Error in 9.5s

Runtime

Time bar (total: 9.5s)Debug log

start110.0ms

Algorithm
intervals

setup304.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 6.6b

localize13.0ms

Local error

Found 2 expressions with local error:

6.7b
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))
0.4b
(* (/ b a) (/ b a))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
2 → 41
Calls

2 calls. Slowest were:

3.0ms
(* (/ b a) (/ b a))
1.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

series42.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

22.0ms
(* (/ b a) (/ b a))
20.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

simplify1.3s

Counts
25 → 47
Calls

25 calls. Slowest were:

928.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
52.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))
47.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))

prune548.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 6.6b

localize19.0ms

Local error

Found 4 expressions with local error:

6.9b
(cbrt (fabs (- 1 (* (/ b a) (/ b a)))))
6.9b
(cbrt (fabs (- 1 (* (/ b a) (/ b a)))))
0.4b
(* (/ b a) (/ b a))
0.4b
(* (/ b a) (/ b a))

rewrite17.0ms

Algorithm
rewrite-expression-head
Counts
4 → 80
Calls

4 calls. Slowest were:

7.0ms
(* (/ b a) (/ b a))
6.0ms
(* (/ b a) (/ b a))
1.0ms
(cbrt (fabs (- 1 (* (/ b a) (/ b a)))))

series207.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

91.0ms
(cbrt (fabs (- 1 (* (/ b a) (/ b a)))))
87.0ms
(cbrt (fabs (- 1 (* (/ b a) (/ b a)))))
15.0ms
(* (/ b a) (/ b a))

simplify2.5s

Counts
48 → 92
Calls

48 calls. Slowest were:

996.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
914.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
60.0ms
(cbrt (sqrt (fabs (- 1 (* (/ b a) (/ b a))))))

prune1.2s

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 6.6b

regimes67.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 +o rules:numerics
(FPCore (a b)
  :name "Eccentricity of an ellipse"
  :pre (<= 0 b a 1)
  (sqrt (fabs (/ (- (* a a) (* b b)) (* a a)))))

Backtrace

partition: contract violation expected: list? given: 7.195675444988677 argument position: 2nd other arguments...: #<procedure:ordinary-value?>LC
partition/home/p92/racket/collects/racket/list.rkt5550
errors-score/data/pavpan/nightlies/herbie/develop/src/points.rkt3220
for-loop/data/pavpan/nightlies/herbie/develop/src/sandbox.rkt7512
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128
run/home/p92/racket/share/pkgs/profile-lib/main.rkt392
profile-thunk16/home/p92/racket/share/pkgs/profile-lib/main.rkt90
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128