If for some reason you don't feel like writing your own XSB programs, there are several sample XSB programs in the directory: $XSB_DIR/examples. All contain source code.
The entry predicates of all the programs in that directory are given the names demo/0 (which prints out results) and go/0 (which does not print results).2.2Hence, a sample session might look like (the actual times shown below may vary and some extra information is given using comments after the % character):
my_favourite_prompt> cd $XSB_DIR/examples
my_favourite_prompt> $XSB_DIR/bin/xsb
XSB Version 2.0 (Gouden Carolus) of June 27, 1999
[i586-pc-linux-gnu; mode: optimal; engine: slg-wam; scheduling: batched]
| ?- [queens].
[queens loaded]
yes
| ?- demo.
% ...... output from queens program .......
Time used: 0.4810 sec
yes
| ?- statistics.
memory (total) 1906488 bytes: 203452 in use, 1703036 free
permanent space 202552 bytes
glob/loc space 786432 bytes: 432 in use, 786000 free
global 240 bytes
local 192 bytes
trail/cp space 786432 bytes: 468 in use, 785964 free
trail 132 bytes
choice point 336 bytes
SLG subgoal space 0 bytes: 0 in use, 0 free
SLG unific. space 65536 bytes: 0 in use, 65536 free
SLG completion 65536 bytes: 0 in use, 65536 free
SLG trie space 0 bytes: 0 in use, 0 free
(call+ret. trie 0 bytes, trie hash tables 0 bytes)
0 subgoals currently in tables
0 subgoal check/insert attempts inserted 0 subgoals in the tables
0 answer check/insert attempts inserted 0 answers in the tables
Time: 0.610 sec. cputime, 18.048 sec. elapsetime
yes
| ?- halt. % I had enough !!!
End XSB (cputime 1.19 secs, elapsetime 270.25 secs)
my_favourite_prompt>