Average Error: 60.6 → 59.4
Time: 1.1m
Precision: 64
Internal Precision: 128
\[\cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
\[\cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \left(\log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}} \cdot \sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) + \log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]

Error

Bits error versus a

Derivation

  1. Initial program 60.6

    \[\cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  2. Initial simplification60.6

    \[\leadsto \cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  3. Using strategy rm
  4. Applied add-log-exp59.6

    \[\leadsto \cos^{-1} \left({\color{blue}{\left(\log \left(e^{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}\right)\right)}}^{\left(\log_* (1 + a)\right)}\right)\]
  5. Using strategy rm
  6. Applied add-sqr-sqrt59.6

    \[\leadsto \cos^{-1} \left({\left(\log \left(e^{\color{blue}{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  7. Applied exp-prod59.6

    \[\leadsto \cos^{-1} \left({\left(\log \color{blue}{\left({\left(e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}\right)}^{\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}\right)}\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  8. Applied log-pow59.3

    \[\leadsto \cos^{-1} \left({\color{blue}{\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \left(e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}\right)\right)}}^{\left(\log_* (1 + a)\right)}\right)\]
  9. Using strategy rm
  10. Applied add-cube-cbrt59.4

    \[\leadsto \cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \color{blue}{\left(\left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}} \cdot \sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) \cdot \sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  11. Applied log-prod59.4

    \[\leadsto \cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \color{blue}{\left(\log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}} \cdot \sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) + \log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  12. Final simplification59.4

    \[\leadsto \cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \left(\log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}} \cdot \sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) + \log \left(\sqrt[3]{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]

Reproduce

herbie shell --seed 2018362 
(FPCore (a)
  :name "Random Jason Timeout Test 012"
  (acos (pow (fmod (cosh a) (* a a)) (log1p a))))

Details

Time bar (total: 6.2s)Debug log

start2.4s

Algorithm
intervals

setup75.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 60.3b

localize39.0ms

Local error

Found 2 expressions with local error:

59.1b
(fmod (cosh a) (* a a))
2.6b
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

rewrite5.0ms

Algorithm
rewrite-expression-head
Counts
2 → 15
Calls

2 calls. Slowest were:

2.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))
1.0ms
(fmod (cosh a) (* a a))

series19.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

14.0ms
(fmod (cosh a) (* a a))
5.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

simplify50.0ms

Counts
6 → 21
Calls

6 calls. Slowest were:

15.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
11.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
8.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))

prune312.0ms

Pruning

5 alts after pruning (5 fresh and 0 done)

Merged error: 58.9b

localize12.0ms

Local error

Found 3 expressions with local error:

59.1b
(fmod (cosh a) (* a a))
11.1b
(log (exp (fmod (cosh a) (* a a))))
2.6b
(acos (pow (log (exp (fmod (cosh a) (* a a)))) (log1p a)))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
3 → 30
Calls

3 calls. Slowest were:

2.0ms
(log (exp (fmod (cosh a) (* a a))))
1.0ms
(acos (pow (log (exp (fmod (cosh a) (* a a)))) (log1p a)))
0.0ms
(fmod (cosh a) (* a a))

series14.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

7.0ms
(acos (pow (log (exp (fmod (cosh a) (* a a)))) (log1p a)))
3.0ms
(fmod (cosh a) (* a a))
3.0ms
(log (exp (fmod (cosh a) (* a a))))

simplify151.0ms

Counts
16 → 39
Calls

16 calls. Slowest were:

17.0ms
(log (* (cbrt (exp (fmod (cosh a) (* a a)))) (cbrt (exp (fmod (cosh a) (* a a))))))
17.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
17.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))

prune648.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 58.9b

localize33.0ms

Local error

Found 4 expressions with local error:

59.1b
(fmod (cosh a) (* a a))
59.1b
(fmod (cosh a) (* a a))
10.4b
(log (exp (sqrt (fmod (cosh a) (* a a)))))
2.6b
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
4 → 40
Calls

4 calls. Slowest were:

4.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
1.0ms
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))
0.0ms
(fmod (cosh a) (* a a))

series20.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

13.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
3.0ms
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))
2.0ms
(fmod (cosh a) (* a a))
2.0ms
(fmod (cosh a) (* a a))

simplify184.0ms

Counts
22 → 52
Calls

22 calls. Slowest were:

18.0ms
(sqrt (fmod (cosh a) (* a a)))
15.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
15.0ms
(sqrt (sqrt (fmod (cosh a) (* a a))))

prune812.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 58.9b

localize26.0ms

Local error

Found 4 expressions with local error:

59.1b
(fmod (cosh a) (* a a))
59.1b
(fmod (cosh a) (* a a))
59.1b
(fmod (cosh a) (* a a))
59.1b
(fmod (cosh a) (* a a))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
4 → 28
Calls

4 calls. Slowest were:

5.0ms
(fmod (cosh a) (* a a))
0.0ms
(fmod (cosh a) (* a a))
0.0ms
(fmod (cosh a) (* a a))

series8.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

2.0ms
(fmod (cosh a) (* a a))
2.0ms
(fmod (cosh a) (* a a))
2.0ms
(fmod (cosh a) (* a a))
2.0ms
(fmod (cosh a) (* a a))

simplify39.0ms

Counts
12 → 40
Calls

12 calls. Slowest were:

5.0ms
(fmod (cosh a) (pow a 2))
3.0ms
(fmod (cosh a) (pow a 2))
3.0ms
(fmod (cosh a) (pow a 2))

prune877.0ms

Pruning

11 alts after pruning (9 fresh and 2 done)

Merged error: 58.9b

regimes390.0ms

Accuracy

0% (0.1b remaining)

Error of 59.4b against oracle of 59.2b and baseline of 59.4b

bsearch2.0ms