Average Error: 49.2 → 49.2
Time: 2.2s
Precision: 64
Internal precision: 128
\[1.7 \cdot 10^{+308} \cdot t - 1.7 \cdot 10^{+308}\]
⬇
\[1.7 \cdot 10^{+308} \cdot t - 1.7 \cdot 10^{+308}\]

Error

Bits error versus t

Target

Original49.2
Comparison0
Herbie49.2
\[ (\left( 1.7 \cdot 10^{+308} \right) * t + \left(-1.7 \cdot 10^{+308}\right))_* \]

Derivation

  1. Initial program 49.2

    \[1.7 \cdot 10^{+308} \cdot t - 1.7 \cdot 10^{+308}\]
  2. Removed slow pow expressions

Runtime

Time bar (total: 2.2s) Debug log

Please include this information when filing a bug report:

herbie --seed '#(3594326298 1945598601 1319217760 3062406997 3190259390 2682158064)'
(FPCore (t)
  :name "fma_test2"
  :pre (<= 1.9 t 2.1)

  :target
  (fma 1.7e+308 t (- 1.7e+308))

  (- (* 1.7e+308 t) 1.7e+308))