Error in 15.3s

Runtime

Time bar (total: 15.3s)Debug logProfile

start64.0ms

Algorithm
intervals

setup223.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 6.7b

localize13.0ms

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)))

rewrite11.0ms

Algorithm
rewrite-expression-head
Counts
3 → 54
Calls

3 calls. Slowest were:

6.0ms
(* (/ b a) (/ b a))
2.0ms
(- 1 (* (/ b a) (/ b a)))
2.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

series49.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

21.0ms
(- 1 (* (/ b a) (/ b a)))
14.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))
13.0ms
(* (/ b a) (/ b a))

simplify1.4s

Counts
28 → 63
Calls

28 calls. Slowest were:

951.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
71.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))
68.0ms
(sqrt (* (cbrt (fabs (- 1 (* (/ b a) (/ b a))))) (cbrt (fabs (- 1 (* (/ b a) (/ b a)))))))

prune706.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 6.6b

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))))

rewrite11.0ms

Algorithm
rewrite-expression-head
Counts
3 → 56
Calls

3 calls. Slowest were:

6.0ms
(* (/ b a) (/ b a))
2.0ms
(+ 1 (- (* (/ b a) (/ b a))))
2.0ms
(sqrt (fabs (+ 1 (- (* (/ b a) (/ b a))))))

series59.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

22.0ms
(sqrt (fabs (+ 1 (- (* (/ b a) (/ b a))))))
19.0ms
(* (/ b a) (/ b a))
18.0ms
(+ 1 (- (* (/ b a) (/ b a))))

simplify1.7s

Counts
31 → 65
Calls

31 calls. Slowest were:

1.0s
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
69.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))
67.0ms
(sqrt (* (cbrt (fabs (+ 1 (- (* (/ b a) (/ b a)))))) (cbrt (fabs (+ 1 (- (* (/ b a) (/ b a))))))))

prune793.0ms

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))

rewrite15.0ms

Algorithm
rewrite-expression-head
Counts
4 → 82
Calls

4 calls. Slowest were:

6.0ms
(* (/ b a) (/ b a))
5.0ms
(* (/ b a) (/ b a))
2.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

series70.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

23.0ms
(* (/ b a) (/ b a))
22.0ms
(* (/ b a) (/ b a))
13.0ms
(sqrt (fabs (- 1 (* (/ b a) (/ b a)))))

simplify2.7s

Counts
50 → 94
Calls

50 calls. Slowest were:

955.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
913.0ms
(* (* (* (/ b a) (/ b a)) (/ b a)) (* (* (/ b a) (/ b a)) (/ b a)))
70.0ms
(sqrt (fabs (- 1 (/ (pow b 2) (pow a 2)))))

prune1.5s

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 6.6b

localize31.0ms

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))))

rewrite18.0ms

Algorithm
rewrite-expression-head
Counts
4 → 65
Calls

4 calls. Slowest were:

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

series93.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

28.0ms
(- 1 (* b (* (/ 1 a) (/ b a))))
27.0ms
(* b (* (/ 1 a) (/ b a)))
21.0ms
(sqrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))

simplify1.7s

Counts
30 → 77
Calls

30 calls. Slowest were:

435.0ms
(* (* (* (/ 1 a) (/ 1 a)) (/ 1 a)) (* (* (/ b a) (/ b a)) (/ b a)))
322.0ms
(sqrt (sqrt (fabs (- 1 (* b (* (/ 1 a) (/ b a)))))))
322.0ms
(sqrt (* (cbrt (fabs (- 1 (* b (* (/ 1 a) (/ b a)))))) (cbrt (fabs (- 1 (* b (* (/ 1 a) (/ b a))))))))

prune966.0ms

Pruning

4 alts after pruning (1 fresh and 3 done)

Merged error: 6.6b

regimes71.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 +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: 7.476293016961704 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