Cannot sample enough valid points. (more)

\[0 \lt a \land 0 \lt b \land 0 \lt c\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\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 r8042 = a;
        double r8043 = b;
        double r8044 = r8042 + r8043;
        double r8045 = c;
        double r8046 = r8044 + r8045;
        double r8047 = 2.0;
        double r8048 = r8046 / r8047;
        double r8049 = r8048 - r8042;
        double r8050 = r8048 * r8049;
        double r8051 = r8048 - r8043;
        double r8052 = r8050 * r8051;
        double r8053 = r8048 - r8045;
        double r8054 = r8052 * r8053;
        double r8055 = sqrt(r8054);
        return r8055;
}