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 r1950968 = lambda1;
double r1950969 = theta;
double r1950970 = sin(r1950969);
double r1950971 = delta;
double r1950972 = sin(r1950971);
double r1950973 = r1950970 * r1950972;
double r1950974 = phi1;
double r1950975 = cos(r1950974);
double r1950976 = r1950973 * r1950975;
double r1950977 = cos(r1950971);
double r1950978 = sin(r1950974);
double r1950979 = r1950978 * r1950977;
double r1950980 = r1950975 * r1950972;
double r1950981 = cos(r1950969);
double r1950982 = r1950980 * r1950981;
double r1950983 = r1950979 + r1950982;
double r1950984 = asin(r1950983);
double r1950985 = sin(r1950984);
double r1950986 = r1950978 * r1950985;
double r1950987 = r1950977 - r1950986;
double r1950988 = atan2(r1950976, r1950987);
double r1950989 = r1950968 + r1950988;
return r1950989;
}
herbie shell --seed 2019139
(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))))))))))