Details

Time bar (total: 17.8s)

sample78.0ms

Algorithm
intervals
Results
34.0ms61×body1280valid
14.0ms42×body640valid
9.0ms121×body80valid
5.0ms22×body320valid
1.0ms10×body160valid

simplify2.9s

Counts
1 → 1
Iterations
IterNodes
done5000
73471
6531
5151
461
333
224
118
09

prune3.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.8b

localize13.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ 1 (exp (* -2 x)))
0.0b
(/ 2 (+ 1 (exp (* -2 x))))
2.7b
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

rewrite120.0ms

Algorithm
rewrite-expression-head
Rules
101×*-un-lft-identity
74×add-sqr-sqrt
63×times-frac add-cube-cbrt
54×prod-diff
18×fma-neg
17×distribute-lft-out
10×associate-/r/
add-exp-log
add-log-exp
flip3-+ flip-+
add-cbrt-cube div-inv
associate-/r* difference-of-squares
expm1-log1p-u pow1 fma-def insert-posit16 log1p-expm1-u associate-/l*
expm1-def difference-of-sqr-1 div-exp
cbrt-undiv +-commutative clear-num sum-log sub-neg frac-2neg flip3-- diff-log flip-- distribute-lft-out--
Counts
3 → 150
Calls
3 calls:
13.0ms
(+ 1 (exp (* -2 x)))
17.0ms
(/ 2 (+ 1 (exp (* -2 x))))
86.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

series134.0ms

Counts
3 → 9
Calls
3 calls:
18.0ms
(+ 1 (exp (* -2 x)))
44.0ms
(/ 2 (+ 1 (exp (* -2 x))))
72.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

simplify1.7s

Counts
159 → 159
Iterations
IterNodes
done5001
21439
1443
0183

prune495.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0b

localize21.0ms

Local error

Found 3 expressions with local error:

0.0b
(fma (pow x 5) 2/15 x)
0.1b
(* (* x x) x)
18.4b
(fma (* (* x x) x) -1/3 (fma (pow x 5) 2/15 x))

rewrite30.0ms

Algorithm
rewrite-expression-head
Rules
22×pow1
add-cbrt-cube add-exp-log
pow-plus pow-prod-up
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
expm1-log1p-u associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16 log1p-expm1-u add-log-exp
pow2 pow-sqr fma-udef
associate-*l* pow3 *-commutative unswap-sqr
Counts
3 → 53
Calls
3 calls:
1.0ms
(fma (pow x 5) 2/15 x)
28.0ms
(* (* x x) x)
0.0ms
(fma (* (* x x) x) -1/3 (fma (pow x 5) 2/15 x))

series315.0ms

Counts
3 → 9
Calls
3 calls:
195.0ms
(fma (pow x 5) 2/15 x)
53.0ms
(* (* x x) x)
68.0ms
(fma (* (* x x) x) -1/3 (fma (pow x 5) 2/15 x))

simplify1.3s

Counts
62 → 62
Iterations
IterNodes
done5001
2880
1152
070

prune196.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0b

localize34.0ms

Local error

Found 4 expressions with local error:

0.0b
(sqrt (+ 1 (exp (* -2 x))))
0.0b
(/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x)))))
0.5b
(/ 2 (sqrt (+ 1 (exp (* -2 x)))))
2.7b
(- (/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x))))) 1)

rewrite322.0ms

Algorithm
rewrite-expression-head
Rules
1752×times-frac
1504×*-un-lft-identity
1059×add-sqr-sqrt
1011×sqrt-prod
996×add-cube-cbrt
585×prod-diff
249×distribute-lft-out
195×fma-neg
86×sqrt-div
84×associate-/r/
43×flip3-+ flip-+
42×div-inv
30×associate-/l*
17×add-exp-log
14×associate-/r* difference-of-squares
11×add-cbrt-cube
difference-of-sqr-1 div-exp
add-log-exp
pow1
expm1-log1p-u cbrt-undiv insert-posit16 log1p-expm1-u
expm1-def
clear-num frac-2neg hypot-def
rem-sqrt-square sub-neg sqrt-pow1 flip3-- pow1/2 diff-log hypot-1-def flip-- distribute-lft-out-- associate-/l/
Counts
4 → 1133
Calls
4 calls:
19.0ms
(sqrt (+ 1 (exp (* -2 x))))
53.0ms
(/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x)))))
15.0ms
(/ 2 (sqrt (+ 1 (exp (* -2 x)))))
189.0ms
(- (/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x))))) 1)

series243.0ms

Counts
4 → 12
Calls
4 calls:
38.0ms
(sqrt (+ 1 (exp (* -2 x))))
25.0ms
(/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x)))))
76.0ms
(/ 2 (sqrt (+ 1 (exp (* -2 x)))))
104.0ms
(- (/ (/ 2 (sqrt (+ 1 (exp (* -2 x))))) (sqrt (+ 1 (exp (* -2 x))))) 1)

simplify2.2s

Counts
1145 → 1145
Iterations
IterNodes
done5000
11683
0711

prune2.6s

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0b

localize19.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ 1 (exp (* -2 x)))
0.0b
(/ (sqrt 2) (+ 1 (exp (* -2 x))))
32.7b
(fma (/ (sqrt 2) 1) (/ (sqrt 2) (+ 1 (exp (* -2 x)))) -1)

rewrite23.0ms

Algorithm
rewrite-expression-head
Rules
37×*-un-lft-identity
24×times-frac
21×add-sqr-sqrt add-cube-cbrt
15×sqrt-prod
distribute-lft-out
associate-/l*
add-cbrt-cube add-exp-log add-log-exp
associate-/r*
expm1-log1p-u pow1 fma-def insert-posit16 log1p-expm1-u
flip3-+ associate-/r/ flip-+
cbrt-undiv +-commutative clear-num sum-log frac-2neg div-exp fma-udef div-inv
Counts
3 → 80
Calls
3 calls:
9.0ms
(+ 1 (exp (* -2 x)))
11.0ms
(/ (sqrt 2) (+ 1 (exp (* -2 x))))
0.0ms
(fma (/ (sqrt 2) 1) (/ (sqrt 2) (+ 1 (exp (* -2 x)))) -1)

series271.0ms

Counts
3 → 9
Calls
3 calls:
21.0ms
(+ 1 (exp (* -2 x)))
81.0ms
(/ (sqrt 2) (+ 1 (exp (* -2 x))))
169.0ms
(fma (/ (sqrt 2) 1) (/ (sqrt 2) (+ 1 (exp (* -2 x)))) -1)

simplify1.1s

Counts
89 → 89
Iterations
IterNodes
done5002
21175
1303
0133

prune465.0ms

Pruning

3 alts after pruning (0 fresh and 3 done)

Merged error: 0b

regimes403.0ms

Accuracy

99.5% (0.1b remaining)

Error of 0.2b against oracle of 0.0b and baseline of 30.9b

bsearch2.0ms

simplify5.0ms

Iterations
IterNodes
done35
135
030

end0.0ms

sample2.8s

Algorithm
intervals
Results
1.3s1707×body1280valid
527.0ms1307×body640valid
436.0ms4052×body80valid
287.0ms617×body320valid
54.0ms317×body160valid