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 r992564 = a;
        double r992565 = b;
        double r992566 = r992564 + r992565;
        double r992567 = c;
        double r992568 = r992566 + r992567;
        double r992569 = 2.0;
        double r992570 = r992568 / r992569;
        double r992571 = r992570 - r992564;
        double r992572 = r992570 * r992571;
        double r992573 = r992570 - r992565;
        double r992574 = r992572 * r992573;
        double r992575 = r992570 - r992567;
        double r992576 = r992574 * r992575;
        double r992577 = sqrt(r992576);
        return r992577;
}