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 r8018 = a;
        double r8019 = b;
        double r8020 = r8018 + r8019;
        double r8021 = c;
        double r8022 = r8020 + r8021;
        double r8023 = 2.0;
        double r8024 = r8022 / r8023;
        double r8025 = r8024 - r8018;
        double r8026 = r8024 * r8025;
        double r8027 = r8024 - r8019;
        double r8028 = r8026 * r8027;
        double r8029 = r8024 - r8021;
        double r8030 = r8028 * r8029;
        double r8031 = sqrt(r8030);
        return r8031;
}