Average Error: 60.4 → 59.1
Time: 56.3s
Precision: 64
Internal Precision: 128
\[\cos^{-1} \left({\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]
\[\cos^{-1} \left({\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \left(e^{\sqrt{\sqrt[3]{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right) \cdot \left(\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right) \cdot \left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)\right)}}}\right)\right)}^{\left(\log_* (1 + a)\right)}\right)\]

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-exp59.4

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

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

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

    \[\leadsto \cos^{-1} \left({\color{blue}{\left(\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)} \cdot \log \left(e^{\sqrt{\left(\left(\cosh a\right) \bmod \left(a \cdot a\right)\right)}}\right)\right)}}^{\left(\log_* (1 + a)\right)}\right)\]
  8. Using strategy rm
  9. Applied add-cbrt-cube59.1

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

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

Reproduce

herbie shell --seed 2019007 
(FPCore (a)
  :name "Random Jason Timeout Test 012"
  (acos (pow (fmod (cosh a) (* a a)) (log1p a))))

Details

Time bar (total: 54.2s)Debug log

sample1.8s

Algorithm
intervals

simplify17.0ms

Counts
1 → 1
Calls

1 calls. Slowest were:

16.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

prune10.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 60.6b

localize19.0ms

Local error

Found 2 expressions with local error:

59.6b
(fmod (cosh a) (* a a))
2.5b
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
2 → 15
Calls

2 calls. Slowest were:

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

series11.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

8.0ms
(fmod (cosh a) (* a a))
3.0ms
(acos (pow (fmod (cosh a) (* a a)) (log1p a)))

simplify43.0ms

Counts
6 → 21
Calls

6 calls. Slowest were:

18.0ms
(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)))

prune301.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 59.2b

localize11.0ms

Local error

Found 3 expressions with local error:

59.6b
(fmod (cosh a) (* a a))
10.3b
(log (exp (fmod (cosh a) (* a a))))
2.5b
(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))

series15.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

7.0ms
(log (exp (fmod (cosh a) (* a a))))
5.0ms
(acos (pow (log (exp (fmod (cosh a) (* a a)))) (log1p a)))
2.0ms
(fmod (cosh a) (* a a))

simplify105.0ms

Counts
16 → 39
Calls

16 calls. Slowest were:

18.0ms
(log (* (cbrt (exp (fmod (cosh a) (* a a)))) (cbrt (exp (fmod (cosh a) (* a a))))))
16.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))
15.0ms
(log (sqrt (exp (fmod (cosh a) (* a a)))))

prune526.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 59.2b

localize15.0ms

Local error

Found 4 expressions with local error:

59.6b
(fmod (cosh a) (* a a))
59.6b
(fmod (cosh a) (* a a))
9.5b
(log (exp (sqrt (fmod (cosh a) (* a a)))))
2.5b
(acos (pow (* (sqrt (fmod (cosh a) (* a a))) (log (exp (sqrt (fmod (cosh a) (* a a)))))) (log1p a)))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
4 → 40
Calls

4 calls. Slowest were:

2.0ms
(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))

series22.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

13.0ms
(log (exp (sqrt (fmod (cosh a) (* a a)))))
4.0ms
(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))

simplify152.0ms

Counts
22 → 52
Calls

22 calls. Slowest were:

13.0ms
(sqrt (sqrt (fmod (cosh a) (* a a))))
13.0ms
(sqrt (fmod (cosh a) (* a a)))
12.0ms
(acos (pow (fmod (cosh a) (pow a 2)) (log1p a)))

prune947.0ms

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 59.2b

localize24.0ms

Local error

Found 4 expressions with local error:

59.6b
(fmod (cosh a) (* a a))
59.6b
(fmod (cosh a) (* a a))
59.6b
(fmod (cosh a) (* a a))
59.6b
(fmod (cosh a) (* a a))

rewrite1.0ms

Algorithm
rewrite-expression-head
Counts
4 → 28
Calls

4 calls. Slowest were:

0.0ms
(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))

simplify33.0ms

Counts
12 → 40
Calls

12 calls. Slowest were:

4.0ms
(fmod (cosh a) (pow a 2))
3.0ms
(fmod (cosh a) (pow a 2))
3.0ms
(fmod (cosh a) (pow a 2))

prune685.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 59.2b

regimes445.0ms

Accuracy

0% (0.1b remaining)

Error of 59.1b against oracle of 59.0b and baseline of 59.1b

bsearch2.0ms

end0.0ms

sample49.1s

Algorithm
intervals