Exception for bug323 (missed optimization)

Specification

\[0 \leq x \land x \leq 0.5\]

\[\begin{array}{l} \\ \cos^{-1} \left(1 - x\right) \end{array} \]

(FPCore (x) :precision binary64 (acos (- 1.0 x)))

double code(double x) {
	return acos((1.0 - x));
}

real(8) function code(x)
    real(8), intent (in) :: x
    code = acos((1.0d0 - x))
end function

public static double code(double x) {
	return Math.acos((1.0 - x));
}

def code(x):
	return math.acos((1.0 - x))

function code(x)
	return acos(Float64(1.0 - x))
end

function tmp = code(x)
	tmp = acos((1.0 - x));
end

code[x_] := N[ArcCos[N[(1.0 - x), $MachinePrecision]], $MachinePrecision]

\begin{array}{l}

\\
\cos^{-1} \left(1 - x\right)
\end{array}

Reproduce

herbie shell --seed 2024146 
(FPCore (x)
  :name "bug323 (missed optimization)"
  :precision binary64
  :pre (and (<= 0.0 x) (<= x 0.5))

  :alt
  (! :herbie-platform default (* 2 (asin (sqrt (/ x 2)))))

  (acos (- 1.0 x)))

Please file a bug report with this information.

Backtrace

application: not a procedure; expected a procedure that can be applied to arguments given: #f		L	C
backward-pass	/home/nightlies/herbie/jackson-mergable-platform-changes/src/correct-round.rkt	146	0
compiled-spec	/home/nightlies/herbie/jackson-mergable-platform-changes/src/correct-round.rkt	27	2
compiled-spec	/home/nightlies/herbie/jackson-mergable-platform-changes/src/correct-round.rkt	143	2
compiled-spec	/home/nightlies/herbie/jackson-mergable-platform-changes/src/correct-round.rkt	27	2
compiled-spec	/home/nightlies/herbie/jackson-mergable-platform-changes/src/ground-truth.rkt	31	2
ival-eval	/home/nightlies/herbie/jackson-mergable-platform-changes/src/ground-truth.rkt	55	0
<eval-prog-real>	/home/nightlies/herbie/jackson-mergable-platform-changes/src/ground-truth.rkt	86	2
compute-local-errors	/home/nightlies/herbie/jackson-mergable-platform-changes/src/core/localize.rkt	75	0
batch-localize-errors	/home/nightlies/herbie/jackson-mergable-platform-changes/src/core/localize.rkt	61	0
localize!	/home/nightlies/herbie/jackson-mergable-platform-changes/src/mainloop.rkt	201	0
run-iter!	/home/nightlies/herbie/jackson-mergable-platform-changes/src/mainloop.rkt	73	0
mutate!	/home/nightlies/herbie/jackson-mergable-platform-changes/src/mainloop.rkt	65	0
run-improve!	/home/nightlies/herbie/jackson-mergable-platform-changes/src/mainloop.rkt	51	0
get-alternatives/report	/home/nightlies/herbie/jackson-mergable-platform-changes/src/sandbox.rkt	169	0
(unnamed)	/home/nightlies/herbie/jackson-mergable-platform-changes/src/sandbox.rkt	263	6
(unnamed)	/usr/local/racket/share/pkgs/profile-lib/main.rkt	40	10
profile-thunk	/usr/local/racket/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/local/racket/collects/racket/engine.rkt	42	24