Details

Time bar (total: 5.8s)

sample34.0ms

Algorithm
intervals
Results
10.0ms57×body1280valid
7.0ms61×body640valid
4.0ms185×body80valid
2.0ms29×body320valid
1.0ms16×body160valid

simplify5.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
056
1106
2136
3156
done156

prune6.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 39.1b

Counts
2 → 1

localize4.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- (exp x) 1.0) x)
5.7b
(- (exp x) 1.0)

rewrite13.0ms

Algorithm
rewrite-expression-head
Rules
22×add-sqr-sqrt *-un-lft-identity
15×times-frac
12×add-cube-cbrt
associate-/l* distribute-lft-out-- difference-of-squares
add-exp-log add-cbrt-cube add-log-exp
associate-/r*
pow1 flip3-- flip-- associate-/l/
cbrt-undiv sub-neg frac-2neg diff-log div-sub div-exp clear-num div-inv
Counts
2 → 52
Calls
2 calls:
7.0ms
(/ (- (exp x) 1.0) x)
4.0ms
(- (exp x) 1.0)

series7.0ms

Counts
2 → 6
Calls
2 calls:
5.0ms
(/ (- (exp x) 1.0) x)
3.0ms
(- (exp x) 1.0)

simplify1.3s

Counts
58 → 58
Iterations

Useful iterations: 4 (682.0ms)

IterNodesCost
099596
1221572
2558544
31434538
44272536
done5001536

prune86.0ms

Filtered
42 candidates to 58 candidates (-38.1%)
Pruning

3 alts after pruning (3 fresh and 0 done)

PrunedKeptTotal
New55358
Fresh000
Picked101
Done000
Total56359

Merged error: 0.1b

Counts
59 → 3

localize6.0ms

Local error

Found 2 expressions with local error:

0.1b
(* x (+ (* x 1/6) 1/2))
0.3b
(* x 1/6)

rewrite12.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
pow1 add-exp-log add-cube-cbrt *-un-lft-identity associate-*r* associate-*l* add-cbrt-cube
associate-*r/ pow-prod-down prod-exp *-commutative cbrt-unprod add-log-exp unswap-sqr
distribute-rgt-in distribute-lft-in flip3-+ flip-+
Counts
2 → 40
Calls
2 calls:
7.0ms
(* x (+ (* x 1/6) 1/2))
4.0ms
(* x 1/6)

series8.0ms

Counts
2 → 6
Calls
2 calls:
6.0ms
(* x (+ (* x 1/6) 1/2))
2.0ms
(* x 1/6)

simplify1.4s

Counts
46 → 46
Iterations

Useful iterations: 4 (603.0ms)

IterNodesCost
070356
1185338
2512302
31346300
43292298
done5000298

prune55.0ms

Filtered
31 candidates to 46 candidates (-48.4%)
Pruning

3 alts after pruning (2 fresh and 1 done)

PrunedKeptTotal
New46046
Fresh022
Picked011
Done000
Total46349

Merged error: 0.1b

Counts
49 → 3

localize6.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (exp x) x)
5.1b
(- (/ (exp x) x) (/ 1.0 x))

rewrite24.0ms

Algorithm
rewrite-expression-head
Rules
24×add-sqr-sqrt
20×*-un-lft-identity
19×times-frac
12×add-cube-cbrt
add-cbrt-cube distribute-lft-out-- add-log-exp difference-of-squares
add-exp-log associate-/r* div-inv associate-/l*
pow1
cbrt-undiv sub-neg flip3-- distribute-rgt-out-- frac-2neg diff-log div-exp clear-num frac-sub flip-- sub-div
Counts
2 → 50
Calls
2 calls:
8.0ms
(/ (exp x) x)
14.0ms
(- (/ (exp x) x) (/ 1.0 x))

series9.0ms

Counts
2 → 6
Calls
2 calls:
3.0ms
(/ (exp x) x)
5.0ms
(- (/ (exp x) x) (/ 1.0 x))

simplify877.0ms

Counts
56 → 56
Iterations

Useful iterations: 4 (357.0ms)

IterNodesCost
0105581
1218558
2554525
31215505
43590502
done5000502

prune63.0ms

Filtered
44 candidates to 56 candidates (-27.3%)
Pruning

4 alts after pruning (3 fresh and 1 done)

PrunedKeptTotal
New54256
Fresh011
Picked101
Done011
Total55459

Merged error: 0.1b

Counts
59 → 4

localize7.0ms

Local error

Found 2 expressions with local error:

0.0b
(* (exp x) (/ 1 x))
5.1b
(- (* (exp x) (/ 1 x)) (/ 1.0 x))

rewrite19.0ms

Algorithm
rewrite-expression-head
Rules
17×add-sqr-sqrt
13×associate-*r*
11×*-un-lft-identity times-frac
10×add-cube-cbrt
add-exp-log add-cbrt-cube
pow1 prod-exp add-log-exp
associate-*r/ associate-*l* un-div-inv unswap-sqr
div-exp frac-sub cbrt-unprod div-inv sub-div
cbrt-undiv sub-neg rec-exp flip3-- distribute-rgt-out-- diff-log 1-exp pow-prod-down *-commutative flip--
Counts
2 → 53
Calls
2 calls:
9.0ms
(* (exp x) (/ 1 x))
9.0ms
(- (* (exp x) (/ 1 x)) (/ 1.0 x))

series9.0ms

Counts
2 → 6
Calls
2 calls:
3.0ms
(* (exp x) (/ 1 x))
6.0ms
(- (* (exp x) (/ 1 x)) (/ 1.0 x))

simplify691.0ms

Counts
59 → 59
Iterations

Useful iterations: done (690.0ms)

IterNodesCost
0117612
1292473
2884399
32511395
done5000394

prune53.0ms

Filtered
40 candidates to 59 candidates (-47.5%)
Pruning

4 alts after pruning (2 fresh and 2 done)

PrunedKeptTotal
New58159
Fresh112
Picked011
Done011
Total59463

Merged error: 0.1b

Counts
63 → 4

regimes37.0ms

Accuracy

98.6% (0.3b remaining)

Error of 0.4b against oracle of 0.1b and baseline of 21.1b

bsearch13.0ms

Steps
ItersRangePoint
9
-0.0001616040529746431
-1.1951251334293225e-11
-9.525718599919936e-05

simplify2.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01723
12423
done2423

end0.0ms

sample1.0s

Algorithm
intervals
Results
399.0ms2294×body1280valid
189.0ms1658×body640valid
124.0ms5384×body80valid
66.0ms810×body320valid
26.0ms431×body160valid

Profiling

Loading profile data...