Error in 10.7s

Runtime

Time bar (total: 10.7s)Debug logProfile

start199.0ms

Algorithm
intervals

setup16.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 0.5b

localize29.0ms

Local error

Found 2 expressions with local error:

0.5b
(/ (exp a) (+ (exp a) (exp b)))
0.0b
(+ (exp a) (exp b))

rewrite12.0ms

Algorithm
rewrite-expression-head
Counts
2 → 52
Calls

2 calls. Slowest were:

6.0ms
(/ (exp a) (+ (exp a) (exp b)))
5.0ms
(+ (exp a) (exp b))

series98.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

61.0ms
(/ (exp a) (+ (exp a) (exp b)))
37.0ms
(+ (exp a) (exp b))

simplify563.0ms

Counts
44 → 58
Calls

44 calls. Slowest were:

238.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
118.0ms
(+ (* (exp a) (exp a)) (- (* (exp b) (exp b)) (* (exp a) (exp b))))
39.0ms
(- (+ (* 1/4 a) 1/2) (* 1/4 b))

prune542.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.2b

localize5.0ms

Local error

Found 2 expressions with local error:

0.5b
(/ (exp a) (+ (exp b) (exp a)))
0.0b
(+ (exp b) (exp a))

rewrite10.0ms

Algorithm
rewrite-expression-head
Counts
2 → 52
Calls

2 calls. Slowest were:

6.0ms
(/ (exp a) (+ (exp b) (exp a)))
3.0ms
(+ (exp b) (exp a))

series85.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

47.0ms
(/ (exp a) (+ (exp b) (exp a)))
38.0ms
(+ (exp b) (exp a))

simplify660.0ms

Counts
44 → 58
Calls

44 calls. Slowest were:

260.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp b) (exp a)) (+ (exp b) (exp a))) (+ (exp b) (exp a))))
120.0ms
(+ (* (exp b) (exp b)) (- (* (exp a) (exp a)) (* (exp b) (exp a))))
37.0ms
(- (+ (* 1/4 a) 1/2) (* 1/4 b))

prune470.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.2b

localize8.0ms

Local error

Found 1 expressions with local error:

0.0b
(/ (exp a) (+ a (+ b 2)))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
1 → 31
Calls

1 calls. Slowest were:

3.0ms
(/ (exp a) (+ a (+ b 2)))

series64.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

64.0ms
(/ (exp a) (+ a (+ b 2)))

simplify577.0ms

Counts
30 → 34
Calls

30 calls. Slowest were:

141.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ a (+ b 2)) (+ a (+ b 2))) (+ a (+ b 2))))
137.0ms
(+ (* a a) (- (* (+ b 2) (+ b 2)) (* a (+ b 2))))
41.0ms
(- (+ (* 1/4 a) 1/2) (* 1/4 b))

prune332.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.2b

localize6.0ms

Local error

Found 0 expressions with local error:

rewrite0.0ms

Algorithm
rewrite-expression-head
Counts
0 → 0
Calls

0 calls. Slowest were:

series0.0ms

Counts
0 → 0
Calls

0 calls. Slowest were:

simplify0.0ms

Counts
0 → 0
Calls

0 calls. Slowest were:

prune0.0ms

Pruning

3 alts after pruning (0 fresh and 3 done)

Merged error: 0.2b

regimes120.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 +o rules:numerics
(FPCore (a b)
  :name "Quotient of sum of exps"

  :herbie-target
  (/ 1 (+ 1 (exp (- b a))))

  (/ (exp a) (+ (exp a) (exp b))))

Backtrace

partition: contract violation expected: list? given: 0.6620251136856031 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