Error in 15.0s

Runtime

Time bar (total: 15.0s)Debug logProfile

start95.0ms

Algorithm
intervals

setup156.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 6.7b

localize14.0ms

Local error

Found 3 expressions with local error:

6.7b
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))
0.4b
(* (/ b a) (/ b a))
0.0b
(- 1 (* (/ b a) (/ b a)))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
3 → 48
Calls

3 calls. Slowest were:

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

series60.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

23.0ms
(* (/ b a) (/ b a))
23.0ms
(- 1 (* (/ b a) (/ b a)))
15.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

simplify1.4s

Counts
28 → 57
Calls

28 calls. Slowest were:

889.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
65.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))
64.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))

prune655.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 6.6b

localize9.0ms

Local error

Found 3 expressions with local error:

6.7b
(sqrt (fabs (+ 1 (- (* (/ b a) (/ b a))))))
0.4b
(* (/ b a) (/ b a))
0.0b
(+ 1 (- (* (/ b a) (/ b a))))

rewrite5.0ms

Algorithm
rewrite-expression-head
Counts
3 → 50
Calls

3 calls. Slowest were:

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

series43.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

17.0ms
(+ 1 (- (* (/ b a) (/ b a))))
13.0ms
(* (/ b a) (/ b a))
12.0ms
(sqrt (fabs (+ 1 (- (* (/ b a) (/ b a))))))

simplify1.4s

Counts
31 → 59
Calls

31 calls. Slowest were:

901.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
70.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))
63.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))

prune670.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 6.6b

localize12.0ms

Local error

Found 4 expressions with local error:

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

rewrite16.0ms

Algorithm
rewrite-expression-head
Counts
4 → 74
Calls

4 calls. Slowest were:

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

series71.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

22.0ms
(* (/ b a) (/ b a))
20.0ms
(* (/ b a) (/ b a))
17.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

simplify2.6s

Counts
50 → 86
Calls

50 calls. Slowest were:

1.0s
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
884.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
64.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

prune1.3s

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 6.6b

localize33.0ms

Local error

Found 4 expressions with local error:

7.4b
(* b (* (/ 1 a) (/ b a)))
6.7b
(sqrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))
0.3b
(* (/ 1 a) (/ b a))
0.0b
(- 1 (* b (* (/ 1 a) (/ b a))))

rewrite17.0ms

Algorithm
rewrite-expression-head
Counts
4 → 57
Calls

4 calls. Slowest were:

7.0ms
(* (/ 1 a) (/ b a))
6.0ms
(* b (* (/ 1 a) (/ b a)))
3.0ms
(- 1 (* b (* (/ 1 a) (/ b a))))

series92.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

31.0ms
(- 1 (* b (* (/ 1 a) (/ b a))))
23.0ms
(* b (* (/ 1 a) (/ b a)))
21.0ms
(sqrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))

simplify1.7s

Counts
30 → 69
Calls

30 calls. Slowest were:

496.0ms
(sqrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))
360.0ms
(* (* (* (/ 1 a) (/ 1 a)) (/ 1 a)) (* (* (/ b a) (/ b a)) (/ b a)))
297.0ms
(sqrt (* (cbrt (fabs (- 1 (* b (* (/ 1 a) (/ b a)))))) (cbrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))))

prune801.0ms

Pruning

4 alts after pruning (1 fresh and 3 done)

Merged error: 6.6b

regimes103.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(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: 7.476293016961704 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