Use the --timeout flag to change the timeout.
\lambda_1 + \tan^{-1}_* \frac{\left(\sin theta \cdot \sin delta\right) \cdot \cos \phi_1}{\cos delta - \sin \phi_1 \cdot \sin \left(\sin^{-1} \left(\sin \phi_1 \cdot \cos delta + \left(\cos \phi_1 \cdot \sin delta\right) \cdot \cos theta\right)\right)}double f(double lambda1, double phi1, double __attribute__((unused)) phi2, double delta, double theta) {
double r1347153 = lambda1;
double r1347154 = theta;
double r1347155 = sin(r1347154);
double r1347156 = delta;
double r1347157 = sin(r1347156);
double r1347158 = r1347155 * r1347157;
double r1347159 = phi1;
double r1347160 = cos(r1347159);
double r1347161 = r1347158 * r1347160;
double r1347162 = cos(r1347156);
double r1347163 = sin(r1347159);
double r1347164 = r1347163 * r1347162;
double r1347165 = r1347160 * r1347157;
double r1347166 = cos(r1347154);
double r1347167 = r1347165 * r1347166;
double r1347168 = r1347164 + r1347167;
double r1347169 = asin(r1347168);
double r1347170 = sin(r1347169);
double r1347171 = r1347163 * r1347170;
double r1347172 = r1347162 - r1347171;
double r1347173 = atan2(r1347161, r1347172);
double r1347174 = r1347153 + r1347173;
return r1347174;
}
herbie shell --seed 2019130
(FPCore (lambda1 phi1 phi2 delta theta)
:name "Destination given bearing on a great circle"
(+ lambda1 (atan2 (* (* (sin theta) (sin delta)) (cos phi1)) (- (cos delta) (* (sin phi1) (sin (asin (+ (* (sin phi1) (cos delta)) (* (* (cos phi1) (sin delta)) (cos theta))))))))))