sintan (problem 3.4.5)

Specification

?
\[-0.4 \leq \varepsilon \land \varepsilon \leq 0.4\]
\[\begin{array}{l} \\ \frac{\varepsilon - \sin \varepsilon}{\varepsilon - \tan \varepsilon} \end{array} \]
(FPCore (eps) :precision binary64 (/ (- eps (sin eps)) (- eps (tan eps))))
double code(double eps) {
	return (eps - sin(eps)) / (eps - tan(eps));
}
real(8) function code(eps)
    real(8), intent (in) :: eps
    code = (eps - sin(eps)) / (eps - tan(eps))
end function
public static double code(double eps) {
	return (eps - Math.sin(eps)) / (eps - Math.tan(eps));
}
def code(eps):
	return (eps - math.sin(eps)) / (eps - math.tan(eps))
function code(eps)
	return Float64(Float64(eps - sin(eps)) / Float64(eps - tan(eps)))
end
function tmp = code(eps)
	tmp = (eps - sin(eps)) / (eps - tan(eps));
end
code[eps_] := N[(N[(eps - N[Sin[eps], $MachinePrecision]), $MachinePrecision] / N[(eps - N[Tan[eps], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\varepsilon - \sin \varepsilon}{\varepsilon - \tan \varepsilon}
\end{array}

Reproduce

?
herbie shell --seed 2024283 
(FPCore (eps)
  :name "sintan (problem 3.4.5)"
  :precision binary64
  :pre (and (<= -0.4 eps) (<= eps 0.4))

  :alt
  (! :herbie-platform default (- (* 9/40 eps eps) 1/2))

  (/ (- eps (sin eps)) (- eps (tan eps))))

Please file a bug report with this information.

Backtrace

eprintf: format string requires 0 arguments, given 1; arguments were: '(#s(si 0 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