Details

Time bar (total: 19.4s)

sample65.0ms

Algorithm
intervals
Results
29.0ms74×body1280valid
11.0ms137×body80valid
9.0ms28×body640valid
3.0ms14×body320valid
1.0msbody160valid

simplify20.0ms

Counts
1 → 1

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.5b

localize22.0ms

Local error

Found 1 expressions with local error:

1.8b
(- (atan (+ N 1)) (atan N))

rewrite10.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt *-un-lft-identity
prod-diff
add-cube-cbrt
fma-neg add-log-exp
expm1-log1p-u pow1 sub-neg flip3-- add-cbrt-cube diff-log diff-atan add-exp-log insert-posit16 log1p-expm1-u flip-- distribute-lft-out-- difference-of-squares
Counts
1 → 30
Calls
1 calls:
Slowest
10.0ms
(- (atan (+ N 1)) (atan N))

series38.0ms

Counts
1 → 3
Calls
1 calls:
Slowest
38.0ms
(- (atan (+ N 1)) (atan N))

simplify1.0s

Counts
33 → 33

prune279.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.8b

localize20.0ms

Local error

Found 2 expressions with local error:

0.8b
(atan2 1 (fma N (+ 1 N) 1))
0.0b
(fma N (+ 1 N) 1)

rewrite1.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt expm1-log1p-u pow1 *-un-lft-identity add-cbrt-cube add-exp-log add-cube-cbrt insert-posit16 log1p-expm1-u add-log-exp
fma-udef
Counts
2 → 21
Calls
2 calls:
Slowest
1.0ms
(atan2 1 (fma N (+ 1 N) 1))
0.0ms
(fma N (+ 1 N) 1)

series32.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
28.0ms
(fma N (+ 1 N) 1)
3.0ms
(atan2 1 (fma N (+ 1 N) 1))

simplify4.2s

Counts
27 → 27

prune253.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0.7b

localize33.0ms

Local error

Found 4 expressions with local error:

11.6b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
11.6b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
0.8b
(atan2 1 (fma N (+ 1 N) 1))
0.8b
(atan2 1 (fma N (+ 1 N) 1))

rewrite12.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
pow1 *-un-lft-identity add-cube-cbrt sqrt-prod
expm1-log1p-u add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 52
Calls
4 calls:
Slowest
7.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
2.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
0.0ms
(atan2 1 (fma N (+ 1 N) 1))
0.0ms
(atan2 1 (fma N (+ 1 N) 1))

series36.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
20.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
12.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
2.0ms
(atan2 1 (fma N (+ 1 N) 1))
2.0ms
(atan2 1 (fma N (+ 1 N) 1))

simplify5.7s

Counts
64 → 64

prune551.0ms

Pruning

7 alts after pruning (5 fresh and 2 done)

Merged error: 0.7b

localize32.0ms

Local error

Found 4 expressions with local error:

11.6b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
11.6b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
11.6b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
0.8b
(atan2 1 (fma N (+ 1 N) 1))

rewrite4.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
sqrt-prod
pow1 *-un-lft-identity add-cube-cbrt
expm1-log1p-u add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 58
Calls
4 calls:
Slowest
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
0.0ms
(atan2 1 (fma N (+ 1 N) 1))

series60.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
21.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
19.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
18.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
2.0ms
(atan2 1 (fma N (+ 1 N) 1))

simplify4.8s

Counts
70 → 70

prune576.0ms

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 0.7b

regimes35.0ms

Accuracy

0% (0.0b remaining)

Error of 0.4b against oracle of 0.3b and baseline of 0.4b

bsearch1.0ms

end0.0ms

sample1.6s

Algorithm
intervals
Results
1.0s2868×body1280valid
246.0ms3992×body80valid
122.0ms656×body640valid
78.0ms323×body320valid
27.0ms161×body160valid