Error in 23.1s

Runtime

Time bar (total: 23.1s)Debug log

start249.0ms

Algorithm
intervals

setup23.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 39.2b

localize23.0ms

Local error

Found 2 expressions with local error:

2.1b
(sin (+ eps x))
1.4b
(- (sin (+ eps x)) (sin x))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
2 → 24
Calls

2 calls. Slowest were:

5.0ms
(- (sin (+ eps x)) (sin x))
2.0ms
(sin (+ eps x))

series65.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

49.0ms
(- (sin (+ eps x)) (sin x))
16.0ms
(sin (+ eps x))

simplify600.0ms

Counts
13 → 30
Calls

13 calls. Slowest were:

457.0ms
(- eps (+ (* 1/6 (pow eps 3)) (* 1/2 (* x (pow eps 2)))))
67.0ms
(- (+ x eps) (* 1/6 (pow eps 3)))
19.0ms
(/ (exp (sin (+ eps x))) (exp (sin x)))

prune366.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

localize28.0ms

Local error

Found 4 expressions with local error:

2.6b
(- (* (cos eps) (sin x)) (sin x))
0.2b
(* (sin eps) (cos x))
0.2b
(* (cos eps) (sin x))
0.1b
(+ (* (sin eps) (cos x)) (- (* (cos eps) (sin x)) (sin x)))

rewrite25.0ms

Algorithm
rewrite-expression-head
Counts
4 → 65
Calls

4 calls. Slowest were:

12.0ms
(+ (* (sin eps) (cos x)) (- (* (cos eps) (sin x)) (sin x)))
5.0ms
(- (* (cos eps) (sin x)) (sin x))
3.0ms
(* (sin eps) (cos x))

series359.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

150.0ms
(+ (* (sin eps) (cos x)) (- (* (cos eps) (sin x)) (sin x)))
75.0ms
(- (* (cos eps) (sin x)) (sin x))
69.0ms
(* (cos eps) (sin x))

simplify2.6s

Counts
41 → 77
Calls

41 calls. Slowest were:

543.0ms
(* 2 (+ (* (* (cos eps) (sin x)) (* (cos eps) (sin x))) (+ (* (sin x) (sin x)) (* (* (cos eps) (sin x)) (sin x)))))
355.0ms
(+ (* (+ (sin (- eps x)) (sin (+ eps x))) (+ (* (cos eps) (sin x)) (sin x))) (* 2 (- (* (* (cos eps) (sin x)) (* (cos eps) (sin x))) (* (sin x) (sin x)))))
344.0ms
(- eps (+ (* 1/6 (pow eps 3)) (* 1/2 (* x (pow eps 2)))))

prune1.1s

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 0.2b

localize17.0ms

Local error

Found 4 expressions with local error:

2.6b
(- (cos eps) 1)
0.2b
(* (sin eps) (cos x))
0.1b
(* (sin x) (- (cos eps) 1))
0.1b
(+ (* (sin eps) (cos x)) (* (sin x) (- (cos eps) 1)))

rewrite32.0ms

Algorithm
rewrite-expression-head
Counts
4 → 71
Calls

4 calls. Slowest were:

11.0ms
(* (sin x) (- (cos eps) 1))
8.0ms
(+ (* (sin eps) (cos x)) (* (sin x) (- (cos eps) 1)))
7.0ms
(* (sin eps) (cos x))

series286.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

171.0ms
(+ (* (sin eps) (cos x)) (* (sin x) (- (cos eps) 1)))
51.0ms
(* (sin eps) (cos x))
45.0ms
(* (sin x) (- (cos eps) 1))

simplify2.4s

Counts
46 → 83
Calls

46 calls. Slowest were:

450.0ms
(- eps (+ (* 1/6 (pow eps 3)) (* 1/2 (* x (pow eps 2)))))
351.0ms
(* (* (* (sin x) (sin x)) (sin x)) (* (* (- (cos eps) 1) (- (cos eps) 1)) (- (cos eps) 1)))
336.0ms
(+ (* (+ (sin (- eps x)) (sin (+ eps x))) (+ (* (cos eps) (cos eps)) (+ (* 1 1) (* (cos eps) 1)))) (* 2 (* (sin x) (- (pow (cos eps) 3) (pow 1 3)))))

prune1.2s

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0.1b

localize15.0ms

Local error

Found 4 expressions with local error:

2.7b
(log (exp (- (cos eps) 1)))
2.6b
(- (cos eps) 1)
0.2b
(* (sin eps) (cos x))
0.1b
(* (sin x) (log (exp (- (cos eps) 1))))

rewrite52.0ms

Algorithm
rewrite-expression-head
Counts
4 → 81
Calls

4 calls. Slowest were:

26.0ms
(* (sin x) (log (exp (- (cos eps) 1))))
12.0ms
(log (exp (- (cos eps) 1)))
7.0ms
(* (sin eps) (cos x))

series148.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

60.0ms
(* (sin eps) (cos x))
42.0ms
(* (sin x) (log (exp (- (cos eps) 1))))
26.0ms
(- (cos eps) 1)

simplify1.6s

Counts
56 → 93
Calls

56 calls. Slowest were:

474.0ms
(* (* (* (sin x) (sin x)) (sin x)) (* (* (log (exp (- (cos eps) 1))) (log (exp (- (cos eps) 1)))) (log (exp (- (cos eps) 1)))))
272.0ms
(- eps (+ (* 1/6 (pow eps 3)) (* 1/2 (* (pow x 2) eps))))
101.0ms
(* (* (* (sin eps) (sin eps)) (sin eps)) (* (* (cos x) (cos x)) (cos x)))

prune1.5s

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0.1b

regimes214.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x eps)
  :name "2sin (example 3.3)"

  :herbie-target
  (* 2 (* (cos (+ x (/ eps 2))) (sin (/ eps 2))))

  (- (sin (+ x eps)) (sin x)))

Backtrace

partition: contract violation expected: list? given: 0.5199912257470725 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