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 r866274 = x;
        double r866275 = cosh(r866274);
        double r866276 = asin(r866275);
        double r866277 = r866274 + r866276;
        return r866277;
}