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 r15993 = x;
        double r15994 = cosh(r15993);
        double r15995 = asin(r15994);
        double r15996 = r15993 + r15995;
        return r15996;
}