Error in 1.3m

Runtime

Time bar (total: 1.3m)Debug log

start1.1s

Algorithm
intervals

setup384.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 59.6b

localize36.0ms

Local error

Found 4 expressions with local error:

4.3b
(- (exp (* (+ a b) eps)) 1)
3.8b
(- (exp (* a eps)) 1)
2.6b
(- (exp (* b eps)) 1)
0.2b
(* (- (exp (* a eps)) 1) (- (exp (* b eps)) 1))

rewrite65.0ms

Algorithm
rewrite-expression-head
Counts
4 → 67
Calls

4 calls. Slowest were:

39.0ms
(* (- (exp (* a eps)) 1) (- (exp (* b eps)) 1))
13.0ms
(- (exp (* b eps)) 1)
7.0ms
(- (exp (* (+ a b) eps)) 1)

series166.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

62.0ms
(- (exp (* (+ a b) eps)) 1)
50.0ms
(* (- (exp (* a eps)) 1) (- (exp (* b eps)) 1))
28.0ms
(- (exp (* a eps)) 1)

simplify5.0s

Counts
41 → 79
Calls

41 calls. Slowest were:

671.0ms
(* (+ (exp (* a eps)) 1) (+ (* (exp (* b eps)) (exp (* b eps))) (+ (* 1 1) (* (exp (* b eps)) 1))))
579.0ms
(* (* (* (- (exp (* a eps)) 1) (- (exp (* a eps)) 1)) (- (exp (* a eps)) 1)) (* (* (- (exp (* b eps)) 1) (- (exp (* b eps)) 1)) (- (exp (* b eps)) 1)))
541.0ms
(* (+ (exp (* a eps)) 1) (+ (exp (* b eps)) 1))

prune1.2s

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 47.2b

localize27.0ms

Local error

Found 4 expressions with local error:

4.3b
(- (exp (* (+ a b) eps)) 1)
2.6b
(- (exp (* b eps)) 1)
2.2b
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1))
1.0b
(/ (* eps (- (exp (* (+ a b) eps)) 1)) (* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1)))

rewrite89.0ms

Algorithm
rewrite-expression-head
Counts
4 → 81
Calls

4 calls. Slowest were:

48.0ms
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1))
27.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1)) (* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1)))
9.0ms
(- (exp (* (+ a b) eps)) 1)

series913.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

762.0ms
(/ (* eps (- (exp (* (+ a b) eps)) 1)) (* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1)))
87.0ms
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1))
41.0ms
(- (exp (* (+ a b) eps)) 1)

simplify10.5s

Counts
56 → 93
Calls

56 calls. Slowest were:

561.0ms
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- 1))
501.0ms
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- 1))
476.0ms
(* (+ (* (* (* a eps) (* a eps)) (+ (* eps (* 1/6 a)) 1/2)) (* a eps)) (- (exp (* b eps)) 1))

prune1.9s

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 1 expressions with local error:

0.0b
(+ (/ 1 a) (/ 1 b))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
1 → 16
Calls

1 calls. Slowest were:

4.0ms
(+ (/ 1 a) (/ 1 b))

series7.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

7.0ms
(+ (/ 1 a) (/ 1 b))

simplify28.0ms

Counts
10 → 19
Calls

10 calls. Slowest were:

5.0ms
(* (exp (/ 1 a)) (exp (/ 1 b)))
4.0ms
(+ (/ 1 b) (/ 1 a))
4.0ms
(+ (/ 1 b) (/ 1 a))

prune197.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0.0b

localize12.0ms

Local error

Found 4 expressions with local error:

30.2b
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))
4.1b
(- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b)))
0.3b
(* (/ 1 b) (/ 1 b))
0.3b
(* (/ 1 a) (/ 1 a))

rewrite43.0ms

Algorithm
rewrite-expression-head
Counts
4 → 163
Calls

4 calls. Slowest were:

16.0ms
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))
10.0ms
(- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b)))
6.0ms
(* (/ 1 b) (/ 1 b))

series70.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

34.0ms
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))
17.0ms
(- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b)))
11.0ms
(* (/ 1 a) (/ 1 a))

simplify20.4s

Counts
180 → 175
Calls

180 calls. Slowest were:

1.1s
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))
839.0ms
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))
756.0ms
(/ (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) (- (/ 1 a) (/ 1 b)))

prune1.7s

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 0b

regimes176.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (a b eps)
  :name "expq3 (problem 3.4.2)"
  :pre (and (< -1 eps) (< eps 1))

  :herbie-target
  (/ (+ a b) (* a b))

  (/ (* eps (- (exp (* (+ a b) eps)) 1)) (* (- (exp (* a eps)) 1) (- (exp (* b eps)) 1))))

Backtrace

partition: contract violation expected: list? given: 3.2662807095143 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