Error in 35.6s

Runtime

Time bar (total: 35.6s)Debug log

start590.0ms

Algorithm
intervals

setup67.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 60.3b

localize26.0ms

Local error

Found 2 expressions with local error:

2.7b
(- (/ 1 x) (/ 1 (tan x)))
0.0b
(/ 1 (tan x))

rewrite11.0ms

Algorithm
rewrite-expression-head
Counts
2 → 35
Calls

2 calls. Slowest were:

8.0ms
(- (/ 1 x) (/ 1 (tan x)))
2.0ms
(/ 1 (tan x))

series114.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

79.0ms
(- (/ 1 x) (/ 1 (tan x)))
36.0ms
(/ 1 (tan x))

simplify244.0ms

Counts
20 → 41
Calls

20 calls. Slowest were:

119.0ms
(- (/ 1 x) (+ (* 1/3 x) (* 1/45 (pow x 3))))
33.0ms
(+ (* 1/3 x) (+ (* 1/45 (pow x 3)) (* 2/945 (pow x 5))))
13.0ms
(/ (exp (/ 1 x)) (exp (/ 1 (tan x))))

prune379.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 0.4b

localize27.0ms

Local error

Found 3 expressions with local error:

0.4b
(* 1/3 x)
0.2b
(* 1/45 (pow x 3))
0.1b
(* 2/945 (pow x 5))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
3 → 32
Calls

3 calls. Slowest were:

2.0ms
(* 1/45 (pow x 3))
2.0ms
(* 2/945 (pow x 5))
1.0ms
(* 1/3 x)

series74.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

33.0ms
(* 2/945 (pow x 5))
28.0ms
(* 1/45 (pow x 3))
13.0ms
(* 1/3 x)

simplify66.0ms

Counts
16 → 41
Calls

16 calls. Slowest were:

11.0ms
(* 1/45 (pow x 3))
10.0ms
(* 1/45 (pow x 3))
10.0ms
(* 1/45 (pow x 3))

prune668.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.3b

localize23.0ms

Local error

Found 4 expressions with local error:

0.7b
(cbrt (* 1/3 x))
0.7b
(cbrt (* 1/3 x))
0.7b
(cbrt (* 1/3 x))
0.5b
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))

rewrite12.0ms

Algorithm
rewrite-expression-head
Counts
4 → 51
Calls

4 calls. Slowest were:

8.0ms
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))
1.0ms
(cbrt (* 1/3 x))
1.0ms
(cbrt (* 1/3 x))

series1.3s

Counts
4 → 12
Calls

4 calls. Slowest were:

372.0ms
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))
345.0ms
(cbrt (* 1/3 x))
327.0ms
(cbrt (* 1/3 x))

simplify109.0ms

Counts
31 → 63
Calls

31 calls. Slowest were:

11.0ms
(* (cbrt -1/3) (pow (* x -1) 1/3))
9.0ms
(* (pow (cbrt -1/3) 2) (pow (pow x 2) 1/3))
8.0ms
(* (pow (cbrt 1/3) 2) (pow (pow x 2) 1/3))

prune1.2s

Pruning

10 alts after pruning (8 fresh and 2 done)

Merged error: 0.2b

localize14.0ms

Local error

Found 4 expressions with local error:

0.7b
(cbrt (* 1/3 x))
0.7b
(cbrt (* 1/3 x))
0.6b
(cbrt x)
0.5b
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
4 → 50
Calls

4 calls. Slowest were:

4.0ms
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))
1.0ms
(cbrt (* 1/3 x))
0.0ms
(cbrt (* 1/3 x))

series1.3s

Counts
4 → 12
Calls

4 calls. Slowest were:

364.0ms
(* (cbrt (* 1/3 x)) (cbrt (* 1/3 x)))
331.0ms
(cbrt (* 1/3 x))
328.0ms
(cbrt (* 1/3 x))

simplify134.0ms

Counts
30 → 62
Calls

30 calls. Slowest were:

18.0ms
(* (pow (cbrt -1/3) 2) (pow (pow x 2) 1/3))
14.0ms
(* (pow (cbrt 1/3) 2) (pow (pow x 2) 1/3))
11.0ms
(* (cbrt -1/3) (pow (* x -1) 1/3))

prune1.3s

Pruning

16 alts after pruning (14 fresh and 2 done)

Merged error: 0.2b

regimes159.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x)
  :name "invcot (example 3.9)"
  :pre (and (< -0.026 x) (< x 0.026))

  :herbie-target
  (if (< (fabs x) 0.026) (* (/ x 3) (+ 1 (/ (* x x) 15))) (- (/ 1 x) (/ 1 (tan x))))

  (- (/ 1 x) (/ 1 (tan x))))

Backtrace

partition: contract violation expected: list? given: 0.33786412435822705 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