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 r20315 = x;
        double r20316 = cosh(r20315);
        double r20317 = asin(r20316);
        double r20318 = r20315 + r20317;
        return r20318;
}