Details

Time bar (total: 17.4s)

sample79.0ms

Algorithm
intervals
Results
25.0ms51×body1280valid
18.0ms47×body640valid
15.0ms122×body80valid
7.0ms26×body320valid
1.0ms10×body160valid

simplify2.7s

Counts
1 → 1
Iterations
IterNodes
done5001
83027
7794
6244
5100
450
329
222
118
09

prune4.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.9b

localize21.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ 2 (+ 1 (exp (* -2 x))))
4.4b
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

rewrite60.0ms

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 (+ 1 (exp (* -2 x))))
47.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

series92.0ms

Counts
2 → 6
Calls
2 calls:
22.0ms
(/ 2 (+ 1 (exp (* -2 x))))
70.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

simplify1.5s

Counts
60 → 60
Iterations
IterNodes
done5018
31817
2579
1243
0107

prune329.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.0b

localize34.0ms

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)))
17.2b
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

rewrite156.0ms

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:
17.0ms
(* (pow x 5) 2/15)
30.0ms
(* x (* x x))
45.0ms
(* -1/3 (* x (* x x)))
62.0ms
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

series505.0ms

Counts
4 → 12
Calls
4 calls:
85.0ms
(* (pow x 5) 2/15)
64.0ms
(* x (* x x))
73.0ms
(* -1/3 (* x (* x x)))
283.0ms
(+ (* -1/3 (* x (* x x))) (* (pow x 5) 2/15))

simplify1.6s

Counts
97 → 97
Iterations
IterNodes
done5000
21144
1321
0125

prune445.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize36.0ms

Local error

Found 4 expressions with local error:

0.1b
(* x (* (* x x) 1/3))
0.3b
(* (* x x) 1/3)
0.7b
(log (exp (- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))))
17.2b
(- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))

rewrite97.0ms

Algorithm
rewrite-expression-head
Rules
19×pow1
18×add-cbrt-cube add-exp-log
add-sqr-sqrt pow-prod-down prod-exp cbrt-unprod
*-un-lft-identity add-cube-cbrt
add-log-exp
log-prod
associate-*r* associate-*l* log-pow insert-posit16
exp-prod
sub-neg exp-sum *-commutative
log-div flip3-- exp-diff diff-log rem-log-exp flip-- unswap-sqr
Counts
4 → 74
Calls
4 calls:
45.0ms
(* x (* (* x x) 1/3))
24.0ms
(* (* x x) 1/3)
12.0ms
(log (exp (- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))))
15.0ms
(- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))

series876.0ms

Counts
4 → 12
Calls
4 calls:
47.0ms
(* x (* (* x x) 1/3))
39.0ms
(* (* x x) 1/3)
191.0ms
(log (exp (- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))))
599.0ms
(- (* 2/15 (pow x 5)) (* x (* (* x x) 1/3)))

simplify3.1s

Counts
86 → 86
Iterations
IterNodes
done5000
33737
2866
1278
0113

prune440.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

localize38.0ms

Local error

Found 3 expressions with local error:

0.0b
(/ 2 (+ 1 (exp (* x -2))))
4.4b
(log (exp (- (/ 2 (+ 1 (exp (* x -2)))) 1)))
4.4b
(- (/ 2 (+ 1 (exp (* x -2)))) 1)

rewrite250.0ms

Algorithm
rewrite-expression-head
Rules
36×add-sqr-sqrt
30×*-un-lft-identity
18×times-frac
14×add-cube-cbrt
11×log-pow
10×exp-prod
difference-of-squares
log-prod add-cbrt-cube add-exp-log add-log-exp
pow1 associate-/r* difference-of-sqr-1 distribute-lft-out
insert-posit16 associate-/l*
sub-neg exp-sum associate-/r/ distribute-lft-out--
cbrt-undiv log-div clear-num frac-2neg flip3-+ flip3-- exp-diff diff-log div-exp rem-log-exp flip-+ div-inv flip--
Counts
3 → 80
Calls
3 calls:
16.0ms
(/ 2 (+ 1 (exp (* x -2))))
157.0ms
(log (exp (- (/ 2 (+ 1 (exp (* x -2)))) 1)))
75.0ms
(- (/ 2 (+ 1 (exp (* x -2)))) 1)

series183.0ms

Counts
3 → 9
Calls
3 calls:
33.0ms
(/ 2 (+ 1 (exp (* x -2))))
80.0ms
(log (exp (- (/ 2 (+ 1 (exp (* x -2)))) 1)))
70.0ms
(- (/ 2 (+ 1 (exp (* x -2)))) 1)

simplify2.0s

Counts
89 → 89
Iterations
IterNodes
done5819
32369
2748
1300
0141

prune333.0ms

Pruning

3 alts after pruning (0 fresh and 3 done)

Merged error: 0.0b

regimes125.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 31.8b

bsearch141.0ms

Steps
ItersRangePoint
10
0.006928851504795399
801012902.7811656
0.006998885945432241
7
-0.3435485504518341
-0.0018335887134067947
-0.00838956395365049

simplify11.0ms

Iterations
IterNodes
done39
139
027

end0.0ms

sample2.3s

Algorithm
intervals
Results
835.0ms1674×body1280valid
484.0ms634×body320valid
449.0ms1231×body640valid
331.0ms4175×body80valid
40.0ms286×body160valid