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 r20611 = x;
        double r20612 = cosh(r20611);
        double r20613 = asin(r20612);
        double r20614 = r20611 + r20613;
        return r20614;
}