Cannot sample enough valid points. (more)

\[0.0 \lt a \land 0.0 \lt b \land 0.0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}
double f(double a, double b, double c) {
        double r13633 = a;
        double r13634 = b;
        double r13635 = r13633 + r13634;
        double r13636 = c;
        double r13637 = r13635 + r13636;
        double r13638 = 2.0;
        double r13639 = r13637 / r13638;
        double r13640 = r13639 - r13633;
        double r13641 = r13639 * r13640;
        double r13642 = r13639 - r13634;
        double r13643 = r13641 * r13642;
        double r13644 = r13639 - r13636;
        double r13645 = r13643 * r13644;
        double r13646 = sqrt(r13645);
        return r13646;
}