Details

Time bar (total: 2.9s)

analyze1.0ms (0%)

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

sample40.0ms (1.4%)

Algorithm
intervals
Results
15.0ms54×body1280valid
9.0ms50×body640valid
6.0ms125×body80valid
2.0ms15×body320valid
1.0ms12×body160valid

simplify4.0ms (0.1%)

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: 30.5b

Counts
2 → 1

localize6.0ms (0.2%)

Local error

Found 2 expressions with local error:

2.6b
(log (+ N 1.0))
2.8b
(- (log (+ N 1.0)) (log N))

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))

series9.0ms (0.3%)

Counts
2 → 6
Calls

2 calls:

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

simplify39.0ms (1.3%)

Algorithm
egg-herbie
Counts
46 → 46
Iterations

Useful iterations: 0 (35.0ms)

IterNodesCost
05481434

prune86.0ms (2.9%)

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New44246
Fresh000
Picked101
Done000
Total45247

Merged error: 0.0b

Counts
47 → 2

localize5.0ms (0.2%)

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1.0) N)
2.7b
(log (/ (+ N 1.0) N))

rewrite11.0ms (0.4%)

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 (0.3%)

Counts
2 → 6
Calls

2 calls:

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

simplify39.0ms (1.3%)

Algorithm
egg-herbie
Counts
66 → 66
Iterations

Useful iterations: 0 (33.0ms)

IterNodesCost
04970619
14970619

prune96.0ms (3.3%)

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 (0.3%)

Local error

Found 4 expressions with local error:

0.0b
(- (/ 1.0 N) (/ 0.5 (* N N)))
0.5b
(/ 0.5 (* N N))
0.6b
(/ 0.3333333333333333 (pow N 3))
13.2b
(+ (/ 0.3333333333333333 (pow N 3)) (- (/ 1.0 N) (/ 0.5 (* N N))))

rewrite54.0ms (1.8%)

Algorithm
rewrite-expression-head
Rules
43×times-frac
41×add-sqr-sqrt
38×*-un-lft-identity
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 difference-of-squares sqr-pow
cbrt-undiv frac-add
sub-neg flip3-- frac-2neg diff-log clear-num sum-log frac-sub flip-- div-inv distribute-lft-out distribute-lft-out--
+-commutative pow-to-exp associate-+r- associate-+r+ flip3-+ pow-exp prod-exp cbrt-unprod flip-+
Counts
4 → 122
Calls

4 calls:

31.0ms
(+ (/ 0.3333333333333333 (pow N 3)) (- (/ 1.0 N) (/ 0.5 (* N N))))
10.0ms
(- (/ 1.0 N) (/ 0.5 (* N N)))
5.0ms
(/ 0.3333333333333333 (pow N 3))
4.0ms
(/ 0.5 (* N N))

series16.0ms (0.6%)

Counts
4 → 12
Calls

4 calls:

6.0ms
(- (/ 1.0 N) (/ 0.5 (* N N)))
4.0ms
(+ (/ 0.3333333333333333 (pow N 3)) (- (/ 1.0 N) (/ 0.5 (* N N))))
4.0ms
(/ 0.3333333333333333 (pow N 3))
3.0ms
(/ 0.5 (* N N))

simplify37.0ms (1.3%)

Algorithm
egg-herbie
Counts
134 → 134
Iterations

Useful iterations: 0 (25.0ms)

IterNodesCost
051011475

prune243.0ms (8.3%)

Pruning

5 alts after pruning (3 fresh and 2 done)

PrunedKeptTotal
New1313134
Fresh000
Picked011
Done011
Total1315136

Merged error: 0.0b

Counts
136 → 5

localize16.0ms (0.6%)

Local error

Found 4 expressions with local error:

13.2b
(+ (/ 0.3333333333333333 (pow N 3)) (* (* (cbrt (- (/ 1.0 N) (/ 0.5 (* N N)))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))))
16.2b
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
16.2b
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
16.2b
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))

rewrite61.0ms (2.1%)

Algorithm
rewrite-expression-head
Rules
153×cbrt-div
81×frac-times
63×frac-add
51×flip3-- frac-sub flip--
37×add-sqr-sqrt
27×associate-*l/
24×cbrt-prod
15×associate-*r/
13×*-un-lft-identity
12×times-frac difference-of-squares
add-cube-cbrt
add-log-exp
pow1 add-exp-log add-cbrt-cube
pow1/3 distribute-lft-out--
+-commutative flip3-+ sum-log flip-+
Counts
4 → 131
Calls

4 calls:

20.0ms
(+ (/ 0.3333333333333333 (pow N 3)) (* (* (cbrt (- (/ 1.0 N) (/ 0.5 (* N N)))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))))
9.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
9.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
9.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))

series40.0ms (1.4%)

Counts
4 → 12
Calls

4 calls:

12.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
11.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
10.0ms
(cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))
8.0ms
(+ (/ 0.3333333333333333 (pow N 3)) (* (* (cbrt (- (/ 1.0 N) (/ 0.5 (* N N)))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))) (cbrt (- (/ 1.0 N) (/ 0.5 (* N N))))))

simplify74.0ms (2.5%)

Algorithm
egg-herbie
Counts
143 → 143
Iterations

Useful iterations: 0 (36.0ms)

IterNodesCost
050558187

prune804.0ms (27.4%)

Pruning

5 alts after pruning (3 fresh and 2 done)

PrunedKeptTotal
New1421143
Fresh022
Picked101
Done022
Total1435148

Merged error: 0b

Counts
148 → 5

regimes48.0ms (1.6%)

Accuracy

Total 0.0b remaining (11.1%)

Threshold costs 0.0b (11.1%)

bsearch13.0ms (0.4%)

Steps
ItersRangePoint
9
0.0006503813431540223
60978.321201749655
8131.4453676694275

simplify1.0ms (0%)

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03725
13725

end0.0ms (0%)

sample1.2s (39.4%)

Algorithm
intervals
Results
498.0ms1736×body1280valid
245.0ms1309×body640valid
201.0ms3981×body80valid
82.0ms637×body320valid
28.0ms337×body160valid

Profiling

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