Details

Time bar (total: 16.6s)

sample166.0ms

Algorithm
intervals
Results
98.0ms147×body1280valid
27.0ms20×body2560valid
18.0ms55×body640valid
4.0ms17×body320valid
1.0ms10×body160valid
1.0msbody80valid

simplify7.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune17.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 37.3b

localize24.0ms

Local error

Found 2 expressions with local error:

0.9b
(- (cos (+ x eps)) (cos x))
2.4b
(cos (+ x eps))

rewrite69.0ms

Algorithm
rewrite-expression-head
Rules
11×add-sqr-sqrt *-un-lft-identity
prod-diff add-cube-cbrt
add-log-exp
fma-neg
expm1-log1p-u pow1 cos-sum add-cbrt-cube add-exp-log log1p-expm1-u
associate--l- sub-neg flip3-- diff-log diff-cos flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 40
Calls
2 calls:
52.0ms
(- (cos (+ x eps)) (cos x))
15.0ms
(cos (+ x eps))

series87.0ms

Counts
2 → 6
Calls
2 calls:
57.0ms
(- (cos (+ x eps)) (cos x))
30.0ms
(cos (+ x eps))

simplify798.0ms

Counts
46 → 46
Iterations
IterNodes
done5000
2723
1201
091

prune314.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 0.2b

localize31.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ x (+ x eps))
0.2b
(/ (+ x (+ x eps)) 2)
0.3b
(* (sin (/ (+ eps 0) 2)) (sin (/ (+ x (+ x eps)) 2)))
2.4b
(sin (/ (+ x (+ x eps)) 2))

rewrite227.0ms

Algorithm
rewrite-expression-head
Rules
42×*-un-lft-identity
19×add-sqr-sqrt
17×add-cube-cbrt
15×times-frac distribute-lft-out
add-log-exp
add-cbrt-cube add-exp-log
pow1
associate-/l*
expm1-log1p-u log1p-expm1-u
associate-/r* sum-log fma-def associate-*r* associate-*l*
flip3-+ flip-+ associate-/l/
cbrt-undiv +-commutative associate-+r+ clear-num frac-2neg div-exp pow-prod-down prod-exp *-commutative cbrt-unprod div-inv sin-mult unswap-sqr
Counts
4 → 89
Calls
4 calls:
17.0ms
(+ x (+ x eps))
71.0ms
(/ (+ x (+ x eps)) 2)
92.0ms
(* (sin (/ (+ eps 0) 2)) (sin (/ (+ x (+ x eps)) 2)))
44.0ms
(sin (/ (+ x (+ x eps)) 2))

series220.0ms

Counts
4 → 12
Calls
4 calls:
37.0ms
(+ x (+ x eps))
57.0ms
(/ (+ x (+ x eps)) 2)
84.0ms
(* (sin (/ (+ eps 0) 2)) (sin (/ (+ x (+ x eps)) 2)))
42.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify898.0ms

Counts
101 → 101
Iterations
IterNodes
done5001
21294
1323
0142

prune745.0ms

Pruning

15 alts after pruning (15 fresh and 0 done)

Merged error: 0.2b

localize41.0ms

Local error

Found 4 expressions with local error:

0.2b
(expm1 (sin (/ (fma 2 x eps) 2)))
0.3b
(log1p (expm1 (sin (/ (fma 2 x eps) 2))))
0.3b
(* (sin (/ (+ eps 0) 2)) (log1p (expm1 (sin (/ (fma 2 x eps) 2)))))
2.5b
(sin (/ (fma 2 x eps) 2))

rewrite33.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
pow1 *-un-lft-identity add-cbrt-cube add-exp-log add-cube-cbrt
log1p-expm1-u
expm1-log1p-u add-log-exp
associate-*r* associate-*l*
log1p-udef expm1-log1p pow-prod-down prod-exp log1p-expm1 *-commutative cbrt-unprod expm1-udef unswap-sqr
Counts
4 → 51
Calls
4 calls:
0.0ms
(expm1 (sin (/ (fma 2 x eps) 2)))
0.0ms
(log1p (expm1 (sin (/ (fma 2 x eps) 2))))
26.0ms
(* (sin (/ (+ eps 0) 2)) (log1p (expm1 (sin (/ (fma 2 x eps) 2)))))
6.0ms
(sin (/ (fma 2 x eps) 2))

series442.0ms

Counts
4 → 12
Calls
4 calls:
78.0ms
(expm1 (sin (/ (fma 2 x eps) 2)))
104.0ms
(log1p (expm1 (sin (/ (fma 2 x eps) 2))))
207.0ms
(* (sin (/ (+ eps 0) 2)) (log1p (expm1 (sin (/ (fma 2 x eps) 2)))))
53.0ms
(sin (/ (fma 2 x eps) 2))

simplify2.7s

Counts
63 → 63
Iterations
IterNodes
done5000
33231
2610
1186
091

prune549.0ms

Pruning

14 alts after pruning (13 fresh and 1 done)

Merged error: 0.2b

localize77.0ms

Local error

Found 4 expressions with local error:

0.6b
(cbrt (sin (/ (fma 2 x eps) 2)))
2.5b
(sin (/ (fma 2 x eps) 2))
2.5b
(sin (/ (fma 2 x eps) 2))
2.5b
(sin (/ (fma 2 x eps) 2))

rewrite22.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-cube-cbrt
expm1-log1p-u pow1 add-cbrt-cube add-exp-log log1p-expm1-u add-log-exp
cbrt-prod
pow1/3
Counts
4 → 40
Calls
4 calls:
3.0ms
(cbrt (sin (/ (fma 2 x eps) 2)))
6.0ms
(sin (/ (fma 2 x eps) 2))
6.0ms
(sin (/ (fma 2 x eps) 2))
6.0ms
(sin (/ (fma 2 x eps) 2))

series318.0ms

Counts
4 → 12
Calls
4 calls:
159.0ms
(cbrt (sin (/ (fma 2 x eps) 2)))
41.0ms
(sin (/ (fma 2 x eps) 2))
62.0ms
(sin (/ (fma 2 x eps) 2))
56.0ms
(sin (/ (fma 2 x eps) 2))

simplify1.2s

Counts
52 → 52
Iterations
IterNodes
done5001
31055
2294
1115
058

prune460.0ms

Pruning

14 alts after pruning (12 fresh and 2 done)

Merged error: 0.2b

regimes429.0ms

Accuracy

96.9% (0.5b remaining)

Error of 0.9b against oracle of 0.4b and baseline of 15.3b

bsearch193.0ms

Steps
ItersRangePoint
10
7.42116589675916e-09
160.65039477392645
0.00014597753908590782
9
-3322970397.4786234
-6367.3348759504115
-6443.306290177518

simplify6.0ms

Iterations
IterNodes
done37
137
029

end0.0ms

sample6.6s

Algorithm
intervals
Results
4.0s4435×body1280valid
1.0s637×body2560valid
865.0ms1874×body640valid
284.0ms665×body320valid
123.0ms307×body160valid
8.0ms82×body80valid