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 r1693285 = a;
        double r1693286 = b;
        double r1693287 = r1693285 + r1693286;
        double r1693288 = c;
        double r1693289 = r1693287 + r1693288;
        double r1693290 = 2.0;
        double r1693291 = r1693289 / r1693290;
        double r1693292 = r1693291 - r1693285;
        double r1693293 = r1693291 * r1693292;
        double r1693294 = r1693291 - r1693286;
        double r1693295 = r1693293 * r1693294;
        double r1693296 = r1693291 - r1693288;
        double r1693297 = r1693295 * r1693296;
        double r1693298 = sqrt(r1693297);
        return r1693298;
}