\[\frac{\left(x \cdot 2\right) \cdot y}{x - y}\]

\frac{\left(x \cdot 2\right) \cdot y}{x - y}

double code(double x, double y) {
	return ((double) (((double) (((double) (x * 2.0)) * y)) / ((double) (x - y))));
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020169 
(FPCore (x y)
  :name "Linear.Projection:perspective from linear-1.19.1.3, B"
  :precision binary64

  :herbie-target
  (if (< x -1.7210442634149447e+81) (* (/ (* 2.0 x) (- x y)) y) (if (< x 8.364504563556443e+16) (/ (* x 2.0) (/ (- x y) y)) (* (/ (* 2.0 x) (- x y)) y)))

  (/ (* (* x 2.0) y) (- x y)))

Backtrace

match-define: no matching clause for '(== branch1268 -4.9431131645359486e+84)		L	C
match:error	/opt/racket-7.5/collects/racket/match/runtime.rkt	24	0
program-body	/data/pavpan/nightlies/herbie/ival-find-range/src/programs.rkt	25	0
(unnamed)	/opt/racket-7.5/collects/racket/contract/private/arrow-higher-order.rkt	379	33
prepare-points	/data/pavpan/nightlies/herbie/ival-find-range/src/points.rkt	130	0
pred	/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt	204	4
.../more-scheme.rkt:261:28	unknown
for-loop	/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt	240	3
sindices->spoints	/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt	194	0
f37	unknown
get-final-combination	/data/pavpan/nightlies/herbie/ival-find-range/src/mainloop.rkt	389	0
.../more-scheme.rkt:261:28	unknown
run	/opt/racket-7.5/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.5/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.5/collects/racket/private/more-scheme.rkt	261	28

Reproduce

herbie shell --seed 2020169 
(FPCore (x y)
  :name "Linear.Projection:perspective from linear-1.19.1.3, B"
  :precision binary64

  :herbie-target
  (if (< x -1.7210442634149447e+81) (* (/ (* 2.0 x) (- x y)) y) (if (< x 8.364504563556443e+16) (/ (* x 2.0) (/ (- x y) y)) (* (/ (* 2.0 x) (- x y)) y)))

  (/ (* (* x 2.0) y) (- x y)))