Average Error: 29.3 → 0
Time: 982.0ms
Precision: binary64
Cost: 64
\[\left(x + y\right) - x\]
↓
\[y\]
\left(x + y\right) - x
↓
y
(FPCore (x y) :precision binary64 (- (+ x y) x))
↓
(FPCore (x y) :precision binary64 y)
double code(double x, double y) {
	return (x + y) - x;
}
↓
double code(double x, double y) {
	return y;
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original29.3
Target0
Herbie0
\[y - 0\]

Alternatives

Alternative 1
Error61.5
Cost64
\[0\]
Alternative 2
Error61.7
Cost64
\[1\]

Error

Derivation

  1. Initial program 29.3

    \[\left(x + y\right) - x\]

  2. Simplified0

    \[\leadsto \color{blue}{y}\]

  3. Simplified0

    \[\leadsto \color{blue}{y}\]

  4. Final simplification0

    \[\leadsto y\]

Reproduce

herbie shell --seed 2021044 
(FPCore (x y)
  :name "Graphics.Rendering.Chart.Plot.Pie:renderPie from Chart-1.5.3"
  :precision binary64

  :herbie-target
  (- y 0.0)

  (- (+ x y) x))