Details

Time bar (total: 27.2s)

sample290.0ms

Algorithm
intervals
Results
84.0ms69×body10240exit
59.0ms54×body1280valid
56.0ms345×body80valid
30.0ms14×body160valid
24.0ms35×body640valid
10.0ms21×body320valid

simplify1.8s

Counts
1 → 1
Iterations
IterNodes
53061
4844
3296
2120
146
019

prune14.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.3b

localize39.0ms

Local error

Found 4 expressions with local error:

0.0b
(- (- x) (* x eps))
0.0b
(/ (exp (+ (- x) (* x eps))) eps)
0.0b
(/ (exp (- (- x) (* x eps))) eps)
3.6b
(- (+ (exp (+ (- x) (* x eps))) (/ (exp (+ (- x) (* x eps))) eps)) (- (/ (exp (- (- x) (* x eps))) eps) (exp (- (- x) (* x eps)))))

rewrite705.0ms

Algorithm
rewrite-expression-head
Rules
35×*-un-lft-identity
27×times-frac
25×add-sqr-sqrt
23×add-cube-cbrt
20×add-log-exp
12×exp-sum frac-sub
associate-/l*
add-cbrt-cube exp-diff diff-log
sub-neg
associate-/r* add-exp-log distribute-lft-out--
neg-sub0 flip3-- flip--
pow1 associate-+l- insert-posit16
flip3-+ frac-add flip-+
cbrt-undiv clear-num sum-log frac-2neg div-exp div-inv distribute-lft-out associate--r+ associate-/l/
associate--l- neg-log associate--l+ associate--r- difference-of-squares
Counts
4 → 119
Calls
4 calls:
8.0ms
(- (- x) (* x eps))
29.0ms
(/ (exp (+ (- x) (* x eps))) eps)
36.0ms
(/ (exp (- (- x) (* x eps))) eps)
629.0ms
(- (+ (exp (+ (- x) (* x eps))) (/ (exp (+ (- x) (* x eps))) eps)) (- (/ (exp (- (- x) (* x eps))) eps) (exp (- (- x) (* x eps)))))

series268.0ms

Counts
4 → 12
Calls
4 calls:
60.0ms
(- (- x) (* x eps))
43.0ms
(/ (exp (+ (- x) (* x eps))) eps)
42.0ms
(/ (exp (- (- x) (* x eps))) eps)
123.0ms
(- (+ (exp (+ (- x) (* x eps))) (/ (exp (+ (- x) (* x eps))) eps)) (- (/ (exp (- (- x) (* x eps))) eps) (exp (- (- x) (* x eps)))))

simplify1.3s

Counts
131 → 131
Iterations
IterNodes
22777
1668
0253

prune1.4s

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.5b

localize30.0ms

Local error

Found 4 expressions with local error:

0.0b
(- 2 (* x x))
0.1b
(* x (* (* x x) 2/3))
0.1b
(* (* x x) 2/3)
5.6b
(+ (- 2 (* x x)) (* x (* (* x x) 2/3)))

rewrite126.0ms

Algorithm
rewrite-expression-head
Rules
18×pow1 add-cbrt-cube add-exp-log
11×add-log-exp
pow-prod-down prod-exp cbrt-unprod
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
associate-*r* associate-*l* insert-posit16
associate-+l+ sum-log sub-neg diff-log *-commutative
+-commutative flip3-+ flip3-- associate-+l- flip-+ flip-- difference-of-squares unswap-sqr
Counts
4 → 72
Calls
4 calls:
8.0ms
(- 2 (* x x))
54.0ms
(* x (* (* x x) 2/3))
34.0ms
(* (* x x) 2/3)
28.0ms
(+ (- 2 (* x x)) (* x (* (* x x) 2/3)))

series261.0ms

Counts
4 → 12
Calls
4 calls:
71.0ms
(- 2 (* x x))
80.0ms
(* x (* (* x x) 2/3))
48.0ms
(* (* x x) 2/3)
63.0ms
(+ (- 2 (* x x)) (* x (* (* x x) 2/3)))

simplify2.2s

Counts
84 → 84
Iterations
IterNodes
34261
21006
1313
0110

prune505.0ms

Pruning

5 alts after pruning (5 fresh and 0 done)

Merged error: 0.5b

localize64.0ms

Local error

Found 4 expressions with local error:

0.1b
(* x (posit16->real (real->posit16 (* (* x x) 2/3))))
0.1b
(* (* x x) 2/3)
5.6b
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
27.4b
(posit16->real (real->posit16 (* (* x x) 2/3)))

rewrite77.0ms

Algorithm
rewrite-expression-head
Rules
11×pow1 add-cbrt-cube add-exp-log
10×add-sqr-sqrt
add-log-exp
*-un-lft-identity add-cube-cbrt
associate-*r*
associate-*l* pow-prod-down prod-exp cbrt-unprod insert-posit16
associate-+l+ sum-log *-commutative unswap-sqr
+-commutative sub-neg flip3-+ diff-log associate-+l- flip-+ remove-posit16
Counts
4 → 64
Calls
4 calls:
9.0ms
(* x (posit16->real (real->posit16 (* (* x x) 2/3))))
36.0ms
(* (* x x) 2/3)
31.0ms
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
1.0ms
(posit16->real (real->posit16 (* (* x x) 2/3)))

series201.0ms

Counts
4 → 12
Calls
4 calls:
74.0ms
(* x (posit16->real (real->posit16 (* (* x x) 2/3))))
50.0ms
(* (* x x) 2/3)
47.0ms
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
30.0ms
(posit16->real (real->posit16 (* (* x x) 2/3)))

simplify1.5s

Counts
76 → 76
Iterations
IterNodes
33074
2781
1256
099

prune1.1s

Pruning

5 alts after pruning (5 fresh and 0 done)

Merged error: 0.5b

localize63.0ms

Local error

Found 4 expressions with local error:

0.1b
(* (* x x) 2/3)
4.8b
(posit16->real (real->posit16 (+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))))
5.6b
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
27.4b
(posit16->real (real->posit16 (* (* x x) 2/3)))

rewrite53.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-cbrt-cube add-exp-log add-log-exp
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
insert-posit16
associate-*r* pow-prod-down prod-exp cbrt-unprod
associate-+l+ sum-log remove-posit16
+-commutative sub-neg flip3-+ diff-log associate-*l* *-commutative associate-+l- flip-+ unswap-sqr
Counts
4 → 54
Calls
4 calls:
34.0ms
(* (* x x) 2/3)
0.0ms
(posit16->real (real->posit16 (+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))))
17.0ms
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
0.0ms
(posit16->real (real->posit16 (* (* x x) 2/3)))

series182.0ms

Counts
4 → 12
Calls
4 calls:
50.0ms
(* (* x x) 2/3)
48.0ms
(posit16->real (real->posit16 (+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))))
55.0ms
(+ (- 2 (* x x)) (* x (posit16->real (real->posit16 (* (* x x) 2/3)))))
29.0ms
(posit16->real (real->posit16 (* (* x x) 2/3)))

simplify1.5s

Counts
66 → 66
Iterations
IterNodes
32822
2691
1232
092

prune1.4s

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.5b

regimes129.0ms

Accuracy

96.8% (0.5b remaining)

Error of 0.9b against oracle of 0.4b and baseline of 16.6b

bsearch324.0ms

Steps
ItersRangePoint
10
0.007550379505761139
462865523371709.2
245.97670246303022

simplify8.0ms

Iterations
IterNodes
237
137
030

end0.0ms

sample11.7s

Algorithm
intervals
Results
3.2s1880×body10240exit
3.2s1744×body1280valid
3.0s10040×body80valid
1.2s1251×body640valid
445.0ms594×body320valid
141.0ms318×body160valid