alarsyo/spot
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Merge transitions in tgba_tba_proxy.

Browse source 
With this change the output of
ltl2tgba -f -x -k -DS "GF(p_1) & ... & GF(p_n)
uses less than (n+1)^2 transitions when it used
exactly (n+1)*(2^n) transitions before.

* src/tgba/tgbatba.cc (tgba_tba_proxy_succ_iterator): Merge
transitions going to the same states if they are both accepting or
if neither are.
(state_ptr_bool_t, state_ptr_bool_less_than): Helper type to
store a transition in tgba_tba_proxy_succ_iterator.
* src/tgba/tgbatba.cc, src/tgba/tgbatba.hh
(tgba_tba_proxy::transition_annotation): Remove.  We cannot
implement this method if transitions are merged.
This commit is contained in:
Alexandre Duret-Lutz 2010-12-11 20:48:53 +01:00
parent 87ee1cfe7d
commit 01843379a3
4 changed files with 135 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

8
src/tgbatest/ltl2tgba.test
View file

@ -84,8 +84,14 @@ for opt in '' -D -DS; do
grep 'transitions: 15$' stdout
grep 'states: 6$' stdout
done
# Note: this is worse with -R3f.
../ltl2tgba -ks -f -R3f -DS "$f" > stdout
grep 'transitions: 17$' stdout
grep 'states: 7$' stdout
# Make sure 'GFa & GFb & GFc & GFd & GFe & GFf'
# has 7 states and 34 transitions after degeneralization.
f='GFa & GFb & GFc & GFd & GFe & GFg'
../ltl2tgba -ks -DS -x -f $opt "$f" > stdout
grep 'transitions: 34$' stdout
grep 'states: 7$' stdout