This file is indexed.

/usr/share/doc/mummer-doc/differences.README is in mummer-doc 3.22~dfsg-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
-- RUNTIME COMPARISON --
Compute mum candidates of length >= 100.
Result is identical for both programs.
 
			mummer3:		mummer2:

Ecoli K12/
Ecoli 0157: 		14 sec/66 MB		17 sec/133 MB

Ecoli 0157/
Ecoli K12: 		14 sec/77 MB		17 sec/155 MB

S cerevisae/
S pombe			42 sec/172 MB		50 sec/348 MB

S pombe/
S cerevisae		41 sec/176 MB		52 sec/358 MB



-- CORRECTNESS COMPARISON --
Consider the two files

> N25
NNNNNNNNNNNNNNNNNNNNNNNNN

and nn.query

> n18
nnnnnnnnnnnnnnnnnn

------------------ First example:---------------
mummer3 -l 5 Data/nn.query Data/nn.subject
> N25
       1         1        18
       1         2        18
       1         3        18
       1         4        18
       1         5        18
       1         6        18
       1         7        18
       1         8        18

mummer2 -l 5 Data/nn.query Data/nn.subject
> N25
       1         1        18

I think the result of mummer3 is correct, since the 
string n18 occurs exactly once in n18. It occurs 8
times in N25. hence 8 MUM-candidates are reported.

---- second example -----

mummer3.x -l 5 Data/nn.subject Data/nn.query
> n18

Bigmum.sh  -l 5 Data/nn.subject Data/nn.query
> n18
New string is suffix of reference string
       8         1        18

Here n18 occurs several times in the N25, hence it is 
not a MUM-candidates and so nothing is to be reported.
Thus the result of mummer3 is correct.