* src/tgba/acc.cc, src/tgba/acc.hh (to_cnf, is_cnf): New functions.
* src/bin/autfilt.cc: Add a --cnf-acceptance option.
* src/tgbatest/acc2.test: Test it.
A Fin() terms with multiple sets should not appear under an And.
* src/tgba/acc.cc (is_dnf): Fix it.
* src/tgbatest/acc.cc, src/tgbatest/acc.test: Augment test case.
This way we have for instance
(Inf(1) | Fin(2)) & (Fin(1) | Inf(3)) & Inf(0)
converted into just
(Fin(1) & Fin(2) & Inf(0)) | (Inf(0)&Inf(1)&Inf(3))
while previously we would produce 4 terms:
(Fin(2) & Fin(1) & Inf(0)) | (Fin(2) & (Inf(0)&Inf(3)))
| (Fin(1) & (Inf(0)&Inf(1))) | (Inf(0)&Inf(1)&Inf(3))
* src/tgba/acc.cc (to_dnf): Recode it.
* src/tgbatest/acc2.test: Adjust.
Because scc_info does not perform a full emptiness check, it is not
always able to tell whether an SCC is accepting if the acceptance
condition use Fin primitives. This introduce is_rejecting_scc() in
addition to to is_accepting_scc(). Only one of them may be true, but
they can both be false if scc_info has no idea whether the SCC is
accepting.
* src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh: Implement
is_rejecting_scc().
* src/bin/ltlcross.cc, src/tgba/acc.cc, src/tgba/acc.hh,
src/tgbaalgos/dtgbacomp.cc, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/remfin.cc, src/tgbaalgos/safety.cc,
src/tgbaalgos/sccfilter.cc: Use it.
* src/tgbaalgos/dotty.cc: Use is_rejecting_scc() and is_accepting_scc()
to color SCCs.
* doc/org/oaut.org: Document the colors used.
* src/tgbatest/neverclaimread.test, src/tgbatest/readsave.test: Adjust
tests.
* src/tgbatest/sccdot.test: New test case.
* src/tgbatest/Makefile.am: Add it.
* src/tgbaalgos/simulation.cc (direct_simulation): Do not store the
original_ automaton as a reference. Otherwise with LTO (+ probably NRVO)
we get a situation where the result automaton (that will be stored in
original_) copies the properties of itself.
Fixes#59.
* src/tgbaalgos/hoa.cc: Add option i.
* src/bin/common_aoutput.cc, src/bin/dstar2tgba.cc,
src/tgbaalgos/hoa.hh: Document it.
* src/tgbatest/hoaparse.test: Test it.
* src/tgbaalgos/dotty.cc: Display the acceptance if "a" is used.
* src/bin/common_aoutput.cc, src/bin/dstar2tgba.cc,
src/tgbaalgos/dotty.hh: Document it.
* src/tgbatest/readsave.test: Test it.
* src/tgba/tgbagraph.cc (merge_transitions): Disable acceptance
merging if Fin acceptance is used.
* src/tgbaalgos/degen.cc, src/tgbaalgos/dtbasat.cc,
src/tgbaalgos/dtgbasat.cc, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/lbtt.cc, src/tgbaalgos/minimize.cc,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/safety.cc,
src/tgbaalgos/sccfilter.cc, src/tgbaalgos/simulation.cc: Throw an
exception if an unsupported type of acceptance is received.
* src/tgba/acc.cc, src/tgba/acc.hh: Move the strip() routine from
acc_cond into acc_cond::mark_t, and the strip() routine from
cleanacc.cc into acc_cond::acc_code. Introduce helper functions
to create inf()/fin()/t()/f() at the acc_code level.
* src/tgbaalgos/cleanacc.cc: Simplify, using the strip() function
from acc_code.
* src/tgbaalgos/mask.cc (mask_acc_sets): Use the strip() function
from acc_code so that it work on non-Buchi acceptance.
* src/tgbatest/maskacc.test: Add a test for the latter change.
* src/tgbaalgos/sccfilter.cc, src/tgbatest/acc.cc: Adjust the
use mark_t::strip().
* src/bin/ltlcross.cc: Remove Fin-acceptance before
doing checks. More --verbose output.
* src/tgba/acc.cc, src/tgba/acc.hh: Add an eval_sets() function
to find the set of acceptance sets needed to satisfy the condition
in an accepting SCC.
* src/tgbaalgos/gtec/ce.cc: Use eval_sets() when computing
a counter example.
* src/tgbaalgos/gtec/gtec.cc: Raise an exception when called
on an acceptance that contains Fin.
* src/tgbatest/ltl2dstar3.test, src/tgbatest/ltlcrossce2.test:
New files.
* src/tgbatest/Makefile.am: Add them.
* src/tgba/tgba.cc (is_empty): Call remove_fin if needed.
* src/tgbaalgos/product.cc, src/tgbaalgos/dtgbacomp.cc: Adjust
to work with generic acceptance.
Instead of adding one set per term in the DNF, reuse the
removed Fin(x) sets as Inf(x) sets.
* src/tgbaalgos/remfin.cc: Here.
* src/tgbatest/remfin.test: Additional test.
* src/tgba/acc.cc, src/tgba/acc.hh (complement): New method.
* src/bin/autfilt.cc: Add a --complement-acceptance option.
* src/tgbatest/acc2.test: Test it.
* src/tgbaalgos/cleanacc.cc, src/tgbaalgos/cleanacc.hh: New file.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgba/acc.hh, src/tgba/tgba.hh (get_acceptance): Return a
reference.
* src/bin/autfilt.cc: Add a --cleanup-acceptance option.
* src/tgbatest/hoaparse.test: Test it.
and make sure are_isomorphic does not look only at the number of
acceptance sets
* src/tgba/acc.hh: Here.
* src/tgbaalgos/are_isomorphic.cc: Use it to ensure two automata
have the same acceptance condition.
* src/tgbatest/explpro4.test: Test product between Büchi and co-Büchi,
and make sure the isomorphic check look at the acceptance condition.
* src/tgbaalgos/mask.cc, src/tgbaalgos/mask.hh: Rename transform_mask
to accessible_mask. Add Copy version and use it in mask_keep_states().
* src/tgbatest/maskkeep.test: Update.
Depending on whether the global atomic proposition map was destroyed
after the global automata declared in autfilt, we could get
double-free errors.
* src/bin/autfilt.cc: Force destruction of automata in main().
* src/bin/autfilt.cc: Add option --keep-states.
* src/tgbaalgos/mask.cc, src/tgbaalgos/mask.hh: Keep the selected states
and update the initial state.
* src/tgbatest/Makefile.am: Adjust.
* src/tgbatest/maskkeep.test: New file.
* src/bin/common_output.cc, src/bin/common_output.hh:
Add count_output.
* src/bin/ltlfilt.cc: Add the --count option.
* src/ltltest/ltlfilt.test: Test it.
* NEWS: Mention it.
Fixes#56.
* src/bin/common_aoutput.cc, src/bin/common_aoutput.hh,
src/bin/dstar2tgba.cc: Implement it.
* src/bin/autfilt.cc, src/bin/ltl2tgba.cc, src/bin/ltldo.cc,
src/bin/randaut.cc: Fix main() to catch exceptions from the
constructor of the automaton printer as well.
* src/tgbatest/randaut.test: Add a test case.
* doc/org/oaut.org: Document it.
Suggested by Joachim Klein. Fixes#57.
* src/bin/common_file.hh, src/bin/common_file.cc: New file.
* src/bin/Makefile.am: Build them.
* src/bin/ltlcross.cc: Use the output_file class.
* src/tgbatest/ltlcross3.test: Test >>.
* NEWS: mention it.
