Error

Target

Derivation

1. Initial program 45.1

   \[(x \cdot y + z)_* - \left(1 + \left(x \cdot y + z\right)\right)\]

2. Simplified0

   \[\leadsto \color{blue}{-1}\]

3. Final simplification0

   \[\leadsto -1\]

Reproduce

herbie shell --seed 2019022 +o rules:numerics
(FPCore (x y z)
  :name "simple fma test"

  :herbie-target
  -1

  (- (fma x y z) (+ 1 (+ (* x y) z))))

Details

Time bar (total: 3.9s)Debug log