\[\frac{e^{x \cdot \log \left(\frac{x}{x + y}\right)}}{x}\]

\frac{e^{x \cdot \log \left(\frac{x}{x + y}\right)}}{x}

double code(double x, double y) {
	return ((double) (((double) exp(((double) (x * ((double) log(((double) (x / ((double) (x + y)))))))))) / x));
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020128 
(FPCore (x y)
  :name "Numeric.SpecFunctions:invIncompleteBetaWorker from math-functions-0.1.5.2, F"
  :precision binary64

  :herbie-target
  (if (< y -3.7311844206647956e+94) (/ (exp (/ -1.0 y)) x) (if (< y 2.817959242728288e+37) (/ (pow (/ x (+ y x)) x) x) (if (< y 2.347387415166998e+178) (log (exp (/ (pow (/ x (+ y x)) x) x))) (/ (exp (/ -1.0 y)) x))))

  (/ (exp (* x (log (/ x (+ x y))))) x))

Backtrace

random-bits: contract violation expected: Positive-Integer given: 0		L	C
random-ranges	/data/pavpan/nightlies/herbie/separate-biginterval/src/common.rkt	139	0
sample-multi-bounded	/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt	14	0
(unnamed)	/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt	127	6
prepare-points-intervals	/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt	134	0
pred	/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt	200	4
for-loop	/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt	230	9
sindices->spoints	/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt	190	0
f37	unknown
get-final-combination	/data/pavpan/nightlies/herbie/separate-biginterval/src/mainloop.rkt	390	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 2020128 
(FPCore (x y)
  :name "Numeric.SpecFunctions:invIncompleteBetaWorker from math-functions-0.1.5.2, F"
  :precision binary64

  :herbie-target
  (if (< y -3.7311844206647956e+94) (/ (exp (/ -1.0 y)) x) (if (< y 2.817959242728288e+37) (/ (pow (/ x (+ y x)) x) x) (if (< y 2.347387415166998e+178) (log (exp (/ (pow (/ x (+ y x)) x) x))) (/ (exp (/ -1.0 y)) x))))

  (/ (exp (* x (log (/ x (+ x y))))) x))