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 r189 = a;
        double r190 = b;
        double r191 = r189 + r190;
        double r192 = c;
        double r193 = r191 + r192;
        double r194 = 2.0;
        double r195 = r193 / r194;
        double r196 = r195 - r189;
        double r197 = r195 * r196;
        double r198 = r195 - r190;
        double r199 = r197 * r198;
        double r200 = r195 - r192;
        double r201 = r199 * r200;
        double r202 = sqrt(r201);
        return r202;
}