Details

Time bar (total: 16.5s)

sample210.0ms

Algorithm
intervals
Results
74.0ms77×body2560valid
56.0ms116×body1280valid
43.0ms54×body10240exit
13.0ms37×body640valid
5.0ms310×pre80true
1.0msbody320valid
1.0ms19×body80valid

simplify1.1s

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
01724
14024
210124
323924
465324
5284524
done500124

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 59.4b

localize16.0ms

Local error

Found 4 expressions with local error:

0.5b
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
3.6b
(- (exp (* a eps)) 1.0)
4.8b
(- (exp (* b eps)) 1.0)
7.6b
(- (exp (* (+ a b) eps)) 1.0)

rewrite30.0ms

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:
16.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
4.0ms
(- (exp (* a eps)) 1.0)
4.0ms
(- (exp (* b eps)) 1.0)
4.0ms
(- (exp (* (+ a b) eps)) 1.0)

series318.0ms

Counts
4 → 12
Calls
4 calls:
202.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1.0)) (* (- (exp (* a eps)) 1.0) (- (exp (* b eps)) 1.0)))
34.0ms
(- (exp (* a eps)) 1.0)
32.0ms
(- (exp (* b eps)) 1.0)
50.0ms
(- (exp (* (+ a b) eps)) 1.0)

simplify549.0ms

Counts
85 → 85
Iterations

Useful iterations: 2 (151.0ms)

IterNodesCost
01741783
14841741
220651439
done50001439

prune310.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.0b

localize4.0ms

Local error

Found 1 expressions with local error:

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

rewrite16.0ms

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:
15.0ms
(+ (/ 1 b) (/ 1 a))

series10.0ms

Counts
1 → 3
Calls
1 calls:
10.0ms
(+ (/ 1 b) (/ 1 a))

simplify1.6s

Counts
22 → 22
Iterations

Useful iterations: 3 (83.0ms)

IterNodesCost
040229
1102216
2223196
3493194
4946194
52288194
done5000194

prune48.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.0b

localize4.0ms

Local error

Found 1 expressions with local error:

15.0b
(/ (+ a b) (* a b))

rewrite9.0ms

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:
8.0ms
(/ (+ a b) (* a b))

series38.0ms

Counts
1 → 3
Calls
1 calls:
38.0ms
(/ (+ a b) (* a b))

simplify1.9s

Counts
28 → 28
Iterations

Useful iterations: 2 (37.0ms)

IterNodesCost
055288
1145283
2466241
31592241
44871241
done5000241

prune61.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0.0b

localize6.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ a b) b)
4.6b
(* (/ 1 a) (/ (+ a b) b))

rewrite34.0ms

Algorithm
rewrite-expression-head
Rules
43×add-sqr-sqrt
42×*-un-lft-identity
40×times-frac
26×add-exp-log add-cube-cbrt
16×associate-*r* add-cbrt-cube
13×associate-*l*
div-exp
prod-exp
distribute-lft-out
unswap-sqr
cbrt-undiv
pow1 cbrt-unprod associate-/l*
associate-/r* div-inv
rec-exp 1-exp associate-/l/ add-log-exp
frac-times frac-2neg flip3-+ associate-*r/ pow-prod-down associate-*l/ clear-num *-commutative flip-+
Counts
2 → 92
Calls
2 calls:
8.0ms
(/ (+ a b) b)
21.0ms
(* (/ 1 a) (/ (+ a b) b))

series58.0ms

Counts
2 → 6
Calls
2 calls:
18.0ms
(/ (+ a b) b)
40.0ms
(* (/ 1 a) (/ (+ a b) b))

simplify3.0s

Counts
98 → 98
Iterations

Useful iterations: 2 (307.0ms)

IterNodesCost
01401145
13951008
21207874
34344874
done5001874

prune154.0ms

Pruning

6 alts after pruning (3 fresh and 3 done)

Merged error: 0.0b

regimes95.0ms

Accuracy

-47% (4.7b remaining)

Error of 4.8b against oracle of 0.1b and baseline of 3.3b

bsearch88.0ms

Steps
ItersRangePoint
5
1.9693570888132737e-31
5.4209506770775015e-31
5.3360736243582115e-31

simplify2.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
02542
13642
done3642

end0.0ms

sample6.8s

Algorithm
intervals
Results
2.5s2586×body2560valid
1.8s2020×body10240exit
1.7s3407×body1280valid
298.0ms1098×body640valid
163.0ms10022×pre80true
64.0ms345×body320valid
23.0ms437×body80valid
15.0ms129×body160valid