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

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

double f(double x, double y, double z, double t, double a, double b, double c, double i) {
        double r8130 = x;
        double r8131 = y;
        double r8132 = r8130 * r8131;
        double r8133 = z;
        double r8134 = t;
        double r8135 = r8133 * r8134;
        double r8136 = r8132 + r8135;
        double r8137 = a;
        double r8138 = b;
        double r8139 = r8137 * r8138;
        double r8140 = r8136 + r8139;
        double r8141 = c;
        double r8142 = i;
        double r8143 = r8141 * r8142;
        double r8144 = r8140 + r8143;
        return r8144;
}

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 i)
  :name "Linear.V4:$cdot from linear-1.19.1.3, C"
  (+ (+ (+ (* x y) (* z t)) (* a b)) (* c i)))

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