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 r12556 = x;
        double r12557 = cosh(r12556);
        double r12558 = asin(r12557);
        double r12559 = r12556 + r12558;
        return r12559;
}