Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.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 0.00213/0.00213, allocations: 108.3 kB / 19.72 MB, free: 416 kB / 13.93 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 0.00218/0.00218, allocations: 224 kB / 23.03 MB, free: 2.949 MB / 13.93 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 1.841/1.841, allocations: 230.6 MB / 256.8 MB, free: 9.582 MB / 202.7 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo): time 3.421/3.421, allocations: 0.5045 GB / 0.8104 GB, free: 2.789 MB / 0.6511 GB
"
[Timeout remaining time 176]
Using package Buildings with version 13.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.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: translateModel(Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness")
translateModel(Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness") [Timeout 300]
"Notification: Performance of FrontEnd - loaded program: time 0.003783/0.003783, allocations: 75.83 kB / 1.177 GB, free: 11.48 MB / 0.9636 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.042/1.046, allocations: 180 MB / 1.353 GB, free: 1.57 MB / 1.026 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness): time 0.2837/1.33, allocations: 194.1 MB / 1.542 GB, free: 14.74 MB / 1.229 GB
Notification: Performance of NFInst.instExpressions: time 0.01868/1.349, allocations: 8.7 MB / 1.551 GB, free: 6.023 MB / 1.229 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002603/1.351, allocations: 75.31 kB / 1.551 GB, free: 5.949 MB / 1.229 GB
Notification: Performance of NFTyping.typeComponents: time 0.003045/1.354, allocations: 0.7918 MB / 1.552 GB, free: 5.152 MB / 1.229 GB
Notification: Performance of NFTyping.typeBindings: time 0.008072/1.362, allocations: 2.356 MB / 1.554 GB, free: 2.785 MB / 1.229 GB
Notification: Performance of NFTyping.typeClassSections: time 0.006391/1.369, allocations: 1.992 MB / 1.556 GB, free: 0.8008 MB / 1.229 GB
Notification: Performance of NFFlatten.flatten: time 0.006871/1.376, allocations: 3.3 MB / 1.559 GB, free: 13.48 MB / 1.245 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001979/1.378, allocations: 0.9177 MB / 1.56 GB, free: 12.53 MB / 1.245 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.007398/1.385, allocations: 2.233 MB / 1.562 GB, free: 10.29 MB / 1.245 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.002573/1.388, allocations: 0.9939 MB / 1.563 GB, free: 9.297 MB / 1.245 GB
Notification: Performance of NFPackage.collectConstants: time 0.0002876/1.388, allocations: 128 kB / 1.563 GB, free: 9.172 MB / 1.245 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005681/1.393, allocations: 2.022 MB / 1.565 GB, free: 7.145 MB / 1.245 GB
Notification: Performance of NFScalarize.scalarize: time 0.0008454/1.394, allocations: 402.5 kB / 1.566 GB, free: 6.75 MB / 1.245 GB
Notification: Performance of NFVerifyModel.verify: time 0.0013/1.396, allocations: 0.6299 MB / 1.566 GB, free: 6.117 MB / 1.245 GB
Notification: Performance of NFConvertDAE.convert: time 0.005934/1.402, allocations: 2.721 MB / 1.569 GB, free: 3.387 MB / 1.245 GB
Notification: Performance of FrontEnd - DAE generated: time 6.012e-06/1.402, allocations: 0 / 1.569 GB, free: 3.387 MB / 1.245 GB
Notification: Performance of FrontEnd: time 2.244e-06/1.402, allocations: 0 / 1.569 GB, free: 3.387 MB / 1.245 GB
Notification: Performance of Transformations before backend: time 1.919e-05/1.402, allocations: 3.938 kB / 1.569 GB, free: 3.383 MB / 1.245 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 229
 * Number of variables: 229
Notification: Performance of Generate backend data structure: time 0.004861/1.406, allocations: 1.95 MB / 1.571 GB, free: 1.387 MB / 1.245 GB
Notification: Performance of prepare preOptimizeDAE: time 6.172e-05/1.407, allocations: 12.92 kB / 1.571 GB, free: 1.375 MB / 1.245 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003195/1.41, allocations: 0.5532 MB / 1.572 GB, free: 0.8203 MB / 1.245 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.002603/1.412, allocations: 1.057 MB / 1.573 GB, free: 15.71 MB / 1.26 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.331e-05/1.412, allocations: 66 kB / 1.573 GB, free: 15.65 MB / 1.26 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001747/1.413, allocations: 99.92 kB / 1.573 GB, free: 15.55 MB / 1.26 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.003191/1.416, allocations: 1.427 MB / 1.574 GB, free: 14.05 MB / 1.26 GB
Notification: Performance of preOpt findStateOrder (simulation): time 2.613e-05/1.416, allocations: 4 kB / 1.574 GB, free: 14.05 MB / 1.26 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001179/1.416, allocations: 39.98 kB / 1.574 GB, free: 14.01 MB / 1.26 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.906e-05/1.416, allocations: 45.98 kB / 1.574 GB, free: 13.96 MB / 1.26 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003467/1.419, allocations: 1.319 MB / 1.576 GB, free: 12.64 MB / 1.26 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 0.008373/1.428, allocations: 3.944 MB / 1.579 GB, free: 8.605 MB / 1.26 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.003/1.431, allocations: 0.9363 MB / 1.58 GB, free: 7.664 MB / 1.26 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.001355/1.432, allocations: 0.5063 MB / 1.581 GB, free: 7.152 MB / 1.26 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000971/1.433, allocations: 184.5 kB / 1.581 GB, free: 6.973 MB / 1.26 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001832/1.435, allocations: 0.7729 MB / 1.582 GB, free: 6.152 MB / 1.26 GB
Notification: Performance of pre-optimization done (n=69): time 2.916e-06/1.435, allocations: 4 kB / 1.582 GB, free: 6.148 MB / 1.26 GB
Notification: Performance of matching and sorting (n=69): time 0.004827/1.44, allocations: 1.539 MB / 1.583 GB, free: 4.602 MB / 1.26 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.95e-05/1.44, allocations: 85.77 kB / 1.583 GB, free: 4.5 MB / 1.26 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001386/1.441, allocations: 0.871 MB / 1.584 GB, free: 3.609 MB / 1.26 GB
Notification: Performance of collectPreVariables (initialization): time 9.807e-05/1.441, allocations: 41.7 kB / 1.584 GB, free: 3.562 MB / 1.26 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006195/1.442, allocations: 0.5553 MB / 1.585 GB, free: 3 MB / 1.26 GB
Notification: Performance of collectInitialBindings (initialization): time 0.000302/1.442, allocations: 257.8 kB / 1.585 GB, free: 2.746 MB / 1.26 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003257/1.443, allocations: 158.5 kB / 1.585 GB, free: 2.586 MB / 1.26 GB
Notification: Performance of setup shared object (initialization): time 0.0002044/1.443, allocations: 330 kB / 1.585 GB, free: 2.258 MB / 1.26 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001363/1.444, allocations: 490.2 kB / 1.586 GB, free: 1.77 MB / 1.26 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001946/1.446, allocations: 0.9005 MB / 1.587 GB, free: 0.7422 MB / 1.26 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.002784/1.449, allocations: 1.034 MB / 1.588 GB, free: 15.65 MB / 1.276 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.65e-06/1.449, allocations: 0 / 1.588 GB, free: 15.65 MB / 1.276 GB
Notification: Performance of matching and sorting (n=87) (initialization): time 0.003422/1.452, allocations: 1.245 MB / 1.589 GB, free: 14.38 MB / 1.276 GB
Notification: Performance of prepare postOptimizeDAE: time 6.022e-05/1.452, allocations: 37.69 kB / 1.589 GB, free: 14.34 MB / 1.276 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.285e-05/1.452, allocations: 4 kB / 1.589 GB, free: 14.34 MB / 1.276 GB
Notification: Performance of postOpt tearingSystem (initialization): time 3.005e-05/1.452, allocations: 4 kB / 1.589 GB, free: 14.33 MB / 1.276 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00152/1.454, allocations: 264.1 kB / 1.589 GB, free: 14.07 MB / 1.276 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001067/1.455, allocations: 1.203 MB / 1.59 GB, free: 12.82 MB / 1.276 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001266/1.456, allocations: 135.7 kB / 1.591 GB, free: 12.69 MB / 1.276 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001136/1.456, allocations: 35.97 kB / 1.591 GB, free: 12.66 MB / 1.276 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001858/1.458, allocations: 0.6987 MB / 1.591 GB, free: 11.95 MB / 1.276 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001765/1.46, allocations: 0.8927 MB / 1.592 GB, free: 10.93 MB / 1.276 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002817/1.463, allocations: 1.03 MB / 1.593 GB, free: 9.848 MB / 1.276 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.888e-06/1.463, allocations: 4 kB / 1.593 GB, free: 9.844 MB / 1.276 GB
Notification: Performance of matching and sorting (n=87) (initialization_lambda0): time 0.003695/1.467, allocations: 1.23 MB / 1.594 GB, free: 8.594 MB / 1.276 GB
Notification: Performance of prepare postOptimizeDAE: time 4.489e-05/1.467, allocations: 37.8 kB / 1.594 GB, free: 8.551 MB / 1.276 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.614e-06/1.467, allocations: 4 kB / 1.594 GB, free: 8.547 MB / 1.276 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.759e-05/1.467, allocations: 11.98 kB / 1.594 GB, free: 8.535 MB / 1.276 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001158/1.468, allocations: 227.7 kB / 1.595 GB, free: 8.312 MB / 1.276 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.056e-05/1.468, allocations: 7.938 kB / 1.595 GB, free: 8.305 MB / 1.276 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001279/1.469, allocations: 147.4 kB / 1.595 GB, free: 8.16 MB / 1.276 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001003/1.469, allocations: 35.98 kB / 1.595 GB, free: 8.125 MB / 1.276 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 15
 * Number of states: 0 ()
 * Number of discrete variables: 5 (trapezoid.count,$PRE.trapezoid.count,trapezoid.T_start,$PRE.trapezoid.T_start,$whenCondition1)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (86):
 * Single equations (assignments): 83
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 2
 * 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): 2 systems
   {1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of prepare postOptimizeDAE: time 0.0004282/1.47, allocations: 224.1 kB / 1.595 GB, free: 7.898 MB / 1.276 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003979/1.47, allocations: 123.2 kB / 1.595 GB, free: 7.777 MB / 1.276 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00395/1.474, allocations: 1.362 MB / 1.597 GB, free: 6.402 MB / 1.276 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.09e-05/1.474, allocations: 11.94 kB / 1.597 GB, free: 6.391 MB / 1.276 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 6.332e-06/1.474, allocations: 0 / 1.597 GB, free: 6.391 MB / 1.276 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.097e-05/1.474, allocations: 3.984 kB / 1.597 GB, free: 6.387 MB / 1.276 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006278/1.48, allocations: 2.461 MB / 1.599 GB, free: 3.852 MB / 1.276 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.05e-05/1.48, allocations: 4 kB / 1.599 GB, free: 3.848 MB / 1.276 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00118/1.481, allocations: 212.1 kB / 1.599 GB, free: 3.641 MB / 1.276 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.731e-05/1.481, allocations: 8 kB / 1.599 GB, free: 3.633 MB / 1.276 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.484e-05/1.482, allocations: 31.97 kB / 1.599 GB, free: 3.602 MB / 1.276 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008942/1.482, allocations: 1.192 MB / 1.6 GB, free: 2.363 MB / 1.276 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.54e-06/1.482, allocations: 7.938 kB / 1.6 GB, free: 2.355 MB / 1.276 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003742/1.486, allocations: 1.41 MB / 1.602 GB, free: 0.8906 MB / 1.276 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0008127/1.487, allocations: 238.9 kB / 1.602 GB, free: 0.6562 MB / 1.276 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002796/1.487, allocations: 23.98 kB / 1.602 GB, free: 0.6328 MB / 1.276 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001262/1.489, allocations: 103.9 kB / 1.602 GB, free: 0.5312 MB / 1.276 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002154/1.489, allocations: 72.42 kB / 1.602 GB, free: 468 kB / 1.276 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001122/1.489, allocations: 39.97 kB / 1.602 GB, free: 428 kB / 1.276 GB
Notification: Performance of sorting global known variables: time 0.00118/1.49, allocations: 0.5921 MB / 1.603 GB, free: 15.82 MB / 1.292 GB
Notification: Performance of sort global known variables: time 1.4e-07/1.49, allocations: 0 / 1.603 GB, free: 15.82 MB / 1.292 GB
Notification: Performance of remove unused functions: time 0.00225/1.492, allocations: 0.6508 MB / 1.603 GB, free: 15.16 MB / 1.292 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 14
 * Number of states: 0 ()
 * Number of discrete variables: 3 ($whenCondition1,trapezoid.T_start,trapezoid.count)
 * Number of discrete states: 1 (trapezoid.count)
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (79):
 * Single equations (assignments): 69
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 6
 * When equations: 2
 * If-equations: 0
 * Equation systems (not torn): 2
 * 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): 2 systems
   {1, 1}
 * Without analytic Jacobian (size): 0 systems
Notification: Performance of Backend phase and start with SimCode phase: time 0.0008946/1.493, allocations: 344.5 kB / 1.604 GB, free: 14.82 MB / 1.292 GB
Notification: Performance of simCode: created initialization part: time 0.005589/1.499, allocations: 1.821 MB / 1.606 GB, free: 12.97 MB / 1.292 GB
Notification: Performance of simCode: created event and clocks part: time 8.115e-06/1.499, allocations: 0 / 1.606 GB, free: 12.97 MB / 1.292 GB
Notification: Performance of simCode: created simulation system equations: time 0.001878/1.501, allocations: 0.6134 MB / 1.606 GB, free: 12.36 MB / 1.292 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002377/1.503, allocations: 448.8 kB / 1.607 GB, free: 11.92 MB / 1.292 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006307/1.509, allocations: 2.274 MB / 1.609 GB, free: 9.578 MB / 1.292 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009353/1.51, allocations: 0.546 MB / 1.609 GB, free: 8.992 MB / 1.292 GB
Notification: Performance of simCode: alias equations: time 0.0016/1.512, allocations: 338 kB / 1.61 GB, free: 8.66 MB / 1.292 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003849/1.512, allocations: 99.39 kB / 1.61 GB, free: 8.562 MB / 1.292 GB
Notification: Performance of SimCode: time 9.62e-07/1.512, allocations: 0 / 1.61 GB, free: 8.562 MB / 1.292 GB
Notification: Performance of Templates: time 0.04983/1.562, allocations: 24.42 MB / 1.634 GB, free: 0.6367 MB / 1.307 GB
"
[Timeout remaining time 298]
make -j1 -f Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.makefile [Timeout 300]
(rm -f Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe ; mkfifo Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe >> ../files/Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.sim & ./Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness -abortSlowSimulation -alarm=240  -lv LOG_STATS > Buildings_13_Buildings.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe 2>&1) [Timeout 240]
[Calling sys.exit(0), Time elapsed: 12.138151918537915]