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2010-02-02  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Add SVG output and language containment options to the cgi script.

	* wrap/python/cgi-bin/ltl2tgba.in (new): Mark new options as new.
	(svg_output, reduce_langcout): Add these new options.
	(render_dot): Support svg_output.

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2010-02-02  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* NEWS: Typo.

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2010-02-01  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* NEWS, configure.ac: Bump version to 0.5a.

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2010-02-01  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Release Spot 0.5.

	* NEWS, configure.in: Bump version to 0.5.

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2010-01-31  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* doc/Makefile.am ($(srcdir)/stamp): Do not depend on dot
	explicitly, otherwise the documentation is always built and
	distcheck fails.

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2010-01-31  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	More Doxygen fixes.

	* src/sabaalgos/sabareachiter.hh (process_link): Document argument SI.
	* src/eltlparse/public.hh (format_parse_errors): Remove the
	non-existing eltl_string argument from the description.
	(parse_file): Fix name of parameters in documentation.

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2010-01-31  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Build doxygen pictures with libgd to reduce their size.

	Doxygen only knows how to call dot with -Tpng, while using
	-Tpng:gd produces pictures that are 10 times smaller.  Use a
	simple wrapper around dot to simplify this.

	* doc/dot.in: New file, that wrap the system's dot and replace
	-Tpng by -Tpng:gd.
	* doc/Makefile.am ($(srcdir)/stamp): Depend on dot.
	* doc/Doxyfile.in: Update to 1.6.2.
	(DOT_PATH): Set to @srcdir@ to use doc/dot instead of the
	system's dot.
	* configure.ac: Find the absolute path of dot, and generate
	the doc/dot script.

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2010-01-31  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	More Doxygen fixes.

	* src/tgba/tgbakvcomplement.hh: Use \verbatim around the bibtex
	entry.
	* src/saba/sabacomplementtgba.hh: Use latin1.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/split-product/Makefile.am (nodist_noinst_DATA): Do not
	depend on files that cannot be built.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Replace spot::ltl_file by a rewritten spot::ltl::ltl_file.

	* src/tgba/tgbafromfile.cc, src/tgba/tgbafromfile.hh: Delete these
	files.
	* src/tgba/Makefile.am: Remove them.
	* src/ltl/ltlparse/ltlfile.hh, src/ltl/ltlparse/ltlfile.cc: New
	files.
	* src/ltl/ltlparse/Makefile.am: Add them.
	* bench/scc-stats/stats.cc, bench/split-product/cutscc.cc: Rewrite
	using the new class.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Check for missing Copyright blurbs, and add them.

	* src/sanity/style.test: Check for missing Copyrights blurbs.
	* src/sanity/Makefile.am: Run style.test before includes.test.
	* iface/gspn/dcswave.test, iface/gspn/dcswaveeltl.test,
	iface/gspn/dcswavefm.test, iface/gspn/dcswaveltl.test,
	iface/gspn/simple.test, iface/gspn/udcsefm.test,
	iface/gspn/udcseltl.test, iface/gspn/udcsfm.test,
	iface/gspn/udcsltl.test, iface/nips/nipstest/dotty.test,
	iface/nips/nipstest/emptiness.test, src/eltltest/acc.test,
	src/eltltest/nfa.test, src/saba/sabacomplementtgba.cc,
	src/sabatest/sabacomplementtgba.cc, src/tgbatest/eltl2tgba.test,
	src/tgbatest/taatgba.test: Add missing Copyright blurb.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* NEWS: More text.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Touch up some doxygen comments and copyrights.

	* eltlparse/public.hh, saba/saba.hh, tgba/tgbakvcomplement.hh,
	tgba/tgbasafracomplement.hh, tgbaalgos/eltl2tgba_lacim.cc,
	tgbaalgos/eltl2tgba_lacim.hh, tgbaalgos/ltl2taa.hh: Comment
	changes.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Add SCC pruning options to the CGI script.

	* wrap/python/cgi-bin/ltl2tgba.in: Add options to symbolically
	prune unaccepting SCCs in LaCIM, and explicitely pruns unaccepting
	SCCs in all algorithms.
	* src/tgbaalgos/reductgba_sim.hh: Conceal most of the file to
	SWIG.
	* wrap/python/spot.i: Include reductgba_sim.hh.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/evtgbatest/ltl2evtgba.test: Replace * by &.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Make it possible to use the cgi script without installing a web
	server.

	* wrap/python/cgi-bin/ltl2tgba.in: Starts a web server if the
	script is not called as a CGI.  Arrange to load libraries from
	the build directory.  Create the spotimg/ if needed when run as
	a web server.
	* wrap/python/cgi-bin/Makefile.am: Adjust build rule and clean
	the spotimg directory.
	* wrap/python/cgi-bin/README, NEWS: Update.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	More * -> & replacements.

	* src/ltltest/parse.test, src/ltltest/syntimpl.test: Replace * by &.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Remove the theoretically bogus "containment" option of ltl2tgba_fm.

	* src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_fm.hh:
	Remove the containment option.
	* src/tgbafromfile.cc, src/tgbafromfile.hh: Remove the
	containment_ member.
	* src/tgbatest/ltl2tgba.cc (syntax): Remove -c option for
	FM algorithm, use it exclusively for TAA.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgba/tgbasafracomplement.hh: Add missing copyright and
	fix some comments.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Rename tgba_complement as tgba_kv_complement.

	* src/tgba/tgbacomplement.hh, src/tgba/tgbacomplement.cc: Rename
	as...
	* src/tgba/tgbakvcomplement.hh, src/tgba/tgbakvcomplement.cc:
	... these. It makes more sense since we also have
	tgba_safra_complement.
	* src/tgba/Makefile.am, src/tgbatest/complement.cc, NEWS: Adjust.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Do not recognize "*" as "and".  This leaves room for an
	implementation of rational operators in a future version.

	* src/ltlparse/ltlscan.ll: Do not recognize "*".
	* wrap/python/cgi-bin/ltl2tgba.in: Undocument it.
	* NEWS: Mention this.
	* src/tgbatest/kv.test, src/tgbatest/ltl2tgba.test,
	src/tgbatest/reductgba.test: Replace "*" by "&".

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Make Couvreur/FM the default translation.

	* src/tgbatest/ltl2tgba.cc (syntax, main): Do it.
	* NEWS: Mention it.
	* src/tgbatest/emptchk.test: Add missing -l.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Overhaul LaCIM's ELTL options.

	* src/tgbatest/ltl2tgba.cc (syntax, main): Introduce -le to select
	this algorithm and -lo to add the default LTL operators.  This
	replace the undocumented hack to add LTL operators when the
	formula with read for command-line, or the automaton was output
	for LBTT.
	* src/tgbatest/eltl2tgba.test, src/tgbatest/spotlbtt.test: Update
	call syntax.
	* NEWS: Mention -le, -lo, and -taa.

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2010-01-30  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Touch up -R3b handling.

	* src/tgbatest/ltl2tgba.cc (syntax): Move -R3b with the other
	LaCIM options.
	(main): Speak of "symbolic SCC pruning" instead of "deleting
	unaccepting SCC", and do that right after the translation, before
	degeneralization.  Also error out when -R3b is used on non
	symbolic automata.

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2010-01-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Update some text files for upcoming 0.5.

	* NEWS: Update for upcoming 0.5.
	* HACKING: Update Automake requirement.
	* README: Mention the mailing list.
	* bench/ltlcounter/README: More text.
	* configure.ac: Report bugs to spot@lrde.epita.fr.

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2010-01-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Rename wrap/python/cgi/ as wrap/python/cgi-bin/.

	* wrap/python/cgi/: Rename as ...
	* wrap/python/cgi-bin/: ... this.
	* configure.ac, spot/wrap/python/Makefile.am, README: Adjust.

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2010-01-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/gtec/gtec.hh: Fix copyright.

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2010-01-29  Felix Abecassis <felix.abecassis@lrde.epita.fr>

	* src/tgba/taatgba.cc, src/tgba/taatbga.hh: Fix a memory issue on
	Darwin.

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2010-01-25  Damien Lefortier <dam@lrde.epita.fr>

	* wrap/python/cgi/ltl2tgba.in, wrap/python/spot.i: Add a new
	translation algorithm: Tauriainen/TAA.

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2010-01-25  Damien Lefortier <dam@lrde.epita.fr>

	* wrap/python/cgi/ltl2tgba.in: Use the uuid Python module instead
	of the UNIQUE_ID environment variable to avoid being
	Apache-specific.

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2010-01-24  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	Fix copyrights.

	* bench/Makefile.am, bench/gspn-ssp/Makefile.am,
	bench/gspn-ssp/defs.in, bench/scc-stats/Makefile.am,
	bench/split-product/Makefile.am, configure.ac,
	iface/Makefile.am, iface/gspn/Makefile.am, iface/gspn/ssp.hh,
	iface/nips/Makefile.am, iface/nips/common.cc,
	iface/nips/common.hh, iface/nips/dottynips.cc,
	iface/nips/nips.cc, iface/nips/nips.hh, src/Makefile.am,
	src/eltlparse/Makefile.am, src/eltlparse/eltlparse.yy,
	src/eltlparse/eltlscan.ll, src/eltlparse/fmterror.cc,
	src/eltlparse/parsedecl.hh, src/eltltest/Makefile.am,
	src/eltltest/defs.in, src/eltltest/nfa.cc, src/evtgba/evtgba.hh,
	src/evtgba/product.cc, src/evtgba/product.hh,
	src/evtgbaalgos/tgba2evtgba.cc, src/evtgbaparse/Makefile.am,
	src/evtgbaparse/evtgbaparse.yy, src/evtgbatest/defs.in,
	src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.cc,
	src/evtgbatest/ltl2evtgba.test, src/evtgbatest/product.cc,
	src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
	src/evtgbatest/readsave.test, src/ltlast/atomic_prop.cc,
	src/ltlast/atomic_prop.hh, src/ltlast/binop.cc,
	src/ltlast/binop.hh, src/ltlast/constant.cc,
	src/ltlast/constant.hh, src/ltlast/formula.cc,
	src/ltlast/formula.hh, src/ltlast/formula_tree.cc,
	src/ltlast/formula_tree.hh, src/ltlast/multop.cc,
	src/ltlast/multop.hh, src/ltlast/nfa.cc, src/ltlast/nfa.hh,
	src/ltlast/unop.cc, src/ltlast/unop.hh, src/ltlenv/declenv.cc,
	src/ltlenv/declenv.hh, src/ltlenv/environment.hh,
	src/ltlparse/Makefile.am, src/ltlparse/ltlparse.yy,
	src/ltltest/Makefile.am, src/ltltest/defs.in,
	src/ltltest/equals.cc, src/ltltest/equals.test,
	src/ltltest/lunabbrev.test, src/ltltest/nenoform.test,
	src/ltltest/parse.test, src/ltltest/parseerr.test,
	src/ltltest/randltl.cc, src/ltltest/readltl.cc,
	src/ltltest/reduccmp.test, src/ltltest/syntimpl.cc,
	src/ltltest/syntimpl.test, src/ltltest/tostring.cc,
	src/ltltest/tostring.test, src/ltltest/tunabbrev.test,
	src/ltltest/tunenoform.test, src/ltlvisit/basicreduce.cc,
	src/ltlvisit/clone.cc, src/ltlvisit/clone.hh,
	src/ltlvisit/contain.cc, src/ltlvisit/destroy.cc,
	src/ltlvisit/destroy.hh, src/ltlvisit/lunabbrev.cc,
	src/ltlvisit/nenoform.cc, src/ltlvisit/randomltl.cc,
	src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
	src/ltlvisit/tostring.cc, src/misc/bddalloc.cc,
	src/misc/bddop.cc, src/misc/bddop.hh, src/misc/freelist.hh,
	src/misc/hash.hh, src/misc/minato.cc, src/misc/minato.hh,
	src/misc/optionmap.cc, src/misc/timer.cc, src/misc/timer.hh,
	src/saba/Makefile.am, src/saba/explicitstateconjunction.cc,
	src/saba/explicitstateconjunction.hh, src/saba/saba.cc,
	src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
	src/saba/sabacomplementtgba.hh, src/saba/sabastate.hh,
	src/saba/sabasucciter.hh, src/sabaalgos/Makefile.am,
	src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh,
	src/sabaalgos/sabareachiter.cc, src/sabaalgos/sabareachiter.hh,
	src/sabatest/Makefile.am, src/sabatest/defs.in,
	src/sanity/Makefile.am, src/tgba/Makefile.am,
	src/tgba/bdddict.cc, src/tgba/bddprint.cc,
	src/tgba/formula2bdd.cc, src/tgba/state.hh,
	src/tgba/succiterconcrete.cc, src/tgba/taatgba.hh,
	src/tgba/tgba.hh, src/tgba/tgbabddconcretefactory.cc,
	src/tgba/tgbabddconcretefactory.hh, src/tgba/tgbacomplement.cc,
	src/tgba/tgbacomplement.hh, src/tgba/tgbaexplicit.cc,
	src/tgba/tgbaexplicit.hh, src/tgba/tgbaproduct.cc,
	src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
	src/tgba/tgbasafracomplement.cc, src/tgba/tgbasgba.cc,
	src/tgba/tgbasgba.hh, src/tgba/tgbaunion.cc,
	src/tgba/tgbaunion.hh, src/tgbaalgos/dupexp.cc,
	src/tgbaalgos/eltl2tgba_lacim.cc,
	src/tgbaalgos/eltl2tgba_lacim.hh, src/tgbaalgos/emptiness.cc,
	src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/ltl2taa.cc,
	src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_lacim.cc,
	src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
	src/tgbaalgos/powerset.cc, src/tgbaalgos/reachiter.cc,
	src/tgbaalgos/reachiter.hh, src/tgbaalgos/reductgba_sim.cc,
	src/tgbaalgos/reductgba_sim.hh,
	src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/stats.cc,
	src/tgbaalgos/stats.hh, src/tgbaparse/Makefile.am,
	src/tgbaparse/tgbaparse.yy, src/tgbatest/Makefile.am,
	src/tgbatest/bddprod.test, src/tgbatest/complementation.cc,
	src/tgbatest/complementation.test, src/tgbatest/defs.in,
	src/tgbatest/dfs.test, src/tgbatest/dupexp.test,
	src/tgbatest/explicit.cc, src/tgbatest/explicit.test,
	src/tgbatest/explpro3.test, src/tgbatest/explpro4.test,
	src/tgbatest/explprod.cc, src/tgbatest/explprod.test,
	src/tgbatest/ltl2neverclaim.test, src/tgbatest/ltl2tgba.cc,
	src/tgbatest/ltl2tgba.test, src/tgbatest/ltlprod.cc,
	src/tgbatest/ltlprod.test, src/tgbatest/mixprod.cc,
	src/tgbatest/mixprod.test, src/tgbatest/powerset.cc,
	src/tgbatest/readsave.cc, src/tgbatest/readsave.test,
	src/tgbatest/reduccmp.test, src/tgbatest/reductgba.cc,
	src/tgbatest/reductgba.test, src/tgbatest/taatgba.cc,
	src/tgbatest/tgbaread.cc, src/tgbatest/tgbaread.test,
	src/tgbatest/tripprod.cc, src/tgbatest/tripprod.test,
	wrap/python/cgi/ltl2tgba.in, wrap/python/tests/ltl2tgba.py,
	wrap/python/tests/ltlparse.py, wrap/python/tests/ltlsimple.py:
	Fix copyrights.

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2010-01-24  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/ltl2tgba_fm.cc: More comments.

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2010-01-24  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

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	Check that all directories are documented.

	* src/sanity/readme.test: For each AC_OUTPUT Makefile, check that
	the directory is documented in README.  Also skip non distributed
	directories in readme.test.
	* README: Fit on 80 columns.

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	* README: Typo.

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2010-01-24  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/sanity/Makefile.am (EXTRA_DIST): Distribute readme.test.

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2010-01-24  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* README: Add descriptions for subdirectories of bench/, src/sanity,
	and src/kripke.

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2010-01-24  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	* src/sanity/readme.test: A script to check whether all the
	directories referenced in README exist.
	* src/sanity/Makefile.am: Adjust to call `readme.test' when make
	check is invoked.

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2010-01-24  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	Update the README.

	* README: Reference src/saba/, src/sabaalgos/, src/sabatest/,
	iface/nips/, iface/nips/nipstest/ and iface/nips/nips_vm/.

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2010-01-22  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Turn parse_error_list into an opaque type for Swig.  This
	kills a memory leak warning from swig/python.

	* src/ltlparse/public.hh (parse_error_list): Declare
	as an empty struct for Swig.
	* wrap/python/tests/ltlparse.py: Fix copyright.

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2010-01-22  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix the computation of the length of multops.

	* src/ltlvisit/length.cc (visit(multop*)): New function. "a & b &
	c" has length 5, not 4, even though it is stored as And(a,b,c).
	This caused reduc.test to fail on some formulae.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Please the style checks...

	* src/tgbaalgos/randomgraph.cc: Fix the copyright and make it fit
	on 80 columns.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/ltltest/reduc.cc (main): Fix harmless memory leak introduced
	today.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix taa_tgba_formula's destructor.

	* src/tgba/taatgba.cc (taa_tgba_formula::~taa_tgba_formula):
	Really destroy all formulae, not only half of them.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/randtgba.cc: Do not include <string> twice.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Speedup reduc.test by not spawning one process per formula.

	* src/ltltest/reduc.cc: Add an option -f to read a lost of
	formulae from a file.  Running a process for each formula was
	too slow.  Also add an option -h to hide reduced formulae.
	* src/ltltest/reduc.test: Simplify accordingly.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Move the last test from emptchk.test to emptchke.test.

	* src/tgbatest/emptchk.test: Move the newly added test ...
	* src/tgbatest/emptchke.test: ... here, with other explicit test.
	Also test more algorithms.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix a memory leak in Cou99 statistics.

	* src/tgbaalgos/gtec/ce.cc (couvreur99_check_result::acss_states):
	Delete the iterator after using it.
	* src/tgbatest/emptchkr.test: Run 'randtgba -z' with valgrind too.

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2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix a longstanding bug in our implementation of GV04.

	* src/tgbaalgos/gv04.cc (push): Fix the tracking of the accepting
	link.  This bug was discovered on a random generated graph with
	a complex accepting cycle.
	* src/tgbatest/emptchk.test: Add the troublesome graph as
	test case.

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2010-01-20  Damien Lefortier <dam@lrde.epita.fr>

	When iterating a hash_map, be careful not to delete i->first
	before doing ++i to avoid memory issues.

	* src/tgba/taatgba.cc, src/tgba/taatgba.hh,
	src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh: Fix them.

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2010-01-20  Damien Lefortier <dam@lrde.epita.fr>

	Minor fixes to compile with GCC 3.3

	* src/ltlast/automatop.cc, src/ltlast/automatop.hh: Rename nfa as
	get_nfa to avoid a name clash with the `nfa' class.
	* src/ltlvisit/clone.cc, src/ltlvisit/nenoform.cc,
	src/ltlvisit/tostring.cc, src/tgbaalgos/eltl2tgba_lacim.cc: Use
	get_nfa instead of nfa.
	* src/tgba/tgbasafracomplement.cc: Don't use a
	const_reverse_iterator.

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2010-01-20  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Remove some non-determinism in random_graph()

	* src/tgbaalgos/randomgraph.cc (random_graph): Revert the part of
	the patch from 2007-02-06 which silently replaced the use of state
	index by state pointers.  Storing states pointer in this map cause
	some non-determinism because of the memory layout.  It was almost
	impossible to reproduce bugs found by tests based on randtgba.

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2010-01-19  Damien Lefortier <dam@lrde.epita.fr>
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	* src/tgbaalgos/ltl2taa.cc: Fix the previous patch.

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2010-01-18  Damien Lefortier <dam@lrde.epita.fr>

	* src/tgba/taatgba.cc, src/tgba/taatgba.hh: Fix memory issues
	occuring when labels are pointers.
	* src/tgbaalgos/ltl2taa.cc: Fix a bug.
	* src/tgbatest/ltl2tgba.cc: Fix a bug.

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2010-01-16  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	* src/saba/sabacomplementtgba.cc: Fix a bug.

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2010-01-16  Damien Lefortier <dam@lrde.epita.fr>

	Use taa_tgba_formula instead of taa_tgba_string in ltl_to_taa to
	speed up a little the translation.

	* src/tgbaalgos/ltl2taa.cc: Adjust.  Also fix a bug with
	acceptance conditions in all_n_tuples.
	* src/tgba/taatgba.cc, src/tgba/taatgba.hh: Adjust.

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2010-01-16  Damien Lefortier <dam@lrde.epita.fr>

	Introduce taa_tgba_labelled<label> so that we can build
	taa_tgba instances labelled by other objects than strings
	in the same way Alexandre did for tgba_explicit.

	* src/tgba/taatgba.cc, src/tgba/taatgba.hh: Split taa_tgba in two
	levels: taa_tgba with no label and taa_tgba_labelled templated by
	the type of the label.  Define taa_tgba_string (with the interface
	of the former taa_tgba class) and taa_tgba_formula for future use
	in ltl2taa.cc.
	* src/tgbaalgos/ltl2taa.cc, src/tgbatest/taatgba.cc: Adjust to use
	taa_tgba_string.

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2010-01-06  Damien Lefortier <dam@lrde.epita.fr>

	Fix a longstanding bug reported by Guillaume Sadegh.

	* src/eltlparse/eltlscan.ll: Fix a typo.

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2010-01-05  Damien Lefortier <dam@lrde.epita.fr>

	Merge eltl2tgba.cc into ltl2tgba.cc.

	* src/tgbatest/eltl2tgba.cc: Remove.
	* src/tgbatest/Makefile.am: Adjust.
	* src/tgbatest/ltl2tgba.cc: New option: -xltl to translate an
	extended LTL instead of an LTL, a feature previously offered by
	eltl2tgba.cc. Also: -R3b to use delete_unaccepting_scc.
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	* src/tgbatest/spotlbtt.test, src/tgbatest/eltl2tgba.test: Adjust.
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2009-11-10  Damien Lefortier <dam@lrde.epita.fr>

	* src/tgba/tgbabddcoredata.cc (delete_unaccepting_scc): Fix a bug.
	* src/tgbatest/spotlbtt.test: Use the above function with LaCIM
	for ELTL which greatly reduce the size of the automata!

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2009-12-11  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/misc/timer.hh (timer::timer): Initialize running...

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2009-12-09  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/Makefile.am (SUBDIRS): Fix missing ".", mistakenly removed
	by previous patch.

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2009-11-30  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	An algorithm to complement TGBA into SABA.

	* src/saba/sabacomplementtgba.hh,
	src/saba/sabacomplementtgba.cc: New.  The algorithm.
	* src/saba/Makefile.am: Adjust.
	* src/sabatest/sabacomplementtgba.cc, src/sabatest/Makefile.am,
	src/sabatest/defs.in: New.  Test the algorithm.
	* configure.ac, src/Makefile.am: Adjust to the new directory
	`sabatest'.

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2009-11-30  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	Add a new type of automata: State-labeled Alternating Bchi
	Automata (SABA).

	* src/saba/saba.hh, src/saba/saba.cc, src/saba/sabastate.hh,
	src/saba/sabasucciter.hh: New.  Interface for
	SABA (State-labeled Alternating Bchi Automata).
	* src/saba/explicitstateconjunction.cc,
	src/saba/explicitstateconjunction.hh: New.  Default
	implementation for a conjunction of states.
	* src/saba/Makefile.am: New.
	* src/Makefile.am, configure.ac: Adjust.
	* src/sabaalgos/sabareachiter.cc,
	src/sabaalgos/sabareachiter.hh: New.  Iterate over all reachable
	states of a spot::saba.
	* src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh: New.
	Print reachable states in dot format.
	* src/sabaalgos/Makefile.am: New.

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2009-11-27  Guillaume Sadegh  <sadegh@lrde.epita.fr>

	Rename the class taa as taa_tgba.

	* src/tgba/taa.cc, src/tgba/taa.hh: Rename as ...
	* src/tgba/taatgba.cc, src/tgba/taatgba.hh: ... these, and
	rename the class taa as taa_tgba.
	* src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2taa.hh,
	src/tgbaalgos/Makefile.am: Adjust.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/Makefile.am: Adjust.
	* src/tgbatest/taa.test: Rename as ...
	* src/tgbatest/taatgba.test ... this.
	* src/tgbatest/taa.cc: Rename as ...
	* src/tgbatest/taatgba.cc ... this, and adjust.

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2009-11-26  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltl2tgba.cc (main): Fix typo to re-enable
	reductions by simulation.

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2009-11-26  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* m4/buddy.m4 (AX_CHECK_BUDDY): Check for bdd_satprefix, the
	latest function added to BuDDy.

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2009-11-25  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltl2tgba.cc (main): Stop the SCC timer.  I mean
	really stop it!

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2009-11-24  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Detect running timers, and stop a timer in ltl2tgba.

	* src/misc/timer.hh (time_info::running): New attribute.
	(time_info::start, time_info::stop): Update and check
	time_info::running.
	* src/misc/timer.cc (timer_map::print): Mark running timers with
	a "+" in the output.
	* src/tgbatest/ltl2tgba.cc (main): Rename the name of the timers
	for SCC and simulation reduction, and actually stop the SCC timer.

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2009-11-23  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/sccfilter.cc (create_transition): Do not clone
	the same node twice when dealing with loops.

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2009-11-23  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Use bdd_satprefix() to speedup minato on BDDs that are almost cubes.

	* src/misc/minato.cc (minato_isop::minato_isop): Call bdd_satprefix.
	(minato_isop::next): Avoid useless intermediate variables.
	* src/misc/minato.hh: Typo in comments.

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2009-11-23  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Specialize scc_filter when handling tgba_explicit_formula automata.

	If the input is a tgba_explicit_formula we can output a
	tgba_explicit_formula too, and we want to do that because it is
	more space efficient.

	* src/tgba/tgbaexplicit.hh (get_label): New method.
	* src/tgbaalgos/sccfilter.cc (create_transition): New function,
	to handle tgba_explicit_formula and tgba_explicit_string output
	differently.
	(filter_iter): Template it on the output tgba type, and adjust
	to call create_transition.
	(scc_filter): Use filter_iter<tgba_explicit_formula> or
	filter_iter<tgba_explicit_string> depending on the input tgba
	type.

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2009-11-20  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Strip useless acceptance conditions in scc_filter().

	A useless acceptance conditions is one that is always implied by
	another.

	* src/misc/bddop.hh, src/misc/bddop.cc
	(compute_neg_acceptance_conditions): New function.
	* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
	(set_acceptance_conditions): New function.
	* src/tgbaalgos/scc.cc (build_map, build_scc_stats, dump_scc_dot):
	Keep track of useful acceptance conditions.
	(useful_acc_of): New function.
	* src/tgbaalgos/scc.hh (scc_stats, scc_map::scc::useful_scc): New
	attributes.
	* src/tgbaalgos/sccfilter.cc (filter_iter): Adjust to filter
	useless acceptance conditions.
	(scc_filter): Compute useful acceptance conditions and pass them
	to filter_iter.

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2009-11-20  Alexandre Duret-Lutz  <adl@va-et-vient.net>

	* src/tgbaalgos/sccfilter.cc (scc_filter): Merge transitions
	after removing acceptance conditions.

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2009-11-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Remove prune_scc(), prune_acc(), and related fonctions.

	* src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh (prune_scc,
	prune_acc, remove_component, compute_scc, remove_acc,
	is_not_accepting, delete_scc, is_terminal, remove_scc,
	display_scc): Remove anything related to the simplification of
	SCCs.

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2009-11-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Replace prune_scc() by scc_filter().

	prune_scc() leaked memory and failed to remove chains of useless SCCs.

	* src/tgbaalgos/reductgba_sim.cc (reduc_tgba_sim): Call
	scc_filter() instead of prune_scc(), and do it before running
	any simulation-based reduction.
	* src/tgbaalgos/reductgba_sim.hh (reduc_tgba_sim): Return a const
	tgba*.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/reductgba.cc: Call
	scc_filter() instead of prune_scc().
	* src/tgbatest/scc.test: Add two more tests that failed with
	prune_scc().

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2009-11-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Quick implementation of a "useless SCC" filter using scc_map.

	* src/tgbaalgos/sccfilter.hh, src/tgbaalgos/sccfilter.cc: New
	files.
	* src/tgbaalgos/Makefile.am: Add them.

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2009-11-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix acceptance check in scc_map: trivial SCCs are not accepting.
	Also compute useless SCCs.

	* src/tgbaalgos/scc.cc (scc_map::scc::trivial): New field.
	(scc_stats::useless_scc_map): New field.
	* src/tgbaalgos/scc.cc (scc_map::build_map): Mark SCCs that are
	not trivial.
	(scc_map::accepting): Always return false for trivial SCC.
	(build_scc_stats): Fill in useless_scc_map.

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2009-11-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Make it easy to filter states while iterating over an automaton.

	* src/tgbaalgos/reachiter.hh (tgba_reachable_iterator::want_state):
	New method.
	* src/tgbaalgos/reachiter.cc (tgba_reachable_iterator::want_state):
	Implement it.
	(tgba_reachable_iterator::run): Call want_state before processing
	a state.

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2009-11-17  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/cutscc.cc (cut_scc): Pass `s' by reference instead
	of by pointer.
	* src/tgbaalgos/cutscc.cc, src/tgbaalgos/cutscc.hh: Fix copyright
	header.

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2009-11-13  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Replace the hash key construction of LTL formulae by a simple
	counter updated each time we create a new (unique) formula.

	Doing so saves a lot of memory during the translation of the
	ltlcounter formulae, because the formulae are quite big and
	storing a string representation of each formula on its node was a
	bad idea.  For instance with n=12, the translation now uses 40MB
	where it used 290MB.  (Note: in both cases, 20MB is being used by
	the BDD cache.)

	* src/ltlast/formula.hh (hash_key_): Rename as ...
	(count_): ... this.
	(hash): Adjust.
	(max_count): New static variable to count the number of
	formulae created.
	(formula): Update max_count and set count_.
	(dump): Make it a virtual pure method.
	(set_key_): Remove.
	(formula_ptr_less_than): Speed up and return false when
	the two formula pointer are equal.
	* src/ltlast/formula.cc (set_key_, dump): Remove.
	* src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
	src/ltlast/automatop.cc, src/ltlast/automatop.hh,
	src/ltlast/binop.cc, src/ltlast/binop.hh, src/ltlast/constant.cc,
	src/ltlast/constant.hh, src/ltlast/multop.cc,
	src/ltlast/multop.hh, src/ltlast/unop.cc, src/ltlast/unop.hh:
	Empty the constructor (do not precompute the dump_ anymore),
	and add a dump() implementation.

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2009-11-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Use -l wherever we where expecting ltl2tgba to default to LaCIM.

	* bench/ltl2tgba/algorithms: Use -l for all LaCIM invocations.
	* src/tgbatest/dupexp.test, src/tgbatest/emptchk.test,
	src/tgbatest/spotlbtt.test: Likewise.

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2009-11-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Cleanup the help of ltl2tgba.

	* src/tgbatest/ltl2tgba.cc (syntax): Reorganize the help text, so
	that we can find options without resorting to grep...  Also
	cleanup the program name if it is a libtool wrapper.

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2009-11-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltl2tgba.cc (-l): New option to select the lacim
	translation.  It still is the default translation.
	(opt_fm, opt_taa): Replace these two variables by ...
	(translation): ... this enum.  And use a switch to call the
	correct translation.

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2009-11-11  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Remove python bindings for ltl::clone and ltl::destroy.

	* wrap/python/spot.i: Do not include clone.hh and destroy.hh.

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2009-11-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Typo from a previous patch.

	* src/tgbaalgos/ltl2tgba_fm.cc (ltl_to_tgba_fm): Fix a typo
	introduced three patches ago in the handling of unobserved events.

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2009-11-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Do not comment states in the never claim by default.  It takes too
	much time when the formula is large, and it is useless when the
	purpose is model-checking with Spin.

	* src/tgbaalgos/neverclaim.hh (never_claim_reachable): Add the
	comments option.
	* src/tgbaalgos/neverclaim.cc (never_claim_bfs,
	never_claim_reachable): Honor the comment option.
	* src/tgba/tests/ltl2tgba.cc (-N): Do not comment states.
	(-NN) New option to output a commented never claim.

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2009-11-10  Damien Lefortier <dam@lrde.epita.fr>

	* src/tgba/taa.cc, src/tgba/taa.hh: Fix it.
	* src/tgbaalgos/ltl2taa.cc: Do NOT use the same bdd_dict for both
	the translation and the language containment checker.
	* src/tgbatest/spotlbtt.test: Update TAA related tests.

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2009-11-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Use tgba_explicit_formula instead of tgba_explicit_string in FM.

	This gives a nice speedup (>1.4) in the ltlcounter benchmark,
	because we no longer have to generate a copy the string
	representations of the LTL formulae.

	* src/tgbaalgos/ltl2tgba_fm.cc: Adjust.  Also get rid of the
	formulae_seen map, since we can now ask the tgba_explicit_formula
	if it knows the state.

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2009-11-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Ease debugging of LTL formulae leaks.

	* src/tgbatest/ltl2tgba.cc: Dump all LTLinstances with their
	reference count.

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2009-11-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Introduce tgba_explicit_labelled<label> so that we can build
	tgba_explicit instances labelled by other objects than strings.

	* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh:
	Split tgba_explicit in two levels: tgba_explicit with unlabelled
	states, and tgba_explicit_labelled templated by the type of
	the label.  Define tgba_explicit_string (with the interface
	of the former tgba_explicit class) and tgba_explicit_formula
	for future use in ltl2tgba.cc.
	* src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
	src/tgbaalgos/cutscc.cc, src/tgbaalgos/dupexp.cc,
	src/tgbaalgos/emptiness.cc, src/tgbaalgos/ltl2tgba_fm.cc,
	src/tgbaalgos/powerset.cc, src/tgbaalgos/randomgraph.cc,
	src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
	src/tgbatest/explicit.cc, src/tgbatest/ltl2tgba.cc: Adjust to
	use tgba_explicit_string when appropriate.

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2009-11-09  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Do not use the Boost macro from the Autoconf macro archive.

	* m4/boost.m4: Rewrite like I already did in Vaucanson.

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2009-11-09  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltlcounter.test (run): Do not run with n=12, as
	the test case might become too slow for the autobuilder.

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2009-11-06  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Add a benchmark using Kristin Y. Rozier's LTLcounter scripts.

	* bench/ltlcounter/README, bench/ltlcounter/run,
	bench/ltlcounter/plot.gnu, bench/ltlcounter/defs.in,
	bench/ltlcounter/Makefile.am: New files.
	* bench/Makefile.am (SUBDIRS): Add ltlcounter.
	* configure.ac (AC_CONFIG_FILES): Adjust.
	* THANKS: Add her.

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2009-11-06  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Use a timer to clock the different phases of the translation.

	* src/tgbatest/ltl2tgba.cc: Add option -T.

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2009-11-08  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Deprecate ltl::destroy(f) in favor of f->destroy()

	* src/ltlast/formula.cc, src/ltlast/formula.hh (formula::clone):
	Transform this static function into a member function.
	* src/ltlvisit/destroy.hh (destroy): Document and declare as
	deprecated.
	* bench/split-product/cutscc.cc, iface/gspn/ltlgspn.cc,
	src/eltlparse/eltlparse.yy, src/eltltest/acc.cc,
	src/evtgbaalgos/tgba2evtgba.cc, src/evtgbatest/ltl2evtgba.cc,
	src/ltlast/automatop.cc, src/ltlast/binop.cc,
	src/ltlast/multop.cc, src/ltlast/unop.cc, src/ltlenv/declenv.cc,
	src/ltlenv/declenv.hh, src/ltlparse/ltlparse.yy,
	src/ltltest/equals.cc, src/ltltest/randltl.cc,
	src/ltltest/readltl.cc, src/ltltest/reduc.cc,
	src/ltltest/syntimpl.cc, src/ltltest/tostring.cc,
	src/ltlvisit/destroy.cc src/ltlvisit/basicreduce.cc,
	src/ltlvisit/contain.cc, src/ltlvisit/reduce.cc,
	src/ltlvisit/syntimpl.cc, src/tgba/bdddict.cc,
	src/tgba/bddprint.cc, src/tgba/taa.cc,
	src/tgba/tgbabddconcretefactory.cc, src/tgba/tgbaexplicit.cc,
	src/tgba/tgbafromfile.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
	src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
	src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/neverclaim.cc,
	src/tgbaalgos/randomgraph.cc, src/tgbaparse/tgbaparse.yy,
	src/tgbatest/complementation.cc, src/tgbatest/eltl2tgba.cc,
	src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc,
	src/tgbatest/mixprod.cc, src/tgbatest/randtgba.cc,
	src/tgbatest/reductgba.cc, wrap/python/cgi/ltl2tgba.in,
	wrap/python/tests/ltl2tgba.py, wrap/python/tests/ltlparse.py,
	wrap/python/tests/ltlsimple.py: Adjust destroy() usage, and remove
	the #include "destroy.hh" when appropriate.

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2009-11-08  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Deprecate ltl::clone(f) in favor of f->clone().

	* src/ltlvisit/clone.hh (clone): Document and declare as deprecated.
	* src/ltlast/formula_tree.cc, src/ltlvisit/basicreduce.cc,
	src/ltlvisit/clone.cc, src/ltlvisit/contain.cc,
	src/ltlvisit/lunabbrev.cc, src/ltlvisit/reduce.cc,
	src/ltlvisit/syntimpl.cc, src/tgba/bdddict.cc,
	src/tgba/formula2bdd.cc, src/tgba/tgbabddconcretefactory.cc,
	src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2tgba_fm.cc,
	src/tgbatest/complementation.cc, wrap/python/tests/ltlsimple.py:
	Adjust clone() usage, and remove the #include "clone.hh" when
	appropriate.

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2009-11-08  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Make it possible to clone const formulae.

	* src/ltlast/formula.hh, src/ltlast/formula.cc (clone): Declare
	as const.

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2009-11-08  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Rename formula::ref and formula::unref as formula::clone
	and formula::destroy.

	* src/ltlast/atomic_prop.cc, src/ltlast/automatop.cc,
	src/ltlast/binop.cc, src/ltlast/formula.hh, src/ltlast/formula.cc,
	src/ltlast/multop.cc, src/ltlast/unop.cc, src/ltlenv/declenv.cc,
	src/ltlvisit/basicreduce.cc, src/ltlvisit/clone.cc,
	src/ltlvisit/destroy.cc, src/ltlvisit/nenoform.cc,
	src/ltlvisit/randomltl.cc, src/ltlvisit/reduce.cc,
	src/tgbatest/randtgba.cc: Adjust.

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2009-11-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Change the way references are counted to speedup cloning.

	Before this patch, every time you cloned a formula, the clone
	visitor would recurse into the entire AST to increment the
	reference count of all nodes.  When running ltl2tgba_fm on
	the formula generated by "LTLcounterLinear.pl 8", approx 27% of
	the time was spent in the clone visitor.

	After this patch, cloning a formula is just an increment of the
	reference count of the top node.  Children are decremented only
	when the top node's ref count is decremented to zero.  With this
	change, clone() and destroy() become constant time, the
	ltl2tgba_fm spend only 0.01% of the time cloning formulae.


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