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 r16696 = a;
        double r16697 = b;
        double r16698 = r16696 + r16697;
        double r16699 = c;
        double r16700 = r16698 + r16699;
        double r16701 = 2.0;
        double r16702 = r16700 / r16701;
        double r16703 = r16702 - r16696;
        double r16704 = r16702 * r16703;
        double r16705 = r16702 - r16697;
        double r16706 = r16704 * r16705;
        double r16707 = r16702 - r16699;
        double r16708 = r16706 * r16707;
        double r16709 = sqrt(r16708);
        return r16709;
}