Error in 34.3s

Runtime

Time bar (total: 34.3s)Debug logProfile

start189.0ms

Algorithm
intervals

setup83.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.5b

localize25.0ms

Local error

Found 2 expressions with local error:

16.5b
(/ (- 1 (cos x)) (* x x))
1.6b
(- 1 (cos x))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
2 → 33
Calls

2 calls. Slowest were:

5.0ms
(/ (- 1 (cos x)) (* x x))
1.0ms
(- 1 (cos x))

series51.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

32.0ms
(/ (- 1 (cos x)) (* x x))
19.0ms
(- 1 (cos x))

simplify598.0ms

Counts
19 → 39
Calls

19 calls. Slowest were:

369.0ms
(/ (* (* (- 1 (cos x)) (- 1 (cos x))) (- 1 (cos x))) (* (* (* x x) (* x x)) (* x x)))
45.0ms
(- (log (- 1 (cos x))) (log (* x x)))
45.0ms
(- (+ (* 1/2 (pow x 2)) (* 1/720 (pow x 6))) (* 1/24 (pow x 4)))

prune376.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 0.0b

localize28.0ms

Local error

Found 4 expressions with local error:

16.3b
(/ (* (sin x) (sin x)) (* (* x x) (+ 1 (cos x))))
0.4b
(+ 1 (cos x))
0.3b
(* (sin x) (sin x))
0.1b
(* (* x x) (+ 1 (cos x)))

rewrite25.0ms

Algorithm
rewrite-expression-head
Counts
4 → 76
Calls

4 calls. Slowest were:

16.0ms
(/ (* (sin x) (sin x)) (* (* x x) (+ 1 (cos x))))
4.0ms
(* (* x x) (+ 1 (cos x)))
3.0ms
(* (sin x) (sin x))

series106.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

49.0ms
(/ (* (sin x) (sin x)) (* (* x x) (+ 1 (cos x))))
21.0ms
(* (* x x) (+ 1 (cos x)))
20.0ms
(* (sin x) (sin x))

simplify5.2s

Counts
51 → 88
Calls

51 calls. Slowest were:

1.1s
(* (* (* (* x x) (* x x)) (* x x)) (* (* (+ 1 (cos x)) (+ 1 (cos x))) (+ 1 (cos x))))
407.0ms
(/ (* (* (* (sin x) (sin x)) (sin x)) (* (* (sin x) (sin x)) (sin x))) (* (* (* (* x x) (+ 1 (cos x))) (* (* x x) (+ 1 (cos x)))) (* (* x x) (+ 1 (cos x)))))
406.0ms
(/ (* (* (* (sin x) (sin x)) (* (sin x) (sin x))) (* (sin x) (sin x))) (* (* (* (* x x) (+ 1 (cos x))) (* (* x x) (+ 1 (cos x)))) (* (* x x) (+ 1 (cos x)))))

prune987.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 0.0b

localize50.0ms

Local error

Found 4 expressions with local error:

16.3b
(/ (* (sin x) (sin x)) (/ (* (* x x) (+ (pow 1 3) (pow (cos x) 3))) (- (* (cos x) (cos x)) (+ (cos x) -1))))
1.6b
(+ (cos x) -1)
0.4b
(pow (cos x) 3)
0.3b
(* (sin x) (sin x))

rewrite68.0ms

Algorithm
rewrite-expression-head
Counts
4 → 102
Calls

4 calls. Slowest were:

53.0ms
(/ (* (sin x) (sin x)) (/ (* (* x x) (+ (pow 1 3) (pow (cos x) 3))) (- (* (cos x) (cos x)) (+ (cos x) -1))))
7.0ms
(* (sin x) (sin x))
4.0ms
(+ (cos x) -1)

series172.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

105.0ms
(/ (* (sin x) (sin x)) (/ (* (* x x) (+ (pow 1 3) (pow (cos x) 3))) (- (* (cos x) (cos x)) (+ (cos x) -1))))
28.0ms
(+ (cos x) -1)
23.0ms
(pow (cos x) 3)

simplify11.4s

Counts
87 → 114
Calls

87 calls. Slowest were:

606.0ms
(/ (* (* (* (sin x) (sin x)) (* (sin x) (sin x))) (* (sin x) (sin x))) (/ (* (* (* (* x x) (* x x)) (* x x)) (* (* (+ (pow 1 3) (pow (cos x) 3)) (+ (pow 1 3) (pow (cos x) 3))) (+ (pow 1 3) (pow (cos x) 3)))) (* (* (- (* (cos x) (cos x)) (+ (cos x) -1)) (- (* (cos x) (cos x)) (+ (cos x) -1))) (- (* (cos x) (cos x)) (+ (cos x) -1)))))
564.0ms
(/ (sin x) (/ (* (* x x) (+ (pow 1 3) (pow (cos x) 3))) (- (pow (* (cos x) (cos x)) 3) (pow (+ (cos x) -1) 3))))
557.0ms
(/ (* (* (* (sin x) (sin x)) (sin x)) (* (* (sin x) (sin x)) (sin x))) (/ (* (* (* (* x x) (* x x)) (* x x)) (* (* (+ (pow 1 3) (pow (cos x) 3)) (+ (pow 1 3) (pow (cos x) 3))) (+ (pow 1 3) (pow (cos x) 3)))) (* (* (- (* (cos x) (cos x)) (+ (cos x) -1)) (- (* (cos x) (cos x)) (+ (cos x) -1))) (- (* (cos x) (cos x)) (+ (cos x) -1)))))

prune1.9s

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0.0b

localize17.0ms

Local error

Found 4 expressions with local error:

16.3b
(/ (* (sin x) (sin x)) (* x (* x (+ 1 (cos x)))))
0.4b
(+ 1 (cos x))
0.3b
(* (sin x) (sin x))
0.1b
(* x (+ 1 (cos x)))

rewrite28.0ms

Algorithm
rewrite-expression-head
Counts
4 → 68
Calls

4 calls. Slowest were:

16.0ms
(/ (* (sin x) (sin x)) (* x (* x (+ 1 (cos x)))))
7.0ms
(* (sin x) (sin x))
2.0ms
(* x (+ 1 (cos x)))

series133.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

63.0ms
(/ (* (sin x) (sin x)) (* x (* x (+ 1 (cos x)))))
29.0ms
(* x (+ 1 (cos x)))
26.0ms
(* (sin x) (sin x))

simplify2.9s

Counts
44 → 80
Calls

44 calls. Slowest were:

755.0ms
(- (+ (log (sin x)) (log (sin x))) (log (* x (* x (+ 1 (cos x))))))
354.0ms
(- (log (* (sin x) (sin x))) (log (* x (* x (+ 1 (cos x))))))
326.0ms
(/ (* (* (* (sin x) (sin x)) (sin x)) (* (* (sin x) (sin x)) (sin x))) (* (* (* x (* x (+ 1 (cos x)))) (* x (* x (+ 1 (cos x))))) (* x (* x (+ 1 (cos x))))))

prune773.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0b

regimes168.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(FPCore (x)
  :name "cos2 (problem 3.4.1)"
  (/ (- 1 (cos x)) (* x x)))

Backtrace

partition: contract violation expected: list? given: 0.2833984452175627 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