 1.286 GB, free: 0.9648 MB / 0.9981 GB
Notification: Performance of FrontEnd: time 1.312e-06/1.137, allocations: 0 / 1.286 GB, free: 0.9648 MB / 0.9981 GB
Notification: Performance of Transformations before backend: time 8.295e-06/1.137, allocations: 0 / 1.286 GB, free: 0.9648 MB / 0.9981 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 20
 * Number of variables: 20
Notification: Performance of Generate backend data structure: time 0.001529/1.138, allocations: 0.9497 MB / 1.287 GB, free: 240 kB / 0.9981 GB
Notification: Performance of prepare preOptimizeDAE: time 3.942e-05/1.138, allocations: 8.438 kB / 1.287 GB, free: 240 kB / 0.9981 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008311/1.139, allocations: 159.6 kB / 1.287 GB, free: 196 kB / 0.9981 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001842/1.141, allocations: 1.162 MB / 1.288 GB, free: 15.59 MB / 1.014 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.398e-05/1.141, allocations: 8.156 kB / 1.288 GB, free: 15.58 MB / 1.014 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 4.046e-05/1.141, allocations: 15.84 kB / 1.288 GB, free: 15.57 MB / 1.014 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005927/1.142, allocations: 176.7 kB / 1.288 GB, free: 15.51 MB / 1.014 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.128e-05/1.142, allocations: 0 / 1.288 GB, free: 15.51 MB / 1.014 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.502e-05/1.142, allocations: 4.562 kB / 1.288 GB, free: 15.5 MB / 1.014 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.885e-06/1.142, allocations: 3.5 kB / 1.288 GB, free: 15.5 MB / 1.014 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006507/1.142, allocations: 167.5 kB / 1.288 GB, free: 15.47 MB / 1.014 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00167/1.144, allocations: 0.7304 MB / 1.289 GB, free: 15.01 MB / 1.014 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0008688/1.145, allocations: 185.2 kB / 1.289 GB, free: 14.95 MB / 1.014 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002683/1.145, allocations: 75.55 kB / 1.289 GB, free: 14.93 MB / 1.014 GB
Notification: Performance of preOpt evalFunc (simulation): time 3.1e-05/1.145, allocations: 3.984 kB / 1.289 GB, free: 14.93 MB / 1.014 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.915e-05/1.145, allocations: 35.08 kB / 1.289 GB, free: 14.88 MB / 1.014 GB
Notification: Performance of pre-optimization done (n=9): time 1.543e-06/1.145, allocations: 4 kB / 1.289 GB, free: 14.88 MB / 1.014 GB
Notification: Performance of matching and sorting (n=9): time 0.001045/1.146, allocations: 314 kB / 1.29 GB, free: 14.77 MB / 1.014 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.379e-05/1.146, allocations: 51.41 kB / 1.29 GB, free: 14.7 MB / 1.014 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00105/1.147, allocations: 0.7847 MB / 1.291 GB, free: 14.36 MB / 1.014 GB
Notification: Performance of collectPreVariables (initialization): time 3.362e-05/1.147, allocations: 26.58 kB / 1.291 GB, free: 14.33 MB / 1.014 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0002528/1.148, allocations: 257.7 kB / 1.291 GB, free: 14.12 MB / 1.014 GB
Notification: Performance of collectInitialBindings (initialization): time 4.122e-05/1.148, allocations: 40.22 kB / 1.291 GB, free: 14.09 MB / 1.014 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002378/1.148, allocations: 155.7 kB / 1.291 GB, free: 14.02 MB / 1.014 GB
Notification: Performance of setup shared object (initialization): time 0.0002164/1.148, allocations: 371.1 kB / 1.291 GB, free: 13.69 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005247/1.149, allocations: 295.4 kB / 1.292 GB, free: 13.59 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006419/1.149, allocations: 411.7 kB / 1.292 GB, free: 13.38 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001027/1.15, allocations: 0.6132 MB / 1.293 GB, free: 13.09 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.36e-06/1.15, allocations: 1.031 kB / 1.293 GB, free: 13.09 MB / 1.014 GB
Notification: Performance of matching and sorting (n=88) (initialization): time 0.00175/1.152, allocations: 0.803 MB / 1.293 GB, free: 12.79 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 2.044e-05/1.152, allocations: 6.625 kB / 1.293 GB, free: 12.79 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.325e-05/1.152, allocations: 3.781 kB / 1.293 GB, free: 12.79 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 2.728e-05/1.152, allocations: 9.234 kB / 1.293 GB, free: 12.78 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007554/1.153, allocations: 137.7 kB / 1.294 GB, free: 12.76 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006554/1.154, allocations: 0.6257 MB / 1.294 GB, free: 12.16 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005203/1.154, allocations: 80.98 kB / 1.294 GB, free: 12.12 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.537e-05/1.154, allocations: 24.19 kB / 1.294 GB, free: 12.11 MB / 1.014 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0008606/1.155, allocations: 477.2 kB / 1.295 GB, free: 11.9 MB / 1.014 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006738/1.156, allocations: 402.9 kB / 1.295 GB, free: 11.68 MB / 1.014 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00108/1.157, allocations: 0.6125 MB / 1.296 GB, free: 11.39 MB / 1.014 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.296e-06/1.157, allocations: 1.469 kB / 1.296 GB, free: 11.39 MB / 1.014 GB
Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.001584/1.158, allocations: 0.7714 MB / 1.296 GB, free: 11.11 MB / 1.014 GB
Notification: Performance of prepare postOptimizeDAE: time 1.515e-05/1.158, allocations: 6.312 kB / 1.296 GB, free: 11.11 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.596e-06/1.158, allocations: 7.5 kB / 1.296 GB, free: 11.1 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.176e-05/1.158, allocations: 6.141 kB / 1.296 GB, free: 11.1 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005687/1.159, allocations: 131.6 kB / 1.297 GB, free: 11.09 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.058e-05/1.159, allocations: 5.609 kB / 1.297 GB, free: 11.09 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005463/1.159, allocations: 66.06 kB / 1.297 GB, free: 11.06 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.235e-05/1.16, allocations: 31.52 kB / 1.297 GB, free: 11.05 MB / 1.014 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 13
 * 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 (55):
 * Single equations (assignments): 52
 * Array equations: 1
 * Algorithm blocks: 0
 * Record equations: 1
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 1
 * 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): 1 system
   {1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.0002486/1.16, allocations: 198 kB / 1.297 GB, free: 10.85 MB / 1.014 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 9.6e-05/1.16, allocations: 54.38 kB / 1.297 GB, free: 10.82 MB / 1.014 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008177/1.161, allocations: 242.2 kB / 1.297 GB, free: 10.72 MB / 1.014 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.92e-06/1.161, allocations: 0.8438 kB / 1.297 GB, free: 10.72 MB / 1.014 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 8.196e-06/1.161, allocations: 5.188 kB / 1.297 GB, free: 10.72 MB / 1.014 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.168e-06/1.161, allocations: 0.75 kB / 1.297 GB, free: 10.72 MB / 1.014 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006158/1.161, allocations: 405.7 kB / 1.298 GB, free: 10.43 MB / 1.014 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.194e-06/1.161, allocations: 0 / 1.298 GB, free: 10.43 MB / 1.014 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003125/1.162, allocations: 51.56 kB / 1.298 GB, free: 10.43 MB / 1.014 GB
Notification: Performance of postOpt tearingSystem (simulation): time 3.086e-06/1.162, allocations: 1.188 kB / 1.298 GB, free: 10.43 MB / 1.014 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.599e-05/1.162, allocations: 2.25 kB / 1.298 GB, free: 10.43 MB / 1.014 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.000427/1.162, allocations: 0.6047 MB / 1.298 GB, free: 9.832 MB / 1.014 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.352e-06/1.162, allocations: 0 / 1.298 GB, free: 9.832 MB / 1.014 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.000711/1.163, allocations: 339.8 kB / 1.299 GB, free: 9.629 MB / 1.014 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0002206/1.163, allocations: 162.8 kB / 1.299 GB, free: 9.484 MB / 1.014 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.708e-05/1.163, allocations: 5.844 kB / 1.299 GB, free: 9.48 MB / 1.014 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002733/1.163, allocations: 22.47 kB / 1.299 GB, free: 9.48 MB / 1.014 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.827e-05/1.163, allocations: 10.91 kB / 1.299 GB, free: 9.477 MB / 1.014 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.701e-05/1.163, allocations: 7.328 kB / 1.299 GB, free: 9.473 MB / 1.014 GB
Notification: Performance of sorting global known variables: time 0.0008528/1.164, allocations: 0.5239 MB / 1.299 GB, free: 9.258 MB / 1.014 GB
Notification: Performance of sort global known variables: time 8e-08/1.164, allocations: 3.938 kB / 1.299 GB, free: 9.254 MB / 1.014 GB
Notification: Performance of remove unused functions: time 0.00129/1.166, allocations: 298.5 kB / 1.3 GB, free: 9.215 MB / 1.014 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * 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 simulation (10):
 * Single equations (assignments): 9
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 1
 * 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): 1 system
   {1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0008239/1.166, allocations: 341.3 kB / 1.3 GB, free: 9.07 MB / 1.014 GB
Notification: Performance of simCode: created initialization part: time 0.002454/1.169, allocations: 0.7913 MB / 1.301 GB, free: 8.852 MB / 1.014 GB
Notification: Performance of simCode: created event and clocks part: time 3.497e-06/1.169, allocations: 1 kB / 1.301 GB, free: 8.852 MB / 1.014 GB
Notification: Performance of simCode: created simulation system equations: time 0.0003975/1.169, allocations: 102.2 kB / 1.301 GB, free: 8.828 MB / 1.014 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009782/1.17, allocations: 201.3 kB / 1.301 GB, free: 8.766 MB / 1.014 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003102/1.173, allocations: 1.114 MB / 1.302 GB, free: 8.273 MB / 1.014 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006818/1.174, allocations: 0.8972 MB / 1.303 GB, free: 7.539 MB / 1.014 GB
Notification: Performance of simCode: alias equations: time 0.0005819/1.175, allocations: 186.8 kB / 1.303 GB, free: 7.48 MB / 1.014 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001745/1.175, allocations: 56.05 kB / 1.303 GB, free: 7.461 MB / 1.014 GB
Notification: Performance of SimCode: time 1.393e-06/1.175, allocations: 1.125 kB / 1.303 GB, free: 7.461 MB / 1.014 GB
Notification: Performance of Templates: time 0.02837/1.203, allocations: 11.71 MB / 1.315 GB, free: 6.531 MB / 1.014 GB
"
[Timeout remaining time 299]
make -j1 -f Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.makefile [Timeout 300]
(rm -f Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe ; mkfifo Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe >> ../files/Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.sim & ./Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow  -abortSlowSimulation -alarm=400  -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Movers.BaseClasses.Validation.NegativePressureOrFlow.pipe 2>&1) [Timeout 400]
[Calling os._exit(0), Time elapsed: 9.82872558850795]