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 r8026 = x;
        double r8027 = cosh(r8026);
        double r8028 = asin(r8027);
        double r8029 = r8026 + r8028;
        return r8029;
}