Details

Time bar (total: 2.7s)

analyze2.0ms

Algorithm
search

sample37.0ms

Algorithm
intervals
Results
15.0ms51×body1280valid
7.0ms141×body80valid
6.0ms35×body640valid
2.0ms17×body320valid
1.0ms12×body160valid

simplify4.0ms

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
094
1104
2104

prune3.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 26.9b

Counts
2 → 1

localize7.0ms

Local error

Found 2 expressions with local error:

2.7b
(- (log (+ N 1.0)) (log N))
3.5b
(log (+ N 1.0))

rewrite10.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
11×log-prod
pow1 add-sqr-sqrt
add-cube-cbrt log-pow
log-div associate--l+ distribute-lft-out--
add-exp-log associate--r+
associate--l- flip3-+ add-cbrt-cube flip-+ distribute-lft-out add-log-exp
sub-neg flip3-- diff-log rem-log-exp flip-- difference-of-squares
Counts
2 → 41
Calls
2 calls:
6.0ms
(- (log (+ N 1.0)) (log N))
3.0ms
(log (+ N 1.0))

series154.0ms

Counts
2 → 6
Calls
2 calls:
6.0ms
(- (log (+ N 1.0)) (log N))
148.0ms
(log (+ N 1.0))

simplify57.0ms

Algorithm
egg-herbie
Counts
47 → 47
Iterations

Useful iterations: 2 (14.0ms)

IterNodesCost
0232285
1628264
22171244
35001244

prune76.0ms

Filtered
34 candidates to 47 candidates (-38.2%)
Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New45247
Fresh000
Picked101
Done000
Total46248

Merged error: 0.0b

Counts
48 → 2

localize5.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1.0) N)
2.6b
(log (/ (+ N 1.0) N))

rewrite11.0ms

Algorithm
rewrite-expression-head
Rules
33×*-un-lft-identity
24×times-frac
19×add-sqr-sqrt add-cube-cbrt
16×log-prod
add-exp-log distribute-lft-out
add-cbrt-cube associate-/l*
pow1 associate-/r*
div-exp rem-log-exp div-inv associate-/l/ add-log-exp
cbrt-undiv log-div frac-2neg flip3-+ clear-num log-pow flip-+
Counts
2 → 60
Calls
2 calls:
5.0ms
(/ (+ N 1.0) N)
4.0ms
(log (/ (+ N 1.0) N))

series8.0ms

Counts
2 → 6
Calls
2 calls:
4.0ms
(/ (+ N 1.0) N)
4.0ms
(log (/ (+ N 1.0) N))

simplify92.0ms

Algorithm
egg-herbie
Counts
66 → 66
Iterations

Useful iterations: 2 (17.0ms)

IterNodesCost
0221370
1736343
23220333
35002333

prune70.0ms

Filtered
46 candidates to 66 candidates (-43.5%)
Pruning

2 alts after pruning (1 fresh and 1 done)

PrunedKeptTotal
New66066
Fresh011
Picked011
Done000
Total66268

Merged error: 0.0b

Counts
68 → 2

localize10.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N))
0.1b
(* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5))
0.4b
(/ 1 (pow N 2))

rewrite41.0ms

Algorithm
rewrite-expression-head
Rules
59×add-sqr-sqrt
57×times-frac
42×*-un-lft-identity
36×add-cube-cbrt
32×add-exp-log
28×associate-*l*
23×unpow-prod-down
12×div-exp
10×prod-exp add-cbrt-cube
unpow2 unswap-sqr sqr-pow
associate-/r*
pow-to-exp rec-exp 1-exp associate-*r* pow-exp
pow1 frac-add add-log-exp
distribute-rgt-in frac-times sub-neg associate-+l+ flip3-- distribute-lft-in associate-*r/ flip--
associate-/l*
cbrt-undiv associate-*l/ cbrt-unprod div-inv difference-of-squares
+-commutative pow-flip frac-2neg flip3-+ pow-prod-down clear-num sum-log *-commutative flip-+ distribute-lft-out-- inv-pow
Counts
3 → 150
Calls
3 calls:
14.0ms
(+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N))
16.0ms
(* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5))
5.0ms
(/ 1 (pow N 2))

series15.0ms

Counts
3 → 9
Calls
3 calls:
7.0ms
(+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N))
6.0ms
(* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5))
2.0ms
(/ 1 (pow N 2))

simplify71.0ms

Algorithm
egg-herbie
Counts
159 → 159
Iterations

Useful iterations: 2 (58.0ms)

IterNodesCost
05831075
12726892
25001829

prune166.0ms

Filtered
89 candidates to 159 candidates (-78.7%)
Pruning

4 alts after pruning (2 fresh and 2 done)

PrunedKeptTotal
New1572159
Fresh000
Picked011
Done011
Total1574161

Merged error: 0.0b

Counts
161 → 4

localize15.0ms

Local error

Found 4 expressions with local error:

0.4b
(/ 1 (pow N 2))
21.8b
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
21.8b
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
21.8b
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))

rewrite54.0ms

Algorithm
rewrite-expression-head
Rules
24×add-sqr-sqrt add-cube-cbrt *-un-lft-identity times-frac
21×cbrt-div
15×frac-add
13×add-exp-log
12×unpow-prod-down
cbrt-prod
associate-/r*
frac-times flip3-- associate-*r/ div-exp add-cbrt-cube flip--
pow1 unpow2 add-log-exp sqr-pow
pow-to-exp rec-exp flip3-+ pow1/3 1-exp associate-*l/ pow-exp flip-+ associate-/l*
cbrt-undiv pow-flip frac-2neg clear-num div-inv inv-pow
Counts
4 → 111
Calls
4 calls:
5.0ms
(/ 1 (pow N 2))
17.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
14.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
14.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))

series39.0ms

Counts
4 → 12
Calls
4 calls:
2.0ms
(/ 1 (pow N 2))
12.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
12.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))
13.0ms
(cbrt (+ (* (/ 1 (pow N 2)) (- (/ 0.3333333333333333 N) 0.5)) (/ 1.0 N)))

simplify64.0ms

Algorithm
egg-herbie
Counts
123 → 123
Iterations

Useful iterations: 2 (48.0ms)

IterNodesCost
05141537
120611434
250011376

prune461.0ms

Filtered
82 candidates to 123 candidates (-50.0%)
Pruning

4 alts after pruning (2 fresh and 2 done)

PrunedKeptTotal
New1221123
Fresh011
Picked101
Done022
Total1234127

Merged error: 0.0b

Counts
127 → 4

regimes39.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 29.3b

bsearch21.0ms

Steps
ItersRangePoint
9
0.007000281397181652
12262.697333085898
8156.864740756527

simplify1.0ms

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
02410
12410

end0.0ms

analyze1.0ms

Algorithm
search

sample1.1s

Algorithm
intervals
Results
511.0ms1763×body1280valid
226.0ms1237×body640valid
203.0ms4093×body80valid
80.0ms618×body320valid
22.0ms289×body160valid

Profiling

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