\[\left(x \cdot y + z \cdot t\right) + a \cdot b\]

\left(x \cdot y + z \cdot t\right) + a \cdot b

double f(double x, double y, double z, double t, double a, double b) {
        double r8140 = x;
        double r8141 = y;
        double r8142 = r8140 * r8141;
        double r8143 = z;
        double r8144 = t;
        double r8145 = r8143 * r8144;
        double r8146 = r8142 + r8145;
        double r8147 = a;
        double r8148 = b;
        double r8149 = r8147 * r8148;
        double r8150 = r8146 + r8149;
        return r8150;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(FPCore (x y z t a b)
  :name "Linear.V3:$cdot from linear-1.19.1.3, B"
  (+ (+ (* x y) (* z t)) (* a b)))

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