Fixes #269.

* spot/twaalgos/stats.cc: Use twa_statistics instead of
twa_sub_statistics when %t is not used.
* bin/common_aoutput.cc: Likewise, also fix %S to use twa_statistics
instead of num_states(), and document that %s,%t,%e all return
statistics about the reachable part of the automaton.
* tests/core/format.test: Add more tests.
* NEWS: Document the issue.

* NEWS: Mention the modification.
* spot/twaalgos/remfin.cc: Adapt to avoid infinite recursion.
* spot/twaalgos/totgba.cc: Work on Streett-like.
* tests/Makefile.am, tests/python/streett_totgba.py: Tests the
  modification.
* tests/core/remfin.test: Fix one test case that is now handled by
  the modification.

* NEWS: Mention this.
* bin/autfilt.cc: Add option --simplify-acceptance.

Simplify some automata where some marks are identical,
or complementary to another. Fixes #216.

* NEWS: mention the new function.
* spot/twaalgos/cleanacc.cc, spot/twaalgos/cleanacc.hh: Implement
  the function.
* tests/Makefile.am, tests/python/merge.py: Test this implementation.

* tests/sanity/style.test: Allow initializer-lists in ifs.

Alexandre Duret-Lutz authored Apr 07, 2017 and Thomas Medioni committed Jun 08, 2017

also consider sets that appear everywhere

* spot/twaalgos/cleanacc.cc, spot/twaalgos/cleanacc.hh: Here.

Alexandre Duret-Lutz authored Apr 28, 2017 and Thomas Medioni committed Jun 08, 2017

Author: Alexandre Duret-Lutz.

* NEWS: mention the modification.
* spot/twa/acc.cc, spot/twa/acc.hh: Implement the removal.
* spot/twa/twa.hh: Allow directly setting a new acceptance condition.

The libtool version distributed by Debian is patched to *not* propagate
dependencies (i.e., if libA depends on libB, then linking against libA
will not automatically link against libB, it has to be explicit),
contrary to what the Libtool manual document.  So now we explicitly
link against both libA and libB in such case.

* configure.ac: Remove the workaround that does not work for
MinGW.
* doc/org/compile.org: Mention the issue.
* bin/Makefile.am, tests/Makefile.am, spot/ltsmin/Makefile.am,
spot/gen/Makefile.am, doc/org/g++wrap.in: Make the dependencies
explicit.

* tests/core/ikwiad.cc: here.

Henrich Lauko authored May 31, 2017 and Henrich Lauko committed Jun 07, 2017

* spot/twaalgos/remfin.cc: Refactore remove_fin implementation. Enable
filtering of strategies used for fin removing.
* spot/priv/enumflags.hh: Add support for enum flags from brick-types.
* spot/priv/Makefile.am: Add enumflags.hh to make.
* debian/copyright: Update copyright with bricks library license.

* spot/twa/twagraph.cc: Implement the change.
* spot/twaalgos/simulation.hh: Improve documentation.
* tests/python/simstate.py: Improve the test.
* doc/org/concepts.org: Typo.

* tests/core/ltlcross4.test: Replace describe() by agg() to work
around a backward incompatible change in pandas 0.20.

Fixes #262 again.  Reported by Maximilien Colange.

* spot/twaalgos/simulation.cc: Use state numbers to order classes, not
their signatures.  The problem was that even if two simulation of the
same automaton assign the same signature, the BDD identifier used for
that signature might be different, and therefore the ordering obtained
by using BDDs as keys in a map can be different.  A side-effect of
this change is that the order of states in automata produced by
simulation-based reduction may change; many tests had to be updated.
* tests/core/ltl2tgba.test: Add a new test case based on Maximilien's
report.
* tests/core/complement.test, tests/core/det.test,
tests/core/parseaut.test, tests/core/prodor.test, tests/core/scc.test,
tests/python/atva16-fig2a.ipynb, tests/python/automata.ipynb,
tests/python/decompose.ipynb, tests/python/decompose_scc.py,
tests/python/highlighting.ipynb, tests/python/piperead.ipynb,
tests/python/sccinfo.py, tests/python/simstate.py,
tests/python/testingaut.ipynb, tests/python/word.ipynb: Update
test case for new order of states.

* tests/sanity/getenv.test: New file.
* tests/Makefile.am: Add it.
* bin/man/spot-x.x: Document SPOT_STUTTER_CHECK and SPOT_DEBUG_PARSER.

* tests/sanity/namedprop.test: New file.
* tests/Makefile.am: Add it.
* doc/org/concepts.org: Add documentation for degen-levels and
simulated-states.

Related to #208.

* spot/twaalgos/dot.cc: Fix missing definitions of universal nodes,
and inclusion of universal nodes inside of SCC when none of the
destination comes back to the SCC.
* tests/python/_altscc.ipynb: Adjust and add more test cases.
* tests/core/alternating.test, tests/core/neverclaimread.test,
tests/core/readsave.test, tests/core/sccdot.test,
tests/python/decompose.ipynb: Adjust test cases.
* NEWS: Mention the bug.

* spot/twaalgos/sccinfo.hh, spot/twaalgos/sccinfo.cc: Do it.
* tests/core/sccdot.test: Add a test case.
* NEWS: Mention it.

* spot/twa/acc.cc, spot/twa/acc.hh: Implement the new method, and
use it to implement inf_accepting().
* tests/python/accparse2.py: Add some tests.

* NEWS: Document this.
* spot/twa/twagraph.cc: `copy_state_names_from` handles this new info.
* spot/twaalgos/degen.hh, spot/twaalgos/degen.cc: Implement it.
* tests/python/origstate.py, tests/python/simstate.py: Update tests to
  reflect the change.

* NEWS: Document the change.
* spot/twaalgos/simulation.cc: Implement the change.
* spot/twa/twagraph.cc: `copy_state_names_from` uses simulated states
  info if present.
* spot/twaalgos/determinize.cc: Pretty-print in determinization follows
  simulated states, avoiding possible confusion.
* tests/Makefile.am, tests/python/simstate.py: Add a test.

* spot/twaalgos/remfin.cc (is_scc_ba_type): Replace the call
to mask_keep_states by the use of an scc_info filter.

* spot/twaalgos/sccinfo.hh, spot/twaalgos/sccinfo.cc: Take
a filter function as optional argument.
* tests/core/sccif.cc, tests/core/sccif.test: New files.
* tests/Makefile.am, tests/core/.gitignore: Adjust.
* NEWS: Mention the new feature.

co-Büchi is now recognized as Streett-like, Büchi as Rabin-like.
Also recognized Inf & Inf & Inf... as Streett-like and
Fin | Fin | Fin... as Rabin-like.

* spot/twa/acc.cc: Fix the bug
* tests/python/rs_like.py: Add some test case

Fixes #262, reported by Maximilien Colange.

* bin/common_output.cc, bin/common_aoutput.cc, bin/common_aoutput.hh:
Clear the set of atomic propositions if --stats=%[...]x was used.
* spot/twa/bdddict.cc: Release any formula associated to a BDD when it
is unregistered, do not wait for the dictionary's destruction.  This
was the main culprit for #262.
* tests/core/ltl2tgba.test: Add test cases.
* NEWS: Mention the bug.

Maximilien Colange authored May 11, 2017 and Alexandre Duret-Lutz committed May 11, 2017

* spot/twaalgos/sccinfo.hh: initialize t_, and remove useless data from
  class scc_edges.

* NEWS, configure.ac, doc/org/setup.org: Update version to 2.3.4.

* spot/parseaut/parseaut.yy: Remove extra ;.
* spot/parseaut/scanaut.ll: Use nullptr instead of 0.

* spot/parseaut/parseaut.yy: Remove extra ;.
* spot/parseaut/scanaut.ll: Use nullptr instead of 0.

The cache used in formula simplification will keep atomic propositions
defined between several translations, and may impact variable order.
Reported by Maximilien Colange.

* spot/tl/simplify.hh, spot/tl/simplify.cc,
spot/twaalgos/translate.cc, spot/twaalgos/translate.hh (clear_cache):
New method.
* bin/ltl2tgba.cc, bin/ltl2tgta.cc: Call it.
* spot/twaalgos/stats.cc: Do not keep a point to the formula after
printing statistics.
* tests/core/ltl2tgba.test: Add a test case.
* tests/core/readsave.test: Adjust one formula.
* NEWS: Mention the issue.

The cache used in formula simplification will keep atomic propositions
defined between several translations, and may impact variable order.
Reported by Maximilien Colange.

* spot/tl/simplify.hh, spot/tl/simplify.cc,
spot/twaalgos/translate.cc, spot/twaalgos/translate.hh (clear_cache):
New method.
* bin/ltl2tgba.cc, bin/ltl2tgta.cc: Call it.
* spot/twaalgos/stats.cc: Do not keep a point to the formula after
printing statistics.
* tests/core/ltl2tgba.test: Add a test case.
* tests/core/readsave.test: Adjust one formula.
* NEWS: Mention the issue.

This is motivated by some upcoming patch by Heňo.

* spot/twaalgos/sccinfo.hh (edges_of, inner_edges_of): New methods.
* spot/twaalgos/sccinfo.cc, spot/twaalgos/strength.cc: Use them.
* spot/twa/twagraph.hh (edge_number): Add an overload.
* python/spot/impl.i: Bind the new methods.
* tests/python/sccinfo.py: Add tests.
* NEWS: Mention the changes.

* doc/org/ltlfilt.org: A the list of transformation option.
Suggested by Yann Thierry-Mieg.

* doc/org/ltlfilt.org: A the list of transformation option.
Suggested by Yann Thierry-Mieg.

Fixes #260.  Reported by František Blahoudek.

The simplification F(f)|q = F(f|q), where q designates an event_univ
formula, was not always applied because of a couple of issue: (1) the
mospliter was ignoring event_univ unless favor_event_univ was set, (2)
when processing formulas from res_EventUniv they were not put back
into res_F or res_G to be subject to the F/G rules.

* spot/tl/simplify.cc: Improve handling of the above points.
* tests/core/reduccmp.test: Adjust and add test case.
* tests/core/ltl2tgba2.test, tests/python/atva16-fig2a.ipynb: Adjust.

Fixes #260.  Reported by František Blahoudek.

The simplification F(f)|q = F(f|q), where q designates an event_univ
formula, was not always applied because of a couple of issue: (1) the
mospliter was ignoring event_univ unless favor_event_univ was set, (2)
when processing formulas from res_EventUniv they were not put back
into res_F or res_G to be subject to the F/G rules.

* spot/tl/simplify.cc: Improve handling of the above points.
* tests/core/reduccmp.test: Adjust and add test case.
* tests/core/ltl2tgba2.test, tests/python/atva16-fig2a.ipynb: Adjust.

* debian/rules (override_dh_installchangelogs): New rule.