Use the --timeout flag to change the timeout.
\frac{x - \sin x}{x - \tan x}double f(double x) {
double r451085 = x;
double r451086 = sin(r451085);
double r451087 = r451085 - r451086;
double r451088 = tan(r451085);
double r451089 = r451085 - r451088;
double r451090 = r451087 / r451089;
return r451090;
}
herbie shell --seed 2019158
(FPCore (x)
:name "sintan (problem 3.4.5)"
(/ (- x (sin x)) (- x (tan x))))