Cannot sample enough valid points. (more)

\[x + \sin^{-1} \left(\cosh x\right)\]
x + \sin^{-1} \left(\cosh x\right)
double f(double x) {
        double r1839470 = x;
        double r1839471 = cosh(r1839470);
        double r1839472 = asin(r1839471);
        double r1839473 = r1839470 + r1839472;
        return r1839473;
}