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 r8006 = x;
        double r8007 = cosh(r8006);
        double r8008 = asin(r8007);
        double r8009 = r8006 + r8008;
        return r8009;
}