Details

Time bar (total: 16.1s)

sample150.0ms

Algorithm
intervals
Results
96.0ms173×body1280valid
14.0ms48×body640valid
11.0ms253×body80valid
3.0ms17×body320valid
2.0ms14×body160valid

simplify141.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
078
1148
2268
3408
4498
5548
6638
7808
8958
91038
101118
done1118

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.1b

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(- (exp x) 2.0)
4.4b
(+ (- (exp x) 2.0) (exp (- x)))

rewrite85.0ms

Algorithm
rewrite-expression-head
Rules
*-un-lft-identity add-log-exp
add-sqr-sqrt frac-add
flip3-- flip--
pow1 add-exp-log neg-sub0 exp-neg add-cube-cbrt sub-neg associate-+l+ exp-diff diff-log sum-log add-cbrt-cube distribute-lft-out distribute-lft-out--
+-commutative associate-+l- flip3-+ flip-+ difference-of-squares
Counts
2 → 35
Calls
2 calls:
15.0ms
(- (exp x) 2.0)
69.0ms
(+ (- (exp x) 2.0) (exp (- x)))

series95.0ms

Counts
2 → 6
Calls
2 calls:
23.0ms
(- (exp x) 2.0)
72.0ms
(+ (- (exp x) 2.0) (exp (- x)))

simplify1.8s

Counts
41 → 41
Iterations

Useful iterations: 3 (561.0ms)

IterNodesCost
093511
1204465
2579445
32107432
done5000432

prune106.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize21.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4)))
0.0b
(+ (pow x 2) (+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4))))
0.1b
(* 1/360 (pow x 6))
0.1b
(* 1/12 (pow x 4))

rewrite107.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
14×add-exp-log associate-*r*
12×*-un-lft-identity
11×add-log-exp
10×add-cube-cbrt
unpow-prod-down add-cbrt-cube
associate-*l* prod-exp unswap-sqr
pow1 sum-log sqr-pow
+-commutative pow-to-exp flip3-+ pow-exp *-commutative cbrt-unprod flip-+
associate-+r+ distribute-lft-out
Counts
4 → 75
Calls
4 calls:
10.0ms
(+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4)))
47.0ms
(+ (pow x 2) (+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4))))
23.0ms
(* 1/360 (pow x 6))
24.0ms
(* 1/12 (pow x 4))

series390.0ms

Counts
4 → 12
Calls
4 calls:
199.0ms
(+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4)))
88.0ms
(+ (pow x 2) (+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4))))
61.0ms
(* 1/360 (pow x 6))
41.0ms
(* 1/12 (pow x 4))

simplify4.4s

Counts
87 → 87
Iterations

Useful iterations: done (4.4s)

IterNodesCost
01331068
1331934
2952888
34364870
done5001868

prune297.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(- (exp (- x)) 2.0)
3.8b
(+ (exp x) (- (exp (- x)) 2.0))

rewrite116.0ms

Algorithm
rewrite-expression-head
Rules
*-un-lft-identity add-log-exp
add-sqr-sqrt
pow1 add-exp-log add-cube-cbrt sub-neg associate-+r+ diff-log sum-log add-cbrt-cube distribute-lft-out distribute-lft-out--
+-commutative associate-+r- flip3-- flip3-+ flip-- flip-+ difference-of-squares
Counts
2 → 31
Calls
2 calls:
30.0ms
(- (exp (- x)) 2.0)
85.0ms
(+ (exp x) (- (exp (- x)) 2.0))

series82.0ms

Counts
2 → 6
Calls
2 calls:
18.0ms
(- (exp (- x)) 2.0)
64.0ms
(+ (exp x) (- (exp (- x)) 2.0))

simplify1.4s

Counts
37 → 37
Iterations

Useful iterations: 3 (401.0ms)

IterNodesCost
077392
1178364
2466344
31738343
done5001343

prune69.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize17.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ (exp (- x)) 2.0)
0.0b
(+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))
0.0b
(exp (* x -3))
4.1b
(+ (exp x) (/ (- (exp (* x -3)) (pow 2.0 3)) (+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))))

rewrite250.0ms

Algorithm
rewrite-expression-head
Rules
12×add-log-exp
*-un-lft-identity
pow1 add-exp-log add-sqr-sqrt add-cube-cbrt add-cbrt-cube
+-commutative flip3-+ sum-log flip-+
associate-+l+ distribute-lft-out
distribute-rgt-in associate-+r- exp-prod exp-to-pow distribute-lft-in div-sub rem-exp-log
Counts
4 → 48
Calls
4 calls:
22.0ms
(+ (exp (- x)) 2.0)
48.0ms
(+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))
8.0ms
(exp (* x -3))
170.0ms
(+ (exp x) (/ (- (exp (* x -3)) (pow 2.0 3)) (+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))))

series338.0ms

Counts
4 → 12
Calls
4 calls:
18.0ms
(+ (exp (- x)) 2.0)
61.0ms
(+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))
11.0ms
(exp (* x -3))
248.0ms
(+ (exp x) (/ (- (exp (* x -3)) (pow 2.0 3)) (+ (* 2.0 (+ (exp (- x)) 2.0)) (exp (* x -2)))))

simplify2.4s

Counts
60 → 60
Iterations

Useful iterations: done (2.4s)

IterNodesCost
01411078
13471034
2964927
33394902
done5000893

prune281.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0b

regimes25.0ms

Accuracy

0% (0.5b remaining)

Error of 0.6b against oracle of 0.1b and baseline of 0.6b

bsearch0.0ms

simplify4.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01315
11715
done1715

end0.0ms

sample3.5s

Algorithm
intervals
Results
2.4s5686×body1280valid
266.0ms1209×body640valid
259.0ms8093×body80valid
83.0ms626×body320valid
28.0ms321×body160valid