Exception for Numeric.SpecFunctions:invErfc from math-functions-0.1.5.2, B

Math

\[0.7071100000000000163069557856942992657423 \cdot \left(\frac{2.307529999999999859028321225196123123169 + x \cdot 0.2706100000000000171951342053944244980812}{1 + x \cdot \left(0.992290000000000005364597654988756403327 + x \cdot 0.04481000000000000260680366181986755691469\right)} - x\right)\]

C

double f(double x) {
        double r8325 = 0.70711;
        double r8326 = 2.30753;
        double r8327 = x;
        double r8328 = 0.27061;
        double r8329 = r8327 * r8328;
        double r8330 = r8326 + r8329;
        double r8331 = 1.0;
        double r8332 = 0.99229;
        double r8333 = 0.04481;
        double r8334 = r8327 * r8333;
        double r8335 = r8332 + r8334;
        double r8336 = r8327 * r8335;
        double r8337 = r8331 + r8336;
        double r8338 = r8330 / r8337;
        double r8339 = r8338 - r8327;
        double r8340 = r8325 * r8339;
        return r8340;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(FPCore (x)
  :name "Numeric.SpecFunctions:invErfc from math-functions-0.1.5.2, B"
  (* 0.70711 (- (/ (+ 2.30753 (* x 0.27061)) (+ 1.0 (* x (+ 0.99229 (* x 0.04481))))) x)))

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