Error in 22.8s

Runtime

Time bar (total: 22.8s)Debug logProfile

start304.0ms

Algorithm
intervals

setup39.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 59.9b

localize13.0ms

Local error

Found 2 expressions with local error:

6.1b
(log (- 1 x))
0.0b
(/ (log (- 1 x)) (log1p x))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
2 → 53
Calls

2 calls. Slowest were:

5.0ms
(/ (log (- 1 x)) (log1p x))
1.0ms
(log (- 1 x))

series123.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

99.0ms
(/ (log (- 1 x)) (log1p x))
24.0ms
(log (- 1 x))

simplify1.9s

Counts
47 → 59
Calls

47 calls. Slowest were:

320.0ms
(- (log -1) (+ (log (/ 1 x)) (+ (* 1/2 (/ 1 (pow x 2))) (/ 1 x))))
279.0ms
(- (+ (log (/ -1 x)) (+ (* 1/2 (/ 1 (pow x 2))) (/ 1 x))))
267.0ms
(- (+ x (+ (* 1/3 (pow x 3)) (* 1/2 (pow x 2)))))

prune264.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.0b

localize7.0ms

Local error

Found 1 expressions with local error:

0.0b
(/ (log1p (- x)) (log1p x))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
1 → 29
Calls

1 calls. Slowest were:

5.0ms
(/ (log1p (- x)) (log1p x))

series105.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

105.0ms
(/ (log1p (- x)) (log1p x))

simplify904.0ms

Counts
28 → 32
Calls

28 calls. Slowest were:

234.0ms
(- (+ (/ (log (/ -1 x)) (* x (pow (- (log -1) (log (/ -1 x))) 2))) (/ 1 (* (pow x 2) (pow (- (log -1) (log (/ -1 x))) 2)))) (+ (/ (log (/ -1 x)) (- (log -1) (log (/ -1 x)))) (+ (/ (log (/ -1 x)) (* (pow x 2) (pow (- (log -1) (log (/ -1 x))) 3))) (+ (/ 1 (* x (- (log -1) (log (/ -1 x))))) (+ (* 1/2 (/ (log (/ -1 x)) (* (pow x 2) (pow (- (log -1) (log (/ -1 x))) 2)))) (* 1/2 (/ 1 (* (pow x 2) (- (log -1) (log (/ -1 x)))))))))))
209.0ms
(- (+ (* 2 (/ 1 (* (pow (log (/ 1 x)) 2) (pow x 2)))) (+ (* 2 (/ 1 (* (log (/ 1 x)) x))) (+ (* 1/2 (/ (log -1) (* (pow (log (/ 1 x)) 2) (pow x 2)))) 1))) (+ (/ (log -1) (* (pow (log (/ 1 x)) 3) (pow x 2))) (+ (/ (log -1) (log (/ 1 x))) (/ (log -1) (* (pow (log (/ 1 x)) 2) x)))))
207.0ms
(- (+ x (+ (* 1/2 (pow x 2)) 1)))

prune237.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize9.0ms

Local error

Found 1 expressions with local error:

0.0b
(fma x (* -1/2 x) (- -1 x))

rewrite0.0ms

Algorithm
rewrite-expression-head
Counts
1 → 10
Calls

1 calls. Slowest were:

0.0ms
(fma x (* -1/2 x) (- -1 x))

series11.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

10.0ms
(fma x (* -1/2 x) (- -1 x))

simplify533.0ms

Counts
3 → 13
Calls

3 calls. Slowest were:

186.0ms
(- (+ x (+ (* 1/2 (pow x 2)) 1)))
184.0ms
(- (+ x (+ (* 1/2 (pow x 2)) 1)))
161.0ms
(- (+ x (+ (* 1/2 (pow x 2)) 1)))

prune126.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

localize23.0ms

Local error

Found 4 expressions with local error:

0.7b
(cbrt (log1p x))
0.7b
(cbrt (log1p x))
0.7b
(cbrt (log1p x))
0.5b
(* (cbrt (log1p x)) (cbrt (log1p x)))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
4 → 69
Calls

4 calls. Slowest were:

5.0ms
(* (cbrt (log1p x)) (cbrt (log1p x)))
1.0ms
(cbrt (log1p x))
1.0ms
(cbrt (log1p x))

series282.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

79.0ms
(* (cbrt (log1p x)) (cbrt (log1p x)))
75.0ms
(cbrt (log1p x))
70.0ms
(cbrt (log1p x))

simplify4.9s

Counts
41 → 81
Calls

41 calls. Slowest were:

978.0ms
(- (+ (* 1/6 (* (pow (/ -1 (pow (log (/ 1 x)) 2)) 1/3) (/ 1 (pow x 2)))) (pow (- (log (/ 1 x))) 1/3)) (+ (* 1/3 (* (pow (/ -1 (pow (log (/ 1 x)) 2)) 1/3) (/ 1 x))) (* 1/9 (* (pow (/ -1 (pow (log (/ 1 x)) 5)) 1/3) (/ 1 (pow x 2))))))
565.0ms
(- (+ (* 1/6 (* (pow (/ -1 (pow (log (/ 1 x)) 2)) 1/3) (/ 1 (pow x 2)))) (pow (- (log (/ 1 x))) 1/3)) (+ (* 1/3 (* (pow (/ -1 (pow (log (/ 1 x)) 2)) 1/3) (/ 1 x))) (* 1/9 (* (pow (/ -1 (pow (log (/ 1 x)) 5)) 1/3) (/ 1 (pow x 2))))))
552.0ms
(- (+ (* 1/3 (* (pow (/ 1 (log (/ 1 x))) 1/3) (/ 1 (pow x 2)))) (pow (pow (log (/ 1 x)) 2) 1/3)) (+ (* 1/9 (* (pow (/ 1 (pow (log (/ 1 x)) 4)) 1/3) (/ 1 (pow x 2)))) (* 2/3 (* (pow (/ 1 (log (/ 1 x))) 1/3) (/ 1 x)))))

prune840.0ms

Pruning

4 alts after pruning (1 fresh and 3 done)

Merged error: 0b

regimes40.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 +o rules:numerics
(FPCore (x)
  :name "qlog (example 3.10)"
  :pre (and (< -1 x) (< x 1))

  :herbie-target
  (- (+ (+ (+ 1 x) (/ (* x x) 2)) (* 5/12 (pow x 3))))

  (/ (log (- 1 x)) (log (+ 1 x))))

Backtrace

partition: contract violation expected: list? given: 0.021658082813311306 argument position: 2nd other arguments...: #<procedure:ordinary-value?>LC
partition/home/p92/racket/collects/racket/list.rkt5550
errors-score/data/pavpan/nightlies/herbie/develop/src/points.rkt3220
for-loop/data/pavpan/nightlies/herbie/develop/src/sandbox.rkt7512
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128
run/home/p92/racket/share/pkgs/profile-lib/main.rkt392
profile-thunk16/home/p92/racket/share/pkgs/profile-lib/main.rkt90
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128