Details

Time bar (total: 11.1s)

sample69.0ms

Algorithm
intervals
Results
25.0ms68×body1280valid
12.0ms258×body80nan
11.0ms45×body640valid
8.0ms117×body80valid
2.0ms13×body320valid
1.0ms13×body160valid

simplify5.0ms

Counts
1 → 1
Iterations
IterNodes
done12
212
111
06

prune3.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 32.7b

localize21.0ms

Local error

Found 2 expressions with local error:

3.1b
(log (+ N 1))
3.4b
(- (log (+ N 1)) (log N))

rewrite14.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
11×log-prod
add-sqr-sqrt pow1
log-pow add-cube-cbrt
log-div associate--l+ distribute-lft-out--
add-exp-log associate--r+
associate--l- flip3-+ add-cbrt-cube flip-+ insert-posit16 distribute-lft-out add-log-exp
sub-neg flip3-- diff-log rem-log-exp flip-- difference-of-squares
Counts
2 → 43
Calls
2 calls:
3.0ms
(log (+ N 1))
10.0ms
(- (log (+ N 1)) (log N))

series136.0ms

Counts
2 → 6
Calls
2 calls:
38.0ms
(log (+ N 1))
98.0ms
(- (log (+ N 1)) (log N))

simplify1.1s

Counts
49 → 49
Iterations
IterNodes
done2006
42006
31350
2463
1199
097

prune165.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.1b

localize25.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (/ 1/3 N) (* N N))
0.4b
(/ 1/3 N)
0.8b
(/ -1/2 (* N N))
13.4b
(+ (+ (/ -1/2 (* N N)) (/ 1 N)) (/ (/ 1/3 N) (* N N)))

rewrite125.0ms

Algorithm
rewrite-expression-head
Rules
43×times-frac
35×*-un-lft-identity
28×add-sqr-sqrt add-cube-cbrt
23×add-cbrt-cube add-exp-log
19×associate-/l*
cbrt-undiv div-exp add-log-exp
div-inv
associate-/r* distribute-lft-out
pow1 frac-add insert-posit16
clear-num sum-log frac-2neg prod-exp cbrt-unprod
flip3-+ flip-+
+-commutative associate-+l+ associate-/l/
Counts
4 → 117
Calls
4 calls:
11.0ms
(/ (/ 1/3 N) (* N N))
4.0ms
(/ 1/3 N)
7.0ms
(/ -1/2 (* N N))
101.0ms
(+ (+ (/ -1/2 (* N N)) (/ 1 N)) (/ (/ 1/3 N) (* N N)))

series165.0ms

Counts
4 → 12
Calls
4 calls:
65.0ms
(/ (/ 1/3 N) (* N N))
31.0ms
(/ 1/3 N)
42.0ms
(/ -1/2 (* N N))
26.0ms
(+ (+ (/ -1/2 (* N N)) (/ 1 N)) (/ (/ 1/3 N) (* N N)))

simplify1.4s

Counts
129 → 129
Iterations
IterNodes
done2002
32002
21848
1535
0200

prune530.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.1b

localize17.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1) N)
3.2b
(log (/ (+ N 1) N))

rewrite39.0ms

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 insert-posit16 div-inv add-log-exp associate-/l/
cbrt-undiv log-div clear-num frac-2neg flip3-+ log-pow flip-+
Counts
2 → 62
Calls
2 calls:
30.0ms
(/ (+ N 1) N)
8.0ms
(log (/ (+ N 1) N))

series118.0ms

Counts
2 → 6
Calls
2 calls:
68.0ms
(/ (+ N 1) N)
50.0ms
(log (/ (+ N 1) N))

simplify879.0ms

Counts
68 → 68
Iterations
IterNodes
done2000
32000
2620
1233
0102

prune232.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0.1b

localize20.0ms

Local error

Found 4 expressions with local error:

0.0b
(log (/ (+ N 1) (sqrt N)))
0.2b
(/ 1 (sqrt N))
0.3b
(/ (+ N 1) (sqrt N))
3.4b
(+ (log (/ 1 (sqrt N))) (log (/ (+ N 1) (sqrt N))))

rewrite65.0ms

Algorithm
rewrite-expression-head
Rules
121×*-un-lft-identity
108×times-frac
79×add-sqr-sqrt add-cube-cbrt
78×log-prod
60×sqrt-prod
28×associate-+r+
23×distribute-lft-out
22×associate-+l+
13×add-exp-log
12×associate-/r*
11×pow1
add-cbrt-cube
associate-/l*
log-pow div-inv
div-exp insert-posit16 add-log-exp
log-div pow-flip
cbrt-undiv clear-num frac-2neg flip3-+ rem-log-exp flip-+ associate-/l/
+-commutative rec-exp associate-+r- sum-log sqrt-pow1 pow1/2 1-exp associate-+l- inv-pow
Counts
4 → 203
Calls
4 calls:
4.0ms
(log (/ (+ N 1) (sqrt N)))
6.0ms
(/ 1 (sqrt N))
20.0ms
(/ (+ N 1) (sqrt N))
31.0ms
(+ (log (/ 1 (sqrt N))) (log (/ (+ N 1) (sqrt N))))

series539.0ms

Counts
4 → 12
Calls
4 calls:
161.0ms
(log (/ (+ N 1) (sqrt N)))
31.0ms
(/ 1 (sqrt N))
65.0ms
(/ (+ N 1) (sqrt N))
283.0ms
(+ (log (/ 1 (sqrt N))) (log (/ (+ N 1) (sqrt N))))

simplify1.2s

Counts
215 → 215
Iterations
IterNodes
done2002
32002
21519
1606
0271

prune750.0ms

Pruning

7 alts after pruning (4 fresh and 3 done)

Merged error: 0.1b

regimes105.0ms

Accuracy

100% (0.0b remaining)

Error of 0.1b against oracle of 0.0b and baseline of 31.4b

bsearch18.0ms

Steps
ItersRangePoint
4
5124.349206015988
8718.24681470488
7726.51655081009

simplify2.0ms

Iterations
IterNodes
done22
122
017

end0.0ms

sample3.4s

Algorithm
intervals
Results
970.0ms1718×body1280valid
946.0ms8102×body80nan
539.0ms1248×body640valid
440.0ms4146×body80valid
180.0ms605×body320valid
43.0ms283×body160valid