Details

Time bar (total: 18.8s)

sample53.0ms

Algorithm
intervals
Results
21.0ms54×body1280valid
8.0ms33×body640valid
7.0ms133×body80valid
5.0ms27×body320valid
1.0msbody160valid

simplify3.4s

Counts
1 → 1
Iterations
IterNodes
done5002
82490
7682
6240
5101
451
330
222
118
09

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 28.9b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ 2 (+ 1 (exp (* -2 x))))
2.4b
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

rewrite161.0ms

Algorithm
rewrite-expression-head
Rules
97×*-un-lft-identity
72×add-sqr-sqrt
63×times-frac
61×add-cube-cbrt
54×prod-diff
18×fma-neg
16×distribute-lft-out
10×associate-/r/
add-exp-log
flip3-+ flip-+ div-inv
associate-/r* add-cbrt-cube add-log-exp difference-of-squares
associate-/l*
expm1-log1p-u pow1 expm1-def difference-of-sqr-1 div-exp insert-posit16 log1p-expm1-u
cbrt-undiv clear-num sub-neg frac-2neg flip3-- diff-log flip-- distribute-lft-out--
Counts
2 → 132
Calls
2 calls:
14.0ms
(/ 2 (+ 1 (exp (* -2 x))))
142.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

series106.0ms

Counts
2 → 6
Calls
2 calls:
29.0ms
(/ 2 (+ 1 (exp (* -2 x))))
77.0ms
(- (/ 2 (+ 1 (exp (* -2 x)))) 1)

simplify2.9s

Counts
138 → 138
Iterations
IterNodes
done5001
32451
2948
1397
0172

prune473.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ 2 (+ (exp (* x -2)) 1))
2.4b
(- (/ 2 (+ (exp (* x -2)) 1)) 1)

rewrite181.0ms

Algorithm
rewrite-expression-head
Rules
97×*-un-lft-identity
72×add-sqr-sqrt
63×times-frac
61×add-cube-cbrt
54×prod-diff
18×fma-neg
16×distribute-lft-out
10×associate-/r/
add-exp-log
flip3-+ flip-+ div-inv
associate-/r* add-cbrt-cube add-log-exp difference-of-squares
associate-/l*
expm1-log1p-u pow1 expm1-def difference-of-sqr-1 div-exp insert-posit16 log1p-expm1-u
cbrt-undiv clear-num sub-neg frac-2neg flip3-- diff-log flip-- distribute-lft-out--
Counts
2 → 132
Calls
2 calls:
16.0ms
(/ 2 (+ (exp (* x -2)) 1))
159.0ms
(- (/ 2 (+ (exp (* x -2)) 1)) 1)

series98.0ms

Counts
2 → 6
Calls
2 calls:
21.0ms
(/ 2 (+ (exp (* x -2)) 1))
77.0ms
(- (/ 2 (+ (exp (* x -2)) 1)) 1)

simplify3.3s

Counts
138 → 138
Iterations
IterNodes
done5001
32584
2980
1402
0174

prune381.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0b

localize35.0ms

Local error

Found 3 expressions with local error:

0.0b
(fma (pow x 5) 2/15 x)
0.1b
(* (* x x) x)
18.5b
(fma -1/3 (* (* x x) x) (fma (pow x 5) 2/15 x))

rewrite38.0ms

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:
0.0ms
(fma (pow x 5) 2/15 x)
35.0ms
(* (* x x) x)
1.0ms
(fma -1/3 (* (* x x) x) (fma (pow x 5) 2/15 x))

series321.0ms

Counts
3 → 9
Calls
3 calls:
199.0ms
(fma (pow x 5) 2/15 x)
37.0ms
(* (* x x) x)
84.0ms
(fma -1/3 (* (* x x) x) (fma (pow x 5) 2/15 x))

simplify1.6s

Counts
62 → 62
Iterations
IterNodes
done5006
31700
2388
1136
070

prune219.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0b

localize21.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ 2 (expm1 (* x -4)))
0.3b
(* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1))
1.6b
(- (* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1)) 1)
2.7b
(- (exp (* x -2)) 1)

rewrite119.0ms

Algorithm
rewrite-expression-head
Rules
65×add-sqr-sqrt
58×*-un-lft-identity
52×add-cube-cbrt
48×prod-diff
22×distribute-rgt-in distribute-lft-in associate--l+
19×times-frac
17×add-exp-log
13×associate-*l*
11×add-cbrt-cube
add-log-exp
associate-*r*
pow1 sub-neg
expm1-log1p-u expm1-def flip3-- fma-neg prod-exp insert-posit16 log1p-expm1-u flip-- difference-of-squares
associate-/r* div-exp associate-/l*
frac-times cbrt-undiv diff-log difference-of-sqr-1 associate-*r/ cbrt-unprod div-inv distribute-lft-out-- unswap-sqr
clear-num frac-2neg pow-prod-down associate-*l/ *-commutative
Counts
4 → 171
Calls
4 calls:
4.0ms
(/ 2 (expm1 (* x -4)))
57.0ms
(* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1))
38.0ms
(- (* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1)) 1)
14.0ms
(- (exp (* x -2)) 1)

series398.0ms

Counts
4 → 12
Calls
4 calls:
29.0ms
(/ 2 (expm1 (* x -4)))
92.0ms
(* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1))
257.0ms
(- (* (/ 2 (expm1 (* x -4))) (- (exp (* x -2)) 1)) 1)
18.0ms
(- (exp (* x -2)) 1)

simplify1.9s

Counts
183 → 183
Iterations
IterNodes
done5001
21921
1691
0252

prune852.0ms

Pruning

3 alts after pruning (0 fresh and 3 done)

Merged error: 0b

regimes132.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 29.2b

bsearch129.0ms

Steps
ItersRangePoint
10
1.7877411926250683e-07
38910778292.312386
0.011811720304489515
9
-1.1375194732999505
-6.231393320517686e-07
-0.007801985501095653

simplify8.0ms

Iterations
IterNodes
done37
137
030

end0.0ms

sample2.0s

Algorithm
intervals
Results
706.0ms1718×body1280valid
593.0ms4107×body80valid
403.0ms1267×body640valid
100.0ms586×body320valid
35.0ms322×body160valid