src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlparse/fmterror.cc, src/ltlparse/public.hh,
src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh,
src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
src/misc/escape.cc, src/misc/escape.hh, src/tgba/bdddict.cc,
src/tgba/bdddict.hh, src/tgba/bddprint.cc, src/tgba/bddprint.hh,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh,
src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/save.cc, src/tgbaalgos/save.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh,
src/tgbaparse/fmterror.cc, src/tgbaparse/public.hh: Include <iosfwd>
in headers, and prefer <ostream> in the body whenever possible.
* src/sanity/style.test, HACKING: Check and document this.

parameters.
* src/tgbaalgos/ltl2tgba_lacim.hh (ltl_to_tgba_lacim): Likewise.

reduc_tgba_sim): Fix warnings about Doxygen comment.
* src/ltlvisit/reduce.hh (reduce): Likewise.

* src/tgbaalgos/lbtt.cc (state_acc_pair, state_acc_pair_equal,
state_acc_pair_hash, acp_seen_map, todo_set, seen_map, fill_todo
lbtt_reachable): Remove.
(nonacceptant_lbtt_bfs): Rename as ...
(lbtt_bfs): ... this, and adjust to output acceptance conditions
on transitions.
(nonacceptant_lbtt_reachable): Rename as ...
(lbtt_reachable): ... this.
* src/tgbaalgos/lbtt.hh (nonacceptant_lbtt_reachable): Delete.
* src/tgbatest/ltl2tgba.cc: Suppress option "-T".

* src/tgbaalgos/gtec/ce.cc (counter_example::counter_example): Do
not parenthesize the type after the new operator (g++ 3.4 complains).
* src/tgbaalgos/dupexp.cc (dupexp_iter::process_state,
dupexp_iter::declare_state): Use this->automata_instead of
automata_.   Local member automata_ inherited from template base
classes must be prefixed or g++ 3.4 will not look them
up (conforming to 14.6.2.3).

comments.
* iface/gspn/ssp.cc (emptiness_check_shy_ssp::find_state): Likewise.
Soheib and I had a hard time figuring why we did this...

src/tgbaalgos/reductgba_sim.cc,	src/tgbaalgos/reductgba_sim.hh,
src/tgbaalgos/reductgba_sim_del.cc: Remove some comments.

* src/tgbatest/ltl2tgba.cc, src/tgbatest/reductgba.cc: Adjust ...
* src/tgbatest/spotlbtt.test: More test (delayed simulation)

* src/tgbatest/reductgba.test: More Test.

* src/tgbatest/ltl2tgba.cc: Adjust ...
* src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/reductgba_sim.hh,
src/tgbaalgos/reductgba_sim.cc: try to optimize.

* src/tgba/tgbareduc.hh, src/tgba/tgbareduc.cc: Scc reduction
and we remove some acceptance condition in scc which are not accepting.
* src/ltlvisit/syntimpl.cc : Some case wasn't detect.
* src/ltlvisit/basicreduce.cc: Case FGa || FGb = F(Ga | Gb) added.
* src/ltltest/syntimpl.test: More Test.
* src/ltltest/syntimpl.cc: Put the formula in negative normal form.

src/tgbaalgos/reductgba_sim.cc, src/tgbaalgos/reductgba_sim.hh
src/tgbaalgos/reductgba_sim_del.cc, src/tgbatest/reduccmp.test,
src/tgbatest/reductgba.cc: 80 columns and style.

src/tgbaalgos/reductgba_sim.hh, src/tgbaalgos/reductgba_sim.cc:
bug in delayed simulation.

* src/tgbatest/reduccmp.test, src/tgbatest/reductgba.test,
src/tgba/tgbareduc.cc: bug in scc reduction.

with scc and delayed simulation.

* src/tgbatest/ltl2tgba.cc: Adjust parameters.
* src/tgbatest/reductgba.cc, src/tgbatest/Makefile.am: More Test.
* src/tgbaalgos/reductgba_sim_del.cc: Not finish, lot of bugs.
* src/tgbaalgos/reductgba_sim.hh, src/tgbaalgos/reductgba_sim.cc:
Remove some useless comments.
* src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh: Bug in SCC.

* src/ltlvisit/reducform.cc: Correct some bug for multop.
* src/ltltest/reduccmp.test: More Test.
* src/ltltest/reduc.cc: Thinko
* src/ltltest/equals.cc: Reduction compare

automata.
* src/tgbatest/spotlbtt.test, src/tgbatest/Makefile.am: Add some
test for reduction of automata.
* src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/reductgba_sim.hh: Compute some simulation relation
to reduce a tgba.
* src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh: A implementation
of tgba for the reduction.
* src/tgbaalgos/Makefile.am, src/tgba/Makefile.am:
Add the reduction of automata.
* src/ltlvisit/syntimpl.cc, src/ltlvisit/basereduc.cc:
Lot of mistake are corrected.
* src/ltlvisit/syntimpl.hh, src/ltlvisit/reducform.cc,
src/ltlvisit/reducform.hh, src/ltltest/reduc.cc: Adjust.
* src/ltltest/equals.cc, src/ltltest/reduccmp.test,
src/ltltest/Makefile.am: Add a test for reduction.

* sanity/style.test: Diagnose semicolons with leading spaces.

space before colon, and do not output the top-level formula using
Spin's syntax.

Do not try to erase state that are not found in H.
Report from Soheib Baarir.

* src/sanity/Makefile.am (check-local): Run it.
* src/ltlvisit/nenoform.cc, src/ltlvisit/tostring.cc,
src/tgba/bdddict.cc, src/tgba/bddprint.cc, src/tgba/tgba.cc,
src/tgba/tgbaproduct.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/magic.cc, src/tgbaalgos/powerset.cc,
src/tgbaalgos/reachiter.cc, src/tgbaalgos/gtec/ce.cc,
src/tgbaalgos/gtec/gtec.cc, src/tgbatest/ltl2tgba.cc: Fix style
issues reported by style.test.

fair_loop_approximation when branching postponement is not used.

branching postponement.
* src/tgbaalgos/ltl2tgba_fm.cc (formula_canonizer): New class, with
bits extracted from fill_dests and ltl_to_tgba_fm.
(fill_dests, ltl_to_tgba_fm): Adjust to use formula_canonizer.

fair_loop_approx.
* src/tgbaalgos/ltl2tgba_fm.cc (ltl_to_tgba_fm): Implement the
fair_loop_approx optimization.
(ltl_promise_visitor, ltl_possible_fair_loop_visitor,
possible_fair_loop_checker): New classes.
* src/tgbatest/ltl2tgba.cc: Add the -L option.
* src/tgbatest/spotlbtt.test: Exercise fair_loop_approx.
* wrap/python/cgi/ltl2tgba.in: Make it an option.

branching_postponement.
* src/tgbaalgos/ltl2tgba_fm.cc (fill_dests): New function, extracted
from ltl_to_tgba_fm().
(ltl_to_tgba_fm): Implement the branching_postponement optimization.
* src/tgbatest/ltl2tgba.cc: Add the -p option.
* src/tgbatest/spotlbtt.test: Exercise branching postponement.
* wrap/python/cgi/ltl2tgba.in: Make it an option.

some GCC version.  Report from Denis Poitrenaud.

free all formulae entered into canonical_succ, to avoid errors
when a formula is entered into canonical_succ but not into
formulae_seen.
* src/tgbatest/ltl2tgba.test: Add a new test, and check with -f.
Report from Thomas Martinez.

src/tgba/bddprint.hh: Fix Doxygen comments.

arguments.
* src/tgbaalgos/neverclaim.cc (never_claim_bfs::state_is_accepting):
New method.
(never_claim_bfs::get_state_label, never_claim_bfs::process_state):
Use it.

Convert a formula into a string parsable by Spin.
* src/tgbaalgos/neverclaim.hh, src/tgbaalgos/neverclaim.cc: New files.
Print the never claim in Spin format of a degeneralized TGBA.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgbatest/ltl2tgba.cc: Add the option -N which outputs the
never claim in Spin format of a degeneralized TGBA.
* src/tgbatest/ltl2neverclaim.test: New file.
* src/tgbatest/Makefile.am: Add it.

Rewrite.
(numbered_state_heap_hash_map::index): New functions.
(numbered_state_heap_hash_map::filter): Delete.
* src/tgbaalgos/gtec/nsheap.hh
(numbered_state_heap_hash_map::index): New functions.
(numbered_state_heap_hash_map::filter): Delete.
* iface/gspn/eesrg.cc (numbered_state_heap_eesrg_semi::find,
numbered_state_heap_eesrg_semi::index): Rewrite.
(numbered_state_heap_eesrg_semi::filter): Remove.
* src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/ce.cc:
Adjust to use find() and index() instead of filter()..

Free filtered states.
(emptiness_check_shy_eesrg): New class.
(emptiness_check_eesrg_shy): New function.
* iface/gspn/eesrg.hh (emptiness_check_eesrg_shy): New function.
* iface/gspn/ltlgspn.cc (main) [EESRG]: Handle -e3, -e4, and -e5.
* * src/tgbaalgos/gtec/gtec.hh, src/tgbaalgos/gtec/gtec.cc
(emptiness_check_shy::check): Move arc, num, succ_queue, and todo
as attributes.
(emptiness_check_shy::find_state): New virtual function.

numbered_state_heap_hash_map_factory): New class.
* src/tgbaalgos/gtec/nsheap.cc (numbered_state_heap_hash_map_factory):
Implement it.
* src/tgbaalgos/gtec/gtec.hh (emptiness_check::emptiness_check,
emptiness_check_shy::emptiness_check_shy): Take a
numbered_state_heap_factory argument.
* tgbaalgos/gtec/status.hh
(emptiness_check_status::emptiness_check_status): Likewise.
(emptiness_check_status::h): Make it a numbered_state_heap*.
* src/tgbaalgos/gtec/ce.cc, tgbaalgos/gtec/gtec.cc,
tgbaalgos/gtec/status.cc: Adjust uses of ecs_->h.

Delete and split into ...
* src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/ce.hh,
src/tgbaalgos/gtec/explscc.cc, src/tgbaalgos/gtec/explscc.hh,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh,
src/tgbaalgos/gtec/nsheap.cc, src/tgbaalgos/gtec/nsheap.hh,
src/tgbaalgos/gtec/sccstack.cc, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh: ...
these new files.
* src/tgbaalgos/gtec/Makefile.am: New file.
* src/tgbaalgos/Makefile.am (SUBDIRS, libtgbaalgos_la_LIBADD):
Recurse into gtec and link gtec/libgtec.la.
(tgbaalgos_HEADERS, libtgbaalgos_la_SOURCES): Remove emptinesscheck.hh
and emptinesscheck.cc.
* configure.ac: Output src/tgbalagos/gtec/Makefile.
* iface/gspn/ltlgspn.cc, src/tgbatest/ltl2tgba.cc: Update includes.
* README: Update tree description.

numbered_state_heap, numbered_state_heap_hash_map): New classes.
* tgbaalgos/emptinesscheck.cc
(numbered_state_heap_hash_map_const_iterator): New class.
(numbered_state_heap_hash_map): Implement it.

(explicit_connected_component_factory,
connected_component_hash_set_factory): New classes.
(counter_example::counter_example): Take an
explicit_connected_component_factory factory argument.
* src/tgbaalgos/emptinesscheck.cc: Adjust.

New class.
(counter_example::connected_component_set): Rename as ...
(connected_component_hash_set): ... this, and inherit from
explicit_connected_component.
(counter_example::accepting_path, counter_example::complete_cycle):

(counter_example::connected_component_set::has_state): Return
a const state* and behave like h_filt.
* src/tgbaalgos/emptinesscheck.cc: Adjust.

into ...
(emptiness_check_shy): This new subclass of emptiness_check.
* src/tgbaalgos/emptinesscheck.cc, src/tgbatest/ltl2tgba.cc,
iface/gspn/ltlgspn.cc: Adjust.

extracted from ...
(emptiness_check): ... here.
* src/tgbaalgos/emptinesscheck.cc, src/tgbatest/ltl2tgba.cc,
iface/gspn/ltlgspn.cc: Adjust.

extracted from ...
(emptiness_check): ... here.
* src/tgbaalgos/emptinesscheck.cc: Adjust.

from ...
(emptiness_check): ... here.
(emptiness_check::root): Redefined as a scc_stack object.
* src/tgbaalgos/emptinesscheck.cc: Adjust.

Do not visit a state more than once.  Report from Soheib Baarir.

variables from a shared bdd_dict.  Register Next variables as
anonymous variables.
(translate_dict::translate_dict, translate_dict::~translate_dict,
translate_dict::register_proposition,
translate_dict::register_a_variable,
translate_dict::register_next_variable,
translate_dict::dump, translate_dict::var_to_formula,
ltl_to_tgba_fm): Adjust.
(translate_dict::dict): New attribute.
(translate_dict::a_map, translate_dict::a_formula_map,
translate_dict::var_map, translate_dict::var_formula_map): Delete.