\[\left(d1 \cdot 3 + d1 \cdot d2\right) + d1 \cdot d3\]

\left(d1 \cdot 3 + d1 \cdot d2\right) + d1 \cdot d3

double f(double d1, double d2, double d3) {
        double r8176 = d1;
        double r8177 = 3.0;
        double r8178 = r8176 * r8177;
        double r8179 = d2;
        double r8180 = r8176 * r8179;
        double r8181 = r8178 + r8180;
        double r8182 = d3;
        double r8183 = r8176 * r8182;
        double r8184 = r8181 + r8183;
        return r8184;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(FPCore (d1 d2 d3)
  :name "FastMath test3"

  :herbie-target
  (* d1 (+ (+ 3.0 d2) d3))

  (+ (+ (* d1 3.0) (* d1 d2)) (* d1 d3)))

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