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 r9284 = a;
        double r9285 = b;
        double r9286 = r9284 + r9285;
        double r9287 = c;
        double r9288 = r9286 + r9287;
        double r9289 = 2.0;
        double r9290 = r9288 / r9289;
        double r9291 = r9290 - r9284;
        double r9292 = r9290 * r9291;
        double r9293 = r9290 - r9285;
        double r9294 = r9292 * r9293;
        double r9295 = r9290 - r9287;
        double r9296 = r9294 * r9295;
        double r9297 = sqrt(r9296);
        return r9297;
}