Details

Time bar (total: 13.4s)

sample154.0ms

Algorithm
intervals
Results
60.0ms33×body2560valid
51.0ms75×body1280valid
15.0ms53×body640valid
5.0ms104×body80valid
5.0ms28×body320valid
2.0ms69×body80nan
1.0ms11×body160valid

simplify42.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
0257
1597
21417
33467
411717
550017
done50017

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 45.3b

localize12.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
1.4b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
9.0b
(pow (+ 1.0 (/ i n)) n)
10.6b
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

rewrite797.0ms

Algorithm
rewrite-expression-head
Rules
320×times-frac
289×add-sqr-sqrt
198×*-un-lft-identity
140×add-cube-cbrt
96×associate-*r*
84×difference-of-squares
32×unpow-prod-down
29×sqr-pow
28×distribute-lft-out--
19×add-exp-log
18×add-cbrt-cube
17×div-inv
13×associate-/r*
pow1 associate-/l*
cbrt-undiv div-exp add-log-exp
pow-unpow associate-*l* prod-exp cbrt-unprod unswap-sqr
flip3-- associate-/r/ flip-- associate-/l/
pow-to-exp sub-neg pow-pow frac-2neg diff-log div-sub associate-*r/ pow-prod-down pow-exp clear-num *-commutative distribute-lft-out
Counts
4 → 281
Calls
4 calls:
320.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
152.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
17.0ms
(pow (+ 1.0 (/ i n)) n)
291.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

series1.2s

Counts
4 → 12
Calls
4 calls:
363.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
244.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
206.0ms
(pow (+ 1.0 (/ i n)) n)
345.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

simplify54.0ms

Counts
293 → 293
Iterations

Useful iterations: 1 (27.0ms)

IterNodesCost
012263285
150023166
done50023166

prune764.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 24.0b

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(* (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i)) n)
0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i))
1.4b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
9.0b
(pow (+ 1.0 (/ i n)) n)

rewrite821.0ms

Algorithm
rewrite-expression-head
Rules
44×add-sqr-sqrt
29×*-un-lft-identity
28×associate-*r*
22×times-frac
19×add-exp-log add-cube-cbrt
18×add-cbrt-cube
12×pow1 difference-of-squares
unpow-prod-down
prod-exp cbrt-unprod
add-log-exp
sqr-pow
associate-*l* pow-prod-down distribute-lft-out--
pow-unpow
cbrt-undiv associate-*r/ div-exp *-commutative unswap-sqr
pow-to-exp sub-neg flip3-- pow-pow diff-log associate-*l/ pow-exp flip-- div-inv distribute-lft-out
Counts
4 → 99
Calls
4 calls:
343.0ms
(* (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i)) n)
300.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i))
156.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
17.0ms
(pow (+ 1.0 (/ i n)) n)

series990.0ms

Counts
4 → 12
Calls
4 calls:
369.0ms
(* (* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i)) n)
159.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) i))
251.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
211.0ms
(pow (+ 1.0 (/ i n)) n)

simplify69.0ms

Counts
111 → 111
Iterations

Useful iterations: 2 (60.0ms)

IterNodesCost
0561927
12792821
25001820
done5001820

prune240.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 13.0b

localize20.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 0.5 (pow i 2))
0.1b
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
13.3b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
14.1b
(* (pow i 2) (log 1.0))

rewrite554.0ms

Algorithm
rewrite-expression-head
Rules
33×add-sqr-sqrt
25×add-exp-log
21×add-cube-cbrt *-un-lft-identity
19×add-cbrt-cube
15×associate-*r*
12×associate-*l*
11×prod-exp
10×pow1
times-frac
unpow-prod-down unswap-sqr
cbrt-unprod
log-prod
unpow2 add-log-exp sqr-pow
distribute-rgt-in distribute-lft-in pow-prod-down associate-/r* *-commutative associate-/l*
cbrt-undiv pow-to-exp div-exp pow-exp associate-/l/
flip3-- frac-2neg div-sub associate-*r/ associate-*l/ clear-num log-pow flip-- div-inv
Counts
4 → 112
Calls
4 calls:
11.0ms
(* 0.5 (pow i 2))
278.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
248.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
13.0ms
(* (pow i 2) (log 1.0))

series513.0ms

Counts
4 → 12
Calls
4 calls:
25.0ms
(* 0.5 (pow i 2))
203.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
143.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
142.0ms
(* (pow i 2) (log 1.0))

simplify78.0ms

Counts
124 → 124
Iterations

Useful iterations: 1 (15.0ms)

IterNodesCost
05251450
126211228
250011228
done50011228

prune342.0ms

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 13.0b

localize18.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 0.5 (pow i 2))
0.1b
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
13.3b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
14.1b
(* (pow i 2) (log 1.0))

rewrite559.0ms

Algorithm
rewrite-expression-head
Rules
33×add-sqr-sqrt
25×add-exp-log
21×add-cube-cbrt *-un-lft-identity
19×add-cbrt-cube
15×associate-*r*
12×associate-*l*
11×prod-exp
10×pow1
times-frac
unpow-prod-down unswap-sqr
cbrt-unprod
log-prod
unpow2 add-log-exp sqr-pow
distribute-rgt-in distribute-lft-in pow-prod-down associate-/r* *-commutative associate-/l*
cbrt-undiv pow-to-exp div-exp pow-exp associate-/l/
flip3-- frac-2neg div-sub associate-*r/ associate-*l/ clear-num log-pow flip-- div-inv
Counts
4 → 112
Calls
4 calls:
11.0ms
(* 0.5 (pow i 2))
279.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
252.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
13.0ms
(* (pow i 2) (log 1.0))

series516.0ms

Counts
4 → 12
Calls
4 calls:
32.0ms
(* 0.5 (pow i 2))
206.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
134.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
144.0ms
(* (pow i 2) (log 1.0))

simplify78.0ms

Counts
124 → 124
Iterations

Useful iterations: 1 (15.0ms)

IterNodesCost
05251450
126211228
250011228
done50011228

prune345.0ms

Pruning

10 alts after pruning (8 fresh and 2 done)

Merged error: 13.0b

regimes142.0ms

Accuracy

48.6% (11.7b remaining)

Error of 22.9b against oracle of 11.1b and baseline of 34.0b

bsearch260.0ms

Steps
ItersRangePoint
8
1.5934329611832436e-130
4.113531426965663e-127
1.6134148830388508e-130
8
-7.622341151832115e-247
-6.506148429240512e-251
-9.519350012649904e-251
6
-4.3436177944509636e+95
-5.9618745358935405e+94
-7.766937677453618e+94

simplify1.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
05850
15850
done5850

end0.0ms

sample4.9s

Algorithm
intervals
Results
1.9s1020×body2560valid
1.7s2402×body1280valid
463.0ms1647×body640valid
150.0ms884×body320valid
129.0ms3072×body80valid
78.0ms2291×body80nan
46.0ms438×body160valid
18.0msbody5120valid