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 r5878 = x;
        double r5879 = cosh(r5878);
        double r5880 = asin(r5879);
        double r5881 = r5878 + r5880;
        return r5881;
}