Exception for (- (/ x0 (- 1 x1)) x0)

\[x0 = 1.855 \land x1 = 0.000209 \lor x0 = 2.985 \land x1 = 0.0186\]

Math

\[\frac{x0}{1 - x1} - x0 \]

FPCore

(FPCore (x0 x1) :precision binary64 (- (/ x0 (- 1.0 x1)) x0))

C

double code(double x0, double x1) {
	return (x0 / (1.0 - x1)) - x0;
}

Fortran

real(8) function code(x0, x1)
    real(8), intent (in) :: x0
    real(8), intent (in) :: x1
    code = (x0 / (1.0d0 - x1)) - x0
end function

Java

public static double code(double x0, double x1) {
	return (x0 / (1.0 - x1)) - x0;
}

Python

def code(x0, x1):
	return (x0 / (1.0 - x1)) - x0

Julia

function code(x0, x1)
	return Float64(Float64(x0 / Float64(1.0 - x1)) - x0)
end

MATLAB

function tmp = code(x0, x1)
	tmp = (x0 / (1.0 - x1)) - x0;
end

Wolfram

code[x0_, x1_] := N[(N[(x0 / N[(1.0 - x1), $MachinePrecision]), $MachinePrecision] - x0), $MachinePrecision]

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2023243 
(FPCore (x0 x1)
  :name "(- (/ x0 (- 1 x1)) x0)"
  :precision binary64
  :pre (or (and (== x0 1.855) (== x1 0.000209)) (and (== x0 2.985) (== x1 0.0186)))

  :herbie-target
  (/ (* x0 x1) (- 1.0 x1))

  (- (/ x0 (- 1.0 x1)) x0))

Backtrace

arb-==: arity mismatch; the expected number of arguments does not match the given number expected: 0 given: 2		L	C
f	/home/nightlies/herbie/arb-support/src/programs.rkt	187	2
(unnamed)	/home/nightlies/herbie/arb-support/src/ground-truth.rkt	23	2
search-step	/home/nightlies/herbie/arb-support/src/searchreals.rkt	37	0
find-intervals	/home/nightlies/herbie/arb-support/src/searchreals.rkt	87	0
make-sampler	/home/nightlies/herbie/arb-support/src/sampling.rkt	94	0
sample-points	/home/nightlies/herbie/arb-support/src/ground-truth.rkt	64	0
setup-context!	/home/nightlies/herbie/arb-support/src/mainloop.rkt	293	0
get-alternatives/report	/home/nightlies/herbie/arb-support/src/sandbox.rkt	148	0
(unnamed)	/home/nightlies/herbie/arb-support/src/sandbox.rkt	247	6
(unnamed)	/usr/share/racket/pkgs/profile-lib/main.rkt	40	10
profile-thunk	/usr/share/racket/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/share/racket/collects/racket/engine.rkt	42	24