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 r8029 = x;
        double r8030 = cosh(r8029);
        double r8031 = asin(r8030);
        double r8032 = r8029 + r8031;
        return r8032;
}