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 r5221 = x;
        double r5222 = cosh(r5221);
        double r5223 = asin(r5222);
        double r5224 = r5221 + r5223;
        return r5224;
}