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 r4227 = x;
        double r4228 = cosh(r4227);
        double r4229 = asin(r4228);
        double r4230 = r4227 + r4229;
        return r4230;
}