* spot/twa/twagraph.cc: Implement it.
* spot/twa/twagraph.hh, NEWS: Document it.
* tests/python/mergedge.py: Test it.
* tests/core/ltlsynt.test, tests/python/games.ipynb: Adjust expectations.
We have enough outputs checked verbatim everywhere so that testing
that three execution of a single command return the same output is now
a waste of time.
* tests/core/simdet.test: Remove.
* tests/Makefile.am: Adjust.
Also have simul-max default to 4096 instead of 512, because it's
really simul-trans-pruning that is very slow and need to be limited.
* spot/twaalgos/postproc.cc, spot/twaalgos/postproc.hh,
spot/twaalgos/simulation.cc, spot/twaalgos/simulation.hh,
spot/twaalgos/determinize.cc, spot/twaalgos/determinize.hh:
Implement the above options.
* bin/spot-x.cc, NEWS: Document them.
* tests/core/ltlsynt.test, tests/core/minusx.test,
tests/core/sim3.test: Add some test cases.
This fixes#452, and also fix a bug related to transiant SCCs
incorrectly merged in cosimulation: the source of the edges was
updated without fixing the chaining of the edges.
* spot/twaalgos/simulation.cc: Fix all the above.
* tests/python/simstate.py: Add test case from issue #452.
* tests/core/det.test, tests/core/ltlsynt.test,
tests/core/satmin.test: Lower expected sizes.
* tests/python/decompose.ipynb: Adjust for changed order.
Fixes issue #232.
* spot/parseaut/parseaut.yy, spot/parseaut/public.hh,
spot/parseaut/scanaut.ll: Add support for #line.
* tests/core/parseaut.test: Test it.
* NEWS: Mention it.
Because the loops iterate in the opposite order, multiple
test cases need to be adjusted.
* spot/taalgos/tgba2ta.cc, spot/twaalgos/alternation.cc,
spot/twaalgos/dualize.cc, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/simulation.cc, spot/twaalgos/stutter.cc,
spot/twaalgos/toweak.cc: Replace loops based on
bdd_satonest(x,y,bddtrue) by loops based on minterms_of(x,y).
* tests/core/degenscc.test, tests/core/dualize.test,
tests/core/genltl.test, tests/core/readsave.test,
tests/python/alternation.ipynb, tests/python/automata.ipynb,
tests/python/decompose.ipynb, tests/python/decompose_scc.py,
tests/python/dualize.py, tests/python/sccinfo.py,
tests/python/simstate.py, tests/python/testingaut.ipynb,
tests/python/word.ipynb: Adjust expected test cases. The
only regression is in genltl.test, but the worsened case
should eventually be fixed as discussed in issue #425 anyway.
* spot/twaalgos/simulation.hh, spot/twaalgos/simulation.cc: Add
reduce_direct_sim(), reduce_direct_cosim() and
reduce_direct_iterated() wich reduce an automaton using simulation.
This functions wrap the class direct_sim wich compute simulation
with a new method.
* doc/spot.bib: Add ref.
* tests/python/simstate.py: Add tests for the new simulation.
This proceeds from a discussion with Michaël Cadilhac.
http://lists.lrde.epita.fr/pipermail/spot/2021q1/000356.html
* bin/autfilt.cc (--kill-states): New option.
* NEWS: Mention those.
* spot/twa/twagraph.hh, spot/twa/twagraph.cc: Add a kill_state()
method.
* tests/core/maskkeep.test: Test it.
* spot/tl/formula.cc: Correctly set eventual and universal properties
for ->, <->, and xor. This wasn't really relevant before, but there
are now situation where those are not rewritten.
* tests/core/kind.test: Adjust expected output.
* tests/core/ltl2tgba2.test: New test case, reported by Florian
Renkin.
* NEWS: Mention the bug.
When gf-guarentee works and produce a deterministic automaton, use it
right away without comparing it with the automaton produced by the
regular translation. This used to be the case for all -D scenarios
except -G -D.
Reported by Florian Renkin.
* spot/twaalgos/translate.cc: Use the result of
gf_guarantee_to_ba_maybe() or fg_safety_to_dca_maybe() whenever -D is
used.
* spot/twaalgos/postproc.cc: Call remove_unused_ap() in finalize(), to
iron out some slight output differences.
* tests/core/ltl2tgba2.test, tests/python/toparity.py: Lower expected
results in the test cases.
* tests/python/automata.ipynb, tests/core/prodor.test: Adjust to new
order.
This improves the determinism in a few cases.
* spot/twa/twagraph.cc (merge_edges): Encapsulate the two
passes into lambdas so that they are very easy to swap.
* spot/twa/twagraph.hh (merge_edges): Adjust documentation.
* tests/python/mergedge.py: Add test case.
* tests/core/alternating.test, tests/python/alternation.ipynb:
Determinism was improved.
* tests/core/parity2.test, tests/core/readsave.test,
tests/core/sbacc.test, tests/python/_product_susp.ipynb,
tests/python/atva16-fig2a.ipynb, tests/python/decompose.ipynb,
tests/python/highlighting.ipynb, tests/python/satmin.ipynb,
tests/python/simstate.py: Adjust expected order of edges.
* NEWS: Mention the change.
* bin/common_post.cc, bin/randaut.cc: Implement -b/--buchi.
Also add --sba as alias for -B, and --gba as alias for --tgba.
* NEWS: Document those changes.
* doc/org/ltl2tgba.org, doc/org/oaut.org: Adjust documentation.
* tests/core/ltl2tgba2.test, tests/core/ltlcross2.test,
tests/core/randaut.test: Add more tests.
* tests/core/sbacc.test: --sbacc cannot be abbreviated as --sba
anymore.
Mentioned in issue #298.
* spot/twaalgos/determinize.cc: Do not copy prop_complete of
the input if it is false.
* tests/python/298.py: Test it.
* NEWS: Mention the bug.
Related to issue #298.
* spot/twaalgos/determinize.cc: Recognize braces that are temporary
to avoid emitting colors when they become empty.
* tests/python/298.py: New file, showing a reduction of colors.
* tests/Makefile.am: Add it.
* tests/core/ltlsynt.test: Adjust expected output (now smaller).
* tests/core/genltl.test: Adjust one expected output (now larger).
* NEWS: Mention the issue.
This helped confirming a behavior observed in #298.
* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh: Add support
for -x exprop.
* bin/spot-x.cc, NEWS: Document it.
* tests/core/ltl2tgba2.test: Test it.
* spot/twaalgos/game.hh, spot/twaalgos/game.cc: Rename
solve_reachability_game() as solve_safety_game(), rewrite it (the old
implementation incorrectly marked dead states as winning for their
owner).
* tests/python/paritygame.ipynb: Rename as...
* tests/python/games.ipynb: ... this, and illustrate
solve_safety_game().
* tests/Makefile.am, NEWS, doc/org/tut.org: Adjust.
* tests/python/except.py: Add more tests.
Part of #444.
* spot/twaalgos/minimize.cc (minimize_wdba): Terminal automata do not
need a product to decide which states are accepting in the DBA. This
is faster, and also determinize more formulas of #443.
* tests/core/ltl2tgba2.test: Adjust the expected iteration where
determinization will be aborted.
Part of #444.
* spot/twaalgos/powerset.cc, spot/twaalgos/powerset.hh: Implement
accepting sink handling.
* spot/twaalgos/minimize.cc (minimize_wdba): Pass sinks to
tgba_powerset.
* spot/misc/bitvect.hh: Add an interesects method.
* tests/core/ltl2tgba2.test: More tests.
* NEWS: Mention this new feature.
Fixes#443, reported by Roei Nahum. (However the fix
only works for the development version, where wdba-det-max
was introduced to work around that kind of problem.)
* spot/twaalgos/minimize.cc: Avoid aborter being implicitly
converted to Boolean.
* tests/core/ltl2tgba2.test: Add test case.
* THANKS: Add Roei Nahum.
This fixes#441, reported by Jérôme Dubois.
* tests/python/mergedge.py: New file.
* tests/Makefile.am: Add it.
* spot/twa/twagraph.cc (merge_edges): Fix initialization of second
loop.
* NEWS: Mention the bug.
spot/twaalgos/postproc.hh: Introduce options Buchi and
GeneralizedBuchi. The latter is similar to TGBA but the former differs
from BA in that it does not imply state-based acceptance, since that
can be specified separately. Also all other acceptance types are not
abbreviated, so those new names make more sense.
* NEWS: Mention that.
* spot/twaalgos/postproc.cc, spot/twaalgos/translate.cc: Adjust
to support Buchi and GeneralizedBuchi without breaking BA and TGBA.
* bin/autfilt.cc, bin/common_aoutput.cc, bin/common_post.cc,
bin/ltl2tgta.cc, doc/org/tut10.org, doc/org/tut12.org,
doc/org/tut30.org, python/spot/__init__.py,
tests/python/automata.ipynb, tests/python/langmap.py,
tests/python/misc-ec.py, tests/python/satmin.ipynb,
tests/python/satmin.py, tests/python/toweak.py: Use the new names.
* tests/Makefile.am: Add missing langmap.py.
* spot/twaalgos/synthesis.cc, spot/twaalgos/synthesis.hh: New files
regrouping the functionnalities split and apply_strategy for synthesis
* python/spot/impl.i, spot/twaalgos/Makefile.am: Add them.
* spot/twaalgos/split.cc, spot/twaalgos/split.hh: No longer contains
the splits necessary for for synthesis, moved to
spot/twaalgos/synthesis.cc, spot/twaalgos/split.hh Split is now faster
and reduces the number of intermediate states, reducing the overall
size of the arena
* spot/misc/game.cc, spot/misc/game.hh: Renaming propagate_players to
alternate_players.
* tests/core/ltlsynt.test, tests/python/split.py: Update tests.
* bin/ltlsynt.cc: Adjust to new split. Swap order of split and
to_parity for lar.
This is a bug I introduced while merging Philipp's patch.
* spot/misc/game.cc (parity_game::solve): Set the strategy for player
0 in useless SCCs.
(parity_game::fix_scc): Do not use sub_game_ to detect edges exiting
the SCC.
* tests/python/game.py: New file.
* tests/Makefile.am: Add it.
* spot/misc/game.cc, spot/misc/game.hh: More efficient implementation
of Zielonka's algorithm to solve parity games. Now supports SCC
decomposition and efficient handling of certain special cases.
* doc/org/concepts.org: Document "strategy" and "state-winner"
properties.
* bin/ltlsynt.cc, tests/python/paritygame.ipynb: Adjust.
* tests/core/ltlsynt.test: Add more tests.
* spot/twaalgos/aiger.cc, spot/twaalgos/aiger.hh: Reimplement
print_aiger for speed gain, also heuristics to minimize the number
of gates as well as different encoding types have been added.
* bin/ltlsynt.cc: Make the new options for print-aiger available.
* tests/core/ltlsynt.test: Adjust tests.
This restricts the time spent in translating sub-formulas for
implication tests by limiting the associated automata to 64 states by
default. Doing so this does worsen any test case, and actually remove
all calls the BuDDy's GC in bdd.test.
* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh,
spot/tl/simplify.cc, spot/tl/simplify.hh, spot/tl/contain.hh,
spot/tl/contain.cc, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/ltl2tgba_fm.hh: Add support for the option or
its constraint via an output_aborter.
* bin/spot-x.cc, NEWS: Document it.
* tests/core/bdd.test: Adjust and augment test case.
* python/spot/__init__.py (setup): Reduce the default maximal width of
automata so that Jupyter output does not add an horizontal scroll bar
for a few pixels.
* tests/python/automata-io.ipynb: Adjust.
* python/spot/impl.i: Process game.hh.
* spot/misc/game.cc, spot/misc/game.hh: Make the output of
parity_game_solve() a solved_game object for easier manipulation in
Python.
* bin/ltlsynt.cc: Adjust usage.
* tests/python/paritygame.ipynb: New file.
* tests/Makefile.am, doc/org/tut.org: Add it.
* NEWS: Mention these bindings.
* bin/ltlsynt.cc (complete_env): Replace this function by...
* spot/misc/game.hh, spot/misc/game.cc (propagate_players): ... this
new one, hiding the "state-player" business from ltlsynt. Also do not
create a sink states unless necessary.
* tests/core/ltlsynt.test: Adjust expected number of states.
* spot/twaalgos/dot.cc: Honor the "state-player" property and draw
player 1 states using diamonds.
* doc/org/hoa.org: Show an example.
* tests/core/gamehoa.test: Make sure diamond is output.
* NEWS: Mention this.
* spot/parseaut/parseaut.yy, spot/parseaut/scanaut.ll,
spot/twaalgos/hoa.cc: Add input and output support.
* doc/org/hoa.org: Document the HOA extension.
* bin/ltlsynt.cc: Add a --print-game-hoa option to
produce such format.
* tests/core/gamehoa.test: New file to test this.
* tests/Makefile.am: Add it.
* NEWS: Mention this new feature.
Fixes#403.
* spot/twaalgos/cleanacc.cc (simplify_complementary_marks_here):
Assume that two colors are complementary in a broad sense, i.e., on is
present if (but not only if) the other is missing before applying
those rewritings. Technically, this is usually not necessary, because
the changes done in #418 will cause such "covering-the-full-automaton"
pair of colors to be disjoint so complementary in a strict sense. It
might make a difference (this is not tested) in presence of reused
colors which #418 cannot remove. In any case, it's simply less code
to implement the broad sense.
* tests/python/toparity.py: Add test case from #403, which is
reduced to two states with recent optimizations.
This fixes issue #418.
* spot/twa/acc.cc,
spot/twa/acc.hh (acc_cond::acc_code::useless_colors_patterns): New
method to detect patterns of colors allowing other colors to be added
or removed at will.
* spot/twaalgos/cleanacc.cc (simplify_acceptance_here): Use the above
patterns to remove some useless colors from transitions and hope that
this can help simplify the acceptance condition.
* spot/twaalgos/degen.cc (propagate_marks_vector): Use the pattern to
add more colors.
* tests/core/ltl2tgba2.test: Add the test case from issue #418.
* tests/core/ltl2dstar4.test, tests/core/satmin3.test,
tests/core/sccdot.test, tests/core/sim3.test,
tests/python/automata.ipynb, tests/python/decompose.ipynb,
tests/python/merge.py, tests/python/pdegen.py, tests/python/remfin.py,
tests/python/toparity.py, tests/python/tra2tba.py: Adjust all test
cases.
* NEWS: Mention this new feature.
