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 r1019842 = a;
        double r1019843 = b;
        double r1019844 = r1019842 + r1019843;
        double r1019845 = c;
        double r1019846 = r1019844 + r1019845;
        double r1019847 = 2.0;
        double r1019848 = r1019846 / r1019847;
        double r1019849 = r1019848 - r1019842;
        double r1019850 = r1019848 * r1019849;
        double r1019851 = r1019848 - r1019843;
        double r1019852 = r1019850 * r1019851;
        double r1019853 = r1019848 - r1019845;
        double r1019854 = r1019852 * r1019853;
        double r1019855 = sqrt(r1019854);
        return r1019855;
}