Error in 11.6s

Runtime

Time bar (total: 11.6s)Debug log

start102.0ms

Algorithm
intervals

setup23.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 13.7b

localize20.0ms

Local error

Found 2 expressions with local error:

3.0b
(- (/ 1 (+ x 1)) (/ 1 x))
0.0b
(/ 1 (+ x 1))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
2 → 36
Calls

2 calls. Slowest were:

5.0ms
(- (/ 1 (+ x 1)) (/ 1 x))
1.0ms
(/ 1 (+ x 1))

series18.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

11.0ms
(- (/ 1 (+ x 1)) (/ 1 x))
6.0ms
(/ 1 (+ x 1))

simplify447.0ms

Counts
21 → 42
Calls

21 calls. Slowest were:

81.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
55.0ms
(- (+ (/ 1 (pow x 3)) (/ 1 x)) (/ 1 (pow x 2)))
53.0ms
(- (+ (/ 1 (pow x 3)) (/ 1 x)) (/ 1 (pow x 2)))

prune348.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

localize11.0ms

Local error

Found 2 expressions with local error:

0.4b
(/ -1 (* (+ x 1) x))
0.0b
(* (+ x 1) x)

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
2 → 26
Calls

2 calls. Slowest were:

5.0ms
(* (+ x 1) x)
2.0ms
(/ -1 (* (+ x 1) x))

series47.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

32.0ms
(* (+ x 1) x)
15.0ms
(/ -1 (* (+ x 1) x))

simplify332.0ms

Counts
12 → 32
Calls

12 calls. Slowest were:

118.0ms
(* (- (* x x) (* 1 1)) x)
49.0ms
(- 1 (+ x (/ 1 x)))
46.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))

prune280.0ms

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 0b

localize13.0ms

Local error

Found 2 expressions with local error:

0.1b
(/ (/ -1 (+ x 1)) x)
0.0b
(/ -1 (+ x 1))

rewrite6.0ms

Algorithm
rewrite-expression-head
Counts
2 → 32
Calls

2 calls. Slowest were:

5.0ms
(/ (/ -1 (+ x 1)) x)
0.0ms
(/ -1 (+ x 1))

series16.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

9.0ms
(/ (/ -1 (+ x 1)) x)
7.0ms
(/ -1 (+ x 1))

simplify374.0ms

Counts
15 → 38
Calls

15 calls. Slowest were:

72.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
67.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
46.0ms
(- (/ 1 (pow x 2)) (+ (/ 1 (pow x 3)) (/ 1 x)))

prune348.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0b

localize19.0ms

Local error

Found 4 expressions with local error:

14.6b
(cbrt (/ (/ -1 (+ x 1)) x))
14.6b
(cbrt (/ (/ -1 (+ x 1)) x))
14.6b
(cbrt (/ (/ -1 (+ x 1)) x))
0.4b
(* (cbrt (/ (/ -1 (+ x 1)) x)) (cbrt (/ (/ -1 (+ x 1)) x)))

rewrite16.0ms

Algorithm
rewrite-expression-head
Counts
4 → 72
Calls

4 calls. Slowest were:

10.0ms
(* (cbrt (/ (/ -1 (+ x 1)) x)) (cbrt (/ (/ -1 (+ x 1)) x)))
2.0ms
(cbrt (/ (/ -1 (+ x 1)) x))
1.0ms
(cbrt (/ (/ -1 (+ x 1)) x))

series313.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

91.0ms
(* (cbrt (/ (/ -1 (+ x 1)) x)) (cbrt (/ (/ -1 (+ x 1)) x)))
80.0ms
(cbrt (/ (/ -1 (+ x 1)) x))
76.0ms
(cbrt (/ (/ -1 (+ x 1)) x))

simplify3.5s

Counts
53 → 84
Calls

53 calls. Slowest were:

342.0ms
(- (+ (* 5/9 (* (pow (pow x 4) 1/3) (pow (cbrt -1) 2))) (* (pow (/ 1 (pow x 2)) 1/3) (pow (cbrt -1) 2))) (* 2/3 (* (pow x 1/3) (pow (cbrt -1) 2))))
307.0ms
(- (+ (* 5/9 (* (pow (/ 1 (pow x 10)) 1/3) (pow (cbrt -1) 2))) (* (pow (/ 1 (pow x 4)) 1/3) (pow (cbrt -1) 2))) (* 2/3 (* (pow (/ 1 (pow x 7)) 1/3) (pow (cbrt -1) 2))))
266.0ms
(- (+ (exp (* 1/3 (+ (* 2 (log (/ -1 x))) (log -1)))) (* 2/9 (/ (exp (* 1/3 (+ (* 2 (log (/ -1 x))) (log -1)))) (pow x 2)))) (* 1/3 (/ (exp (* 1/3 (+ (* 2 (log (/ -1 x))) (log -1)))) x)))

prune1.1s

Pruning

6 alts after pruning (3 fresh and 3 done)

Merged error: 0b

regimes62.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x)
  :name "2frac (problem 3.3.1)"
  (- (/ 1 (+ x 1)) (/ 1 x)))

Backtrace

partition: contract violation expected: list? given: 0.07094812031259015 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