Details

Time bar (total: 3.7s)

sample1.1s

Algorithm
intervals
sampling

Space saved by range analysis: 0%

Space saved by search: 9.082031%

Guaranteed chance to sample good point: 74.543502%

Results
11.0ms231×body80valid
3.0ms11×body640valid
3.0ms82×body80overflowed
3.0msbody1280valid
1.0msbody320valid
0.0msbody160valid

simplify4.0ms

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
0125
1195
2195

prune3.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 0.8b

Counts
2 → 1

localize8.0ms

Local error

Found 1 expressions with local error:

0.7b
(log (+ 1.0 (exp x)))

rewrite4.0ms

Algorithm
rewrite-expression-head
Rules
log-prod *-un-lft-identity
pow1 add-exp-log add-sqr-sqrt add-cube-cbrt log-div
flip3-+ rem-log-exp log-pow add-cbrt-cube flip-+ distribute-lft-out add-log-exp
Counts
1 → 15
Calls
1 calls:
4.0ms
(log (+ 1.0 (exp x)))

series11.0ms

Counts
1 → 3
Calls
1 calls:
11.0ms
(log (+ 1.0 (exp x)))

simplify76.0ms

Algorithm
egg-herbie
Counts
18 → 18
Iterations

Useful iterations: 3 (18.0ms)

IterNodesCost
0101109
123297
262296
3227395
4500195

prune31.0ms

Filtered
14 candidates to 18 candidates (-28.6%)
Pruning

2 alts after pruning (1 fresh and 1 done)

PrunedKeptTotal
New17118
Fresh000
Picked011
Done000
Total17219

Merged error: 0b

Counts
19 → 2

localize15.0ms

Local error

Found 2 expressions with local error:

0.0b
(+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2)))))
0.0b
(+ (+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2))))) (* 0.5 x))

rewrite11.0ms

Algorithm
rewrite-expression-head
Rules
add-log-exp
associate-+l+ associate-+r+ sum-log
add-sqr-sqrt add-cube-cbrt log-prod *-un-lft-identity
pow1 add-exp-log +-commutative distribute-rgt-in sub-neg distribute-lft-in flip3-+ add-cbrt-cube flip-+
Counts
2 → 31
Calls
2 calls:
4.0ms
(+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2)))))
6.0ms
(+ (+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2))))) (* 0.5 x))

series35.0ms

Counts
2 → 6
Calls
2 calls:
29.0ms
(+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2)))))
6.0ms
(+ (+ (log 2.0) (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2))))) (* 0.5 x))

simplify105.0ms

Algorithm
egg-herbie
Counts
37 → 37
Iterations

Useful iterations: 2 (22.0ms)

IterNodesCost
0199382
1734358
23732351
35001351

prune79.0ms

Filtered
28 candidates to 37 candidates (-32.1%)
Pruning

2 alts after pruning (0 fresh and 2 done)

PrunedKeptTotal
New37037
Fresh000
Picked011
Done011
Total37239

Merged error: 0b

Counts
39 → 2

regimes120.0ms

Accuracy

0% (0.3b remaining)

Error of 0.5b against oracle of 0.3b and baseline of 0.5b

bsearch0.0ms

simplify1.0ms

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
0105
1105

end0.0ms

sample2.1s

Algorithm
intervals
sampling

Space saved by range analysis: 0%

Space saved by search: 9.082031%

Guaranteed chance to sample good point: 74.543502%

Results
356.0ms7313×body80valid
113.0ms2572×body80overflowed
83.0ms145×body1280valid
77.0ms246×body640valid
37.0ms189×body320valid
13.0ms107×body160valid
2.0ms29×body80invalid

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