Details

Time bar (total: 18.5s)

sample46.0ms

Algorithm
intervals
Results
9.0ms13×body320valid
8.0ms192×body80valid
6.0ms32×body1280valid
5.0ms256×pre80true
3.0ms16×body640valid
0.0msbody160valid

simplify2.5s

Counts
1 → 1
Iterations
IterNodes
done5001
94691
81531
7665
6318
5164
474
353
234
120
010

prune4.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 15.0b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
1.0b
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

rewrite327.0ms

Algorithm
rewrite-expression-head
Rules
104×*-un-lft-identity
50×times-frac
47×add-sqr-sqrt
34×distribute-lft-out
31×fma-def
25×add-cube-cbrt
11×distribute-lft-out-- difference-of-squares
associate-/r* associate-/l*
add-cbrt-cube add-exp-log associate-/r/ add-log-exp
flip3-+ flip-+
expm1-log1p-u pow1 div-sub log1p-expm1-u div-inv associate-/l/
cbrt-undiv +-commutative clear-num sum-log frac-2neg flip3-- div-exp associate-+l- flip--
Counts
2 → 100
Calls
2 calls:
64.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
259.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series188.0ms

Counts
2 → 6
Calls
2 calls:
88.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
100.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

simplify1.3s

Counts
106 → 106
Iterations
IterNodes
done5002
21431
1340
0128

prune489.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 14.5b

localize29.0ms

Local error

Found 3 expressions with local error:

0.0b
(/ beta (+ (+ alpha beta) 2.0))
0.0b
(/ alpha (+ (+ alpha beta) 2.0))
1.0b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite290.0ms

Algorithm
rewrite-expression-head
Rules
182×*-un-lft-identity
91×times-frac
85×add-sqr-sqrt
80×add-cube-cbrt
63×prod-diff
60×distribute-lft-out
21×fma-neg
12×associate-/r/
10×associate-/r*
add-cbrt-cube add-exp-log
flip3-+ flip-+ div-inv associate-/l*
add-log-exp
expm1-log1p-u pow1 log1p-expm1-u
cbrt-undiv clear-num frac-2neg div-exp difference-of-squares
sub-neg flip3-- diff-log flip-- distribute-lft-out--
Counts
3 → 179
Calls
3 calls:
54.0ms
(/ beta (+ (+ alpha beta) 2.0))
28.0ms
(/ alpha (+ (+ alpha beta) 2.0))
191.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series271.0ms

Counts
3 → 9
Calls
3 calls:
65.0ms
(/ beta (+ (+ alpha beta) 2.0))
62.0ms
(/ alpha (+ (+ alpha beta) 2.0))
145.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify1.3s

Counts
188 → 188
Iterations
IterNodes
done5001
21881
1514
0221

prune704.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 2.2b

localize30.0ms

Local error

Found 4 expressions with local error:

0.3b
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
0.4b
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
0.6b
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
1.0b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite585.0ms

Algorithm
rewrite-expression-head
Rules
263×*-un-lft-identity
179×times-frac
176×add-sqr-sqrt
125×add-cube-cbrt
81×sqrt-prod
78×distribute-lft-out
63×prod-diff
32×add-exp-log
30×associate-*r* associate-*l*
21×fma-neg
20×add-cbrt-cube
16×associate-/r* associate-/r/
15×unswap-sqr
11×div-exp
pow1 flip3-+ sqrt-div prod-exp flip-+ div-inv
cbrt-undiv associate-/l* add-log-exp
expm1-log1p-u cbrt-unprod log1p-expm1-u
rec-exp 1-exp pow-flip
clear-num frac-2neg difference-of-squares
frac-times sub-neg sqrt-pow1 flip3-- pow1/2 diff-log pow-prod-down associate-*l/ associate-*r/ *-commutative flip-- distribute-lft-out-- inv-pow
Counts
4 → 310
Calls
4 calls:
203.0ms
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
32.0ms
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
38.0ms
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
278.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series439.0ms

Counts
4 → 12
Calls
4 calls:
92.0ms
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
124.0ms
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
111.0ms
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
111.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify1.1s

Counts
322 → 322
Iterations
IterNodes
done5000
1990
0374

prune2.1s

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 2.2b

localize64.0ms

Local error

Found 4 expressions with local error:

0.3b
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
0.4b
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
0.6b
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
1.0b
(- (* (/ alpha (+ (+ alpha beta) 2.0)) (/ alpha (+ (+ alpha beta) 2.0))) (* 1.0 1.0))

rewrite415.0ms

Algorithm
rewrite-expression-head
Rules
144×*-un-lft-identity
118×times-frac
114×add-sqr-sqrt
81×sqrt-prod
68×add-cube-cbrt
42×distribute-lft-out
32×add-exp-log
30×associate-*r* associate-*l*
20×add-cbrt-cube
16×associate-/r*
15×unswap-sqr
11×div-exp
pow1 sqrt-div prod-exp associate-/r/
cbrt-undiv associate-/l* add-log-exp
expm1-log1p-u flip3-+ cbrt-unprod flip-+ log1p-expm1-u div-inv
rec-exp 1-exp pow-flip
clear-num frac-2neg
frac-times sub-neg sqrt-pow1 flip3-- pow1/2 fma-neg diff-log prod-diff pow-prod-down associate-*l/ associate-*r/ *-commutative flip-- inv-pow difference-of-squares
Counts
4 → 226
Calls
4 calls:
261.0ms
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
49.0ms
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
34.0ms
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
54.0ms
(- (* (/ alpha (+ (+ alpha beta) 2.0)) (/ alpha (+ (+ alpha beta) 2.0))) (* 1.0 1.0))

series476.0ms

Counts
4 → 12
Calls
4 calls:
104.0ms
(* (/ 1 (sqrt (+ (+ alpha beta) 2.0))) (/ beta (sqrt (+ (+ alpha beta) 2.0))))
134.0ms
(/ beta (sqrt (+ (+ alpha beta) 2.0)))
94.0ms
(/ 1 (sqrt (+ (+ alpha beta) 2.0)))
143.0ms
(- (* (/ alpha (+ (+ alpha beta) 2.0)) (/ alpha (+ (+ alpha beta) 2.0))) (* 1.0 1.0))

simplify2.8s

Counts
238 → 238
Iterations
IterNodes
done5000
24590
1837
0296

prune1.3s

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 2.2b

regimes216.0ms

Accuracy

75.1% (3.1b remaining)

Error of 6.1b against oracle of 3.0b and baseline of 15.6b

bsearch84.0ms

Steps
ItersRangePoint
8
1541639454070.677
19367525498197844.0
10272132967178968.0

simplify7.0ms

Iterations
IterNodes
done39
139
033

end0.0ms

sample1.3s

Algorithm
intervals
Results
423.0ms5862×body80valid
242.0ms841×body1280valid
204.0ms8000×pre80true
133.0ms694×body640valid
101.0ms410×body320valid
21.0ms193×body160valid