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 r1830602 = x;
        double r1830603 = cosh(r1830602);
        double r1830604 = asin(r1830603);
        double r1830605 = r1830602 + r1830604;
        return r1830605;
}