Details

Time bar (total: 1.9s)

analyze1.0ms (0.1%)

Algorithm
search
Search
TrueOtherFalseIter
0%100%0%0
100%0%0%1

sample28.0ms (1.5%)

Algorithm
intervals
Results
14.0ms91×body1280valid
5.0ms140×body80valid
2.0ms13×body640valid
1.0msbody320valid
0.0msbody160valid

simplify5.0ms (0.3%)

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (3.0ms)

IterNodesCost
0717
1717

prune5.0ms (0.2%)

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 11.5b

Counts
2 → 1

localize10.0ms (0.5%)

Local error

Found 2 expressions with local error:

0.0b
(atan (+ N 1.0))
1.0b
(- (atan (+ N 1.0)) (atan N))

rewrite5.0ms (0.3%)

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 add-exp-log add-cube-cbrt add-cbrt-cube
sub-neg flip3-- diff-log diff-atan flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 21
Calls

2 calls:

3.0ms
(- (atan (+ N 1.0)) (atan N))
1.0ms
(atan (+ N 1.0))

series4.0ms (0.2%)

Counts
2 → 6
Calls

2 calls:

3.0ms
(- (atan (+ N 1.0)) (atan N))
1.0ms
(atan (+ N 1.0))

simplify81.0ms (4.3%)

Algorithm
egg-herbie
Counts
27 → 27
Iterations

Useful iterations: 0 (77.0ms)

IterNodesCost
05349236

prune48.0ms (2.6%)

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New25227
Fresh000
Picked101
Done000
Total26228

Merged error: 0.1b

Counts
28 → 2

localize6.0ms (0.3%)

Local error

Found 2 expressions with local error:

0.0b
(* N (+ N 1.0))
0.1b
(atan2 1.0 (+ 1 (* N (+ N 1.0))))

rewrite7.0ms (0.4%)

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity
pow1 add-exp-log add-cube-cbrt associate-*r* add-cbrt-cube
associate-*l*
associate-*r/ add-log-exp
distribute-rgt-in distribute-lft-in flip3-+ pow-prod-down prod-exp *-commutative cbrt-unprod flip-+ distribute-lft-out unswap-sqr
Counts
2 → 30
Calls

2 calls:

6.0ms
(* N (+ N 1.0))
1.0ms
(atan2 1.0 (+ 1 (* N (+ N 1.0))))

series7.0ms (0.3%)

Counts
2 → 6
Calls

2 calls:

4.0ms
(* N (+ N 1.0))
2.0ms
(atan2 1.0 (+ 1 (* N (+ N 1.0))))

simplify70.0ms (3.8%)

Algorithm
egg-herbie
Counts
36 → 36
Iterations

Useful iterations: 0 (66.0ms)

IterNodesCost
04907272
14907272

prune69.0ms (3.7%)

Pruning

5 alts after pruning (4 fresh and 1 done)

PrunedKeptTotal
New33336
Fresh011
Picked011
Done000
Total33538

Merged error: 0.1b

Counts
38 → 5

localize10.0ms (0.5%)

Local error

Found 4 expressions with local error:

0.5b
(* (cbrt (* N (+ 1.0 N))) (cbrt (* N (+ 1.0 N))))
16.2b
(cbrt (* N (+ 1.0 N)))
16.2b
(cbrt (* N (+ 1.0 N)))
16.2b
(cbrt (* N (+ 1.0 N)))

rewrite22.0ms (1.2%)

Algorithm
rewrite-expression-head
Rules
20×associate-*r/
18×cbrt-div
11×pow1
10×add-sqr-sqrt
flip3-+ pow1/3 flip-+
add-cube-cbrt *-un-lft-identity
cbrt-prod
add-exp-log
frac-times swap-sqr associate-*r* associate-*l* add-cbrt-cube add-log-exp
pow-prod-down associate-*l/ pow-sqr pow-prod-up
pow2 pow-plus prod-exp *-commutative cbrt-unprod unswap-sqr
Counts
4 → 72
Calls

4 calls:

6.0ms
(* (cbrt (* N (+ 1.0 N))) (cbrt (* N (+ 1.0 N))))
5.0ms
(cbrt (* N (+ 1.0 N)))
4.0ms
(cbrt (* N (+ 1.0 N)))
4.0ms
(cbrt (* N (+ 1.0 N)))

series41.0ms (2.2%)

Counts
4 → 12
Calls

4 calls:

12.0ms
(* (cbrt (* N (+ 1.0 N))) (cbrt (* N (+ 1.0 N))))
12.0ms
(cbrt (* N (+ 1.0 N)))
9.0ms
(cbrt (* N (+ 1.0 N)))
9.0ms
(cbrt (* N (+ 1.0 N)))

simplify55.0ms (3%)

Algorithm
egg-herbie
Counts
84 → 84
Iterations

Useful iterations: 0 (46.0ms)

IterNodesCost
049501066
149501066

prune228.0ms (12.2%)

Pruning

5 alts after pruning (3 fresh and 2 done)

PrunedKeptTotal
New84084
Fresh033
Picked011
Done011
Total84589

Merged error: 0.1b

Counts
89 → 5

localize9.0ms (0.5%)

Local error

Found 4 expressions with local error:

0.1b
(atan2 1.0 (+ 1 (* N (+ 1.0 N))))
0.6b
(* (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))) (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))))
15.7b
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))
15.7b
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))

rewrite13.0ms (0.7%)

Algorithm
rewrite-expression-head
Rules
28×add-sqr-sqrt
24×sqrt-prod
21×pow1
14×add-cube-cbrt *-un-lft-identity
10×sqrt-pow1 pow1/2
swap-sqr
add-exp-log associate-*r* associate-*l* add-cbrt-cube
pow-prod-up
add-log-exp unswap-sqr
pow-prod-down pow-sqr
rem-sqrt-square
pow2 pow-plus sqrt-unprod prod-exp rem-square-sqrt *-commutative cbrt-unprod
Counts
4 → 82
Calls

4 calls:

6.0ms
(* (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))) (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))))
1.0ms
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))
1.0ms
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))
1.0ms
(atan2 1.0 (+ 1 (* N (+ 1.0 N))))

series17.0ms (0.9%)

Counts
4 → 12
Calls

4 calls:

6.0ms
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))
6.0ms
(sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N)))))
2.0ms
(* (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))) (sqrt (atan2 1.0 (+ 1 (* N (+ 1.0 N))))))
2.0ms
(atan2 1.0 (+ 1 (* N (+ 1.0 N))))

simplify45.0ms (2.4%)

Algorithm
egg-herbie
Counts
94 → 94
Iterations

Useful iterations: 0 (36.0ms)

IterNodesCost
05253989

prune204.0ms (10.9%)

Pruning

8 alts after pruning (5 fresh and 3 done)

PrunedKeptTotal
New91394
Fresh022
Picked011
Done022
Total91899

Merged error: 0.1b

Counts
99 → 8

regimes47.0ms (2.5%)

Accuracy

Total 0.0b remaining (13.1%)

Threshold costs 0.0b (13.1%)

bsearch0.0ms (0%)

simplify1.0ms (0.1%)

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
0119
1119

end0.0ms (0%)

sample830.0ms (44.4%)

Algorithm
intervals
Results
457.0ms2851×body1280valid
140.0ms4039×body80valid
82.0ms654×body640valid
30.0ms312×body320valid
10.0ms144×body160valid

Profiling

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