Details

Time bar (total: 19.4s)

sample55.0ms

Algorithm
intervals
Results
22.0ms514×body80valid

simplify3.4s

Counts
1 → 1
Iterations

Useful iterations: 4 (100.0ms)

IterNodesCost
01113
12113
25213
317113
434612
558612
669812
780512
8104212
9122512
10122812
done122812

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 6.6b

localize10.0ms

Local error

Found 3 expressions with local error:

0.0b
(- (* z z) t)
0.0b
(- (* x x) (* (* y 4.0) (- (* z z) t)))
6.2b
(* (* y 4.0) (- (* z z) t))

rewrite71.0ms

Algorithm
rewrite-expression-head
Rules
16×prod-diff
11×add-sqr-sqrt
10×distribute-rgt-in distribute-lft-in associate--r+
add-cube-cbrt *-un-lft-identity
pow1 add-exp-log add-cbrt-cube
add-log-exp
sub-neg
associate-*r*
expm1-log1p-u flip3-- pow-prod-down prod-exp flip-- cbrt-unprod log1p-expm1-u
fma-neg diff-log associate-*r/ difference-of-squares
associate-*l* *-commutative
Counts
3 → 78
Calls
3 calls:
10.0ms
(- (* z z) t)
17.0ms
(- (* x x) (* (* y 4.0) (- (* z z) t)))
42.0ms
(* (* y 4.0) (- (* z z) t))

series270.0ms

Counts
3 → 9
Calls
3 calls:
32.0ms
(- (* z z) t)
135.0ms
(- (* x x) (* (* y 4.0) (- (* z z) t)))
103.0ms
(* (* y 4.0) (- (* z z) t))

simplify1.6s

Counts
87 → 87
Iterations

Useful iterations: done (1.6s)

IterNodesCost
01481288
13901137
21270994
done5001966

prune355.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 3.8b

localize11.0ms

Local error

Found 2 expressions with local error:

0.0b
(- t (pow z 2))
6.2b
(* (* y 4.0) (- t (pow z 2)))

rewrite122.0ms

Algorithm
rewrite-expression-head
Rules
72×prod-diff
58×add-sqr-sqrt
50×*-un-lft-identity
46×add-cube-cbrt
29×unpow-prod-down
26×distribute-rgt-in distribute-lft-in
11×unpow2 sqr-pow
associate-*r* difference-of-squares
pow1 add-exp-log add-cbrt-cube
add-log-exp
sub-neg fma-neg pow-prod-down prod-exp cbrt-unprod
expm1-log1p-u flip3-- associate-*r/ flip-- log1p-expm1-u distribute-lft-out--
diff-log associate-*l* *-commutative
Counts
2 → 125
Calls
2 calls:
29.0ms
(- t (pow z 2))
80.0ms
(* (* y 4.0) (- t (pow z 2)))

series191.0ms

Counts
2 → 6
Calls
2 calls:
42.0ms
(- t (pow z 2))
149.0ms
(* (* y 4.0) (- t (pow z 2)))

simplify1.8s

Counts
131 → 131
Iterations

Useful iterations: done (1.8s)

IterNodesCost
02183431
15102500
213671887
done50011538

prune279.0ms

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 3.8b

localize10.0ms

Local error

Found 1 expressions with local error:

0.0b
(fma x x (* t (* y 4.0)))

rewrite1.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-exp-log add-sqr-sqrt expm1-log1p-u add-cube-cbrt *-un-lft-identity add-cbrt-cube fma-udef log1p-expm1-u add-log-exp
Counts
1 → 10
Calls
1 calls:
0.0ms
(fma x x (* t (* y 4.0)))

series63.0ms

Counts
1 → 3
Calls
1 calls:
63.0ms
(fma x x (* t (* y 4.0)))

simplify4.9s

Counts
13 → 13
Iterations

Useful iterations: 3 (56.0ms)

IterNodesCost
022138
135135
273135
3221119
4803119
54362119
done5000119

prune62.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 3.8b

localize12.0ms

Local error

Found 4 expressions with local error:

0.1b
(* (* y 4.0) (sqrt (- (* z z) t)))
0.2b
(* (* (* y 4.0) (sqrt (- (* z z) t))) (sqrt (- (* z z) t)))
6.2b
(sqrt (- (* z z) t))
6.2b
(sqrt (- (* z z) t))

rewrite297.0ms

Algorithm
rewrite-expression-head
Rules
20×pow1
18×add-exp-log sqrt-div add-cbrt-cube
16×add-sqr-sqrt sqrt-prod
14×associate-*r*
10×add-cube-cbrt *-un-lft-identity associate-*r/
flip3-- pow-prod-down prod-exp flip-- cbrt-unprod
expm1-log1p-u frac-times log1p-expm1-u add-log-exp difference-of-squares
rem-sqrt-square sqrt-pow1 pow1/2 associate-*l* associate-*l/ *-commutative
Counts
4 → 97
Calls
4 calls:
49.0ms
(* (* y 4.0) (sqrt (- (* z z) t)))
213.0ms
(* (* (* y 4.0) (sqrt (- (* z z) t))) (sqrt (- (* z z) t)))
16.0ms
(sqrt (- (* z z) t))
16.0ms
(sqrt (- (* z z) t))

series338.0ms

Counts
4 → 12
Calls
4 calls:
87.0ms
(* (* y 4.0) (sqrt (- (* z z) t)))
104.0ms
(* (* (* y 4.0) (sqrt (- (* z z) t))) (sqrt (- (* z z) t)))
72.0ms
(sqrt (- (* z z) t))
74.0ms
(sqrt (- (* z z) t))

simplify2.5s

Counts
109 → 109
Iterations

Useful iterations: done (2.5s)

IterNodesCost
01421771
13851408
213431175
done50001169

prune464.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 3.8b

regimes916.0ms

Accuracy

75.5% (0.8b remaining)

Error of 3.6b against oracle of 2.7b and baseline of 6.1b

bsearch1.0ms

simplify3.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
02134
12634
done2634

end0.0ms

sample1.6s

Algorithm
intervals
Results
702.0ms15750×body80valid