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 r8016 = x;
        double r8017 = cosh(r8016);
        double r8018 = asin(r8017);
        double r8019 = r8016 + r8018;
        return r8019;
}