exp-w crasher

Average Error: 0.3 → 0.4

Time: 12.8s

Precision: binary64

• could not determine a ground truth for program body

  1. w = 6.743428482595189e+98
  2. l = -1.9051079791008207e+220

Math

\[\]

↓

\[\]

Error

Bits error versus w

Bits error versus l

Derivation

1. Initial program 0.3

   \[\]

2. Simplified 0.3

   \[\leadsto \]
3. Using strategy rm

4. Applied add-sqr-sqrt 0.3

   \[\leadsto \]

5. Applied pow-unpow 0.3

   \[\leadsto \]
6. Using strategy rm

7. Applied add-cube-cbrt 0.4

   \[\leadsto \]

8. Applied pow-unpow 0.4

   \[\leadsto \]

9. Final simplification 0.4

   \[\leadsto \]

Reproduce

herbie shell --seed 2020179 
(FPCore (w l)
  :name "exp-w crasher"
  :precision binary64
  (* (exp (neg w)) (pow l (exp w))))