Merge all eltlast/ files into formula.hh (except automatop.hh).

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

using 80 columns.

* 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.

events.

Add support for -r8/-fr8.

construction.

* 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).

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.

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.

(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.

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.

--logfile-fd to please newer versions of Valgrind.
* src/ltltest/defs.in, src/evtgbatest/defs.in: Likewise.

* src/tgbaalgos/emptiness_stats.hh (unsigned_statistics_copy): New
class.

heuristic.

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.

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.

before the degeneralized automaton.

* 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".

"condition heuristic".  Suggested by Heikki Tauriainen.
* src/tgbatest/randtgba.cc: Test it.

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.

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.

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

(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.

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.

unsigned_statistics interface.
* bench/emptchk/README: Adjust description of output.

* 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.

(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.

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/tgbatest/randtgba.cc: Check the range of all arguments.

and by bench/emptchk/.
* src/tgbatest/tba_samples_from_spin.test: Delete.
* src/tgbatest/tba_samples_from_spin/: Delete.
* src/tgbatest/Makefile.am: Adjust.