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 r13474 = a;
        double r13475 = b;
        double r13476 = r13474 + r13475;
        double r13477 = c;
        double r13478 = r13476 + r13477;
        double r13479 = 2.0;
        double r13480 = r13478 / r13479;
        double r13481 = r13480 - r13474;
        double r13482 = r13480 * r13481;
        double r13483 = r13480 - r13475;
        double r13484 = r13482 * r13483;
        double r13485 = r13480 - r13477;
        double r13486 = r13484 * r13485;
        double r13487 = sqrt(r13486);
        return r13487;
}