bug500 (missed optimization)

Specification

?
\[-1000 < x \land x < 1000\]
\[\begin{array}{l} \\ \sin x - x \end{array} \]
(FPCore (x) :precision binary64 (- (sin x) x))
double code(double x) {
	return sin(x) - x;
}
real(8) function code(x)
    real(8), intent (in) :: x
    code = sin(x) - x
end function
public static double code(double x) {
	return Math.sin(x) - x;
}
def code(x):
	return math.sin(x) - x
function code(x)
	return Float64(sin(x) - x)
end
function tmp = code(x)
	tmp = sin(x) - x;
end
code[x_] := N[(N[Sin[x], $MachinePrecision] - x), $MachinePrecision]
\begin{array}{l}

\\
\sin x - x
\end{array}

Reproduce

?
herbie shell --seed 2024005 
(FPCore (x)
  :name "bug500 (missed optimization)"
  :precision binary64
  :pre (and (< -1000.0 x) (< x 1000.0))

  :herbie-target
  (if (< (fabs x) 0.07) (- (+ (- (/ (pow x 3.0) 6.0) (/ (pow x 5.0) 120.0)) (/ (pow x 7.0) 5040.0))) (- (sin x) x))

  (- (sin x) x))

Please file a bug report with this information.

Backtrace

repr->cost: arity mismatch; the expected number of arguments does not match the given number expected: 2 given: 1LC
loop.../private/map.rkt5419
f490.../match/compiler.rkt54840
loop.../private/map.rkt5419
f490.../match/compiler.rkt54840
make-alt-table/home/nightlies/herbie/platforms/src/core/alt-table.rkt400
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt48618
initialize-alt-table!/home/nightlies/herbie/platforms/src/mainloop.rkt3160
mutate!/home/nightlies/herbie/platforms/src/mainloop.rkt3520
run-improve!/home/nightlies/herbie/platforms/src/mainloop.rkt3380
get-alternatives/report/home/nightlies/herbie/platforms/src/sandbox.rkt1690
(unnamed)/home/nightlies/herbie/platforms/src/sandbox.rkt2626
(unnamed)/usr/share/racket/pkgs/profile-lib/main.rkt4010
profile-thunk/usr/share/racket/pkgs/profile-lib/main.rkt90
(unnamed)/usr/share/racket/collects/racket/engine.rkt4224