Details

Time bar (total: 8.8s)

sample34.0ms

Algorithm
intervals
Results
13.0ms65×body1280valid
5.0ms37×body640valid
3.0ms119×body80valid
3.0ms26×body320valid
1.0msbody160valid

simplify2.2s

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
0910
11510
22210
33010
45310
511510
627010
777610
8294810
done500110

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 32.3b

localize7.0ms

Local error

Found 1 expressions with local error:

2.5b
(- (/ 2.0 (+ 1.0 (exp (* -2.0 x)))) 1.0)

rewrite67.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
*-un-lft-identity add-log-exp
difference-of-squares
pow1 add-exp-log add-cube-cbrt sub-neg flip3-- times-frac diff-log add-cbrt-cube flip-- distribute-lft-out--
Counts
1 → 15
Calls
1 calls:
67.0ms
(- (/ 2.0 (+ 1.0 (exp (* -2.0 x)))) 1.0)

series78.0ms

Counts
1 → 3
Calls
1 calls:
78.0ms
(- (/ 2.0 (+ 1.0 (exp (* -2.0 x)))) 1.0)

simplify1.3s

Counts
18 → 18
Iterations

Useful iterations: done (1.3s)

IterNodesCost
055302
1119299
2246275
3596268
41692268
done5000266

prune42.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.0b

localize8.0ms

Local error

Found 3 expressions with local error:

0.0b
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
0.0b
(* x (- 1.0 (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))
0.1b
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))

rewrite59.0ms

Algorithm
rewrite-expression-head
Rules
12×pow1 add-exp-log add-sqr-sqrt add-cbrt-cube
associate-*l*
add-cube-cbrt *-un-lft-identity associate-*r/
distribute-rgt-in distribute-lft-in associate-*r*
pow-prod-down prod-exp cbrt-unprod
*-commutative add-log-exp
sub-neg flip3-+ flip-+ unswap-sqr
flip3-- flip--
Counts
3 → 70
Calls
3 calls:
15.0ms
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
16.0ms
(* x (- 1.0 (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))
26.0ms
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))

series203.0ms

Counts
3 → 9
Calls
3 calls:
64.0ms
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
67.0ms
(* x (- 1.0 (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))
72.0ms
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))

simplify1.0s

Counts
79 → 79
Iterations

Useful iterations: done (1.0s)

IterNodesCost
01211064
13141021
21102889
done5000883

prune130.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize10.0ms

Local error

Found 3 expressions with local error:

0.0b
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
0.1b
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))
0.8b
(log (exp (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))

rewrite48.0ms

Algorithm
rewrite-expression-head
Rules
11×pow1
10×add-exp-log add-cbrt-cube
distribute-rgt-in add-sqr-sqrt distribute-lft-in
add-cube-cbrt log-prod *-un-lft-identity
associate-*r/ associate-*l*
associate-*r* exp-sum pow-prod-down prod-exp cbrt-unprod add-log-exp
log-pow
flip3-+ *-commutative flip-+
exp-prod exp-to-pow rem-log-exp unswap-sqr
Counts
3 → 64
Calls
3 calls:
15.0ms
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
25.0ms
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))
5.0ms
(log (exp (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))

series206.0ms

Counts
3 → 9
Calls
3 calls:
66.0ms
(* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x)))
70.0ms
(* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))
71.0ms
(log (exp (* x (* x (+ 0.33333333333333337 (* 5.551115123125783e-17 x))))))

simplify2.0s

Counts
73 → 73
Iterations

Useful iterations: 2 (147.0ms)

IterNodesCost
0111900
1255835
2871705
33744705
done5001705

prune143.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes169.0ms

Accuracy

99.5% (0.2b remaining)

Error of 0.2b against oracle of 0.0b and baseline of 32.1b

bsearch2.0ms

simplify4.0ms

Iterations

Useful iterations: 1 (2.0ms)

IterNodesCost
02547
13538
done3538

end0.0ms

sample921.0ms

Algorithm
intervals
Results
363.0ms1763×body1280valid
169.0ms1226×body640valid
103.0ms4084×body80valid
60.0ms618×body320valid
18.0ms309×body160valid