Model:coupon v.1 (DTMC)
Parameter(s)N = 15, DRAWS = 4, B = 5
Property:exp_draws (exp-reward)
Invocation (specific)
mono modes/modes.exe coupon.15-4.jani --props exp_draws -E B=5 --width 1e-3 --relative-width -O out.txt Minimal --unsafe --max-run-length 0 --timeout 1680 
Settings specific for this benchmark: '--unsafe' = compile model without bounds and assignment checks, '--max-run-length 0' = do not impose a limit on the maximum length of a simulation run (which is anyway more of a model debugging feature), '--timeout 1680' = stop after 28 minutes of simulation and return the estimate at that point even if the desired confidence is not yet met.
Return code:0
Relative Error:7.143378249664519e-05
coupon.15-4.jani:model: info: coupon.15-4 is a DTMC model and will be simulated as an MDP using uniform resolution of nondeterminism.
coupon.15-4.jani: info: Using default value of 0.95 for the confidence parameter.

Peak memory usage: 59 MB
Analysis results for coupon.15-4.jani
Experiment B=5
Status:          Finished
Simulation time: 26.4 s

+ Property Property "exp_draws"
  Estimated value:     12.8192742800932
  Confidence interval: [12.8064550381648, 12.8320935220215]
  Runs used:           447280
  Run type:            MDP
  Status:              Finished

  + Sample data
    Mean:     12.8192742800932
    Variance: 19.1340975910584
    Skewness: 1.31080889418541
    Kurtosis: 6.07481727013545

  + Error bounds
    Statement: CI: 100(1 - α)% of intervals contain true value (CLT assumption)
    α:         0.05