Details

Time bar (total: 32.1s)

sample412.0ms

Algorithm
intervals
Results
132.0ms87×body2560valid
92.0ms96×body1280valid
89.0ms60×body10240exit
44.0ms317×pre80true
19.0ms37×body640valid
4.0ms12×body320valid
2.0ms21×body80valid
1.0msbody160valid

simplify2.0s

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01724
14024
210124
324524
469224
5330124
done500124

prune8.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 58.7b

localize22.0ms

Local error

Found 4 expressions with local error:

0.3b
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
3.3b
(- (exp (* a eps)) 1.0)
4.4b
(- (exp (* b eps)) 1.0)
6.5b
(- (exp (* (+ a b) eps)) 1.0)

rewrite129.0ms

Algorithm
rewrite-expression-head
Rules
16×add-exp-log add-cbrt-cube
10×add-sqr-sqrt flip3-- *-un-lft-identity flip-- add-log-exp
associate-/r/
pow1 cbrt-undiv frac-times add-cube-cbrt associate-*r/ div-exp prod-exp cbrt-unprod
sub-neg diff-log distribute-lft-out-- difference-of-squares
associate-*l/ associate-/l/
frac-2neg times-frac clear-num associate-/r* div-inv associate-/l*
Counts
4 → 73
Calls
4 calls:
70.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
17.0ms
(- (exp (* a eps)) 1.0)
15.0ms
(- (exp (* b eps)) 1.0)
20.0ms
(- (exp (* (+ a b) eps)) 1.0)

series483.0ms

Counts
4 → 12
Calls
4 calls:
312.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
60.0ms
(- (exp (* a eps)) 1.0)
41.0ms
(- (exp (* b eps)) 1.0)
70.0ms
(- (exp (* (+ a b) eps)) 1.0)

simplify1.5s

Counts
85 → 85
Iterations

Useful iterations: 2 (399.0ms)

IterNodesCost
01741783
14771741
219961427
done50011427

prune490.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.0b

localize11.0ms

Local error

Found 1 expressions with local error:

0.0b
(+ (/ 1 b) (/ 1 a))

rewrite30.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
distribute-lft-out
times-frac
div-inv
add-sqr-sqrt add-cube-cbrt add-log-exp
pow1 add-exp-log +-commutative flip3-+ frac-add sum-log add-cbrt-cube flip-+
Counts
1 → 19
Calls
1 calls:
29.0ms
(+ (/ 1 b) (/ 1 a))

series18.0ms

Counts
1 → 3
Calls
1 calls:
18.0ms
(+ (/ 1 b) (/ 1 a))

simplify3.7s

Counts
22 → 22
Iterations

Useful iterations: 3 (179.0ms)

IterNodesCost
040229
1102216
2233196
3459194
41153194
52581194
done5000194

prune52.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0b

localize12.0ms

Local error

Found 4 expressions with local error:

0.5b
(* (cbrt (+ (/ 1 b) (/ 1 a))) (cbrt (+ (/ 1 b) (/ 1 a))))
0.5b
(cbrt (+ (/ 1 b) (/ 1 a)))
0.5b
(cbrt (+ (/ 1 b) (/ 1 a)))
0.5b
(cbrt (+ (/ 1 b) (/ 1 a)))

rewrite366.0ms

Algorithm
rewrite-expression-head
Rules
139×*-un-lft-identity
114×cbrt-prod
81×distribute-lft-out
60×div-inv
42×times-frac
37×add-sqr-sqrt
33×cbrt-div swap-sqr
29×add-cube-cbrt
13×associate-*r* associate-*l*
11×pow1 flip3-+ frac-add flip-+
frac-times pow1/3
add-exp-log
add-cbrt-cube add-log-exp unswap-sqr
associate-*r/ associate-*l/
pow-prod-down pow-sqr pow-prod-up
pow2 pow-plus prod-exp *-commutative cbrt-unprod
Counts
4 → 159
Calls
4 calls:
267.0ms
(* (cbrt (+ (/ 1 b) (/ 1 a))) (cbrt (+ (/ 1 b) (/ 1 a))))
40.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))
18.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))
17.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))

series458.0ms

Counts
4 → 12
Calls
4 calls:
164.0ms
(* (cbrt (+ (/ 1 b) (/ 1 a))) (cbrt (+ (/ 1 b) (/ 1 a))))
99.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))
96.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))
98.0ms
(cbrt (+ (/ 1 b) (/ 1 a)))

simplify1.9s

Counts
171 → 171
Iterations

Useful iterations: done (1.9s)

IterNodesCost
01783472
13903024
29452832
326212461
done50002431

prune499.0ms

Pruning

4 alts after pruning (1 fresh and 3 done)

Merged error: 0b

localize5.0ms

Local error

Found 1 expressions with local error:

11.8b
(/ (+ a b) (* a b))

rewrite33.0ms

Algorithm
rewrite-expression-head
Rules
*-un-lft-identity
add-exp-log add-cbrt-cube
times-frac associate-/l*
add-sqr-sqrt add-cube-cbrt
cbrt-undiv div-exp associate-/l/ distribute-lft-out
pow1 frac-2neg flip3-+ prod-exp clear-num associate-/r* cbrt-unprod flip-+ div-inv add-log-exp
Counts
1 → 25
Calls
1 calls:
32.0ms
(/ (+ a b) (* a b))

series58.0ms

Counts
1 → 3
Calls
1 calls:
58.0ms
(/ (+ a b) (* a b))

simplify4.5s

Counts
28 → 28
Iterations

Useful iterations: 2 (102.0ms)

IterNodesCost
055288
1143283
2484241
31737241
done5001241

prune67.0ms

Pruning

4 alts after pruning (0 fresh and 4 done)

Merged error: 0b

regimes136.0ms

Accuracy

77.5% (0.7b remaining)

Error of 0.8b against oracle of 0.1b and baseline of 3.4b

bsearch4.0ms

simplify9.0ms

Iterations

Useful iterations: 1 (5.0ms)

IterNodesCost
02792
13986
done3986

end0.0ms

sample15.1s

Algorithm
intervals
Results
4.8s2577×body2560valid
4.3s3446×body1280valid
3.4s1986×body10240exit
1.1s1034×body640valid
867.0ms9989×pre80true
132.0ms374×body320valid
46.0ms451×body80valid
25.0ms121×body160valid