Details

Time bar (total: 4.5s)

analyze2.0ms (0%)

Algorithm
search
Search
TrueOtherFalseIter
0%99.9%0.1%0
99.9%0%0.1%1

sample106.0ms (2.4%)

Algorithm
intervals
Results
52.0ms140×body1280valid
27.0ms24×body2560valid
13.0ms59×body640valid
4.0ms23×body320valid
1.0msbody160valid
0.0msbody80valid

simplify5.0ms (0.1%)

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (3.0ms)

IterNodesCost
0717
1717

prune6.0ms (0.1%)

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 41.0b

Counts
2 → 1

localize8.0ms (0.2%)

Local error

Found 2 expressions with local error:

1.3b
(- (cos (+ x eps)) (cos x))
3.4b
(cos (+ x eps))

rewrite11.0ms (0.2%)

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 add-exp-log add-cube-cbrt cos-sum add-cbrt-cube
associate--l- sub-neg flip3-- diff-log flip-- diff-cos distribute-lft-out-- difference-of-squares
Counts
2 → 23
Calls

2 calls:

6.0ms
(- (cos (+ x eps)) (cos x))
4.0ms
(cos (+ x eps))

series15.0ms (0.3%)

Counts
2 → 6
Calls

2 calls:

9.0ms
(- (cos (+ x eps)) (cos x))
5.0ms
(cos (+ x eps))

simplify27.0ms (0.6%)

Algorithm
egg-herbie
Counts
29 → 29
Iterations

Useful iterations: 0 (23.0ms)

IterNodesCost
04999270
14999270

prune63.0ms (1.4%)

Pruning

6 alts after pruning (6 fresh and 0 done)

PrunedKeptTotal
New23629
Fresh000
Picked101
Done000
Total24630

Merged error: 0.3b

Counts
30 → 6

localize16.0ms (0.4%)

Local error

Found 4 expressions with local error:

0.0b
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
0.0b
(+ x (+ x eps))
0.3b
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
3.3b
(sin (/ (+ x (+ x eps)) 2))

rewrite35.0ms (0.8%)

Algorithm
rewrite-expression-head
Rules
12×*-un-lft-identity
11×pow1 add-exp-log add-cbrt-cube
add-sqr-sqrt add-log-exp
add-cube-cbrt
associate-*l*
associate-*r* pow-prod-down prod-exp cbrt-unprod
sum-log distribute-lft-out
*-commutative sin-mult
+-commutative associate-+r+ flip3-+ associate-*r/ flip-+ unswap-sqr
Counts
4 → 60
Calls

4 calls:

11.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
10.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
7.0ms
(sin (/ (+ x (+ x eps)) 2))
5.0ms
(+ x (+ x eps))

series36.0ms (0.8%)

Counts
4 → 12
Calls

4 calls:

14.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
11.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
7.0ms
(sin (/ (+ x (+ x eps)) 2))
4.0ms
(+ x (+ x eps))

simplify57.0ms (1.3%)

Algorithm
egg-herbie
Counts
72 → 72
Iterations

Useful iterations: 0 (51.0ms)

IterNodesCost
04907890
14907890

prune180.0ms (4%)

Pruning

11 alts after pruning (11 fresh and 0 done)

PrunedKeptTotal
New64872
Fresh235
Picked101
Done000
Total671178

Merged error: 0.3b

Counts
78 → 11

localize12.0ms (0.3%)

Local error

Found 3 expressions with local error:

0.0b
(* -2 (* (sin (/ eps 2)) (sin (+ x (* eps 1/2)))))
0.3b
(* (sin (/ eps 2)) (sin (+ x (* eps 1/2))))
3.4b
(sin (+ x (* eps 1/2)))

rewrite22.0ms (0.5%)

Algorithm
rewrite-expression-head
Rules
10×pow1 add-exp-log add-cbrt-cube
add-sqr-sqrt
sin-sum
add-cube-cbrt *-un-lft-identity associate-*l*
distribute-rgt-in distribute-lft-in
associate-*r* pow-prod-down prod-exp cbrt-unprod
add-log-exp
*-commutative sin-mult
associate-*r/ unswap-sqr
Counts
3 → 52
Calls

3 calls:

8.0ms
(* -2 (* (sin (/ eps 2)) (sin (+ x (* eps 1/2)))))
8.0ms
(* (sin (/ eps 2)) (sin (+ x (* eps 1/2))))
4.0ms
(sin (+ x (* eps 1/2)))

series30.0ms (0.7%)

Counts
3 → 9
Calls

3 calls:

13.0ms
(* -2 (* (sin (/ eps 2)) (sin (+ x (* eps 1/2)))))
11.0ms
(* (sin (/ eps 2)) (sin (+ x (* eps 1/2))))
5.0ms
(sin (+ x (* eps 1/2)))

simplify76.0ms (1.7%)

Algorithm
egg-herbie
Counts
61 → 61
Iterations

Useful iterations: 0 (69.0ms)

IterNodesCost
04816851
14816851

prune171.0ms (3.8%)

Pruning

12 alts after pruning (12 fresh and 0 done)

PrunedKeptTotal
New54761
Fresh5510
Picked101
Done000
Total601272

Merged error: 0.1b

Counts
72 → 12

localize23.0ms (0.5%)

Local error

Found 4 expressions with local error:

0.1b
(+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2))))
0.1b
(* (sin x) (cos (* eps 1/2)))
0.2b
(* (cos x) (sin (* eps 1/2)))
0.3b
(* (sin (/ eps 2)) (+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2)))))

rewrite28.0ms (0.6%)

Algorithm
rewrite-expression-head
Rules
16×add-sqr-sqrt
10×pow1 add-exp-log add-cube-cbrt *-un-lft-identity add-cbrt-cube
associate-*r* associate-*l*
add-log-exp
pow-prod-down prod-exp *-commutative cbrt-unprod unswap-sqr
flip3-+ associate-*r/ flip-+
+-commutative distribute-rgt-in distribute-lft-in sum-log sin-cos-mult
Counts
4 → 70
Calls

4 calls:

10.0ms
(* (sin (/ eps 2)) (+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2)))))
7.0ms
(+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2))))
5.0ms
(* (cos x) (sin (* eps 1/2)))
5.0ms
(* (sin x) (cos (* eps 1/2)))

series62.0ms (1.4%)

Counts
4 → 12
Calls

4 calls:

25.0ms
(* (sin (/ eps 2)) (+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2)))))
18.0ms
(+ (* (sin x) (cos (* eps 1/2))) (* (cos x) (sin (* eps 1/2))))
9.0ms
(* (cos x) (sin (* eps 1/2)))
9.0ms
(* (sin x) (cos (* eps 1/2)))

simplify56.0ms (1.2%)

Algorithm
egg-herbie
Counts
82 → 82
Iterations

Useful iterations: 0 (46.0ms)

IterNodesCost
050301237

prune204.0ms (4.6%)

Pruning

15 alts after pruning (15 fresh and 0 done)

PrunedKeptTotal
New701282
Fresh8311
Picked101
Done000
Total791594

Merged error: 0.0b

Counts
94 → 15

regimes215.0ms (4.8%)

Accuracy

Total 0.3b remaining (88.3%)

Threshold costs 0.3b (88.3%)

bsearch0.0ms (0%)

simplify1.0ms (0%)

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
02527
12527

end0.0ms (0%)

sample3.0s (67.4%)

Algorithm
intervals
Results
1.7s4439×body1280valid
590.0ms646×body2560valid
454.0ms1872×body640valid
108.0ms678×body320valid
32.0ms288×body160valid
9.0ms77×body80valid

Profiling

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