Details

Time bar (total: 2.4s)

analyze1.0ms (0.1%)

Algorithm
search
Search
TrueOtherFalseIter
0%100%0%0
0%100%0%1
50%50%0%2
50%25%25%3
50%0%50%4

sample48.0ms (2%)

Algorithm
intervals
Results
16.0ms54×body1280valid
12.0ms118×body80valid
10.0ms47×body640valid
3.0ms23×body320valid
1.0ms14×body160valid

simplify5.0ms (0.2%)

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: 32.4b

Counts
2 → 1

localize7.0ms (0.3%)

Local error

Found 2 expressions with local error:

3.5b
(- (log (+ N 1.0)) (log N))
4.2b
(log (+ N 1.0))

rewrite11.0ms (0.4%)

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 → 40
Calls

2 calls:

7.0ms
(- (log (+ N 1.0)) (log N))
3.0ms
(log (+ N 1.0))

series10.0ms (0.4%)

Counts
2 → 6
Calls

2 calls:

6.0ms
(- (log (+ N 1.0)) (log N))
4.0ms
(log (+ N 1.0))

simplify41.0ms (1.7%)

Algorithm
egg-herbie
Counts
46 → 46
Iterations

Useful iterations: 0 (37.0ms)

IterNodesCost
05481434

prune93.0ms (3.8%)

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New44246
Fresh000
Picked101
Done000
Total45247

Merged error: 0.0b

Counts
47 → 2

localize10.0ms (0.4%)

Local error

Found 4 expressions with local error:

0.0b
(+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3)))
0.1b
(/ 0.3333333333333333 (pow N 3))
0.4b
(/ 0.5 (* N N))
10.8b
(- (+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3))) (/ 0.5 (* N N)))

rewrite72.0ms (3%)

Algorithm
rewrite-expression-head
Rules
42×*-un-lft-identity times-frac
35×add-sqr-sqrt
31×add-cube-cbrt
14×add-exp-log
13×associate-/r*
12×unpow-prod-down cube-prod
11×add-cbrt-cube add-log-exp
associate-/l*
div-exp
pow1 cube-mult unpow3 sqr-pow
cbrt-undiv frac-sub distribute-lft-out
frac-2neg flip3-+ diff-log frac-add clear-num sum-log flip-+ div-inv distribute-lft-out-- difference-of-squares
+-commutative pow-to-exp sub-neg flip3-- pow-exp prod-exp associate--l+ flip-- cbrt-unprod
Counts
4 → 120
Calls

4 calls:

31.0ms
(- (+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3))) (/ 0.5 (* N N)))
26.0ms
(+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3)))
7.0ms
(/ 0.3333333333333333 (pow N 3))
5.0ms
(/ 0.5 (* N N))

series19.0ms (0.8%)

Counts
4 → 12
Calls

4 calls:

8.0ms
(+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3)))
5.0ms
(- (+ (/ 1.0 N) (/ 0.3333333333333333 (pow N 3))) (/ 0.5 (* N N)))
4.0ms
(/ 0.3333333333333333 (pow N 3))
3.0ms
(/ 0.5 (* N N))

simplify48.0ms (1.9%)

Algorithm
egg-herbie
Counts
132 → 132
Iterations

Useful iterations: 0 (36.0ms)

IterNodesCost
050001465

prune228.0ms (9.3%)

Pruning

3 alts after pruning (2 fresh and 1 done)

PrunedKeptTotal
New1311132
Fresh011
Picked011
Done000
Total1313134

Merged error: 0.0b

Counts
134 → 3

localize7.0ms (0.3%)

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1.0) N)
3.7b
(log (/ (+ N 1.0) N))

rewrite12.0ms (0.5%)

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))

series9.0ms (0.4%)

Counts
2 → 6
Calls

2 calls:

5.0ms
(/ (+ N 1.0) N)
4.0ms
(log (/ (+ N 1.0) N))

simplify43.0ms (1.8%)

Algorithm
egg-herbie
Counts
66 → 66
Iterations

Useful iterations: 0 (37.0ms)

IterNodesCost
04970619
14970619

prune100.0ms (4.1%)

Pruning

4 alts after pruning (2 fresh and 2 done)

PrunedKeptTotal
New65166
Fresh011
Picked011
Done011
Total65469

Merged error: 0.0b

Counts
69 → 4

localize9.0ms (0.4%)

Local error

Found 4 expressions with local error:

0.3b
(cbrt (log (/ (+ N 1.0) N)))
3.7b
(log (/ (+ N 1.0) N))
3.7b
(log (/ (+ N 1.0) N))
3.7b
(log (/ (+ N 1.0) N))

rewrite18.0ms (0.8%)

Algorithm
rewrite-expression-head
Rules
48×log-prod
47×*-un-lft-identity
36×times-frac
29×add-sqr-sqrt add-cube-cbrt
13×add-exp-log
distribute-lft-out
pow1
rem-log-exp
cbrt-prod log-pow add-cbrt-cube add-log-exp
log-div div-exp div-inv
pow1/3
Counts
4 → 93
Calls

4 calls:

5.0ms
(log (/ (+ N 1.0) N))
5.0ms
(log (/ (+ N 1.0) N))
5.0ms
(log (/ (+ N 1.0) N))
1.0ms
(cbrt (log (/ (+ N 1.0) N)))

series25.0ms (1%)

Counts
4 → 12
Calls

4 calls:

13.0ms
(cbrt (log (/ (+ N 1.0) N)))
4.0ms
(log (/ (+ N 1.0) N))
4.0ms
(log (/ (+ N 1.0) N))
4.0ms
(log (/ (+ N 1.0) N))

simplify75.0ms (3.1%)

Algorithm
egg-herbie
Counts
105 → 105
Iterations

Useful iterations: 0 (65.0ms)

IterNodesCost
049621183
149621183

prune301.0ms (12.3%)

Pruning

4 alts after pruning (2 fresh and 2 done)

PrunedKeptTotal
New1041105
Fresh011
Picked101
Done022
Total1054109

Merged error: 0b

Counts
109 → 4

regimes36.0ms (1.5%)

Accuracy

Total 0.0b remaining (5%)

Threshold costs 0.0b (5%)

bsearch14.0ms (0.6%)

Steps
ItersRangePoint
8
46.411787995442566
414138.19612384395
7834.05326038219

simplify1.0ms (0.1%)

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03725
13725

end0.0ms (0%)

sample1.2s (48.9%)

Algorithm
intervals
Results
522.0ms1739×body1280valid
246.0ms1272×body640valid
212.0ms4081×body80valid
83.0ms602×body320valid
25.0ms306×body160valid

Profiling

Loading profile data...