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

\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 r8595 = x;
        double r8596 = y;
        double r8597 = r8595 * r8596;
        double r8598 = z;
        double r8599 = t;
        double r8600 = r8598 * r8599;
        double r8601 = 16.0;
        double r8602 = r8600 / r8601;
        double r8603 = r8597 + r8602;
        double r8604 = a;
        double r8605 = b;
        double r8606 = r8604 * r8605;
        double r8607 = 4.0;
        double r8608 = r8606 / r8607;
        double r8609 = r8603 - r8608;
        double r8610 = c;
        double r8611 = r8609 + r8610;
        return r8611;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(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