2-ancestry mixing, zero discriminant

Specification

?
\[\begin{array}{l} \\ \sqrt[3]{\frac{g}{2 \cdot a}} \end{array} \]
(FPCore (g a) :precision binary64 (cbrt (/ g (* 2.0 a))))
double code(double g, double a) {
	return cbrt((g / (2.0 * a)));
}
public static double code(double g, double a) {
	return Math.cbrt((g / (2.0 * a)));
}
function code(g, a)
	return cbrt(Float64(g / Float64(2.0 * a)))
end
code[g_, a_] := N[Power[N[(g / N[(2.0 * a), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]
\begin{array}{l}

\\
\sqrt[3]{\frac{g}{2 \cdot a}}
\end{array}

Reproduce

?
herbie shell --seed 2024283 
(FPCore (g a)
  :name "2-ancestry mixing, zero discriminant"
  :precision binary64
  (cbrt (/ g (* 2.0 a))))

Please file a bug report with this information.

Backtrace

eprintf: format string requires 0 arguments, given 1; arguments were: '(#s(si 3 4))LC
err-lsts->split-indices/home/nightlies/herbie/zane-regimes-old/src/core/regimes.rkt2190
option-on-expr/home/nightlies/herbie/zane-regimes-old/src/core/regimes.rkt1200
infer-splitpoints/home/nightlies/herbie/zane-regimes-old/src/core/regimes.rkt560
loop/home/nightlies/herbie/zane-regimes-old/src/core/regimes.rkt412
make-regime!/home/nightlies/herbie/zane-regimes-old/src/core/mainloop.rkt3500
extract!/home/nightlies/herbie/zane-regimes-old/src/core/mainloop.rkt790
run-improve!/home/nightlies/herbie/zane-regimes-old/src/core/mainloop.rkt450
get-alternatives/report/home/nightlies/herbie/zane-regimes-old/src/api/sandbox.rkt1860
(unnamed)/home/nightlies/herbie/zane-regimes-old/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