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

sccinfo: introduce is_rejecting()

Browse source 
Because scc_info does not perform a full emptiness check, it is not
always able to tell whether an SCC is accepting if the acceptance
condition use Fin primitives.  This introduce is_rejecting_scc() in
addition to to is_accepting_scc().  Only one of them may be true, but
they can both be false if scc_info has no idea whether the SCC is
accepting.

* src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh: Implement
is_rejecting_scc().
* src/bin/ltlcross.cc, src/tgba/acc.cc, src/tgba/acc.hh,
src/tgbaalgos/dtgbacomp.cc, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/remfin.cc, src/tgbaalgos/safety.cc,
src/tgbaalgos/sccfilter.cc: Use it.
* src/tgbaalgos/dotty.cc: Use is_rejecting_scc() and is_accepting_scc()
to color SCCs.
* doc/org/oaut.org: Document the colors used.
* src/tgbatest/neverclaimread.test, src/tgbatest/readsave.test: Adjust
tests.
* src/tgbatest/sccdot.test: New test case.
* src/tgbatest/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2015-03-03 18:09:44 +01:00
parent 8658441839
commit ebe4ffc507
16 changed files with 475 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/tgbaalgos/dtgbacomp.cc
View file

@ -136,7 +136,7 @@ namespace spot
{
acc_cond::mark_t acc = 0U;
unsigned scc = si.scc_of(src);
if (!si.is_accepting_scc(scc) && !si.is_trivial(scc))
if (si.is_rejecting_scc(scc) && !si.is_trivial(scc))
acc = all_acc;
// Keep track of all conditions on transition leaving state