Details

Time bar (total: 15.2s)

sample103.0ms

Algorithm
intervals
Results
29.0ms69×body10240exit
21.0ms48×body1280valid
17.0ms330×body80valid
11.0ms43×body640valid
4.0ms24×body320valid
1.0ms10×body160valid

simplify2.2s

Counts
1 → 1
Iterations

Useful iterations: 3 (44.0ms)

IterNodesCost
01929
14629
212229
333527
493327
5408427
done500027

prune6.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.7b

localize20.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x)))
0.0b
(/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x)))
0.0b
(* (+ 1.0 eps) x)
2.9b
(- (/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x))) (/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x))))

rewrite298.0ms

Algorithm
rewrite-expression-head
Rules
66×*-un-lft-identity
60×add-sqr-sqrt
46×times-frac
26×add-cube-cbrt
12×difference-of-squares
11×distribute-lft-out--
10×add-cbrt-cube associate-/l*
add-exp-log
distribute-lft-out
pow1 associate-/r* add-log-exp
associate-*l* associate-/l/
associate-*r*
cbrt-undiv flip3-- frac-2neg flip3-+ div-sub div-exp associate-*l/ clear-num flip-- flip-+ div-inv
sub-neg diff-log pow-prod-down prod-exp *-commutative frac-sub cbrt-unprod associate--r- unswap-sqr
Counts
4 → 119
Calls
4 calls:
49.0ms
(/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x)))
45.0ms
(/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x)))
20.0ms
(* (+ 1.0 eps) x)
179.0ms
(- (/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x))) (/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x))))

series312.0ms

Counts
4 → 12
Calls
4 calls:
46.0ms
(/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x)))
47.0ms
(/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x)))
28.0ms
(* (+ 1.0 eps) x)
191.0ms
(- (/ (+ (/ 1.0 eps) 1.0) (exp (* (- 1.0 eps) x))) (/ (- (/ 1.0 eps) 1.0) (exp (* (+ 1.0 eps) x))))

simplify945.0ms

Counts
131 → 131
Iterations

Useful iterations: done (940.0ms)

IterNodesCost
02452879
15872745
216032586
done50012545

prune376.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.4b

localize7.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ 2.0 (* (* x x) (- (* 0.6666666666666667 x) 1.0)))
0.0b
(- (* 0.6666666666666667 x) 1.0)
0.0b
(* (* x x) (- (* 0.6666666666666667 x) 1.0))

rewrite58.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-exp-log add-cbrt-cube
add-log-exp
add-sqr-sqrt sub-neg
distribute-rgt-in add-cube-cbrt associate-+r+ *-un-lft-identity distribute-lft-in
associate-*r* pow-prod-down prod-exp cbrt-unprod
flip3-- associate-*r/ flip--
+-commutative flip3-+ diff-log associate-*l* sum-log *-commutative flip-+ unswap-sqr
Counts
3 → 52
Calls
3 calls:
8.0ms
(+ 2.0 (* (* x x) (- (* 0.6666666666666667 x) 1.0)))
8.0ms
(- (* 0.6666666666666667 x) 1.0)
41.0ms
(* (* x x) (- (* 0.6666666666666667 x) 1.0))

series158.0ms

Counts
3 → 9
Calls
3 calls:
39.0ms
(+ 2.0 (* (* x x) (- (* 0.6666666666666667 x) 1.0)))
40.0ms
(- (* 0.6666666666666667 x) 1.0)
80.0ms
(* (* x x) (- (* 0.6666666666666667 x) 1.0))

simplify2.1s

Counts
61 → 61
Iterations

Useful iterations: 3 (821.0ms)

IterNodesCost
089787
1242724
2825650
33536648
done5002648

prune106.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

localize12.0ms

Local error

Found 4 expressions with local error:

0.1b
(* (cbrt (- (* 0.6666666666666667 x) 1.0)) (cbrt (- (* 0.6666666666666667 x) 1.0)))
0.1b
(cbrt (- (* 0.6666666666666667 x) 1.0))
0.1b
(cbrt (- (* 0.6666666666666667 x) 1.0))
0.1b
(cbrt (- (* 0.6666666666666667 x) 1.0))

rewrite77.0ms

Algorithm
rewrite-expression-head
Rules
25×cbrt-prod
23×add-sqr-sqrt
18×cbrt-div
15×add-cube-cbrt *-un-lft-identity
11×pow1
flip3-- pow1/3 flip--
add-exp-log swap-sqr associate-*r* associate-*l*
frac-times add-cbrt-cube add-log-exp unswap-sqr
associate-*r/ pow-prod-down associate-*l/ pow-sqr pow-prod-up
pow2 pow-plus prod-exp *-commutative cbrt-unprod
Counts
4 → 87
Calls
4 calls:
55.0ms
(* (cbrt (- (* 0.6666666666666667 x) 1.0)) (cbrt (- (* 0.6666666666666667 x) 1.0)))
6.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
6.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
6.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))

series558.0ms

Counts
4 → 12
Calls
4 calls:
159.0ms
(* (cbrt (- (* 0.6666666666666667 x) 1.0)) (cbrt (- (* 0.6666666666666667 x) 1.0)))
136.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
128.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
135.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))

simplify2.1s

Counts
99 → 99
Iterations

Useful iterations: done (2.1s)

IterNodesCost
01832139
14382008
213091905
347651623
done50001545

prune298.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

localize16.0ms

Local error

Found 4 expressions with local error:

0.1b
(cbrt (- (* 0.6666666666666667 x) 1.0))
0.1b
(cbrt (- (* 0.6666666666666667 x) 1.0))
0.1b
(* (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))))
0.2b
(pow (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) 4)

rewrite92.0ms

Algorithm
rewrite-expression-head
Rules
69×cbrt-prod
40×add-sqr-sqrt
28×cbrt-div
22×add-cube-cbrt *-un-lft-identity
12×pow1
unpow-prod-down pow1/3 swap-sqr associate-*r* associate-*l* unswap-sqr
flip3-- flip--
add-exp-log
frac-times add-cbrt-cube add-log-exp
pow-unpow
pow-pow associate-*r/ pow-prod-down associate-*l/ pow-sqr pow-prod-up
pow2 pow-to-exp pow-plus pow-exp prod-exp *-commutative cbrt-unprod sqr-pow
Counts
4 → 112
Calls
4 calls:
6.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
7.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
62.0ms
(* (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))))
13.0ms
(pow (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) 4)

series921.0ms

Counts
4 → 12
Calls
4 calls:
331.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
130.0ms
(cbrt (- (* 0.6666666666666667 x) 1.0))
191.0ms
(* (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))))
268.0ms
(pow (cbrt (cbrt (- (* 0.6666666666666667 x) 1.0))) 4)

simplify909.0ms

Counts
124 → 124
Iterations

Useful iterations: done (903.0ms)

IterNodesCost
02932875
16832569
220482345
done50012165

prune449.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

regimes78.0ms

Accuracy

96.7% (0.5b remaining)

Error of 0.9b against oracle of 0.4b and baseline of 16.4b

bsearch138.0ms

Steps
ItersRangePoint
9
1.4733657795017903
2551964808.6153555
15.862342613340287

simplify8.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03895
15395
25595
done5595

end0.0ms

sample2.9s

Algorithm
intervals
Results
773.0ms1989×body10240exit
718.0ms1697×body1280valid
522.0ms10035×body80valid
311.0ms1292×body640valid
100.0ms641×body320valid
37.0ms320×body160valid