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 r16313 = a;
        double r16314 = b;
        double r16315 = r16313 + r16314;
        double r16316 = c;
        double r16317 = r16315 + r16316;
        double r16318 = 2.0;
        double r16319 = r16317 / r16318;
        double r16320 = r16319 - r16313;
        double r16321 = r16319 * r16320;
        double r16322 = r16319 - r16314;
        double r16323 = r16321 * r16322;
        double r16324 = r16319 - r16316;
        double r16325 = r16323 * r16324;
        double r16326 = sqrt(r16325);
        return r16326;
}