Rust f32::atanh

Specification

?
\[\begin{array}{l} \\ \tanh^{-1} x \end{array} \]
(FPCore (x) :precision binary32 (atanh x))
float code(float x) {
	return atanhf(x);
}
function code(x)
	return atanh(x)
end
function tmp = code(x)
	tmp = atanh(x);
end
\begin{array}{l}

\\
\tanh^{-1} x
\end{array}

Reproduce

?
herbie shell --seed 2024266 
(FPCore (x)
  :name "Rust f32::atanh"
  :precision binary32
  (* 0.5 (log1p (/ (* 2.0 x) (- 1.0 x)))))

Please file a bug report with this information.

Backtrace

error: contract violation expected: string? given: 'log1p.f32LC
f406.../match/compiler.rkt55940
loop.../private/map.rkt4019
loop.../private/map.rkt4019
loop.../private/map.rkt4019
loop.../private/map.rkt4019
loop.../private/map.rkt4019
loop.../private/map.rkt4019
loop.../private/map.rkt4019
compile-expr/home/nightlies/herbie/bhargav-log-space/src/core/explain.rkt730
explain/home/nightlies/herbie/bhargav-log-space/src/core/explain.rkt6340
explain!/home/nightlies/herbie/bhargav-log-space/src/core/mainloop.rkt3220
run-improve!/home/nightlies/herbie/bhargav-log-space/src/core/mainloop.rkt440
get-alternatives/report/home/nightlies/herbie/bhargav-log-space/src/api/sandbox.rkt1860
(unnamed)/home/nightlies/herbie/bhargav-log-space/src/api/sandbox.rkt2826
(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