ChangeLog

2008-12-11  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Fix tracking of SCCs on the search stack.

	* src/tgbaalgos/scc.hh (scc::arc_): Rename as ...
	(scc::arc_acc_): ... this.
	(scc::arc_cond_): New attribute.
	* src/tgbaalgos/scc.cc (build_map): Adjust and keep
	track of transitions between SCCs on the search stack.

2008-12-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/scc.hh, src/tgbaalgos/scc.cc: New files.
	* src/tgbaalgos/Makefile.am: Add them.
	* src/tgbatest/ltl2tgba.cc (-k): Also call build_scc_stats().
	(-K): New option that dumps the SCCs for dot.

2008-12-05  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltl2tgba.cc (-k): New option that calls
	stats_reachable(a).dump().
	* src/tgbaalgos/stats.cc, src/tgbaalgos/stats.hh:
	Add tgba_statistics::dump().

2008-08-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/tools/modelgen-create: Remove and fold into ...
	* bench/gspn-ssp/tools/bench-create: ... this.
	* bench/gspn-ssp/Makefile.am: Update.
	* bench/gspn-ssp/bench.mk: Regen.

2008-08-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/tools/defs.in (TMPDIR): New variable.
	* bench/gspn-ssp/tools/runbench: Use it.

2008-08-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/tools/sum: Fix the order of stats in -e4.
	If the MAXLINES environment variable is defined, flush the page
	as needed.  Sort the models only once.

2008-08-27  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/README: New file.
	* bench/gspn-ssp/Makefile.am (EXTRA_DIST): Distribute it.

2008-08-27  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/tools/sum: Output WCSsym* and WCSasym* on
	separate lines.  Canonize the names used as keys to that
	WCSsymN appears always in the same column as WCSasymN.  Read the
	*.log files directly, we don't need the *.all files anymore.
	* bench/gspn-ssp/tools/collate: Delete.
	* bench/gspn-ssp/tools/Makefile.am: Adjust.
	* bench/gspn-ssp/tools/bench-create: Do not output rules to
	build *.all files.

2008-08-26  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Build the benchmark in bench/gspn-ssp/ using makefiles, so we
	can run them easily in parallel using "make -j2".

	* bench/gspn-ssp/bench: Remove, it is now replaced by Makefile rules.
	* bench/gspn-ssp/benchaux: Remove, now implemented by...
	* bench/gspn-ssp/tools/runbench, bench/gspn-ssp/tools/collate:
	... these new files.
	* bench/gspn-ssp/defs.in: Use absolute filenames.
	* bench/gspn-ssp/gen: Remove, it is now replaced
	by tools/modelgen-create.
	* bench/gspn-ssp/sumall: Delete.
	* bench/gspn-ssp/templates/WCSsym/gen,
	bench/gspn-ssp/templates/bagrodia/gen,
	bench/gspn-ssp/templates/common,
	bench/gspn-ssp/templates/gen, bench/gspn-ssp/templates/predef/gen,
	* bench/gspn-ssp/Makefile.am: Inlucde modelgen.mk, bench.mk, as
	well as all the tools.
	* bench/gspn-ssp/bench.mk, bench/gspn-ssp/modelgen.mk: New
	files, generated by ...
	* bench/gspn-ssp/tools/bench-create,
	bench/gspn-ssp/tools/modelgen-create: ... these new files.
	* bench/gspn-ssp/sum: Rename as ...
	* bench/gspn-ssp/tools/sum: ... this, adjust for the new system,
	and keep track of the inclusion count created by the previous patch.

2008-08-18  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* iface/gspn/ssp.cc (numbered_state_heap_ssp_semi): Keep track
	of the number of inclusions detected.

2008-08-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/Makefile.am, bench/gspn-ssp/trans2prop.pl: New files.
	* bench/gspn-ssp/config: Rename as bench/gspn-ssp/defs.in.
	* bench/Makefile.am (SUBDIRS): Add gspn-ssp.
	* configure.ac: Output bench/gspn-ssp/Makefile and bench/gspn-ssp/defs.
	* bench/gspn-ssp/bench: Include defs.

2008-08-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* bench/gspn-ssp/: New directory.  Contains some of the benches
	used in baarir.06.tr03, baarir.07.acsd, and baarir.07.msr.

2008-08-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* iface/gspn/ltlgspn.cc: New option: -e54.
	* iface/gspn/ssp.hh, iface/gspn/ssp.cc: Add the
	reversed_double_inclusion boolean for this.

2008-06-12  Damien Lefortier  <dam@lrde.epita.fr>

	Add ELTL visitors in eltlvisit/ and start the ELTL translation (LACIM).
	Merge all eltlast/ files into formula.hh (except automatop.hh).

	* src/eltlast/allnodes.hh, src/eltlast/atomic_prop.hh,
	src/eltlast/binop.hh, src/eltlast/constant.hh, src/eltlast/multop.hh,
	src/eltlast/refformula.hh, src/eltlast/unop.hh,
	src/eltlast/visitor.hh: Delete and merge all these files into ...
	* src/eltlast/formula.hh: ... this one.
	* src/eltlvisit/: Add some visitors (clone, destroy, ...).
	* src/internal/baseformula.hh, src/internal/baseformula.cc:
	Add base_formula, a new base class of internal::formula.
	* src/tgba/bdddict.cc src/tgba/bdddict.hh, src/tgba/bddprint.cc,
	src/tgba/tgbabddconcretefactory.cc, src/tgba/tgbabddconcretefactory.hh
	Replace ltl::formula by internal::base_formula.
	* src/tgbatest/eltl2tgba.cc: Beginning of the ELTL translation (LACIM).
	* m4/boost.m4: Add AX_BOOST_BASE([MINIMUM-VERSION]).

2008-06-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* iface/nips/nipstest/dotty.test,
	iface/nips/nipstest/emptiness.test: Prefix bytecode filenames
	with $srcdir so the tests work in VPATH builds.

2008-06-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* wrap/python/spot.i: Adjust includes after the previous patch.
	This is enough to make the python/ directory compile, but not
	enough to make it pass "make check".  Some major work is needed
	after the changes from 2008-04-16.

2008-06-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Merge all ltlast/ files into formula.hh.  The forward declaration
	of visitor was causing error messages too cryptic for users.

	* src/ltlast/allnodes.hh, src/ltlast/atomic_prop.hh,
	src/ltlast/binop.hh, src/ltlast/constant.hh, src/ltlast/multop.hh,
	src/ltlast/refformula.hh, src/ltlast/unop.hh,
	src/ltlast/visitor.hh: Delete and merge all these files into ...
	* src/ltlast/formula.hh: ... this one.
	* src/ltlast/Makefile.am: Adjust.
	* ltlparse/ltlparse.yy, ltlparse/public.hh, ltltest/equals.cc,
	ltltest/randltl.cc, ltltest/readltl.cc, ltltest/reduc.cc,
	ltltest/syntimpl.cc, ltltest/tostring.cc, ltlvisit/apcollect.hh,
	ltlvisit/basicreduce.cc, ltlvisit/clone.cc, ltlvisit/clone.hh,
	ltlvisit/contain.cc, ltlvisit/dotty.cc, ltlvisit/dump.cc,
	ltlvisit/lunabbrev.cc, ltlvisit/nenoform.cc, ltlvisit/nenoform.hh,
	ltlvisit/postfix.cc, ltlvisit/postfix.hh, ltlvisit/randomltl.cc,
	ltlvisit/reduce.cc, ltlvisit/reduce.hh, ltlvisit/simpfg.cc,
	ltlvisit/syntimpl.cc, ltlvisit/tostring.cc, ltlvisit/tunabbrev.cc,
	tgba/bdddict.cc, tgba/formula2bdd.cc, tgba/tgbaexplicit.cc,
	tgba/tgbatba.cc, tgbaalgos/ltl2tgba_fm.cc,
	tgbaalgos/ltl2tgba_lacim.cc, tgbaalgos/randomgraph.cc,
	tgbaalgos/randomgraph.hh, tgbaalgos/save.cc, tgbaparse/public.hh,
	tgbaparse/tgbaparse.yy, tgbatest/explicit.cc,
	tgbatest/explprod.cc, tgbatest/ltl2tgba.cc, tgbatest/ltlprod.cc,
	tgbatest/mixprod.cc, tgbatest/powerset.cc, tgbatest/randtgba.cc,
	tgbatest/readsave.cc, tgbatest/reductgba.cc, tgbatest/tgbaread.cc,
	tgbatest/tripprod.cc: Adjust includes.

2008-06-12  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/ltlast/atomic_prop.cc, src/ltlast/binop.cc,
	src/ltlast/constant.cc, src/ltlast/formula.cc,
	src/ltlast/multop.cc, src/ltlast/predecl.hh,
	src/ltlast/refformula.cc, src/ltlast/unop.cc: Delete these files,
	not used anymore since 2008-04-16.

2008-06-11  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* iface/nips/dottynips.cc: Include ctsdlib for exit().
	* iface/nips/emptiness_check.cc: Likewise.

	* src/eltlparse/eltlparse.yy: Include limits.h for INT_MIN and
	INT_MAX.

	* src/sanity/includes.test: Remove empty line at beginning of file.

	* src/internal/formula.hh (formula::hash): Remove the const
	qualifier from the return type, GCC 4.3.1 gicomplains.

2008-06-02  Guillaume SADEGH  <sadegh@lrde.epita.fr>

	Test suite for the NipsVM front-end.

	* iface/nips/nipstest/Makefile.am, iface/nips/Makefile.am,
	configure.ac, iface/nips/nipstest/emptiness.test,
	iface/nips/nipstest/dotty.test: Test suite for the NipsVM
	front-end.
	* iface/nips/emptiness_check.cc, iface/nips/dottynips.cc: `catch'
	don't throw anymore an exception, but exit with 1.
	* iface/nips/common.cc, iface/nips/nips.cc (nips_interface):
	Change messages of nips_exception.

2008-06-03  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/sanity/includes.test (INCDIR): Remove any trailing slash.

2008-06-03  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Install interfaces' headers in the spot/iface/ directory, not
	directly in the spot/ directory.

	* iface/gspn/Makefile.am (gspndir): Install in spot/iface/gspn/.
	* iface/nips/Makefile.am (nipsdir): Install in spot/iface/nips/.

2008-06-02  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* iface/nips/nips_vm/Makefile.am: Do not install NipsVM.

	* iface/nips/Makefile.am (empt_check_LDADD, dottynips_LDADD):
	Do not link libnipsvm.la here...
	(libspotnips_la_LIBADD): ... do it here.

2008-05-29  Guillaume SADEGH  <sadegh@lrde.epita.fr>

	* iface/nips/nips.cc, iface/nips/nips.hh, iface/nips/common.cc,
	iface/nips/common.hh, iface/nips/Makefile.am: TGBA implementation
	with the NIPS library.
	* iface/nips/emptiness_check.cc: Emptiness check on a Promela
	interface.
	* iface/nips/dottynips.cc: Dot printer on the NIPS interface.
	* iface/nips/compile.sh: Add. Wrapper around nips compiler to
	compile Promela to NIPS bytecode.
	* iface/nips/nips_vm,iface/nips/nips_vm/bytecode.h,
	iface/nips/nips_vm/ChangeLog, iface/nips/nips_vm/COPYING,
	iface/nips/nips_vm/hashtab.c, iface/nips/nips_vm/hashtab.h,
	iface/nips/nips_vm/INSTALL, iface/nips/nips_vm/instr.c,
	iface/nips/nips_vm/instr.h, iface/nips/nips_vm/instr_step.c,
	iface/nips/nips_vm/instr_step.h,
	iface/nips/nips_vm/instr_tools.c,
	iface/nips/nips_vm/instr_tools.h,
	iface/nips/nips_vm/instr_wrap.c,
	iface/nips/nips_vm/instr_wrap.h,
	iface/nips/nips_vm/interactive.c,
	iface/nips/nips_vm/interactive.h, iface/nips/nips_vm/main.c,
	iface/nips/nips_vm/Makefile, iface/nips/nips_vm/Makefile.am,
	iface/nips/nips_vm/nips_asm_help.pl,
	iface/nips/nips_vm/nips_asm_instr.pl,
	iface/nips/nips_vm/nips_asm.pl,
	iface/nips/nips_vm/nips_disasm.pl, iface/nips/nips_vm/nipsvm.c,
	iface/nips/nips_vm/nipsvm.h, iface/nips/nips_vm/README,
	iface/nips/nips_vm/rt_err.c, iface/nips/nips_vm/rt_err.h,
	iface/nips/nips_vm/search.c, iface/nips/nips_vm/search.h,
	iface/nips/nips_vm/split.c, iface/nips/nips_vm/split.h,
	iface/nips/nips_vm/state.c, iface/nips/nips_vm/state.h,
	iface/nips/nips_vm/state_inline.h,
	iface/nips/nips_vm/state_parts.c,
	iface/nips/nips_vm/state_parts.h, iface/nips/nips_vm/timeval.h,
	iface/nips/nips_vm/tools.h: NIPS VM added to the SPOT
	distribution.
	* configure.ac, iface/Makefile.am: Build system updated for the
	NIPS front-end.

	* src/Makefile.am (_.cc): Fix for `make tags`.

2008-04-16  Damien Lefortier <dam@lrde.epita.fr>

	* configure.ac, Makefile.am: Add src/eltltest/ support.
	* src/eltlast/Makefile.am, src/eltlast/formula.hh,
	src/eltlast/nfa.cc, src/eltlast/nfa.hh: Update nfa implementation.
	* src/eltlparse/Makefile.am, src/eltlparse/eltlparse.yy,
	src/eltlparse/eltlscan.ll, src/eltlparse/parsedecl.hh,
	src/eltlparse/public.hh: Finish the parser for ELTL files.
	* src/eltltest/Makefile.am, src/eltltest/acc.cc,
	src/eltltest/acc.test: Add tests for the ELTL parser.
	* src/internal/atomic_prop.hh, src/internal/atomic_prop.hxx,
	src/internal/binop.hh, src/internal/binop.hxx,
	src/internal/constant.hh, src/internal/constant.hxx,
	src/internal/defaultenv.hh, src/internal/defaultenv.hxx,
	src/internal/environment.hh, src/internal/formula.hh,
	src/internal/formula.hxx, src/internal/multop.hh,
	src/internal/multop.hxx, src/internal/predecl.hh,
	src/internal/refformula.hh, src/internal/refformula.hxx,
	src/internal/unop.hh src/internal/unop.hxx: Clean and update
	documentation.
	* src/ltlast/formula.hh, src/ltlenv/Makefile.am,
	src/ltlenv/declenv.hh, src/tgbaalgos/randomgraph.hh: Fix make
	check issues.

2008-04-14  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Kill some FIXMEs.

	* src/ltlenv/environment.hh, src/ltlvisit/basicreduce.cc: Remove
	useless FIXMEs.
	* src/ltlvisit/reduce.cc (reduce_visitor::visit(binop)): Compute
	syntactic implications only when needed.
	* src/tgbaalgos/reductgba_sim_del.cc
	(build_recurse_successor_spoiler): Remplace the FIXME by an assert.
	* src/tgba/tgbareduc.cc: Reword some comments, discard old
	commented code.

2008-03-28  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/evtgbaparse/Makefile.am (AM_CXXFLAGS): Remove -Werror
	so we tolerate more flex versions.
	* src/ltlparse/Makefile.am (AM_CXXFLAGS): Likewise.
	* src/tgbaparse/Makefile.am (AM_CXXFLAGS): Likewise.

2008-03-25  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/misc/hash.hh: Second thinko in #if/#else.

2008-03-25  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/misc/hash.hh: Thinko in #if/#else.

2008-03-21  Damien Lefortier <dam@lrde.epita.fr>

	* src/misc/freelist.hh: Avoid <iostream> in headers, better use <iosfwd>.

2008-03-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbatest/ltl2tgba.cc, src/misc/hash.hh: Reformat the header
	using 80 columns.

2008-03-14  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Make sure Spot compiles with g++-4.3.

	* src/ltlast/formula.hh (hash): Remove const from return type.
	This kills a g++-4.3 warning.
	* src/misc/hash.hh: Adjust to use unordered_set and unordered_map
	from TR1 when g++-4.3 is used.
	* src/evtgba/product.cc, src/ltltest/randltl.cc,
	src/ltlvisit/randomltl.cc, src/ltlvisit/tostring.cc,
	src/misc/freelist.hh, src/misc/optionmap.cc,
	src/tgba/tgbareduc.hh, src/tgbaalgos/gv04.cc,
	src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/randomgraph.cc,
	src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc,
	src/ltltest/equals.cc, src/ltltest/readltl.cc,
	src/ltltest/reduc.cc, src/ltltest/syntimpl.cc,
	src/ltltest/tostring.cc, src/tgbatest/ltlprod.cc,
	src/tgbatest/powerset.cc, src/tgbatest/explprod.cc,
	src/tgbatest/mixprod.cc, src/tgbatest/readsave.cc,
	src/tgbatest/reductgba.cc, src/tgbatest/tgbaread.cc,
	src/tgbatest/tripprod.cc, src/evtgbatest/product.cc,
	src/evtgbatest/readsave.cc, src/evtgbatest/ltl2evtgba.cc,
	src/evtgbatest/readsave.cc: Add missing includes.
	* src/tgbatest/explicit.test, src/tgbatest/explprod.test,
	src/tgbatest/explpro2.test, src/tgbatest/troprod.test,
	src/tgbatest/emptchk.test: Cope with different outputs.

2008-03-11  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* doc/Doxyfile.in (LATEX_HIDE_INDICES): Do not generate indices
	until Doxygen is fixed.  Doxygen 1.5.5 generates incorrect LaTeX
	code.

2008-02-27  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/reachiter.hh: Typos in comments.

2008-02-22  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgba/tgbabddconcretefactory.hh (create_state):
	Clarify comments.

2008-02-01  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check_shy::dump_queue):
	Remove superfluous semicolon.

2008-01-10  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/tgbaalgos/reductgba_sim.cc (reduc_tgba_sim): Add two
	assert().  This patch has been lying in my tree since 2007-04-30.

2008-01-08  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	This is something Soheib and I worked on back in July, but a
	intricate memory corruption bug prevented me to check the patch
	in.  It took me two days to realize why find_state() must do a
	double loop over the candidates to check for equality before
	checking for inclusion(s).

	* iface/gspn/ltlgspn.cc: New options, -e45 and -n.
	* iface/gspn/ssp.cc, iface/gspn/ssp.hh: Handle these.
	* src/tgbaalgos/gtec/gtec.cc (TRACE): Add some debugging traces.
	(couvreur99_check_shy::dump_queue): New function.
	* src/tgbaalgos/gtec/gtec.hh (couvreur99_check_shy::dump_queue):
	New function.

2007-11-29  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	Keep libtool's files under CVS so that we don't use the broken
	Debian versions installed in build hosts during automatic builds.

	* m4/libtool.m4: New file, from GNU Libtool 1.4.24.
	* tools/ltmain.sh: New file, from GNU Libtool 1.4.24.
	* HACKING: Installing Libtool is no longer required.

2007-11-22  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* m4/valgrind.m4: New file.
	* configure.ac: Use it.

2007-10-05  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* wrap/python/cgi/ltl2tgba.in: Adjust to newer versions of swig.

2007-09-19  Alexandre Duret-Lutz  <adl@lrde.epita.fr>

	* src/misc/bddalloc.cc (bdd_allocator::initialize):
	Disable the default GC handler.  Reported by
	Kristin Yvonne Rozier <kyrozier@cs.rice.edu>.

2007-07-26  Alexandre Duret-Lutz  <adl@gnu.org>

	* src/tgbatest/ltl2tgba.cc (main): Correctly destroy unobservable
	events.

2007-07-23  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* iface/gspn/ltlgspn.cc: New option -L.
	* iface/gspn/ssp.cc, iface/gspn/ssp.hh (gspn_ssp_interface)
	support for a new option "pushfront".

	* NEWS, configure.in: Bump version to 0.4a.

2007-07-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* NEWS, configure.in: Bump version to 0.4.
	* HACKING, INSTALL, doc/Doxyfile.in, lbtt/INSTALL: Update to newer
	tools.

2007-07-16  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* iface/gspn/ssp.cc (tgba_gspn_ssp_private_::~tgba_gspn_ssp_private_):
	Fix the declaration for GCC 4.1.2.
	* iface/gspn/gspn.cc (tgba_gspn_private_::~tgba_gspn_private_):
	Likewise.

2007-06-20  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/spotlbtt.test: Do not check -R1q -R1t -R2q -R2t.

2007-04-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/ltl2tgba.cc (main): Fix handling of -R1q -R1t -R2q -R2t.
	Add support for -r8/-fr8.

	* src/tgbatest/spotlbtt.test: Also check -R1q -R1t -R2q -R2t.

2007-04-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/reduce.cc (reduce): Repeat the reduction as
	long as the formula changes, it makes more sense when
	combining algorithm.  E.g. basic reductions can help language
	containment and vice-versa.

2007-04-20  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/spotlbtt.test: Disable formula rewriting during
	construction.

2007-04-19  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltltest/reduc.cc (main): More cases to test.
	* 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/contain.cc (reduce_tau03_visitor): Simplify the
	rules for "a U b" and "a R b", an implication check is enough.

2007-04-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/bddalloc.cc (bdd_allocator::initialize): Call
	bdd_isrunning() and don't run bdd_init() if it has already been
	called.

2007-02-06  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/randomgraph.cc (random_graph): Fix the
	generation of the graph.  Some states had no successors or
	duplicate transitions because of that bug.

2006-08-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* HACKING: We need Bison 2.3.

	* evtgbaparse/evtgbaparse.yy, ltlparse/ltlparse.yy,
	tgbaparse/tgbaparse.yy: Fix Bison warnings about unset $$.

	* src/tgbaparse/Makefile.am (tgbaparse_HEADERS): Also
	install location.hh and position.hh, since we no longer share
	those of ltlvisit.
	* src/evtgbaparse/Makefile.am (evtgbaparse_HEADERS): Likewise.

2006-08-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlparse/public.hh: Work around Bison 2.3 unique guards.

2006-08-16  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/evtgbaparse/public.hh: Work around Bison 2.3 unique guards.
	* 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).

2006-08-01  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/evtgbatest/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
	src/evtgbaparse/parsedecl.hh, src/evtgbaparse/public.hh,
	src/ltlparse/fmterror.cc, src/ltlparse/ltlparse.yy,
	src/ltlparse/ltlscan.ll, src/ltlparse/parsedecl.hh,
	src/ltlparse/public.hh, src/tgbaparse/parsedecl.hh,
	src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
	src/tgbaparse/tgbascan.ll: Adjust for Bison 2.3.  Use %name-prefix
	instead of the "#define yy ... " kludge.

2006-07-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/contain.hh, src/ltlvisit/contain.cc: Adjust to only
	check containment on demand.

2006-07-19  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/contain.hh, src/ltlvisit/contain.cc (reduce_tau03):
	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.

	* src/tgba/tgbaproduct.cc: Fix computation of common acceptance
	conditions.

	* src/tgba/bdddict.cc, src/tgba/bdddict.cc (register_clone_acc):
	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/tgbaalgos/ltl2tgba_fm.cc (language_containment_checker): Move ...
	* src/ltlvisit/contain.cc, src/ltlvisit/contain.hh
	(spot::ltl::language_containment_checker): ... in these new files.
	* src/ltlvisit/Makefile.am: Adjust.

2006-07-18  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/memusage.cc, src/misc/memusage.hh: New files.
	* src/misc/Makefile.am: Add them.
	* src/tgbaalgos/gtec/gtec.cc,
	src/tgbaalgos/gtec/gtec.hh: Add a "vmsize" statistic.

2006-07-14  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgba/bdddict.cc, src/tgba/bdddict.hh (free_annonymous_list_of):
	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.

	Merge this fix from proviso-branch:
	2006-05-22  Alexandre Duret-Lutz  <adl@src.lip6.fr>
	* src/misc/bddalloc.cc (bdd_allocator::bdd_allocator): Count the
	number of BDD variable after they have been allocated.  Otherwise
	the first bdd_dict() created was leaking BDD variable #1.

	* src/tgba/tgbabddconcrete.hh, src/tgba/tgbaexplicit.hh,
	src/tgba/tgbaproduct.hh, src/tgba/tgbareduc.hh, src/tgba/tgbatba.hh:
	Remove superfluous class qualifiers worrying gcc 4.1.2.

2006-07-13  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_fm.cc
	(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.

	* src/tgba/bdddict.cc (bdd_dict::unregister_variable): Correctly
	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 !

2006-06-13  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* iface/gspn/common.hh, iface/gspn/common.cc, iface/gspn/gspn.cc,
	iface/gspn/ltlgspn.cc, iface/gspn/dottygspn.cc, iface/gspn/ssp.cc,
	iface/gspn/dottyssp.cc: s/exeption/exception/g.

2006-04-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh:
	(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).

2006-02-15  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/gtec.cc: Add a third level hash, to split
	each container into lists of states with identical formula states.

	* iface/gspn/ltlgspn.cc, src/tgbaalgos/gtec/gtec.cc,
	src/tgbaalgos/gtec/gtec.hh: New option (-e6) to disable
	inclusion check in the stack.

	* src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh:
	Count the number of removed components.

2006-02-14  Alexandre Duret-Lutz  <adl@src.lip6.fr>
	    Soheib Baarir  <Souheib.Baarir@lip6.fr>

	* iface/gspn/ssp.cc (couvreur99_check_shy_ssp::find_state,
	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.

2006-02-11  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/ltl2tgba.cc: Pacify sanity.test.

2006-02-10  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaparse/public.hh (tgba_parse): Take two environments
	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.

	* src/tgbaparse/tgbaparse.yy (acc_decl): Diagnose acceptance
	conditions rejected by the environment.

	* iface/gspn/ltlgspn.cc (display_stats): New function.
	(main): Use it.
	* iface/gspn/ssp.cc: Add more counters for statistics.

	* iface/gspn/ssp.cc (couvreur99_check_shy_ssp::find_state): Correctly
	update the emptiness statistics.

	* m4/gspnlib.m4: Typo.

2006-02-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* iface/gspn/ssp.cc: Pacify sanity.test.

2006-02-03  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* iface/gspn/ssp.cc (couvreur99_check_shy_ssp::find_state): Typo.

2006-02-02  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check_shy::check):
	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::find_state): 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::find_state): Adjust
	to new prototype.
	* bench/emptchk/README, bench/emptchk/algorithms: Adjust references
	to group/group2.

2006-01-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* NEWS, configure.ac: Bump version to 0.3a.

2006-01-25  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* NEWS, README, configure.ac: Update for version 0.3.

2006-01-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* wrap/python/cgi/ltl2tgba.in: Fix degeneralisation and output of
	accepting runs.

2006-01-10  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* wrap/python/spot.i: Wrap spot::emptiness_check_instantiator.
	* wrap/python/cgi/ltl2tgba.in: Offers all 6 emptiness
	check algorithms, and a text box for options.

2006-01-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/ndfs_result.hxx (ndfs_result::construct_cycle):
	Initialize tmp to suppress a GCC 4.0.1 warning (seen on Darwin).

2006-01-03  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/defs.in (VALGRIND): Use --log-fd instead of
	--logfile-fd to please newer versions of Valgrind.
	* src/ltltest/defs.in, src/evtgbatest/defs.in: Likewise.

2005-09-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlparse/ltlparse.yy (result): Do not assign to $$, it's useless.
	Suggested by Akim.

	* src/tgbatest/randtgba.cc: New option -H.
	* src/tgbaalgos/emptiness_stats.hh (unsigned_statistics_copy): New
	class.

2005-09-27  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc: New option -S.

2005-09-23  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/lbtt.cc: Typo.

2005-09-22  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc (default_algos): Test the "ordering"
	heuristic.

2005-09-20  Heikki Tauriainen  <heikki.tauriainen@tkk.fi>

	* src/tgbaalgos/tau03opt.cc: Include <vector>.
	(tau03_opt_search): Add option "ordering" (off by default).
	If enabled, initialize an explicit ordering for acceptance
	conditions into the new member "cond" (a vector of bdds).
	(project_acc): New helper function for projecting a set of
	acceptance conditions to a subset that maximizes the number
	of initial consecutive conditions covered by the set in the
	condition ordering.
	(dfs_blue): Implement the ordering heuristic.
	(dfs_red): Use a sentinel in condition_stack to avoid explicit
	checks for the stack's emptiness.
	Consider also the conditions in acc when checking for the
	completion of an accepting cycle.
	Fix the implementation of condition heuristic.
	Implement the ordering heuristic.
	Simplify the removal of elements from condition_stack (due to
	the way in which elements are pushed on the stack, there can
	be at most one element with a given depth in the stack at any
	one time).

2005-09-05  Heikki Tauriainen  <heikki.tauriainen@tkk.fi>

	* src/tgbaalgos/ndfs_result.hxx (ndfs_result::construct_prefix):
	Initialize tmp to suppress a GCC 4.0 warning.
	* src/ltltest/randltl.cc (main): Likewise with another variable.

2005-09-05  Heikki Tauriainen  <heikki.tauriainen@tkk.fi>

	* src/ltlast/visitor.hh (visitor, const_visitor): Add empty
	virtual destructors.
	* src/tgba/tgbabddfactory.hh (tgba_bdd_factory): Likewise.
	* src/misc/hash.hh: Use the std namespace only with GCC 3.0,
	not with all compiler versions with minor version 0.
	* src/tgba/tgbatba.cc (tgba_tba_proxy_succ_iterator): Fix
	friend declaration of ::spot::tgba_tba_proxy.

2005-09-01  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/magic.hh: \fixme is not a doxygen command.  Use \bug.

2005-08-31  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* README: Update lbtt references.

	* iface/gspn/ssp.cc: Typo in comment.

	* lbtt/: Merge lbtt 1.2.0.

2005-06-06  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/reductgba_sim_del.cc
	(parity_game_graph_delayed::get_relation): Disable for generalized
	automata, it's wrong.

2005-05-25  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/reductgba_sim_del.cc
	(parity_game_graph_delayed::nb_set_acc_cond): Simplify.

	* sanity/style.test: Catch misuses of Sgi::.
	* tgba/tgbareduc.hh, tgbaalgos/reductgba_sim.cc,
	tgbaalgos/reductgba_sim.hh, tgbaalgos/reductgba_sim_del.cc: Fix them.

2005-05-16  Denis Poitrenaud  <dp@src.lip6.fr>

	* src/ltlvisit/syntimpl.cc: Fix a typo.

2005-05-13  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/syntimpl.cc: Fix detection of purely eventual formulae.

2005-05-12  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/ltl2tgba_fm.cc: Fix handling of fair_loop_approx.

2005-05-04  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/hashfunc.hh (knuth32_hash): New function.
	* src/misc/hash.hh (ptr_hash): Use knuth32_hash.
	* src/tgba/tgbabddconcretefactory.hh (tgba_bdd_concrete_factory): Use
	ltl::formula_ptr_hash for acc_map_.

	* src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_fm.cc: Add
	the reduce_ltl argument.
	* src/tgbatest/ltl2tgba.cc: Add options -fr1, -fr2, -fr3, and -fr4.
	* src/tgbatest/spotlbtt.test, bench/ltl2tgba/algorithms: Test -fr4.
	* bench/ltl2tgba/parseout.pl: Suppress Perl warnings on disabled
	algorithms.

2005-04-19  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* bench/ltl2tgba/README: More instructions.
	* bench/Makefile.am (SUBDIRS): Add ltl2tgba.
	* README: Mention bench/ltl2tgba.

2005-04-15  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* bench/ltl2tgba/Makefile.am, bench/ltl2tgba/README,
	bench/ltl2tgba/algorithms, bench/ltl2tgba/big,
	bench/ltl2tgba/defs.in, bench/ltl2tgba/formulae.ltl,
	bench/ltl2tgba/known, bench/ltl2tgba/parseout.pl,
	bench/ltl2tgba/small: New files.
	* src/tgbatest/ltl2baw.pl: Move ...
	* bench/ltl2tgba/ltl2baw.in: ... here.
	* src/tgbatest/Makefile.am: Adjust.
	* configure.ac: Adjust.

2005-04-14  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/ltl2tgba.cc (main): Delete the reduced automaton
	before the degeneralized automaton.

2005-04-13  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* doc/Makefile.am (doc, $(srcdir)/stamp): Ignore rm's errors.

2005-04-12  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* README: Typos.

2005-04-09  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* NEWS, configure.ac: Bump version to 0.2a.

2005-04-08  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* NEWS, configure.ac: Bump version to 0.2.

	* bench/emptchk/README: Mention
	http://spot.lip6.fr/wiki/EmptinessCheckOptions for the syntax.

2005-04-06  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaparse/tgbaparse.yy (acc_list): Do not explicitly delete
	an undeclared acceptance condition.
	* src/tgbaalgos/save.cc (print_acc): Unquote atomic propositions.

	* bench/emptchk/Makefile.am: Create reduced versions of the graphs.
	* bench/emptchk/pml2tgba.pl: Add option -r.
	* bench/emptchk/pml-clserv.sh, bench/emptchk/pml-eeaean.sh:
	Also run on reduced graphs (this is fast).
	* bench/emptchk/README: Adjust.

2005-02-23  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/length.cc (length_visitor): Rewrite using
	postfix_visitor.

2005-02-22  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/tau03opt.cc (tau03_opt_search): Add options "weights"
	and "redweights" (on by default).

	* src/tgbaalgos/tau03opt.cc (tau03_opt_search): Do not
	account for the size of condition_stack.

2005-02-20  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/sanity/style.test: Catch occurrences of "accepting condition".
	* bench/emptchk/ltl-human.sh, bench/emptchk/ltl-random.sh,
	src/sanity/style.test, src/tgba/bdddict.cc,
	src/tgba/succiterconcrete.hh, src/tgba/tgbabddcoredata.hh,
	src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
	src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh,
	src/tgbaalgos/magic.cc, src/tgbaalgos/magic.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/tgbatest/dfs.test: Replace them by "acceptance condition".

	* src/tgbaalgos/tau03opt.hh, src/tgbaalgos/tau03.hh: Include
	misc/optionmap.hh.

2005-02-18  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* bench/emptchk/README: Document the file `algorithms'.

	* src/tgbaalgos/tau03opt.cc (tau03_opt_search): Implement the
	"condition heuristic".  Suggested by Heikki Tauriainen.
	* src/tgbatest/randtgba.cc: Test it.

	* src/tgbatest/randtgba.cc: Remplace the -O option by -A, reading
	all algorithms from a file.  Use the emptiness_check_instantiator
	syntax as name in the output.
	* bench/emptchk/defs.in: DEfine ALGORITHMS here.
	* bench/emptchk/ltl-human.sh, bench/emptchk/ltl-random.sh,
	bench/emptchk/pml-clserv.sh, bench/emptchk/pml-clserv.sh: Use
	$ALGORITHMS.
	* src/misc/timer.cc: Truncate long keys in display.

	* src/tgbatest/ltl2tgba.cc: Simplify using
	emptiness_check_instantiator.
	* src/tgba/tgba.cc, src/tgba/tgba.hh
	(tgba::number_of_acceptance_conditions): Return an unsigned.
	* bench/emptchk/algorithms, bench/emptchk/README,
	src/tgbatest/emptchk.test, src/tgbatest/emptchke.test: Adjust
	references to algorithms.
	* bench/emptchk/pml-clserv.sh, bench/emptchk/pml-eeaean.sh: Quote
	variables properly.

2005-02-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/emptiness.hh, src/tgbaalgos/emptiness.cc
	(emptiness_check_instantiator): New class.
	* src/misc/optionmap.hh (set (const option_map&)): New method.
	* src/tgbatest/randtgba.cc: Create every emptiness check via
	emptiness_check_instantiator.

	* src/tgbaalgos/emptiness.hh,
	src/tgbaalgos/emptiness.cc (emptiness_check::safe): New method.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh,
	src/tgbaalgos/se05.hh, src/tgbaalgos/se05.cc: Implement it.
	* src/tgbatest/randtgba.cc: Simplify.

	* src/tgbaalgos/magic.hh, src/tgbaalgos/magic.cc,
	src/tgbaalgos/se05.hh, src/tgbaalgos/se05.cc: Provide wrapper
	functions that read the hash-map size from a "bsh" option.
	* src/tgbatest/randtgba.cc: Simplify.

	* src/misc/optionmap.hh, src/misc/optionmap.cc
	(option_map::parse_options): Rewrite.  Do not modify the input
	string, allow !foo as a shorthand for foo=0, and support K and
	M suffixes for values.
	* src/tgbatest/randtgba.cc (cons_emptiness_check): Simplify.
	* wrap/python/spot.i: Process optionmap.hh.
	* wrap/python/tests/optionmap.py: New file.
	* wrap/python/tests/Makefile.am (TESTS): Add it.

2005-02-16  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/optionmap.cc, src/misc/optionmap.hh (option_map::get,
	option_map::set): Handle default values.
	(anonymous::to_int): Do not print anything.
	* src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh,
	src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
	src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
	src/tgbaalgos/ce.cc, src/tgbaalgos/ce.hh: Take an option_map in
	the constructor.
	* src/tgbaalgos/gtec.cc, src/tgbaalgos/gtec.hh: Likewise.  Handle
	the "poprem", "group", and "shy" options via the option_map.
	Supply a couvreur99() wrapper to the shy/non-shy variant.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc,
	iface/gspn/ssp.cc: Adjust.

2005-02-08  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc: Factorize more code using the
	unsigned_statistics interface.
	* bench/emptchk/README: Adjust description of output.

2005-02-07  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/sanity/style.test: Strip all strings before checking the
	file, so that strings are not checked for our C++ style.
	Reported by Denis (with a chainsaw).

2005-02-07  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/misc/optionmap.cc, src/misc/optionmap.hh: Typo (Hummm).

2005-02-07  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/misc/optionmap.cc, src/misc/optionmap.hh (option_map): New class.
	* src/misc/Makefile.am: Add it.
	* src/tgbaalgos/emptiness.cc, src/tgbaalgos/emptiness.hh: Add option
	facilities to the classes emptiness_check and emptiness_result
	* src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh,
	src/tgbaalgos/se05.cc, src/tgbaalgos/se05.hh: Compute optionnaly
	accepting runs from stack.
	* src/tgbatest/randtgba.cc: Make this option public.

2005-02-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/ltstr.hh: Include <functional>

2005-02-04  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc (stat_collector): New class, replacing...
	(ec_stat, acss_stat, ars_stat, print_ec_stats, print_acss_stats,
	print_ars_stats): ... these.
	* tgbaalgos/emptiness_stats.hh (unsigned_statistics): Make the
	map public.

	* src/tgbaalgos/emptiness_stats.hh (unsigned_statistics::stats_map_):
	Use char_ptr_less_than.

	* src/misc/ltstr.hh: New file.
	* src/misc/Makefile.am (misc_HEADERS): Add it.

	* src/tgbaalgos/emptiness_stats.hh (unsigned_statistics::stats_map_):
	Use char* for keys, not std::string.

2005-02-03  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* tgbaalgos/emptiness_stats.hh (unsigned_statistics): New base
	class for ec_statistics and ars_statistics.
	(acss_statistics): Inherit from ars_statistics.
	* tgbaalgos/emptiness.cc, tgbaalgos/emptiness.hh:
	(emptiness_check::statistics, emptiness_check_result::statistics):
	New methods.
	* tgbatest/randtgba.cc: Adjust to use the above.
	* tgbaalgos/gv04.cc, tgbaalgos/ndfs_result.hxx, tgbaalgos/gtec/ce.cc,
	tgbaalgos/gtec/ce.hh: Do not inherit from ars_statistics if
	acss_statistics is used.

	* src/tgbaalgos/gtec/gtec.hh (couvreur99_check): Add pseudo code.

2005-02-02  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/randomgraph.cc (random_graph): Make sure n > 0.
	* src/tgbatest/randtgba.cc: Check the range of all arguments.

	* bench/emptchk/models/eeaean1.pml: New file, from schwoon.05.tacas.
	* bench/emptchk/Makefile.am: Distribute models/eeaean1.pml
	and build models/eeaean1.tgba.
	* bench/emptchk/pml-eeaean.sh: Check models/eeaean1.pml.
	* bench/emptchk/README: Adjust.
	* bench/emptchk/defs.in (RANDTGBA, LTL2TGBA): These tools are in
	the build tree, not the source tree...

	These tests are huge, and are obsoleted by randtgba-based checks,
	and by bench/emptchk/.
	* src/tgbatest/tba_samples_from_spin.test: Delete.
	* src/tgbatest/tba_samples_from_spin/: Delete.
	* src/tgbatest/Makefile.am: Adjust.

2005-02-01  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
	src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh,
	src/evtgbaparse/public.hh, src/evtgbatest/product.cc,
	src/evtgbatest/readsave.cc, src/ltlparse/fmterror.cc,
	src/ltlparse/ltlparse.yy, src/ltlparse/parsedecl.hh,
	src/ltlparse/public.hh, src/tgbaparse/parsedecl.hh,
	src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy: Update
	to Bison 2.0.

	* bench/emptchk/pml2tgba.pl (usage): Correct description.  From Denis.

	* bench/emptchk/README: Timing info from Denis.

	* src/tgbatest/randtgba.cc (main): Skip empty lines.
	(syntax): Categorize options.

2005-01-31  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/explicit.test, src/tgbatest/explpro2.test,
	src/tgbatest/explprod.test, src/tgbatest/tripprod.test,
	src/evtgbatest/explicit.test: Do not reorder the output.
	It's pointless since 2005-01-20.

	* configure.ac, NEWS: Bump version to 0.1a.

	* configure.ac, NEWS: Bump version to 0.1.

2005-01-30  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* bench/emptchk/Makefile.am (dist_noinst_SCRIPTS): Add pml-clserv.sh
	and pml-eeaean.sh.
	* bench/emptchk/ltl-human.sh: Typo in densities.
	Reported by Denis.

2005-01-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* doc/mainpage.dox: More text, and a link to "Modules".

	* src/tgbatest/ltl2tgba.cc (main): Silence the "filename.tgba read"
	message if -0 is used.

	* bench/emptchk/formulae.ltl: New file.

	* src/tgbaalgos/gtec/gtec.hh (couvreur99_check): Document poprem.

	* bench/emptchk/README: Make clearer that spin is needed.

	* src/tgbatest/randtgba.cc (syntax): Missing std::endl.

2005-01-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>
	    Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* bench/Makefile.am, bench/emptchk/Makefile.am,
	bench/emptchk/README, bench/emptchk/algorithms,
	bench/emptchk/defs.in, bench/emptchk/ltl-human.sh,
	bench/emptchk/ltl-random.sh, bench/emptchk/pml-clserv.sh,
	bench/emptchk/pml-eeaean.sh, bench/emptchk/pml2tgba.pl,
	bench/emptchk/models/cl3serv1.pml,
	bench/emptchk/models/cl3serv3.pml,
	bench/emptchk/models/clserv.ltl, bench/emptchk/models/eeaean.ltl,
	bench/emptchk/models/eeaean2.pml: New files.
	* README: Adjust.
	* configure.ac: Output bench/Makefile and bench/emptchk/Makefile.
	Check for PERL, and define the NEVER conditional.
	* Makefile.am (SUBDIRS) [NEVER]: Add bench.


2005-01-28  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/emptiness_stats.hh: Make sure depth() >= 0.
	* src/tgbaalgos/gtec/gtec.hh (couvreur99_check, couvreur99_check_shy):
	Add the poprem option.
	* src/tgbaalgos/gtec/gtec.cc: Implement it.
	* src/tgbaalgos/gtec/sccstack.cc, src/tgbaalgos/gtec/sccstack.hh
	(scc_stack::rem, scc_stack::clear_rem,
	scc_stack::connected_component::rem): New.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc: Add rem variants.

2005-01-28  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/dfs.test, src/tgbatest/emptchk.test,
	src/tgbatest/emptchke.test, src/tgbatest/ltl2tgba.cc,
	src/tgbatest/randtgba.cc, src/tgbatest/tba_samples_from_spin.test:
	Adjust names of emptiness check algorithms.

2005-01-27  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/gtec/gtec.cc: Adjust statistics count to match
	how the algorithm will behave once remove_component() is revamped. From
	Alexandre.

2005-01-27  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/ce.cc (couvreur99_check_result::accepting_cycle):
	More ref in comment.

2005-01-26  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gv04.cc, src/tgbaalgos/ndfs_result.hxx,
	src/tgbaalgos/gtec/ce.cc: Do not account for states that are
	computed but not visited by the BFS&DFS used to construct
	accepting runs.

2005-01-25  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc: Complete performance measurements.

	* src/tgbatest/ltl2tgba.cc: Typo.

	* src/tgbaalgos/magic.hh: Correct pseudo-code.

2005-01-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/tau03opt.hh, src/tgbaalgos/se05.hh: Correct
	pseudo-code.  From Denis.

	* src/tgbaalgos/gtec/gtec.cc: Fake statistics count to match
	how the algorithm will behave once remove_component() is revamped.

	* src/tgbaalgos/emptiness_stats.hh (ars_statistics): Distinguish
	states visited to compute the prefix and those for the cycle.
	* src/tgbaalgos/gv04.cc, src/tgbaalgos/ndfs_result.hxx,
	src/tgbaalgos/gtec/ce.cc: Adjust.
	* src/tgbatest/randtgba.cc: Print both statistics.

2005-01-24  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc, src/tgbatest/ltl2tgba.cc: Add options
	dedicated to display of stats.

2005-01-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc: Some fixes from Denis for ratio stats.

2005-01-20  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlast/formula.hh (formula_ptr_less_than): Two
	formulae with the same hash key are not necessary equal!

	* src/ltlast/formula.hh (hash, dump, dump_, hash_key_): New members.
	(formula_ptr_less_than, formula_ptr_hash): New class.
	* src/ltlast/atomic_prop.cc, src/ltlast/binop.cc,
	src/ltlast/constant.cc, src/ltlast/formula.cc,
	src/ltlast/multop.cc, src/ltlast/unop.cc: Adjust to handle dump_.
	* src/ltlvisit/apcollect.cc, src/ltlvisit/apcollect.hh:
	Sort the set using formula_ptr_less_than.
	* src/ltlvisit/dump.cc: Simplify using ->dump().
	* src/tgbaalgos/ltl2tgba_fm.cc: Sort all maps to get deterministic
	results.

2005-01-18  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/tau03opt.hh (explicit_tau03_opt_search): Doco.

	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check_shy::clear_todo,
	couvreur99_check_shy::check): Sum all successors in the
	todo stack AND all items on the stack.

2005-01-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/emptiness_stats.hh (ec_statistics::depth): New function.
	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check_shy::clear_todo,
	couvreur99_check_shy::check): Count all successors in the
	todo stack rather than all items on the stack.

2005-01-13  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc: Close the formula file and remove a trace.

2005-01-13  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc: Add products with formulae issued of a file
	and more statistics.
	* src/tgbatest/readsave.test: Undo previous change.

2005-01-13  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/readsave.test: Fix parameter of randtgba call.

2005-01-12  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc: Add products with randomized formulae and
	more statistics.

2005-01-11  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gv04.cc (result): Implement the acss_statistics,
	and ars_statistics interfaces.

2005-01-11  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/ltltest/randltl.cc: Typo.

2005-01-11  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaparse/tgbaparse.yy: Accept automaton without state.

	* src/ltltest/randltl.cc: Typo.

2005-01-10  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbatest/randtgba.cc: Typo.

2005-01-10  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/ltl2tgba.cc: Typo.

	* src/tgbatest/randtgba.cc: Add option -P.

2005-01-10  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/tau03.cc: Typo.
	* src/tgbatest/ltl2tgba.cc: Add option -b.

2005-01-07  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/ndfs_result.hxx (ndfs_result, acss_interface):
	Conditionally inherit from acss_statistics.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc, src/tgbaalgos/tau03.cc,
	src/tgbaalgos/tau03opt.cc: Define Has_Size in all heaps.

2005-01-06  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/ltltest/randltl.cc: Include cassert.

	* src/tgbaalgos/ndfs_result.hxx: Implement the spot::acss_statistics
	interface.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc, src/tgbaalgos/tau03.cc,
	src/tgbaalgos/tau03opt.cc: Add to each heap class a method returning its
	size.

2005-01-06  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltltest/randltl.cc: Add options -r and -u.
	* src/ltltest/reduc.test: Use randltl -u, and run it through valgrind.

2005-01-05  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltlvisit/randomltl.cc, src/ltlvisit/randomltl.hh: New files.
	* src/ltlvisit/Makefile.am (ltlvisit_HEADERS,
	libltlvisit_la_SOURCES): Distribute them.
	* src/ltltest/randltl.cc: New file.
	* src/ltltest/Makefile.am (LDADD): Link with ../libspot.la directly.
	(noinst_PROGRAMS, randltl_SOURCES): New.
	(EXTRA_DIST, CLEANFILES): The list of random formulae is now generated.
	* src/ltltest/formulae.txt: Delete.
	* src/ltltest/reduc.test: Use randltl to generate formulae.
	* src/ltlvisit/length.cc (length_visitor): Fix computation
	of the length of multops.
	* src/ltlvisit/length.hh (length): Document the length of multops.

2005-01-04  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/sanity/includes.test: Also check *.hxx files.
	* src/tgbaalgos/ndfs_result.hxx: Rename the include guard.

2005-01-03  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* doc/Doxyfile.in (FILE_PATTERNS): Remove *.hxx.
	* src/sanity/80columns.test, src/sanity/style.test: Process *.hxx files.
	* src/tgbaalgos/ndfs_result.hh: Rename as ..
	* src/tgbaalgos/ndfs_result.hxx: ... this, so it does not get
	documented (and so Doxygen do not complain).
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc, src/tgbaalgos/tau03.cc,
	src/tgbaalgos/tau03opt.cc: Adjust include.
	* src/tgbaalgos/Makefile.am: Rename ndfs_result.hh as ndfs_result.hxx
	and do not install it, this is a private header.

	* src/tgbaalgos/emptiness.hh: Declare Doxygen group
	emptiness_check_stats.
	* src/tgbaalgos/emptiness_stats.hh: Use it.

	* doc/Doxyfile.in: Update for Doxygen 1.4.0, set
	DOT_MULTI_TARGETS, and disable GROUP_GRAPH (it causes segfault).
	* src/tgbaparse/public.hh (format_tgba_parse_errors): Complete
	Doxygen comment.

	* src/tgbaalgos/emptiness_stats.hh (ars_statistics): New class.
	* src/tgbaalgos/ndfs_result.hh (ndfs_result): Inherit from
	ars_statistics.
	(ndfs_result::dfs): Call inc_ars_states().
	(ndfs_result::test_path, ndfs_result::min_path): Update ars_statistics.
	* tgbaalgos/gtec/ce.hh (couvreur99_check_result): Inherit
	from ars_statistics.
	* tgbaalgos/gtec/ce.cc (shortest_path,
	couvreur99_check_result::accepting_cycle::scc_bfs):
	Update ars_statistics.
	* src/tgbatest/randtgba.cc: Display statistics about accepting run
	search.

	* src/tgbaalgos/bfssteps.hh (bfs_steps::finalize): Document.

	* src/tgbaalgos/emptiness_stats.hh (accs_statistics): New class.
	* src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/ce.hh
	(couvreur99_check_result): Inherit from acss_statistics.
	(couvreur99_check_result::acss_states): Implement it.
	* src/tgbatest/randtgba.cc: Display statistics about accepting cycle
	search space.

	* src/tgbaalgos/ndfs_result.hh (construct_prefix): Do not call
	erase() after splice(), splice() already removes the elements.

	* src/evtgba/evtgbaiter.hh, src/ltlast/formula.hh,
	src/ltlast/refformula.hh, src/ltlenv/defaultenv.hh,
	src/misc/bareword.hh, src/tgba/succiter.hh,
	src/tgba/tgbabddfactory.hh, src/tgba/tgbareduc.hh,
	src/tgbaalgos/dupexp.hh, src/tgbaalgos/emptiness_stats.hh,
	src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_lacim.hh,
	src/tgbaalgos/reductgba_sim.hh, src/tgbaalgos/tau03opt.hh: Add
	or fix include guards.
	* src/sanity/includes.test: Check the presence of the include
	guard.

2004-12-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/nsheap.hh, src/tgbaalgos/gtec/nsheap.cc
	(index_and_insert): New function.
	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check_shy::check): Rewrite.
	(couvreur99_check_shy::clear_todo): New method.
	* src/tgbaalgos/gtec/gtec.hh (couvreur99_check_shy::todo_item): New
	struct.
	* iface/gspn/ssp.cc (numbered_state_heap_ssp_semi::index_and_insert):
	New method.

2004-12-20  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* doc/Doxyfile.in (EXCLUDE_SYMLINKS): Set to YES, since we have no
	legitimate symlink in our source tree.  Requested by Akim Demaille.

2004-12-20  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/ndfs_result.hh: Rewrite the computation of accepting
	runs.
	* src/tgbaalgos/bfssteps.hh, src/tgbaalgos/bfssteps.cc: Add the method
	finalize witch compute (by default) the traversed path.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc: Fix a bug concerning
	the heap used for bit state hashing version and adjust the prototype of
	has_been_visited and pop_notify.
	* src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.cc: adjust the
	prototype of has_been_visited and pop_notify.

2004-12-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/ndfs_result.hh: Include misc/hash.hh.

2004-12-16  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/reducerun.cc (reduce_run): Do not call erase() after
	splice(), splice() already removes the elements.
	* src/tgbaalgos/gtec/ce.cc (couvreur99_check_result::accepting_run):
	Likewise.

	* src/tgbatest/randtgba.cc: Add option -O, so we can profile each
	emptiness-check on its own.

	* src/ltlparse/ltlscan.ll: Pass yyleng to the std::string constructor,
	so it doesn't have to compute it.
	* src/tgbaparse/tgbascan.ll: Likewise.
	(YY_USER_INIT, current_file): Remove, it is too costly to use
	yy::Location::filename in the current implementation
	of yy::Location (this attribute is duplicated for each token).
	Leaving it empty divides the parsing time by 3.
	* src/tgbaparse/fmterror.cc, src/tgbaparse/public.hh
	(format_tgba_parse_errors): Take the filename as argument.
	* src/tgbatest/explprod.cc, src/tgbatest/ltl2tgba.cc,
	src/tgbatest/mixprod.cc, src/tgbatest/powerset.cc,
	src/tgbatest/readsave.cc, src/tgbatest/reductgba.cc,
	src/tgbatest/tgbaread.cc, src/tgbatest/tripprod.cc,
	iface/gspn/dottyssp.cc, iface/gspn/ltlgspn.cc: Adjust calls
	to format_tgba_parse_errors.

2004-12-15  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaparse/tgbaparse.yy: Cache parsed formulae to speedup
	reading of TGBAs with lots of identical conditions.

	* src/tgba/bdddict.hh (bdd_dict) <fv_map, vf_map, ref_set,
	vr_map, free_annonymous_list_of_type>: Redeclare as std::map,
	instead of Sgi::hash_map.  It proved to be faster.
	* src/tgbaalgos/ltl2tgba_fm.cc (translate_dict) <fv_map, vf_map>:
	Use the same definition as in bdd_dict.
	* tgbaalgos/reachiter.hh, tgbaalgos/replayrun.cc: Explicitly
	include misc/hash.hh.

	Adjust Swig rules for Swig 1.3.24 (and probably 1.3.23 too).
	Compiling the runtime in a separate modules is no longer required,
	and actually it does not work anymore...
	* wrap/python/swigpy.i: Remove.
	* wrap/python/Makefile.am (_swigpy.la): Remove all references.
	($(srcdir)/spot_wrap.cxx, $(srcdir)/buddy_wrap.cxx): Do not
	use -noruntime.

2004-12-14  Alexandre Duret-Lutz  <adl@src.lip6.fr>

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

2004-12-14  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/ndfs_result.hh: Define the trace output stream.

2004-12-13  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/ndfs_result.hh: New file factorizing the computation of
	accepting runs for ndfs emptiness check algoritms.
	* src/tgbaalgos/Makefile.am: Add it.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc,
	src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.cc: Remove the old
	result classes and use the new one.

2004-12-10  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gtec/status.hh
	(couvreur99_check_status::cycle_seed): New attribute.
	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check::check,
	couvreur99_check_shy::check): Fill cycle_seed.
	* src/tgbaalgos/gtec/ce.hh, src/tgbaalgos/gtec/ce.cc:
	(couvreur99_check_result::accepting_run,
	couvreur99_check_result::accepting_cycle): Revamp to compute a
	cycle from the cycle_start, and then the shortest prefix to this
	cycle.

	* iface/gspn/ltlgspn.cc, iface/gspn/ssp.hh, iface/gspn/ssp.cc: Disable
	the functions that were using the interface I have just broken.

	* src/tgbaalgos/gtec/nsheap.hh (numbered_state_heap::find): Clarify
	comment.

	* src/tgba/tgbareduc.hh: Include tgbaalgos/gtec/nsheap.hh,
	not tgbaalgos/gtec/status.hh.

2004-12-10  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/misc/timer.cc, src/tgbatest/randtgba.cc: Format the statistics.

2004-12-10  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/emptchkr.test: Tune the "big degeneralized" test
	so it actually explore some accepting automata.

	* src/tgbaalgos/gtec/gtec.hh, src/tgbaalgos/gtec/gtec.cc
	(couvreur99_check_shy::couvreur99_check_shy): Add the group option,
	and redefine todo as a list so it can be iterated over.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc: Introduce
	couvreur99_shy- (for group=false) in addition to couvreur99_shy
	(for group=true).
	* iface/gspn/ssp.cc (couvreur99_check_ssp_shy_semi,
	couvreur99_check_ssp_shy): Use group=true;

	* src/tgbaalgos/randomgraph.cc (random_graph): Do not use the
	pointer of the state created as keys in sets; otherwise the graph
	created depends on the memory layout.

2004-12-09  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgba/tgbaexplicit.cc (tgba_explicit::create_transition):
	Make sure to create the source state before the destination state.

2004-12-08  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/emptiness.cc: Suppress a horrible space before a ')'.

2004-12-08  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
	(set_init_state): Return a pointer to the initial state.

	* src/tgbaalgos/emptiness.hh, src/tgbaalgos/emptiness.cc
	(tgba_run_to_tgba): New function.
	* src/tgbatest/ltl2tgba.cc: Add option -G.

2004-12-08  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/replayrun.cc (replay_tgba_run): More comments.

	* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh
	(tgba_explicit::create_transition(state*, const state*)): New function.
	* src/tgbaalgos/randomgraph.cc, src/tgbaalgos/randomgraph.hh:
	(random_graph): Revamp the algorithm to call rand() less often.
	* src/tgbatest/randtgba.cc: Add option -0 to easy profiling.

	* src/misc/random.hh: Add include guard.

2004-12-07  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/random.hh (nrand, bmrand, prand): New functions.
	(barand): New class.
	* src/misc/random.cc (nrand, bmrand, prand): New functions.
	* wrap/python/spot.i: Process src/misc/random.hh.

	* src/misc/timer.cc: Do not include cassert, then.

2004-12-07  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/tau03opt.cc: Fix a memory leak in the computation of
	accepting runs

	* src/misc/timer.hh: Include cassert.

2004-12-01  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/timer.cc: Include cassert.

2004-11-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/misc/timer.hh, src/misc/timer.cc: New files.
	* src/misc/Makefile.am (misc_HEADERS, libmisc_la_SOURCES): Add them.
	* src/tgbatest/randtgba.cc: Use time_map to measure the algorithms.
	Add the -R option.
	* src/sanity/style.sh: Let me use `for (.*;;)'.

2004-11-29  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/tau03opt.cc: Add a first version of the computation of
	accepting runs

2004-11-29  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/minimizerun.cc, src/tgbaalgos/minimizerun.hh
	(minimize_run): Rename as ...
	* src/tgbaalgos/reducerun.cc, src/tgbaalgos/reducerun.hh:
	(reduce_run): ... this.
	* src/tgbaalgos/Makefile.am, src/tgbatest/ltl2tgba.cc,
	src/tgbatest/randtgba.cc: Adjust all references.

	* src/tgbatest/emptchkr.test: Try degeneralized automata.
	* src/tgbatest/randtgba.cc (main): Pass the correct automaton to
	minimize_run().

2004-11-28  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/ltltest/equals.cc (main): Add option -E.
	* src/ltltest/parseerr.test: Use `equals -E' instead of `readltl'
	to check the parsing of erroneous strings without being sensible
	to the ordering for formulae in memory.

	* src/tgbatest/randtgba.cc (to_float): Use strtod() instead of
	strtof() to please Solaris 9.

	* configure.ac (AM_INIT_AUTOMAKE): Use option tar-ustar, we have
	filenames longer than 99 bytes.

	* wrap/python/tests/run.in: Do not override PYTHONPATH, just add
	to it.
	Report from Akim Demaille.

	* src/sanity/style.test: Make sure grep supports the options put
	into GREP_OPTIONS.

	* wrap/python/tests/run.in: Define DYLD_LIBRARY_PATH so that
	Darwin finds non-installed libraries.
	Report from Akim Demaille.

	* src/tgbatest/ltl2tgba.cc (syntax): Mention gv04 in help text.

2004-11-27  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/minimizerun.cc: Shut up a GCC warning when assert
	are disabled.

2004-11-27  Alexandre Duret-Lutz  <adl@src.lip6.fr>
	    Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/minimizerun.hh, src/tgbaalgos/minimizerun.cc: New
	files.
	* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS,
	libtgbaalgos_la_SOURCES): Add them/
	* src/tgbatest/randtgba.cc, src/tgbatest/ltl2tgba.cc: Add option -m.
	* src/tgbatest/emptchkr.test: Use -m.

2004-11-25  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh,
	src/tgbaalgos/se05.cc, src/tgbaalgos/se05.hh,
	src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.hh,
	src/tgbaalgos/tau03opt.cc: Fix comments and debug traces

	* src/tgbatest/randtgba.cc: Adjust names of algorithms.

2004-11-25  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc: Add option -D.

	* src/tgbaalgos/emptiness.hh (emptiness_check, emptiness_check_result):
	Add the TGBA considered as a protected attribute, and provide an
	automaton() accessor.
	* src/tgbaalgos/gv04.cc, src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc,
	src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.cc,
	src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/gtec.cc: Adjust to follow
	this new interface.

2004-11-24  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/bfssteps.hh, src/tgbaalgos/bfssteps.cc: Revert
	previous change (bfs_steps_with_path_conditions turned up
	useless), and document bfs_step.

	* src/tgbaalgos/bfssteps.hh (bfs_steps_with_path_conditions): New
	class.
	* src/tgbaalgos/bfssteps.cc: Remove includes that are now superfluous.

	* src/tgbaalgos/gtec/ce.cc (couvreur99_check_result::accepting_run,
	couvreur99_check_result::accepting_cycle): Rewrite the BFSs using
	the bfs_steps class.

	* src/tgbaalgos/bfssteps.hh, src/tgbaalgos/bfssteps.cc: New files.
	* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS,
	libtgbaalgos_la_SOURCES): Add them.
	* src/tgbaalgos/gv04.cc (gv04::result::accepting_run): Use
	the new bfs_steps class.

2004-11-23  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gv04.cc (gv04::result): New struct to compute
	counter examples.
	(gv04:check): Return a gv04::result.

2004-11-23  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/tau03opt.cc: Fix a warning.

2004-11-22  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/gv04.cc (gv04): Inherit from ec_statistics.
	(gv04::check, gv04::push, gv04::pop): Update the statistics for
	randtgba.
	(gv04::print_stats): Print them here too.

	* src/tgbaalgos/gtec/gtec.cc (couvreur99_check::check,
	couvreur99_check_shy::check): Compute more statistics for
	randtgba.
	(couvreur99_check::print_stats): Print these here too.

	* src/sanity/style.test: Allow "'" after ",".

	* src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh: New files, partly
	based on Thomas Martinez's src/tgbaalgos/tarjan_on_fly.cc and
	src/tgbaalgos/tarjan_on_fly.hh former implementation.
	* src/tgbaalgos/Makefile.am (libtgbaalgos_la_SOURCES,
	tgbaalgos_HEADERS): Add them.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc: Bind the
	new algorithm.
	* src/tgbatest/emptchk.test: Test it.

2004-11-22  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/emptiness_stats.hh, src/tgbaalgos/weight.cc,
	src/tgbaalgos/weight.hh: New files.
	* src/tgbaalgos/Makefile.am: Add them.
	* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc,
	src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.cc,
	src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/status.cc,
	src/tgbaalgos/gtec/status.hh, : Add emptiness check statistics
	capability.
	* src/tgbatest/randtgba.cc: Print these statistics.
	* src/tgbatest/ltl2tgba.cc: tau03opt search can deal without acceptance
	condition.
	* src/tgbatest/emptchk.test: Test tau03opt search.

2004-11-19  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbaalgos/magic.hh, src/tgbaalgos/magic.cc,
	src/tgbaalgos/se05.hh, src/tgbaalgos/se05.cc,
	src/tgbaalgos/tau03.hh, src/tgbaalgos/tau03.cc,
	src/tgbaalgos/tau03opt.hh, src/tgbaalgos/tau03opt.cc: Fix
	copyright year, and do not include <iterator>.

2004-11-18  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgbatest/randtgba.cc (main): Add options -z and -Z for statistics.
	(ce_stat): New struct.

2004-11-17  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/se05.hh, src/tgbaalgos/tau03.hh: Typo.
	* src/tgbaalgos/tau03.cc: Suppress optimisations, the algorithm is now
	the original one.
	* src/tgbaalgos/tau03opt.hh, src/tgbaalgos/tau03opt.cc: New files
	implementing most of all the optimisations of tau03.
	* src/tgbaalgos/Makefile.am: Add them.
	* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc: Make them public.
	* src/tgbatest/tba_samples_from_spin.test: Test them.

2004-11-17  Alexandre Duret-Lutz  <adl@src.lip6.fr>

	* src/tgba/tgba.hh, src/tgbaalgos/ltl2tgba_fm.hh,
	src/tgbaalgos/ltl2tgba_lacim.hh, src/tgbaalgos/stats.hh: Typos.

	* src/tgbatest/Makefile.am (EXTRA_DIST): Distribute the files
	from tba_samples_from_spin.
	* src/tgbatest/tba_samples_from_spin.test: Get these example files
	from $srcdir, for the sake of VPATH builds.
	(light_run): Remove, not needed.

	* src/misc/bareword.hh, src/misc/bddalloc.hh, src/misc/bddlt.hh,
	src/misc/escape.hh, src/misc/freelist.hh, src/misc/hash.hh,
	src/misc/hashfunc.hh, src/misc/minato.hh, src/misc/modgray.hh,
	src/misc/random.hh, src/misc/version.hh, src/tgba/state.hh: More
	Doxygen groups.

2004-11-17  Denis Poitrenaud  <Denis.Poitrenaud@lip6.fr>

	* src/tgbaalgos/magic.hh: Fix a comment and remove se05 interface.
	* src/tgbaalgos/magic.cc: Fix a comment.
	* src/tgbaalgos/se05.hh: New file.
	* src/tgbaalgos/se05.cc: Fix a comment.
	* src/tgbaalgos/tau03.hh: New file.
	* src/tgbaalgos/tau03.cc: New file.
	* src/tgbaalgos/Makefile.am: Add it.
	* src/tgbatest/ltl2tgba.cc: Add tau03 new emptiness check.
	* src/tgbatest/randtgba.cc: Add tau03 new emptiness check.
	* src/tgbatest/emptchkr.test: Fix a comment.
	* src/tgbatest/tba_samples_from_spin/explicit1_1.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_2.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_3.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_4.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_5.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_6.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_7.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_8.tba,
	src/tgbatest/tba_samples_from_spin/explicit1_9.tba,
	src/tgbatest/tba_samples_from_spin/explicit2_1.tba,
	src/tgbatest/tba_samples_from_spin/explicit2_2.tba,
	src/tgbatest/tba_samples_from_spin/explicit2_3.tba,
	src/tgbatest/tb