\[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c\]

\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c

double f(double x, double y, double z, double t, double a, double b, double c) {
        double r8742 = x;
        double r8743 = y;
        double r8744 = r8742 * r8743;
        double r8745 = z;
        double r8746 = t;
        double r8747 = r8745 * r8746;
        double r8748 = 16.0;
        double r8749 = r8747 / r8748;
        double r8750 = r8744 + r8749;
        double r8751 = a;
        double r8752 = b;
        double r8753 = r8751 * r8752;
        double r8754 = 4.0;
        double r8755 = r8753 / r8754;
        double r8756 = r8750 - r8755;
        double r8757 = c;
        double r8758 = r8756 + r8757;
        return r8758;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 +o rules:numerics
(FPCore (x y z t a b c)
  :name "Diagrams.Solve.Polynomial:quartForm  from diagrams-solve-0.1, C"
  (+ (- (+ (* x y) (/ (* z t) 16.0)) (/ (* a b) 4.0)) c))

Backtrace

get-representation: Unknown representation #f		L	C
loop	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	122	4
prepare-points	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	146	0
setup-prog!34	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	67	0
run-improve43	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	339	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28