Details

Time bar (total: 23.1s)

sample134.0ms

Algorithm
intervals
Results
44.0ms194×body80valid
27.0ms32×body2560valid
18.0ms27×body1280valid
14.0ms95×body80nan
5.0msbody5120valid
5.0msbody640valid
2.0msbody320valid
2.0msbody160valid

simplify195.0ms

Calls
1 calls:
Slowest
195.0ms
(/ (+ (- b) (sqrt (- (* b b) (* 4 (* a c))))) (* 2 a))

prune10.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.1b

localize23.0ms

Local error

Found 4 expressions with local error:

22.4b
(sqrt (fma b b (* (* a c) -4)))
2.4b
(- (sqrt (fma b b (* (* a c) -4))) b)
1.3b
(fma b b (* (* a c) -4))
0.1b
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)

rewrite27.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
fma-neg sqrt-prod
expm1-log1p-u pow1 add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u associate-/l* add-log-exp
div-sub div-inv
rem-sqrt-square clear-num sub-neg frac-2neg flip3-- pow1/2 fma-udef flip-- associate-/l/
Calls
4 calls:
Slowest
18.0ms
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)
6.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
1.0ms
(sqrt (fma b b (* (* a c) -4)))
0.0ms
(fma b b (* (* a c) -4))

series245.0ms

Calls
4 calls:
Slowest
72.0ms
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)
70.0ms
(sqrt (fma b b (* (* a c) -4)))
62.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
40.0ms
(fma b b (* (* a c) -4))

simplify1.2s

Calls
26 calls:
Slowest
234.0ms
(- b (* 2 (/ (* a c) b)))
114.0ms
(- (* 2 (/ (* a c) b)) (* 2 b))
96.0ms
(* -2 (/ (* a c) b))
82.0ms
(- (pow b 2) (* 4 (* a c)))
79.0ms
(- (* 2 (/ (* a c) b)) b)

prune928.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 3.5b

localize6.0ms

Local error

Found 4 expressions with local error:

22.4b
(sqrt (fma b b (* (* a c) -4)))
2.4b
(- (sqrt (fma b b (* (* a c) -4))) b)
1.3b
(fma b b (* (* a c) -4))
0.2b
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))

rewrite29.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube fma-neg add-exp-log sqrt-prod
expm1-log1p-u associate-*r* associate-*l* insert-posit16 log1p-expm1-u add-log-exp
div-inv
frac-times rem-sqrt-square sub-neg flip3-- pow1/2 pow-prod-down associate-*l/ prod-exp associate-*r/ un-div-inv *-commutative cbrt-unprod fma-udef flip--
Calls
4 calls:
Slowest
20.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
6.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
1.0ms
(sqrt (fma b b (* (* a c) -4)))
0.0ms
(fma b b (* (* a c) -4))

series227.0ms

Calls
4 calls:
Slowest
73.0ms
(sqrt (fma b b (* (* a c) -4)))
64.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
63.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
27.0ms
(fma b b (* (* a c) -4))

simplify2.1s

Calls
34 calls:
Slowest
344.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
209.0ms
(- b (* 2 (/ (* a c) b)))
199.0ms
(+ (log (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (log (/ 1 a)))
193.0ms
(* (* (* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (* (* (/ 1 a) (/ 1 a)) (/ 1 a)))
119.0ms
(- (* 2 (/ (* a c) b)) (* 2 b))

prune1.1s

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 3.5b

localize7.0ms

Local error

Found 4 expressions with local error:

22.4b
(sqrt (fma b b (* (* a c) -4)))
2.4b
(- (sqrt (fma b b (* (* a c) -4))) b)
1.3b
(fma b b (* (* a c) -4))
0.2b
(/ 1 (/ a (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)))

rewrite16.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
fma-neg sqrt-prod
pow1 associate-/r* add-exp-log
expm1-log1p-u add-cbrt-cube insert-posit16 log1p-expm1-u add-log-exp
associate-/r/ div-inv
rem-sqrt-square rec-exp clear-num sub-neg frac-2neg flip3-- pow1/2 fma-udef pow-flip flip-- inv-pow
Calls
4 calls:
Slowest
12.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
2.0ms
(sqrt (fma b b (* (* a c) -4)))
1.0ms
(/ 1 (/ a (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)))
0.0ms
(fma b b (* (* a c) -4))

series246.0ms

Calls
4 calls:
Slowest
90.0ms
(/ 1 (/ a (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)))
68.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
55.0ms
(sqrt (fma b b (* (* a c) -4)))
33.0ms
(fma b b (* (* a c) -4))

simplify1.2s

Calls
27 calls:
Slowest
247.0ms
(- b (* 2 (/ (* a c) b)))
96.0ms
(- (* 2 (/ (* a c) b)) (* 2 b))
95.0ms
(- (* 2 (/ (* a c) b)) b)
84.0ms
(* -2 (/ (* a c) b))
63.0ms
(- (pow b 2) (* 4 (* a c)))

prune1.0s

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 3.4b

localize23.0ms

Local error

Found 4 expressions with local error:

22.4b
(sqrt (fma -4 (* a c) (* b b)))
2.4b
(- (sqrt (fma -4 (* a c) (* b b))) b)
1.0b
(fma -4 (* a c) (* b b))
0.2b
(/ (/ 1 a) (/ 2 (- (sqrt (fma -4 (* a c) (* b b))) b)))

rewrite27.0ms

Algorithm
rewrite-expression-head
Rules
24×times-frac
20×add-sqr-sqrt
19×*-un-lft-identity add-cube-cbrt
13×div-inv
11×associate-/r/
associate-/r* flip3-- add-cbrt-cube fma-neg add-exp-log sqrt-prod flip--
expm1-log1p-u pow1 insert-posit16 log1p-expm1-u associate-/l* add-log-exp
cbrt-undiv rem-sqrt-square clear-num sub-neg frac-2neg pow1/2 div-exp fma-udef associate-/l/
Calls
4 calls:
Slowest
12.0ms
(- (sqrt (fma -4 (* a c) (* b b))) b)
11.0ms
(/ (/ 1 a) (/ 2 (- (sqrt (fma -4 (* a c) (* b b))) b)))
2.0ms
(sqrt (fma -4 (* a c) (* b b)))
1.0ms
(fma -4 (* a c) (* b b))

series227.0ms

Calls
4 calls:
Slowest
94.0ms
(/ (/ 1 a) (/ 2 (- (sqrt (fma -4 (* a c) (* b b))) b)))
53.0ms
(- (sqrt (fma -4 (* a c) (* b b))) b)
46.0ms
(sqrt (fma -4 (* a c) (* b b)))
34.0ms
(fma -4 (* a c) (* b b))

simplify7.4s

Calls
80 calls:
Slowest
556.0ms
(/ 1 (/ 2 (- (* (sqrt (fma -4 (* a c) (* b b))) (sqrt (fma -4 (* a c) (* b b)))) (* b b))))
479.0ms
(/ 1 (/ 2 (- (* (sqrt (fma -4 (* a c) (* b b))) (sqrt (fma -4 (* a c) (* b b)))) (* b b))))
431.0ms
(/ (/ 1 a) (/ 2 (- (sqrt (fma -4 (* a c) (* b b))) b)))
425.0ms
(/ (/ 1 a) (/ 2 (- (sqrt (fma -4 (* a c) (* b b))) b)))
346.0ms
(/ (sqrt (/ 1 a)) (/ 2 (- (pow (sqrt (fma -4 (* a c) (* b b))) 3) (pow b 3))))

prune1.3s

Pruning

10 alts after pruning (8 fresh and 2 done)

Merged error: 3.4b

regimes420.0ms

Accuracy

83.8% (4.5b remaining)

Error of 10.3b against oracle of 5.8b and baseline of 33.8b

bsearch216.0ms

end0.0ms

sample4.7s

Algorithm
intervals
Results
1.8s1116×body2560valid
905.0ms5803×body80valid
667.0ms878×body1280valid
476.0ms2895×body80nan
275.0ms470×body640valid
171.0ms117×body5120valid
118.0ms216×body320valid
32.0ms128×body160valid