* src/ltlvisit/basicreduce.cc (basic_reduce_visitor::visit):
Simplify the formula again after FX->XF and GX->XG permutations.
This is so that formulae like GFXXa become GFa and not just GFXa.
* src/ltlvisit/contain.cc (reduce_tau03_visitor): Fix a typo
in the rules for i|j or i&j, resulting in missing simplifications.
* src/ltlvisit/reduce.hh, src/ltlvisit/reduce.hh:
Add Reduce_Containment_Checks and Reduce_Containment_Checks_Stronger
flags, and call reduce_tau03.
* src/ltlvisit/contain.hh (reduce_tau03): Make "stronger" the
default.
* src/ltlvisit/contain.cc: Style.
* src/ltltest/reduc.cc: Simplify using the reduce() interface
instead of reduce_tau03.
* src/tgbatest/ltl2tgba.cc: Likewise. Add -fr5, -fr6, and -fr7
options.
* src/tgbatest/spotlbtt.test: Remove cases using "-c", since its
current implementation is not always correct (and apparently
reduces less than -fr7).
New function, performing LTL reduction a la tauriainen.03.a83.
* src/ltltest/equals.cc, src/ltltest/reduc.cc: Add support for
the new reduction.
* src/ltltest/reduc.test: Cut the test in half, and additionally
test the new reduction.
* src/ltltest/reduccmp.test: Run on the new reduction.
* src/ltltest/Makefile.am: Adjust.
* src/tgbatest/ltl2tgba.cc: Add new options to apply the reduction.
* src/tgbatest/spotlbtt.test: Use them.
New function.
* src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh: Use it to
distinguish acceptance conditions that are identical in both
operands.
* src/tgbatest/explpro4.test: New file.
* src/tgbatest/explpro2.test, src/tgbatest/Makefile.am: Adjust.
* src/ltlvisit/contain.cc, src/ltlvisit/contain.hh
(spot::ltl::language_containment_checker): ... in these new files.
* src/ltlvisit/Makefile.am: Adjust.
Rename as ...
(free_anonymous_list_of): ... this, and correct their update on
release. Also correct yesterday's the correction (ahem!).
(dump): Improve verbosity.
* src/misc/freelist.cc (free_list::remove, free_list::insert): Fix
longstanding thinkos.
(free_list::free_count): New function.
(ltl_to_tgba_fm): Add a new option "containment_checks" to enable
some language containment checks (via emptiness checks) during the
translation. This first attempt currently only use containment
checks to merge states bisimulating each other.
* src/tgbatest/ltl2tgba.cc: Bind this to option "-c".
* src/tgbatest/spotlbtt.test: Check it.
call release_n(), not remove() to repopulated the freelist of
anonymous BDD variables. New code I'm working on triggered an
assertion inside remove(), but I'm surprised this bug hadn't
manifested before !
(couvreur99_check_shy_ssp): Add a onepass_ attribute to
disable the "shyness", and do not increment pos before calling
find_state since gspn's implementation uses it.
* iface/gspn/ssp.cc: Enable "onepass_" for all "shy" variants,
and also fix find_state for the case where onepass_ is
disabled (but I do not yet know why the latter fix isn't enough).
numbered_state_heap_ssp_semi): Implement a double hash_map using
greatspn's new container() function.
* iface/gspn/ssp.hh (gspn_ssp_interface): Add a doublehash option.
* iface/gspn/ltlgspn.cc: Add option -1 to disable this optimization.
instead of one : one for the atomic propositions, and one
for the acceptance conditions. This way it's easy for
the tools in iface/gspn/ to require some atomic proposition
to be declared and allow any acceptance conditions (there is nothing
to adjust in this files because of the default value of the argument).
* src/tgbaparse/tgbaparse.yy: Adjust.
* src/tgbatest/ltl2tgba.cc, src/tgbatest/readsave.cc,
src/tgbatest/reductgba.cc, src/tgbatest/tgbaread.cc: Adjust calls.
Reorganize this function so that syntactically there is only one
loop over the successors, and not two. Call reintroduce the call
to couvreur99_check_shy::state_index(), needed by SSP, and
suppress that to index_and_insert introduced on 2004-12-29. Also
split the "group" option in two: "group" and "group2". "group2"
is the equivalent of the older "group", while the new "group" is
weaker and faster.
(couvreur99_check_shy::state_index): Change prototype as needed by
the algorithm.
* src/tgbaalgos/gtec/gtec.hh: Adjust.
* src/tgbaalgos/gtec/nsheap.hh, src/tgbaalgos/gtec/nsheap.cc
(index_and_insert): Remove.
* iface/gspn/ssp.cc (couvreur99_check_shy_ssp::state_index): Adjust
to new prototype.
* bench/emptchk/README, bench/emptchk/algorithms: Adjust references
to group/group2.
