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 r15100 = x;
        double r15101 = cosh(r15100);
        double r15102 = asin(r15101);
        double r15103 = r15100 + r15102;
        return r15103;
}