This uses the same trick as discussed in issue #566 and issue #568.
* spot/twaalgos/determinize.cc (safra_support): Use a basis
if it is smaller than 2^|support| for the current Safra state.
* tests/core/568.test: Add some tests.
* NEWS: Mention the optimization.
Closes issue #568.
* spot/twaalgos/simulation.cc (direct_simulation::build_result):
Implement an alternate loop based on edge_separator::basis to iterate
over a signature to build results.
* tests/core/568.test: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention the optimization.
These are meant to test the optimization implemented in issue #568.
* spot/gen/automata.hh, spot/gen/automata.cc, bin/genaut.cc: Add
support for --cycle-log-nba and --cycle-onehot-nba.
* tests/core/genaut.test: Add some tests.
* tests/python/gen.ipynb: Illustrate them.
* NEWS: Mention them.
Related to issue #563.
* spot/twaalgos/hoa.hh (create_alias_basis): New function.
* spot/twaalgos/hoa.cc (create_alias_basis): New function.
(print_hoa): Add support for option 'b' and create_alias_basis
in this case.
* bin/common_aoutput.cc, NEWS: Document -Hb.
* tests/core/readsave.test, tests/python/aliases.py: Add test cases.
This script was first posted on https://github.com/adl/hoaf/issues/73
* doc/org/tut25.org: New file.
* doc/Makefile.am: Add it.
* doc/org/tut.org, doc/org/tut21.org, NEWS: Link to it.
* doc/org/init.el.in: Install *.py files.
* doc/org/.gitignore: Add toba.py.
For issue #566.
* spot/twaalgos/powerset.cc: Use the edge_separator on automata
with |AP|>5 that have few distinct labels.
* tests/core/566.test: Augment test-case.
* NEWS: Update.
This generalizes (and replaces) the two-argument split that was
introduced in c2832cabfc.
* spot/twaalgos/split.cc, spot/twaalgos/split.hh (edge_separator): New
class.
(separate_edges): New function.
(split_edges): Remove the two argument version.
* spot/twaalgos/forq_contains.cc: Adjust to use the edge_separator
class.
* tests/python/splitedge.py: Adjust test case.
* tests/python/split.ipynb: New file.
* tests/Makefile.am, doc/org/tut.org: Add it.
* NEWS: Mention it.
Related to issue #566.
* spot/twaalgos/alternation.cc (alternation_remover::run): Here.
* tests/core/566.test: Augment test case.
* NEWS: Mention the change.
For issue #566.
* spot/twaalgos/dualize.cc (dualizer::copy_edges): Implement another
loop to be used when the number of outgoing edges of a state is
smaller than the number of AP.
* tests/core/566.test: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention the improvement.
Based on a report by Emmanuel Filiot, who was surprized that dualizing
Büchi did not always produce co-Büchi.
* spot/twaalgos/dualize.cc: Remove the call to
cleanup_acceptance_here.
* spot/twaalgos/dualize.hh: Improve documentation.
* NEWS: Mention the possible backward incompatible change.
* tests/core/dualize.test, tests/python/dualize.py,
tests/python/pdegen.py: Adjust test cases.
* spot/twaalgos/complement.cc (complement): Call
cleanup_acceptance_here when dualize() returns a smaller automaton.
* THANKS: Add Emmanuel.
Several people have asked for a way to check whether a word is
accepted by an automaton, including at least Jonah Romero and Scott
Buckley. So it's time we have it.
* spot/twa/twa.hh, spot/twa/twa.cc,
spot/twaalgos/word.hh (intersects): Add the new variant.
* spot/twa/fwd.hh: Forward declare twa_word, so that
we can use it in twa.hh.
* spot/twaalgos/forq_contains.cc: Use the new intersection check.
* tests/python/word.ipynb, NEWS: Mention it.
* THANKS: Add Scott Buckley.
Work around a recent decision in Jupyter Lab and Notebook to render
<svg> is inline <img>, breaking tooltips or text selection.
(Rerendering all notebooks was painful.)
* NEWS: Mention the change.
* python/spot/__init__.py: Add a _repr_html_ method to all
classes that had a _repr_svg_. It seems Jupyter will use
_repr_html_ by default.
* python/spot/jupyter.py: SVG replace the _repr_svg_ method
by a _repr_html.
* tests/python/_altscc.ipynb, tests/python/_autparserr.ipynb,
tests/python/_aux.ipynb, tests/python/_mealy.ipynb,
tests/python/_partitioned_relabel.ipynb,
tests/python/_product_susp.ipynb, tests/python/_product_weak.ipynb,
tests/python/_synthesis.ipynb, tests/python/aliases.ipynb,
tests/python/alternation.ipynb, tests/python/atva16-fig2a.ipynb,
tests/python/atva16-fig2b.ipynb, tests/python/automata-io.ipynb,
tests/python/automata.ipynb, tests/python/cav22-figs.ipynb,
tests/python/contains.ipynb, tests/python/decompose.ipynb,
tests/python/formulas.ipynb, tests/python/games.ipynb,
tests/python/gen.ipynb, tests/python/highlighting.ipynb,
tests/python/ltsmin-dve.ipynb, tests/python/ltsmin-pml.ipynb,
tests/python/parity.ipynb, tests/python/product.ipynb,
tests/python/randaut.ipynb, tests/python/satmin.ipynb,
tests/python/stutter-inv.ipynb, tests/python/synthesis.ipynb,
tests/python/testingaut.ipynb, tests/python/twagraph-internals.ipynb,
tests/python/word.ipynb, tests/python/zlktree.ipynb: Update all
notebooks.
* spot/twaalgos/postproc.hh (postprocess::acd_): Default to true.
* spot/twaalgos/postproc.cc (postprocess::run): When acd is used
to color an automaton, do not run scc_filter to remove color
from transiant edges.
* tests/python/acd.py: New file.
* tests/Makefile.am: Add it.
* spot/twaalgos/alternation.hh, spot/twaalgos/alternation.cc: Add the
new options.
* spot/twaalgos/complement.cc, spot/twaalgos/minimize.cc: Use it.
* tests/core/optba.test: Add a test case from Yann.
* NEWS: Mention those changes.
Fixes#555 reported by Dávid Smolka.
* spot/twa/twagraph.cc (defrag_states): Update highlight-edge.
* spot/graph/graph.hh (defrag_states): Just point to
twa_graph::defrag_states in a comment, because the latter relies
on the implementation detail of graph::defrag_state.
* tests/python/parsetgba.py: Add test case.
* NEWS: Mention the bug.
Fixes#554, reported by Dávid Smolka.
* python/spot/impl.i (highlight_edge, highlight_state): Add versions
where the color is nullptr and map that to None.
(remove_highlight_states, remove_highlight_edges): New function.
* tests/python/highlighting.ipynb: Demonstrate those new methods.
Fixes issue #553.
* spot/twaalgos/strength.cc (is_type_automaton): Make sure an
accepting SCC is not followed by a rejecting one.
(is_terminal_automaton): Mark the third-argument version deprecated.
* spot/twaalgos/strength.hh: Adjust.
* spot/twaalgos/couvreurnew.cc: Remove the inappropriate terminal
optimization.
* bin/ltlfilt.cc, spot/tl/hierarchy.cc, spot/twaalgos/gfguarantee.cc,
tests/core/ikwiad.cc: Remove usage of the third argument of
is_terminal_automaton.
* tests/core/readsave.test, tests/core/strength.test: Adjust test
cases.
* NEWS: Mention the bug.
This fixes#552, reported by Rüdiger and Ayrat.
* tests/sanity/style.test: Warn aginst iterations on edge_vector.
* spot/parseaut/parseaut.yy, spot/twaalgos/complete.cc,
spot/twaalgos/parity.cc: Iterate over edges(), not edge_vector().
* tests/core/ltlcross.test: Add a test case for #552.
* NEWS: Mention the bug.
* spot/twaalgos/sccfilter.cc: If an inherently-weak automaton has
no rejecting cycle, reduce its acceptance to t instead of Büchi.
* spot/twa/acc.hh (operator==, operator<): Fix comparisons of
true acceptances.
* NEWS: Mention these two changes.
* spot/twaalgos/sccfilter.hh: Update documentation.
* spot/twaalgos/determinize.cc (tgba_determinize): The call
to scc_filter assume that the input BA is never reduced to t
acceptance. Call scc_filter with an extra option to ensure that.
* spot/twaalgos/postproc.cc (do_scc_filter): Adjust to add the
extra option when we want to build Büchi or coBuchi.
(ensure_ba): Don't mark trivial SCCs as accepting.
* tests/core/complement.test, tests/core/dstar.test,
tests/core/ltlsynt.test, tests/core/readsave.test,
tests/core/wdba2.test, tests/python/_product_susp.ipynb,
tests/python/automata-io.ipynb, tests/python/dualize.py,
tests/python/highlighting.ipynb, tests/python/intrun.py,
tests/python/setacc.py, tests/python/simstate.py,
tests/python/stutter-inv.ipynb, tests/python/zlktree.py: Adjust test
cases.
This is a followup to issue #548, which was caused by edges being
dropped. In that context dropping edge was not really desirable, so
let's make this behavior configurable.
* spot/parseaut/public.hh: Add a new option.
* python/spot/__init__.py: Likewise.
* spot/parseaut/parseaut.yy: Honor that option.
* tests/python/parsetgba.py: Add a short test for it.
* NEWS: Mention it.
This fixes#548, reported by Dávid Smolka.
* spot/parseaut/parseaut.yy: Update the edge numbers in the
highlight-edges property.
* tests/core/highlightstate.test: Add test case.
* NEWS: Mention the bug.
This massive set of changes was triggered by issue #546.
In addition to the better handling of !weak, this also adds some
weak properties in a few places.
* spot/twaalgos/product.cc (product_aux): Throw some exception
if an automaton with t or f acceptance has the !weak property. This
is a cheap sanity check to help detect algorithms that incorrectly
assumed !weak input would necessarily become !weak output.
* spot/twaalgos/hoa.cc (print_hoa): Likewise, also do not assume
that terminal implies very-weak.
* spot/parseaut/parseaut.yy: Add several diagnostics for similar
cases. E.g., a one-state automaton cannot be declared as !very-weak.
* tests/core/parseaut.test: Check those new diagnostics.
* spot/twa/twa.cc (twa::intersecting_run): Temporary remove the weak
property by setting it to maybe, not to false.
* spot/twaalgos/minimize.cc, spot/twaalgos/parity.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/simulation.cc: Account for
the fact that these algorithm may in fact improve the weakness.
* spot/twaalgos/strength.cc: Only look at colors used by the
acceptance condition when deciding weakness.
* spot/twaalgos/synthesis.cc: Declare the strategy as weak.
* bin/randaut.cc: Add weak to automata with t/f acceptance.
* spot/kripke/kripke.hh: Make kripke structures as weak.
* tests/core/acc_word.test, tests/core/alternating.test,
tests/core/complement.test, tests/core/complete.test,
tests/core/ltlsynt.test, tests/core/randomize.test,
tests/core/readsave.test, tests/core/remfin.test,
tests/core/sccsimpl.test, tests/core/strength.test,
tests/core/wdba2.test, tests/ltsmin/kripke.test,
tests/python/automata-io.ipynb, tests/python/automata.ipynb,
tests/python/dbranch.py, tests/python/highlighting.ipynb,
tests/python/kripke.py, tests/python/ltsmin-dve.ipynb,
tests/python/mealy.py, tests/python/simstate.py: Adjust all these test
cases.
* NEWS: Mention the fixes.
Part of issue #546 reported by Rüdiger Ehlers
* spot/twaalgos/product.cc (product_susp): Fix detection and handling
of unsatisfiable/universal acceptances.
* tests/python/_product_susp.ipynb: Add test cases.
* spot/tl/apcollect.hh,
spot/tl/apcollect.cc (realizability_simplifier): New class, built from
code existing in ltlsynt, so that other tools may use this too.
* bin/ltlsynt.cc: Use realizability_simplifier.
* spot/twaalgos/aiger.cc, spot/twaalgos/aiger.hh: Adjust to use
realizability_simplifier instead of relabeling_map.
* NEWS: Mention the new class.
This is actually used by next patch.
* spot/twaalgos/sccinfo.cc, spot/twaalgos/sccinfo.hh: Here.
* tests/python/sccinfo.py: Add a small test case.
* NEWS: Mention it.
This implements the first point of issue #529.
* spot/tl/apcollect.cc, spot/tl/apcollect.hh (collect_litterals): New
function.
* bin/ltlsynt.cc: Implement the --polarity option, use
collect_litterals() to simplify the specification, finally patch the
game, Mealy, or Aiger output.
* spot/twaalgos/aiger.cc, spot/twaalgos/aiger.hh: Take a
relabeling_map has argument to specify extra APs.
* tests/core/ltlsynt.test, tests/core/ltlsynt2.test: Adjust test
cases.
* spot/twaalgos/contains.hh, spot/twaalgos/contains.cc
(containment_select_version): New function.
(contains): Use it.
* spot/twa/twa.cc (exclusive_word): Likewise.
* bin/autfilt.cc (--included-in): Adjust to use forq depending
on containement_select_version.
* bin/man/spot-x.x: Adjust documentation of
CONTAINMENT_SELECT_VERSION.
* tests/core/included.test, tests/python/forq_contains.py: Add more
tests.
* NEWS: Mention the new feature.
Rework the way we compute and use cut-points to catch more patterns we
can rewrite. Also Use BDDs to check if a Boolean sub-expression is
false or true. Fixes issue #540.
* spot/tl/relabel.hh: Update documentation
* spot/tl/relabel.cc (relabel_bse): Rework.
* tests/core/ltlfilt.test: Add more test cases.
* tests/python/_mealy.ipynb: Update.
* NEWS: Mention the change.
Fixes#541, reported by David Dokoupil.
* spot/twaalgos/determinize.cc: Disable use_simulation when the input
has more than 2^16 SCCs.. Also rework the reachability
matrix to store only its lower half triangle.
* spot/twaalgos/determinize.hh, NEWS: Mention the limitation of
use_simulation.
* THANKS: Add David.
Fixes issue #536. Also a part of issue #500.
* spot/twaalgos/translate.hh, spot/twaalgos/translate.cc: Implement
this new option.
* bin/spot-x.cc, NEWS: Mention it.
* tests/core/ltl2tgba2.test: Add the test case from issue #536.
Related to issue #500 and issue #536.
* spot/tl/relabel.hh (relabel_overlapping_bse): New function.
* spot/tl/relabel.cc: Implement it.
* bin/ltlfilt.cc: Add a --relabel-overlapping-bool option.
* tests/core/ltlfilt.test: Test it.
* NEWS: Mention it.
* bin/common_output.cc, bin/common_output.hh,
bin/randltl.cc: Adjust so that running "randltl -S" use
the SERE flavor of the spot/latex/utf8 formula printers.
* tests/core/latex.test, tests/core/utf8.test,
tests/python/ltlparse.py: Add more test cases.
Fixes#534. Test case is only on next branch.
* bin/common_file.hh, bin/common_file.cc: Make it possible
to reopen a closed file.
* bin/common_output.cc, bin/common_aoutput.cc: Add a heuristic
to decide when to close files.
* NEWS: Mention the issue.
* bin/common_output.cc, bin/common_output.hh,
bin/randltl.cc: Adjust so that running "randltl -S" use
the SERE flavor of the spot/latex/utf8 formula printers.
* tests/core/latex.test, tests/core/utf8.test,
tests/python/ltlparse.py: Add more test cases.
