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 r7988 = x;
        double r7989 = cosh(r7988);
        double r7990 = asin(r7989);
        double r7991 = r7988 + r7990;
        return r7991;
}