Average Error: 60.4 → 59.2
Time: 56.8s
Precision: 64
Internal Precision: 128
\[\cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
\[\cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \left(\log \left(\sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) + \log \left(\sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]

Error

Bits error versus a

Derivation

  1. Initial program 60.4

    \[\cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  2. Using strategy rm
  3. Applied add-log-exp59.5

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

    \[\leadsto \cos^{-1} \left({\left(\log \left(e^{\color{blue}{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  6. Applied exp-prod59.5

    \[\leadsto \cos^{-1} \left({\left(\log \color{blue}{\left({\left(e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}\right)}^{\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}\right)}\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  7. Applied log-pow59.2

    \[\leadsto \cos^{-1} \left({\color{blue}{\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \left(e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}\right)\right)}}^{\left(\log_* (1 + a)\right)}\right)\]
  8. Using strategy rm
  9. Applied add-sqr-sqrt59.2

    \[\leadsto \cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \color{blue}{\left(\sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}} \cdot \sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  10. Applied log-prod59.2

    \[\leadsto \cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \color{blue}{\left(\log \left(\sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right) + \log \left(\sqrt{e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}}\right)\right)}\right)}^{\left(\log_* (1 + a)\right)}\right)\]
  11. Final simplification59.2

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

Reproduce

herbie shell --seed 2019008 +o rules:numerics
(FPCore (a)
  :name "Random Jason Timeout Test 012"
  (acos (pow (fmod (cosh a) (* a a)) (log1p a))))

Details

Time bar (total: 54.9s)Debug log

sample1.5s

Algorithm
intervals

simplify14.0ms

Counts
1 → 1
Calls

1 calls. Slowest were:

13.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

prune8.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 59.6b

localize56.0ms

Local error

Found 2 expressions with local error:

58.4b
(fmod (cosh a) (* a a))
2.0b
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
2 → 19
Calls

2 calls. Slowest were:

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

series12.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

9.0ms
(fmod (cosh a) (* a a))
2.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

simplify33.0ms

Counts
6 → 25
Calls

6 calls. Slowest were:

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

prune385.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 58.3b

localize13.0ms

Local error

Found 3 expressions with local error:

58.4b
(fmod (cosh a) (* a a))
11.4b
(log (exp (fmod (cosh a) (* a a))))
2.0b
(acos (pow (log (exp (fmod (cosh a) (* a a)))) (log1p a)))

rewrite5.0ms

Algorithm
rewrite-expression-head
Counts
3 → 36
Calls

3 calls. Slowest were:

4.0ms
(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))

series7.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

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

simplify115.0ms

Counts
16 → 45
Calls

16 calls. Slowest were:

18.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
16.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
16.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))

prune692.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 58.3b

localize18.0ms

Local error

Found 4 expressions with local error:

58.4b
(fmod (cosh a) (* a a))
58.4b
(fmod (cosh a) (* a a))
9.8b
(log (exp (sqrt (fmod (cosh a) (* a a)))))
2.0b
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))

rewrite9.0ms

Algorithm
rewrite-expression-head
Counts
4 → 48
Calls

4 calls. Slowest were:

5.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
2.0ms
(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))

series31.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

19.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
5.0ms
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))
3.0ms
(fmod (cosh a) (* a a))
3.0ms
(fmod (cosh a) (* a a))

simplify246.0ms

Counts
22 → 60
Calls

22 calls. Slowest were:

20.0ms
(log (* (cbrt (exp (sqrt (fmod (cosh a) (* a a))))) (cbrt (exp (sqrt (fmod (cosh a) (* a a)))))))
17.0ms
(log (sqrt (exp (sqrt (fmod (cosh a) (* a a))))))
17.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))

prune988.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 58.3b

localize12.0ms

Local error

Found 4 expressions with local error:

58.4b
(fmod (cosh a) (* a a))
58.4b
(fmod (cosh a) (* a a))
9.8b
(log (exp (sqrt (fmod (cosh a) (* a a)))))
1.0b
(- (/ PI 2) (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))

rewrite16.0ms

Algorithm
rewrite-expression-head
Counts
4 → 71
Calls

4 calls. Slowest were:

8.0ms
(- (/ PI 2) (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))
5.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
0.0ms
(fmod (cosh a) (* a a))

series84.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

59.0ms
(- (/ PI 2) (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))
18.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
4.0ms
(fmod (cosh a) (* a a))
3.0ms
(fmod (cosh a) (* a a))

simplify1.2s

Counts
53 → 83
Calls

53 calls. Slowest were:

63.0ms
(fma PI (/ 1 2) (- (* (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) (* (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))))))
54.0ms
(fma (- (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))) (* (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))))) (* (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) (* (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) (cbrt (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))))))
52.0ms
(fma (- (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))) 1 (* (asin (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a))) 1))

prune1.2s

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 58.3b

regimes336.0ms

Accuracy

0% (0.1b remaining)

Error of 59.2b against oracle of 59.1b and baseline of 59.2b

bsearch4.0ms

end0.0ms

sample47.9s

Algorithm
intervals