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 r15568 = a;
        double r15569 = b;
        double r15570 = r15568 + r15569;
        double r15571 = c;
        double r15572 = r15570 + r15571;
        double r15573 = 2.0;
        double r15574 = r15572 / r15573;
        double r15575 = r15574 - r15568;
        double r15576 = r15574 * r15575;
        double r15577 = r15574 - r15569;
        double r15578 = r15576 * r15577;
        double r15579 = r15574 - r15571;
        double r15580 = r15578 * r15579;
        double r15581 = sqrt(r15580);
        return r15581;
}