Details

Time bar (total: 10.9s)

sample75.0ms

Algorithm
intervals
Results
33.0ms61×body1280valid
13.0ms39×body640valid
9.0ms122×body80valid
6.0ms25×body320valid
1.0msbody160valid

simplify1.4s

Counts
1 → 1
Iterations
IterNodes
done5000
71221
6304
5131
457
332
223
118
09

prune6.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.7b

localize30.0ms

Local error

Found 2 expressions with local error:

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

rewrite121.0ms

Algorithm
rewrite-expression-head
Rules
23×*-un-lft-identity
22×add-sqr-sqrt
15×times-frac
11×add-cube-cbrt
associate-/r* add-cbrt-cube add-exp-log distribute-lft-out add-log-exp difference-of-squares
associate-/l*
pow1 difference-of-sqr-1 associate-/r/ insert-posit16
cbrt-undiv clear-num sub-neg frac-2neg flip3-+ flip3-- diff-log div-exp flip-+ div-inv flip-- distribute-lft-out--
Counts
2 → 54
Calls
2 calls:
22.0ms
(/ 2 (+ 1 (exp (* -2 x))))
97.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

series127.0ms

Counts
2 → 6
Calls
2 calls:
28.0ms
(/ 2 (+ 1 (exp (* -2 x))))
100.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

simplify1.6s

Counts
60 → 60
Iterations
IterNodes
done5167
32081
2615
1243
0107

prune255.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.0b

localize19.0ms

Local error

Found 4 expressions with local error:

0.1b
(* (pow x 5) 2/15)
0.1b
(* x (* x x))
0.1b
(* -1/3 (* x (* x x)))
16.9b
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

rewrite141.0ms

Algorithm
rewrite-expression-head
Rules
27×pow1
23×add-exp-log
20×add-cbrt-cube
15×add-sqr-sqrt
13×associate-*l*
12×prod-exp
10×cbrt-unprod
*-un-lft-identity pow-prod-down add-cube-cbrt
add-log-exp
associate-*r* pow-prod-up
unpow-prod-down insert-posit16 unswap-sqr
*-commutative
sqr-pow
pow2 pow-to-exp +-commutative sum-log flip3-+ pow-plus cube-unmult pow-exp pow-sqr flip-+
Counts
4 → 85
Calls
4 calls:
8.0ms
(* (pow x 5) 2/15)
20.0ms
(* x (* x x))
43.0ms
(* -1/3 (* x (* x x)))
68.0ms
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

series474.0ms

Counts
4 → 12
Calls
4 calls:
80.0ms
(* (pow x 5) 2/15)
67.0ms
(* x (* x x))
78.0ms
(* -1/3 (* x (* x x)))
247.0ms
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

simplify1.4s

Counts
97 → 97
Iterations
IterNodes
done5000
21232
1321
0125

prune319.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.0b

localize32.0ms

Local error

Found 2 expressions with local error:

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

rewrite90.0ms

Algorithm
rewrite-expression-head
Rules
23×*-un-lft-identity
22×add-sqr-sqrt
15×times-frac
11×add-cube-cbrt
associate-/r* add-cbrt-cube add-exp-log distribute-lft-out add-log-exp difference-of-squares
associate-/l*
pow1 difference-of-sqr-1 associate-/r/ insert-posit16
cbrt-undiv clear-num sub-neg frac-2neg flip3-+ flip3-- diff-log div-exp flip-+ div-inv flip-- distribute-lft-out--
Counts
2 → 54
Calls
2 calls:
12.0ms
(/ 2 (+ (exp (* -2 x)) 1))
77.0ms
(- (/ 2 (+ (exp (* -2 x)) 1)) 1)

series83.0ms

Counts
2 → 6
Calls
2 calls:
22.0ms
(/ 2 (+ (exp (* -2 x)) 1))
61.0ms
(- (/ 2 (+ (exp (* -2 x)) 1)) 1)

simplify1.4s

Counts
60 → 60
Iterations
IterNodes
done5136
31696
2595
1238
0104

prune260.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0.0b

regimes232.0ms

Accuracy

98.9% (0.4b remaining)

Error of 0.4b against oracle of 0.0b and baseline of 31.3b

bsearch1.0ms

simplify5.0ms

Iterations
IterNodes
done37
137
025

end0.0ms

sample2.8s

Algorithm
intervals
Results
953.0ms1233×body640valid
910.0ms1708×body1280valid
412.0ms4112×body80valid
226.0ms625×body320valid
79.0ms322×body160valid