Error in 11.6s

Runtime

Time bar (total: 11.6s)Debug log

start108.0ms

Algorithm
intervals

setup35.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 39.3b

localize13.0ms

Local error

Found 1 expressions with local error:

4.5b
(log (+ x 1))

rewrite2.0ms

Algorithm
rewrite-expression-head
Counts
1 → 14
Calls

1 calls. Slowest were:

2.0ms
(log (+ x 1))

series58.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

58.0ms
(log (+ x 1))

simplify618.0ms

Counts
9 → 17
Calls

9 calls. Slowest were:

321.0ms
(- (+ (/ 1 x) (log -1)) (+ (log (/ -1 x)) (* 1/2 (/ 1 (pow x 2)))))
156.0ms
(- (/ 1 x) (+ (log (/ 1 x)) (* 1/2 (/ 1 (pow x 2)))))
106.0ms
(- (+ x (* 1/3 (pow x 3))) (* 1/2 (pow x 2)))

prune175.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize27.0ms

Local error

Found 3 expressions with local error:

0.3b
(* x 1/3)
0.1b
(* (- (* x 1/3) 1/2) (* x x))
0.0b
(+ (* (- (* x 1/3) 1/2) (* x x)) x)

rewrite24.0ms

Algorithm
rewrite-expression-head
Counts
3 → 35
Calls

3 calls. Slowest were:

13.0ms
(+ (* (- (* x 1/3) 1/2) (* x x)) x)
10.0ms
(* (- (* x 1/3) 1/2) (* x x))
0.0ms
(* x 1/3)

series78.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

46.0ms
(* (- (* x 1/3) 1/2) (* x x))
21.0ms
(+ (* (- (* x 1/3) 1/2) (* x x)) x)
11.0ms
(* x 1/3)

simplify1.8s

Counts
16 → 44
Calls

16 calls. Slowest were:

461.0ms
(* (- (pow (* x 1/3) 3) (pow 1/2 3)) (* x x))
426.0ms
(* (- (* (* x 1/3) (* x 1/3)) (* 1/2 1/2)) (* x x))
363.0ms
(* (* (* (- (* x 1/3) 1/2) (- (* x 1/3) 1/2)) (- (* x 1/3) 1/2)) (* (* (* x x) (* x x)) (* x x)))

prune505.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

localize11.0ms

Local error

Found 4 expressions with local error:

4.5b
(log (sqrt (+ x 1)))
4.5b
(log (sqrt (+ x 1)))
0.0b
(sqrt (+ x 1))
0.0b
(sqrt (+ x 1))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
4 → 64
Calls

4 calls. Slowest were:

3.0ms
(log (sqrt (+ x 1)))
2.0ms
(log (sqrt (+ x 1)))
1.0ms
(sqrt (+ x 1))

series125.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

47.0ms
(log (sqrt (+ x 1)))
42.0ms
(log (sqrt (+ x 1)))
18.0ms
(sqrt (+ x 1))

simplify552.0ms

Counts
42 → 76
Calls

42 calls. Slowest were:

122.0ms
(- (+ (* 1/2 x) (* 1/6 (pow x 3))) (* 1/4 (pow x 2)))
101.0ms
(- (+ (* 1/2 x) (* 1/6 (pow x 3))) (* 1/4 (pow x 2)))
72.0ms
(- (+ (* 1/2 x) 1) (* 1/8 (pow x 2)))

prune712.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

localize49.0ms

Local error

Found 4 expressions with local error:

4.5b
(log (fabs (cbrt (+ 1 x))))
4.5b
(log (sqrt (+ x 1)))
4.3b
(log (sqrt (cbrt (+ x 1))))
0.2b
(cbrt (+ 1 x))

rewrite9.0ms

Algorithm
rewrite-expression-head
Counts
4 → 64
Calls

4 calls. Slowest were:

4.0ms
(log (sqrt (cbrt (+ x 1))))
2.0ms
(log (sqrt (+ x 1)))
1.0ms
(log (fabs (cbrt (+ 1 x))))

series254.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

88.0ms
(log (fabs (cbrt (+ 1 x))))
80.0ms
(log (sqrt (cbrt (+ x 1))))
47.0ms
(log (sqrt (+ x 1)))

simplify1.0s

Counts
42 → 76
Calls

42 calls. Slowest were:

242.0ms
(- (+ (* 1/6 (/ 1 x)) (* 1/6 (log -1))) (+ (* 1/6 (log (/ -1 x))) (* 1/12 (/ 1 (pow x 2)))))
160.0ms
(- (+ (exp (* 1/3 (- (log -1) (log (/ -1 x))))) (* 1/3 (/ (exp (* 1/3 (- (log -1) (log (/ -1 x))))) x))) (* 1/9 (/ (exp (* 1/3 (- (log -1) (log (/ -1 x))))) (pow x 2))))
137.0ms
(- (+ (log (pow (/ 1 x) -1/6)) (* 1/6 (/ 1 x))) (* 1/12 (/ 1 (pow x 2))))

prune923.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

regimes54.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x)
  :name "ln(1 + x)"

  :herbie-target
  (if (== (+ 1 x) 1) x (/ (* x (log (+ 1 x))) (- (+ 1 x) 1)))

  (log (+ 1 x)))

Backtrace

partition: contract violation expected: list? given: 0.166973549003442 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