* 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.

src/tgbatest/dfs.test: Adjust headers to 80 columns.

* configure.ac: Enable parallel-tests.
* src/eltltest/defs.in, src/evtgbatest/defs.in,
src/ltltest/defs.in, src/tgbatest/defs.in: Always output verbose
tests.  Make a subdirectory for each test case.
* src/ltltest/Makefile.am, src/eltltest/Makefile.am,
src/tgbatest/Makefile.am, src/evtgbatest/Makefile.am: Remove
CLEANFILES and clean the test subdirectories in a distclean-local
rule instead.
* src/eltltest/acc.test, src/eltltest/nfa.test,
src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.test,
src/evtgbatest/product.test, src/evtgbatest/readsave.test,
src/ltltest/equals.test, src/ltltest/lunabbrev.test,
src/ltltest/nenoform.test, src/ltltest/parse.test,
src/ltltest/parseerr.test, src/ltltest/reduc.test,
src/ltltest/reduccmp.test, src/ltltest/syntimpl.test,
src/ltltest/tostring.test, src/ltltest/tunabbrev.test,
src/ltltest/tunenoform.test, src/tgbatest/bddprod.test,
src/tgbatest/complementation.test, src/tgbatest/dfs.test,
src/tgbatest/dupexp.test, src/tgbatest/eltl2tgba.test,
src/tgbatest/emptchk.test, src/tgbatest/emptchke.test,
src/tgbatest/emptchkr.test, src/tgbatest/explicit.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explpro4.test, src/tgbatest/explprod.test,
src/tgbatest/ltl2neverclaim.test, src/tgbatest/ltl2tgba.test,
src/tgbatest/ltlprod.test, src/tgbatest/mixprod.test,
src/tgbatest/readsave.test, src/tgbatest/reduccmp.test,
src/tgbatest/reductgba.test, src/tgbatest/scc.test,
src/tgbatest/spotlbtt.test, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.test: Adjust to run from a subdirectory.

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/ltltest/reduc.test: Use randltl -u, and run it through valgrind.

* 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.

change from 2004-09-13.

src/tgbatest/reductgba.cc,
src/tgbatest/ltl2tgba.cc:
Add option for reduction of TGBA.

* src/tgbatest/emptchk.test, src/tgbaalgos/Makefile.am,
src/tgbaalgos/tarjan_on_fly.hh, src/tgbaalgos/tarjan_on_fly.cc,
src/tgbaalgos/nesteddfs.hh, src/tgbaalgos/nesteddfs.cc,
src/tgbaalgos/minimalce.hh, src/tgbaalgos/minimalce.cc,
src/tgbaalgos/colordfs.hh, src/tgbaalgos/colordfs.cc:
Remove some bugs.

src/tgbaalgos/gtec/ce.cc:
Modification of construction of counter example.

* src/tgbaalgos/reductgba_sim.hh src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/reductgba_sim_del.cc,
src/tgba/tgbareduc.hh, src/tgba/tgbareduc.cc:
Modification for delayed simulation.


* src/tgbaalgos/gtec/ce.hh,
* src/tgbatest/ltl2tgba.cc,

Reported by <Denis.Poitrenaud@lip6.fr> (failure on Cygwin).

* src/ltltest/formulae.txt: New files (2200 LTL formulea generated
by Wring).
* src/ltltest/formules.ltl: Delete.
* src/reduc.test: Read formulae.txt.

* src/ltltest/Makefile.am (CLEANFILES): Clean result.data.

* src/ltltest/inf.test: More test.
* src/ltlvisit/basereduc.cc, src/ltlvisit/forminf.cc (spot):
Use dynamic_cast.
* src/ltlvisit/reducform.cc, src/ltlvisit/reducform.hh,
src/ltltest/reduc.test, src/ltltest/reduc.cc: Add an option
to choose which rules applies to simplify the formula.

src/ltlvisit/formlength.cc, src/ltlvisit/reducform.cc,
src/ltlvisit/reducform.hh: Fix copyright year, these files were
created in 2004.