Timeout in 10.0m

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\[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}\]
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}
double f(double t, double l, double k) {
        double r6735699 = 2.0;
        double r6735700 = t;
        double r6735701 = 3.0;
        double r6735702 = pow(r6735700, r6735701);
        double r6735703 = l;
        double r6735704 = r6735703 * r6735703;
        double r6735705 = r6735702 / r6735704;
        double r6735706 = k;
        double r6735707 = sin(r6735706);
        double r6735708 = r6735705 * r6735707;
        double r6735709 = tan(r6735706);
        double r6735710 = r6735708 * r6735709;
        double r6735711 = 1.0;
        double r6735712 = r6735706 / r6735700;
        double r6735713 = pow(r6735712, r6735699);
        double r6735714 = r6735711 + r6735713;
        double r6735715 = r6735714 - r6735711;
        double r6735716 = r6735710 * r6735715;
        double r6735717 = r6735699 / r6735716;
        return r6735717;
}

Reproduce

herbie shell --seed 2019139 
(FPCore (t l k)
  :name "Toniolo and Linder, Equation (10-)"
  (/ 2 (* (* (* (/ (pow t 3) (* l l)) (sin k)) (tan k)) (- (+ 1 (pow (/ k t) 2)) 1))))