* src/tgba/tgba.hh: Declare a prop_set to specify the types.
* src/tgba/tgbagraph.hh: Use prop_set for all copy constructors.
* iface/ltsmin/ltsmin.cc, src/bin/autfilt.cc, src/bin/randaut.cc,
src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/closure.cc,
src/tgbaalgos/complete.cc, src/tgbaalgos/degen.cc,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dtgbacomp.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh,
src/tgbaalgos/sccfilter.cc, src/tgbaalgos/simulation.cc,
src/tgbaalgos/stutterize.cc, src/tgbatest/checkpsl.cc,
src/tgbatest/emptchk.cc, src/tgbatest/ltl2tgba.cc,
wrap/python/spot.i,src/graphtest/tgbagraph.test: Adjust all uses.

* src/tgbaalgos/dotty.cc: Specialize for tgba_digraph_ptr.
* src/tgba/tgbagraph.hh, src/tgbaalgos/dupexp.cc: Copy properties by
default when cloning an automaton.
* src/tgbatest/det.test, src/tgbatest/dstar.test,
src/tgbatest/ltl2tgba.test, src/tgbatest/monitor.test,
src/tgbatest/neverclaimread.test, src/tgbatest/tgbaread.test: Adjust
tests.

* src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/are_isomorphic.hh,
src/bin/autfilt.cc: are_isomorphic now uses canonicalize. It returns a
bool, because the mapping cannot be deduced easily from the
canonicalized automaton.
* src/graph/graph.hh: Add equality operator to trans_storage_t
for easy comparison of transition vectors.
* src/tgba/tgbagraph.hh: Add equality operator to tgba_graph_trans_data
and to tgba_digraph.
* src/tgbaalgos/canonicalize.cc, src/tgbaalgos/canonicalize.hh:
New files.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgbatest/isomorph.test: Test them.

* src/tgba/tgbagraph.cc (merge_transition): Do it.
* src/tgbatest/readsave.test: Test it.
* src/bin/autfilt.cc: Fix statistics about the original
automaton when using --stats or --name.

* src/tgba/tgba.hh, src/tgba/tgba.cc (set_named_prop): Add a template
version.
(get_named_prop): Hide the old version, and supply a template version
that casts.
* src/bin/ltlcross.cc, src/hoaparse/hoaparse.yy, src/tgbaalgos/hoa.cc,
src/tgbaalgos/product.cc: Adjust usage.

This fixes #6.

* src/graph/graph.hh: Rename the old transitions() as
transition_vector(), and implement a new transitions() that iterates
only on non-dead transitions.
* src/tgba/tgbagraph.hh, src/tgba/tgbagraph.cc, src/graph/ngraph.hh:
Adjust wrappers.
* src/hoaparse/hoaparse.yy, src/tgbaalgos/complete.cc,
src/tgbaalgos/dtbasat.cc, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/randomize.cc, src/tgbaalgos/safety.cc: Adjust calls.

* src/ltlast/unop.cc, src/ltlast/unop.hh src/ltlvisit/lbt.cc,
src/ltlvisit/mark.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/tostring.cc, src/ltlvisit/tunabbrev.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/ltl2tgba_fm.cc: Remove Finish.
* src/tgbaalgos/ltl2taa.cc: Remove Finish, and simply use an empty
destination to code the sink.

... and use it to sort transitions.

* src/graph/graph.hh: Adjust storage of source index.  Provide
remove_dead_transitions_(), sort_transitions_() and
chain_transitions_() methods.
* src/tgba/tgbagraph.cc (merge_transitions): Rewrite using
above methods.
* src/tgba/tgbagraph.hh: Add a comparison operator for
transitions.
* src/tgbatest/degenlskip.test, src/tgbatest/det.test,
src/tgbatest/ltl2ta.test, src/tgbatest/neverclaimread.test,
src/tgbatest/readsave.test: Adjust expected transition order in test
cases.

* src/misc/bddop.cc, src/misc/bddop.hh: Delete.
* src/misc/Makefile.am, src/ta/taexplicit.cc, src/ta/tgtaexplicit.cc,
src/taalgos/tgba2ta.cc, src/tgba/taatgba.cc, src/tgba/tgbagraph.hh:
Adjust.

* src/hoaparse/hoaparse.yy: Here.
* src/tgbatest/hoaparse.test: More tests.
* src/tgba/acc.hh (operator^=): New method.

* src/tgbatest/monitor.test: New file.
* src/tgbatest/Makefile.am: Add it.
* src/tgbaalgos/minimize.cc (minimize_monitor): Mark
the output automaton as state-based.
* src/tgba/tgbagraph.hh: Assume automata with 0 acceptance sets are also
state-based.

* src/ltltest/ltlfilt.test: Add more tests.
* src/ltltest/stutter.test: New test.
* src/ltltest/Makefile.am: Adjust.
* src/bin/ltlfilt.cc: Catch std::runtime_error.
* src/tgba/tgbasl.hh (make_tgbasl): New function.
* src/tgba/tgbagraph.hh (make_tgba_graph): Add another overload.
* src/tgbaalgos/stutter_invariance.cc,
src/tgbaalgos/stutter_invariance.hh: Take the algorithm version as an
optional integer, and call getenv() only once.
* bench/stutter/stutter_invariance_randomgraph.cc,
bench/stutter/stutter_invariance_formulas.cc: Simplify using the
above functions.

Thibaud Michaud authored Oct 01, 2014 and Alexandre Duret-Lutz committed Nov 14, 2014

* src/tgbaalgos/closure.cc, src/tgbaalgos/closure.hh:
Add closure function.
* src/tgbaalgos/stutterize.cc, src/tgbaalgos/stutterize.hh:
Add two implementations of "self-loopize" function.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgba/tgbasl.cc, src/tgba/tgbasl.hh: On-the-fly implementation of
self-loopize.
* src/tgba/Makefile.am: Add it.
* src/tgbatest/ltl2tgba.cc, src/tgbatest/stutter_invariant.test: Test
closure and sl.
* src/tgbatest/Makefile.am: Adjust.
* src/bin/ltlfilt.cc: Modify stutter-invariant option to use
automaton-based checking rather than syntactic-based checking.
* src/ltlvisit/remove_x.cc, src/ltlvisit/remove_x.hh:
Remove is_stutter_insensitive function.
* src/tgbaalgos/stutter_invariance.cc,
src/tgbaalgos/stutter_invariance.hh: Check if a formula is
stutter-invariant using closure and sl.
* wrap/python/spot.i: Add closure and sl bindings.
* bench/stutter/stutter_invariance_formulas.cc: Generate benchmarks from
given formulas.
* bench/stutter/stutter_invariance_randomgraph.cc: Generate benchmarks
from random automata.
* bench/stutter/Makefile.am: Add them.
* configure.ac: Add bench/stutter/Makefile.
* bench/Makefile.am: Add stutter subdirectory.
* README: Document bench/stutter directory.

Thibaud Michaud authored Oct 29, 2014 and Alexandre Duret-Lutz committed Nov 14, 2014

* src/tgba/tgbagraph.hh: Adding trans_storage methods to access
the underlying trans_storage_t struct.

* src/tgba/futurecondcol.cc: Use swap instead of assignement.  It is
more efficient, and it avoid the bug of gcc-snapshot mentionned two
commits below.

* src/tgba/tgbasafracomplement.cc: Here.  Beside being more efficient,
the use of std::swap instead of an assignment also protects us from a
bug recently introduced in the development version of G++.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63698

* src/tgba/tgbasafracomplement.cc: Here.  Beside being more efficient,
the use of std::swap instead of an assignment also protects us from a
bug recently introduced in the development version of G++.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63698

* buddy/src/bdd.h, buddy/src/bvec.h, buddy/src/fdd.h: Rename as...
* buddy/src/bddx.h, buddy/src/bvecx.h, buddy/src/fddx.h: ... these.
* buddy/src/Makefile.am: Build libbddx.la instead of libbdd.la.
* buddy/examples/Makefile.def: Use it.
* Makefile.am, buddy/src/bddtest.cxx, buddy/src/bvec.c,
buddy/src/cppext.cxx, buddy/src/fdd.c, buddy/src/imatrix.h,
buddy/src/kernel.h, buddy/examples/adder/adder.cxx,
buddy/examples/bddcalc/parser_.h, buddy/examples/bddtest/bddtest.cxx,
buddy/examples/cmilner/cmilner.c, buddy/examples/fdd/fdd.cxx,
buddy/examples/milner/milner.cxx, buddy/examples/money/money.cxx,
buddy/examples/queen/queen.cxx, buddy/examples/solitare/solitare.cxx,
m4/buddy.m4, src/ltlvisit/apcollect.hh, src/ltlvisit/simplify.hh,
src/misc/bddlt.hh, src/misc/bddop.hh, src/misc/minato.hh,
src/priv/acccompl.hh, src/priv/accconv.hh, src/priv/accmap.hh,
src/priv/bddalloc.cc, src/tgba/bdddict.hh, src/tgba/bddprint.hh,
src/tgba/tgbamask.hh, src/tgba/tgbasafracomplement.cc,
src/tgbaalgos/emptiness.hh, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/powerset.cc,
src/tgbaalgos/sccfilter.hh, src/tgbaalgos/sccinfo.hh,
src/tgbaalgos/weight.hh, wrap/python/buddy.i: Adjust.
* NEWS, README: Document it.

* src/tgba/tgbagraph.cc (purge_unreachable_states): Rewrite using
only one vector.

* src/tgba/tgbagraph.hh, src/tgba/tgbagraph.cc: Add a copy constructor,
and some method to purge unreachable states.
* src/graph/graph.hh (defrag_states): Erase transition of removed
states.
* src/tgbaalgos/complete.cc, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/dtgbacomp.cc, src/tgbaalgos/simulation.cc,
src/tgbatest/checkpsl.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2tgba.cc: Adjust to use make_tgba_digraph() instead
of tgba_dupexp_dfs() or tgba_dupexp_bfs().
* src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh: Use
make_tgba_digraph() when possible.
* src/tgbatest/det.test, src/tgbatest/sim.test: Adjust expected results.

* src/ltlast/formula.hh: Specialize std::hash<>.
* src/ltlvisit/contain.hh, src/ltlvisit/relabel.cc,
src/tgba/taatgba.hh, src/tgbaalgos/ltl2tgba_fm.cc: Do
not pass formula_ptr_hash to unordered_map.

* src/tgba/tgbasafracomplement.cc: Remove documentation of inexisting
argument.
* src/tgbaalgos/hoaf.hh: Fix typo in documentation.

* src/tgba/tgbagraph.hh, src/tgba/tgbagraph.cc (purge_dead_states): New.
* src/graph/graph.hh (defrag_states): New methods.
* src/tgbaalgos/dtgbacomp.cc: Use it.
* src/tgbatest/det.test: Fix state number.

This involves reimplementing some algorithms using tgba_digraph, and
implementing an explicit product that takes two tgba_digraphs and
produces a tgba_digraph.

* src/tgbaalgos/product.cc, src/tgbaalgos/product.hh: New files.
* src/tgbaalgos/Makefile.am: Adjust.
* src/bin/ltlcross.cc, src/tgba/tgba.cc, src/tgba/tgba.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgbaalgos/cycles.cc, src/tgbaalgos/cycles.hh,
src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh,
src/tgbaalgos/isweakscc.cc, src/tgbaalgos/isweakscc.hh,
src/tgbaalgos/minimize.cc, src/tgbaalgos/minimize.hh,
src/tgbaalgos/powerset.cc, src/tgbaalgos/powerset.hh,
src/tgbaalgos/safety.cc, src/tgbaalgos/safety.hh,
src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh,
src/tgbatest/complementation.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2ta.test, src/tgbatest/ltl2tgba.cc,
src/tgbatest/randtgba.cc: Update to use scc_info and/or tgba_digraph.

* src/graph/graph.hh (digraph::digraph): Mark transition 0 as dead.
(digraph::is_dead_transition): Fix prototype.
* src/tgba/tgbagraph.hh (tgba_digraph::is_dead_transition): Fix
prototype.

This is a huge patch, that took over a month to complete.  The bit sets
are currently restricted to what 'unsigned can store', but it should be
easy to extend it to 'uint64_t' should we need it.

* NEWS: Update.
* src/tgba/acc.hh: New file.
* src/tgbatest/acc.cc, src/tgbatest/acc.test: Test it.
* src/tgba/tgbakvcomplement.cc, src/tgba/tgbakvcomplement.hh,
src/tgba/tgbasgba.cc, src/tgba/tgbasgba.hh: Delete.  The KV
complementation is too slow to be used in practice, and I somehow broke
it during the conversion to bitsets.  The tgba->sgba conversion was only
used for the KV complementation, and should be better redone on
tgba_digraph_ptr should it be needed again.
* src/bin/ltlcross.cc, src/dstarparse/dra2ba.cc,
src/dstarparse/nsa2tgba.cc, src/graphtest/tgbagraph.cc,
src/graphtest/tgbagraph.test, src/kripke/fairkripke.cc,
src/kripke/fairkripke.hh, src/kripke/kripke.cc, src/kripke/kripke.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/misc/hash.hh, src/neverparse/neverclaimparse.yy, src/priv/accmap.hh,
src/ta/ta.cc, src/ta/ta.hh, src/ta/taexplicit.cc, src/ta/taexplicit.hh,
src/ta/taproduct.cc, src/ta/taproduct.hh, src/ta/tgta.cc,
src/ta/tgta.hh, src/ta/tgtaexplicit.cc, src/ta/tgtaexplicit.hh,
src/ta/tgtaproduct.cc, src/ta/tgtaproduct.hh, src/taalgos/dotty.cc,
src/taalgos/emptinessta.cc, src/taalgos/minimize.cc,
src/taalgos/tgba2ta.cc, src/tgba/Makefile.am, src/tgba/fwd.hh,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.cc,
src/tgba/tgba.hh, src/tgba/tgbagraph.cc, src/tgba/tgbagraph.hh,
src/tgba/tgbamask.cc, src/tgba/tgbamask.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbaproduct.hh, src/tgba/tgbaproxy.cc, src/tgba/tgbaproxy.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgbaalgos/bfssteps.cc, src/tgbaalgos/complete.cc,
src/tgbaalgos/compsusp.cc, src/tgbaalgos/degen.cc,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dtbasat.cc,
src/tgbaalgos/dtgbacomp.cc, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/emptiness.hh, src/tgbaalgos/gtec/ce.cc,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh,
src/tgbaalgos/gtec/sccstack.cc, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/gv04.cc, src/tgbaalgos/hoaf.cc,
src/tgbaalgos/isweakscc.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/magic.cc,
src/tgbaalgos/ndfs_result.hxx, src/tgbaalgos/neverclaim.cc,
src/tgbaalgos/postproc.cc, src/tgbaalgos/powerset.cc,
src/tgbaalgos/randomgraph.cc, src/tgbaalgos/randomgraph.hh,
src/tgbaalgos/reducerun.cc, src/tgbaalgos/replayrun.cc,
src/tgbaalgos/safety.cc, src/tgbaalgos/save.cc, src/tgbaalgos/scc.cc,
src/tgbaalgos/scc.hh, src/tgbaalgos/sccfilter.cc,
src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh,
src/tgbaalgos/se05.cc, src/tgbaalgos/simulation.cc,
src/tgbaalgos/simulation.hh, src/tgbaalgos/stats.cc,
src/tgbaalgos/stripacc.cc, src/tgbaalgos/tau03.cc,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/weight.cc,
src/tgbaalgos/weight.hh, src/tgbaparse/tgbaparse.yy,
src/tgbatest/Makefile.am, src/tgbatest/complementation.cc,
src/tgbatest/complementation.test, src/tgbatest/degenlskip.test,
src/tgbatest/det.test, src/tgbatest/dstar.test, src/tgbatest/emptchk.cc,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explpro4.test, src/tgbatest/explprod.test,
src/tgbatest/ltl2tgba.cc, src/tgbatest/ltl2tgba.test,
src/tgbatest/maskacc.cc, src/tgbatest/maskacc.test,
src/tgbatest/neverclaimread.test, src/tgbatest/randtgba.cc,
src/tgbatest/readsave.test, src/tgbatest/sim.test,
src/tgbatest/sim2.test, src/tgbatest/spotlbtt.test,
src/tgbatest/tgbaread.test, src/tgbatest/tripprod.test,
iface/dve2/dve2.cc: Adjust or use to the new acceptance interface.

The weak complementation is now implemented by dtgba_complement(), with
dispatch based on the automaton property.

* src/tgba/wdbacomp.cc, src/tgba/wdbacomp.hh: Remove.
* src/tgba/Makefile.am: Adjust.
* src/tgbaalgos/dtgbacomp.cc: Implement the weak version.
* src/tgbaalgos/dtgbacomp.hh: Document it.
* src/tgbaalgos/minimize.cc: Use dtgba_complement() instead.

They are not used in Spot, and their interface is really horrible.  They
are used in SOG-ITS to implement the SLAP product from TACAS'11, so we
should support the functionality eventually, but maybe using the new
kind of properties that can be attached to automata.  In the meantime,
these classes are making refactoring harder.

* src/tgba/futurecondcol.cc, src/tgba/futurecondcol.hh,
src/tgba/tgbascc.cc, src/tgba/tgbascc.hh: Delete.
* src/tgba/Makefile.am, src/tgbatest/ltl2tgba.cc,
src/tgbatest/checkpsl.cc, src/tgbatest/emptchk.cc: Adjust.

At the same time, this adds a is_empty() method to the tgba class,
simplifying many places that ran emptiness checks.

* iface/dve2/dve2check.cc, src/bin/ltlcross.cc,
src/dstarparse/dra2ba.cc, src/ltlvisit/contain.cc, src/tgba/tgba.cc,
src/tgba/tgba.hh, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/emptiness.hh, src/tgbaalgos/gtec/ce.cc,
src/tgbaalgos/gtec/ce.hh, src/tgbaalgos/gtec/gtec.cc,
src/tgbaalgos/gtec/gtec.hh, src/tgbaalgos/gv04.cc,
src/tgbaalgos/gv04.hh, src/tgbaalgos/magic.cc,
src/tgbaalgos/magic.hh, src/tgbaalgos/minimize.cc,
src/tgbaalgos/ndfs_result.hxx, src/tgbaalgos/powerset.cc,
src/tgbaalgos/projrun.cc, src/tgbaalgos/projrun.hh,
src/tgbaalgos/reducerun.cc, src/tgbaalgos/reducerun.hh,
src/tgbaalgos/replayrun.cc, src/tgbaalgos/replayrun.hh,
src/tgbaalgos/rundotdec.cc, src/tgbaalgos/rundotdec.hh,
src/tgbaalgos/se05.cc, src/tgbaalgos/se05.hh,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
src/tgbaalgos/word.cc, src/tgbaalgos/word.hh,
src/tgbatest/checkpsl.cc, src/tgbatest/complementation.cc,
src/tgbatest/emptchk.cc, src/tgbatest/ltl2tgba.cc,
src/tgbatest/randtgba.cc, wrap/python/ajax/spot.in,
wrap/python/spot.i: Use shared_ptr.

* src/graph/graph.hh, src/tgba/tgbagraph.hh (is_dead_transition): New
method.

It makes it easier to browse tgba/.

* src/tgba/state.hh, src/tgba/succiter.hh: Delete, and
move the contents...
* src/tgba/tgba.hh: ... here.
* src/tgba/Makefile.am: Adjust.
* src/graphtest/ngraph.cc, src/kripke/fairkripke.hh,
src/saba/sabacomplementtgba.cc, src/ta/ta.hh,
src/tgba/tgbakvcomplement.cc, src/tgba/tgbasafracomplement.cc,
src/tgbaalgos/bfssteps.hh, src/tgbaalgos/emptiness.hh,
src/tgbaalgos/gtec/explscc.hh, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/rundotdec.cc, wrap/python/spot.i: Adjust includes.

* src/tgba/tgbagraph.hh: Remove the set_bprop/get_bprop interface.
* src/tgba/tgba.cc, src/tgba/tgba.hh: Add a new interface for
setting/querying/copying the following properties: single_acc_set,
state_based_acc, inherently_weak, deterministic.
* src/dstarparse/dra2ba.cc, src/dstarparse/nra2nba.cc,
src/neverparse/neverclaimparse.yy, src/saba/sabacomplementtgba.cc,
src/tgba/tgbagraph.cc, src/tgbaalgos/degen.cc, src/tgbaalgos/dotty.cc,
src/tgbaalgos/isdet.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/minimize.cc, src/tgbaalgos/neverclaim.cc,
src/tgbaalgos/postproc.cc, src/tgbaalgos/sccfilter.cc,
src/tgbaalgos/simulation.cc, src/tgbatest/degenlskip.test,
src/tgbatest/ltl2tgba.cc: Adjust to the new interface, or use
it to bypass some useless work.

* iface/dve2/dve2.cc, iface/dve2/dve2.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/ltlvisit/contain.cc, src/ltlvisit/contain.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/tgba/bddprint.cc, src/tgba/bddprint.hh, src/tgba/formula2bdd.cc,
src/tgba/formula2bdd.hh, src/tgba/taatgba.cc, src/tgba/taatgba.hh,
src/tgba/tgbagraph.hh, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/compsusp.hh, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/translate.cc,
src/tgbaalgos/translate.hh, src/tgbaalgos/word.cc,
src/tgbaalgos/word.hh: Pass shared_ptr to functions by const ref.

A type such as 'const tgba_digraph*' and 'tgba_digraph*' are replaced
by 'const_tgba_digraph_ptr' and 'tgba_digraph_ptr'.  Additionally 'new
tgba_digraph(...)' is replaced by 'make_tgba_digraph(...)'.

This convention is followed by all automata types. Those smart
pointers should normally be passed by const reference as input of
function to avoid the atomic increments/decrements, but I probably
missed a few, as this huge patch took me nearly 12h.

* src/kripke/fwd.hh, src/tgba/fwd.hh: New files.
* src/kripke/Makefile.am, src/tgba/Makefile.am: Adjust.
* iface/dve2/dve2.cc, iface/dve2/dve2.hh, iface/dve2/dve2check.cc,
src/bin/common_output.hh, src/bin/dstar2tgba.cc,
src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc, src/bin/ltlcross.cc,
src/bin/ltlfilt.cc, src/dstarparse/dra2ba.cc,
src/dstarparse/dstar2tgba.cc, src/dstarparse/dstarparse.yy,
src/dstarparse/nra2nba.cc, src/dstarparse/nsa2tgba.cc,
src/dstarparse/public.hh, src/graphtest/tgbagraph.cc,
src/kripke/fairkripke.hh, src/kripke/kripke.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/public.hh,
src/kripketest/parse_print_test.cc, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/contain.cc,
src/ltlvisit/contain.hh, src/neverparse/neverclaimparse.yy,
src/neverparse/public.hh, src/priv/accmap.hh,
src/priv/countstates.cc, src/priv/countstates.hh, src/saba/saba.hh,
src/saba/sabacomplementtgba.cc, src/saba/sabacomplementtgba.hh,
src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh,
src/sabaalgos/sabareachiter.cc, src/sabaalgos/sabareachiter.hh,
src/sabatest/sabacomplementtgba.cc, src/ta/ta.hh,
src/ta/taexplicit.cc, src/ta/taexplicit.hh, src/ta/taproduct.cc,
src/ta/taproduct.hh, src/ta/tgta.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/ta/tgtaproduct.cc,
src/ta/tgtaproduct.hh, src/taalgos/dotty.cc, src/taalgos/dotty.hh,
src/taalgos/emptinessta.cc, src/taalgos/emptinessta.hh,
src/taalgos/minimize.cc, src/taalgos/minimize.hh,
src/taalgos/reachiter.cc, src/taalgos/reachiter.hh,
src/taalgos/statessetbuilder.cc, src/taalgos/statessetbuilder.hh,
src/taalgos/stats.cc, src/taalgos/stats.hh, src/taalgos/tgba2ta.cc,
src/taalgos/tgba2ta.hh, src/tgba/bdddict.cc, src/tgba/bdddict.hh,
src/tgba/formula2bdd.hh, src/tgba/futurecondcol.cc,
src/tgba/futurecondcol.hh, src/tgba/taatgba.hh, src/tgba/tgba.cc,
src/tgba/tgba.hh, src/tgba/tgbagraph.hh,
src/tgba/tgbakvcomplement.cc, src/tgba/tgbakvcomplement.hh,
src/tgba/tgbamask.cc, src/tgba/tgbamask.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbaproduct.hh, src/tgba/tgbaproxy.cc,
src/tgba/tgbaproxy.hh, src/tgba/tgbasafracomplement.cc,
src/tgba/tgbasafracomplement.hh, src/tgba/tgbascc.cc,
src/tgba/tgbascc.hh, src/tgba/tgbasgba.cc, src/tgba/tgbasgba.hh,
src/tgba/wdbacomp.cc, src/tgba/wdbacomp.hh,
src/tgbaalgos/bfssteps.cc, src/tgbaalgos/bfssteps.hh,
src/tgbaalgos/complete.cc, src/tgbaalgos/complete.hh,
src/tgbaalgos/compsusp.cc, src/tgbaalgos/compsusp.hh,
src/tgbaalgos/cycles.hh, src/tgbaalgos/degen.cc,
src/tgbaalgos/degen.hh, src/tgbaalgos/dotty.cc,
src/tgbaalgos/dotty.hh, src/tgbaalgos/dottydec.cc,
src/tgbaalgos/dottydec.hh, src/tgbaalgos/dtbasat.cc,
src/tgbaalgos/dtbasat.hh, src/tgbaalgos/dtgbacomp.cc,
src/tgbaalgos/dtgbacomp.hh, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/dtgbasat.hh, src/tgbaalgos/dupexp.cc,
src/tgbaalgos/dupexp.hh, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/emptiness.hh, src/tgbaalgos/gtec/gtec.cc,
src/tgbaalgos/gtec/gtec.hh, src/tgbaalgos/gtec/status.cc,
src/tgbaalgos/gtec/status.hh, src/tgbaalgos/gv04.cc,
src/tgbaalgos/gv04.hh, src/tgbaalgos/isdet.cc,
src/tgbaalgos/isdet.hh, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh,
src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2taa.hh,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_fm.hh,
src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh,
src/tgbaalgos/minimize.cc, src/tgbaalgos/minimize.hh,
src/tgbaalgos/ndfs_result.hxx, src/tgbaalgos/neverclaim.cc,
src/tgbaalgos/neverclaim.hh, src/tgbaalgos/postproc.cc,
src/tgbaalgos/postproc.hh, src/tgbaalgos/powerset.cc,
src/tgbaalgos/powerset.hh, src/tgbaalgos/projrun.cc,
src/tgbaalgos/projrun.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/reachiter.cc,
src/tgbaalgos/reachiter.hh, src/tgbaalgos/reducerun.cc,
src/tgbaalgos/reducerun.hh, src/tgbaalgos/replayrun.cc,
src/tgbaalgos/replayrun.hh, src/tgbaalgos/rundotdec.cc,
src/tgbaalgos/rundotdec.hh, src/tgbaalgos/safety.cc,
src/tgbaalgos/safety.hh, src/tgbaalgos/save.cc,
src/tgbaalgos/save.hh, src/tgbaalgos/scc.cc, src/tgbaalgos/scc.hh,
src/tgbaalgos/sccfilter.cc, src/tgbaalgos/sccfilter.hh,
src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh,
src/tgbaalgos/se05.cc, src/tgbaalgos/se05.hh,
src/tgbaalgos/simulation.cc, src/tgbaalgos/simulation.hh,
src/tgbaalgos/stats.cc, src/tgbaalgos/stats.hh,
src/tgbaalgos/stripacc.cc, src/tgbaalgos/stripacc.hh,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
src/tgbaalgos/translate.cc, src/tgbaalgos/translate.hh,
src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
src/tgbatest/complementation.cc, src/tgbatest/explprod.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc,
src/tgbatest/maskacc.cc, src/tgbatest/powerset.cc,
src/tgbatest/randtgba.cc, src/tgbatest/taatgba.cc,
src/tgbatest/tgbaread.cc, src/tgbatest/tripprod.cc,
wrap/python/ajax/spot.in, wrap/python/spot.i,
wrap/python/tests/interdep.py: Use shared pointers for automata.

* src/tgba/tgbaunion.cc, src/tgba/tgbaunion.hh: Delete.
* src/tgba/Makefile.am: Adjust.

* src/tgba/bdddict.hh (bdd_dict_ptr): New type.
(make_bdd_dict): New function.
* iface/dve2/dve2.cc, iface/dve2/dve2.hh, iface/dve2/dve2check.cc,
src/bin/dstar2tgba.cc, src/bin/ltlcross.cc,
src/dstarparse/dstarparse.yy, src/dstarparse/public.hh,
src/graphtest/tgbagraph.cc, src/kripke/kripkeexplicit.cc,
src/kripke/kripkeexplicit.hh, src/kripke/kripkeprint.cc,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/public.hh,
src/kripketest/parse_print_test.cc, src/ltlvisit/apcollect.cc,
src/ltlvisit/contain.cc, src/ltlvisit/contain.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/simplify.hh,
src/neverparse/neverclaimparse.yy, src/neverparse/public.hh,
src/priv/accmap.hh, src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
src/saba/sabacomplementtgba.hh, src/sabatest/sabacomplementtgba.cc,
src/ta/ta.hh, src/ta/taexplicit.cc, src/ta/taexplicit.hh,
src/ta/taproduct.cc, src/ta/taproduct.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/taalgos/dotty.cc, src/tgba/bddprint.cc,
src/tgba/bddprint.hh, src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.hh,
src/tgba/tgbagraph.hh, src/tgba/tgbakvcomplement.cc,
src/tgba/tgbakvcomplement.hh, src/tgba/tgbaproduct.cc,
src/tgba/tgbaproduct.hh, src/tgba/tgbaproxy.cc, src/tgba/tgbaproxy.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgba/tgbascc.cc, src/tgba/tgbascc.hh, src/tgba/tgbasgba.cc,
src/tgba/tgbasgba.hh, src/tgba/tgbaunion.cc, src/tgba/tgbaunion.hh,
src/tgba/wdbacomp.cc, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/compsusp.hh, src/tgbaalgos/degen.cc,
src/tgbaalgos/dtbasat.cc, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/randomgraph.hh, src/tgbaalgos/save.cc,
src/tgbaalgos/translate.cc, src/tgbaalgos/translate.hh,
src/tgbaalgos/word.cc, src/tgbaalgos/word.hh, src/tgbaparse/public.hh,
src/tgbaparse/tgbaparse.yy, src/tgbatest/complementation.cc,
src/tgbatest/explprod.cc, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltlprod.cc, src/tgbatest/maskacc.cc,
src/tgbatest/powerset.cc, src/tgbatest/randtgba.cc,
src/tgbatest/taatgba.cc, src/tgbatest/tgbaread.cc,
src/tgbatest/tripprod.cc, wrap/python/ajax/spot.in,
wrap/python/tests/alarm.py, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/parsetgba.py: Update to use bdd_dict_ptr and
make_bdd_dict().

* src/tgba/bdddict.cc, src/tgba/bdddict.hh
(register_all_propositions_of): New method.
* src/tgba/tgbagraph.hh (copy_ap_of): New method.
* src/dstarparse/dra2ba.cc, src/dstarparse/nra2nba.cc,
src/dstarparse/nsa2tgba.cc, src/tgbaalgos/degen.cc,
src/tgbaalgos/dtbasat.cc, src/tgbaalgos/dtgbasat.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/minimize.cc, src/tgbaalgos/powerset.cc,
src/tgbaalgos/sccfilter.cc, src/tgbaalgos/simulation.cc,
src/tgbaalgos/stripacc.cc: Simplify using copy_ap_of.

* src/tgba/tgbagraph.cc: New file.
* src/tgba/Makefile.am: Adjust.
* src/tgba/tgbagraph.hh (set_single_acceptance_set,
new_acc_transition): New methods.
(set_acceptance_conditions, merge_transitions): Move body
to tgbagraph.cc.
* src/tgbaalgos/complete.cc, src/tgbaalgos/degen.cc,
src/tgbaalgos/dtbasat.cc, src/tgbaalgos/dtgbacomp.cc,
src/neverparse/neverclaimparse.yy, src/dstarparse/dra2ba.cc,
src/dstarparse/nra2nba.cc: Simplify using these new methods.