Commit graph

842 commits

Author SHA1 Message Date
Alexandre Duret-Lutz
d94efe9fe1 implement is_liveness() and is_liveness_automaton()
* spot/twaalgos/strength.cc, spot/twaalgos/strength.hh,
spot/tl/hierarchy.cc, spot/tl/hierarchy.hh: Here.
* bin/ltlfilt.cc (--liveness): New filter.
* NEWS: Mention those.
* tests/core/ltlfilt.test, tests/python/ltlsimple.py: Add test cases.
2018-10-15 21:37:31 +02:00
Alexandre Duret-Lutz
d2316b1428 fix ltlfilt --accept-word and --reject-word
* NEWS: Mention the issue.
* bin/ltlfilt.cc: Fix test.
* tests/core/acc_word.test: Test this.
2018-10-15 21:17:18 +02:00
Alexandre Duret-Lutz
58c1a968c7 option --low should disable gf-guarantee
Fixes #367.

* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh: Fix it.
* NEWS: Mention the change.
* tests/core/ltl2tgba2.test: Test this.
2018-10-12 14:08:54 +02:00
Alexandre Duret-Lutz
3c86f034fc Büchi translation should not go through fg_safety_to_dca_maybe()
Fixes #366, reported by Simon Jantsch.

* spot/twaalgos/translate.cc: type_&Generic will also match if
type_==BA... use type_==Generic instead.
* tests/core/unambig.test: Add a test corresponding to Simon's report.
* NEWS: Describe the bug.
2018-10-12 14:08:54 +02:00
Alexandre Duret-Lutz
e5f76b77d4 solve build issue on Debian unstable i386
* tests/python/_product_weak.ipynb: Split large loop in two cells.
2018-10-08 16:03:17 +02:00
Alexandre Duret-Lutz
82a152c38a unabbreviate: add new rules based on eventual/universal arguments
Based on a report by Simon Jantsch.  Fixes #362.

* NEWS, doc/tl/tl.tex: Mention the new rules.
* spot/tl/unabbrev.cc: Implement them.
* tests/core/unabbrevwm.test: Test them.
* tests/python/randltl.ipynb: Adjust.
2018-10-01 17:53:05 +02:00
Alexandre Duret-Lutz
eae05119e5 exclusive_ap::constrain does not improve determism
Fixes #363.

* spot/tl/exclusive.cc: Fix the prop_copy() call.
* tests/core/exclusive-tgba.test: Test it.
* NEWS: Mention the issue.
2018-09-26 11:35:19 +02:00
Alexandre Duret-Lutz
250e121a60 print_dot: add xlabel to colored states if too many colors in use
Based on a report from Andreas Tollkötter.

* spot/twaalgos/dot.cc (highlight_states_show_num_): New option,
turned on implicitly when more than 8 colors are used.
* tests/core/highlightstate.test: Test it.
* NEWS: Mention it.
* THANKS: Add Andreas.
2018-09-25 14:04:11 +02:00
Alexandre Duret-Lutz
389ef16b1b gcc-snapshot warnings
* spot/kripke/kripkegraph.hh, spot/priv/bddalloc.hh,
spot/priv/freelist.hh, spot/priv/satcommon.hh, spot/ta/taexplicit.cc
spot/twa/bdddict.cc, spot/twa/twagraph.hh,
spot/twaalgos/alternation.hh, spot/twaalgos/dtwasat.cc,
spot/twaalgos/ltl2taa.cc, spot/twaalgos/stutter.cc,
tests/core/ngraph.cc: Add default constructors, copy constructors, or
remove useless destructors.
2018-08-11 17:33:53 +02:00
Alexandre Duret-Lutz
8a26744720 fix python bindings for spot::parsed_formula::f getter
* python/spot/impl.i: Add a typemap.
* tests/python/ltlsimple.py: Add a test case for an issue.
* NEWS: Mention the bug.
2018-08-02 23:05:22 +02:00
Alexandre Duret-Lutz
23722c031f contains: fix the semantics
spot::contains(a, b) should test a⊇b.  It was testing a⊆b instead.

* NEWS: Mention the bug.
* spot/twaalgos/contains.cc, spot/twaalgos/contains.hh: Fix the
code and documentation.
* tests/python/contains.ipynb: Adjust description and expected
results.
* python/spot/__init__.py: Also swap the argument of
language_containment_checker.contains()
* bin/autfilt.cc: Adjust usage.
2018-08-01 17:17:25 +02:00
Alexandre Duret-Lutz
4ce0d92896 tl: add some implication-based rewritings for "<->", "->", and "xor"
This prevents an exception from being raised if NNF is not performed
on Boolean properties and implication-based checks are used.

* NEWS: Mention the issue.
* spot/tl/simplify.cc, doc/tl/tl.tex: Add some rules.
* tests/python/ltlsimple.py: Test them.
2018-08-01 17:17:09 +02:00
Maximilien Colange
8d5d453efa ltlsynt: new algorithm, based on LAR
* bin/ltlsynt.cc: here
* tests/core/ltlsynt.test: test it
* NEWS: document it
2018-07-27 15:34:39 +02:00
Maximilien Colange
bd75ab5b39 ltlsynt: rework synthesis algorithms
ltlsynt now offers two algorithms: one where splitting occurs before
determinization (the historical one) and one where determinization
occurs before splitting.

* bin/ltlsynt.cc: here
* tests/core/ltlsynt.test: test it and refactor test file
* NEWS: document it
* spot/misc/game.hh, spot/misc/game.cc: remove Calude's algorithm
2018-07-27 14:22:11 +02:00
Maximilien Colange
516e9536df LAR made smarter with symmetry-based degeneralization
* spot/twaalgos/toparity.cc: here
* spot/twa/acc.hh, spot/twa/acc.cc: compute symmetries of an acceptance
  condition
* tests/python/accparse2.py, tests/python/toparity.py: test it
2018-07-27 00:44:19 +02:00
Alexandre Duret-Lutz
3303b86a89 ltl-split: translate any "safety" with "rest"
* tests/core/ltl2tgba2.test: Add a test-case reported by Maximilien.
* spot/twaalgos/translate.cc: Translate any "safety" formula with
"rest".
* tests/python/highlighting.ipynb: Adjust.
2018-07-26 18:17:13 +02:00
Alexandre Duret-Lutz
469d2b4ef4 genem: fix removal of unsatisfied Fin(x) sets
Fixes #360.

* spot/twa/acc.cc, spot/twa/acc.hh (force_inf): New method.
* spot/twaalgos/genem.cc: Fix the emptiness check using force_inf.
* tests/python/genem.py: Add test case and adjust the python
version of the emptiness check.
2018-07-26 16:07:30 +02:00
Alexandre Duret-Lutz
9f81df2cd4 scc_info: fix split_on_sets
* spot/twaalgos/sccinfo.cc (split_on_sets): Correctly register APs.
* tests/python/sccsplit.py: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention the bug.
2018-07-26 16:07:22 +02:00
Alexandre Duret-Lutz
4b8910d3f9 ltlfilt: introduce --suspendable
* bin/ltlfilt.cc: Add the option.
* tests/core/ltlfilt.test: Use it.
* NEWS: Mention it.
2018-07-25 11:18:26 +02:00
Maximilien Colange
465536d1fe translate any automaton to a parity automaton
* spot/twaalgos/toparity.cc, spot/twaalgos/toparity.hh: implement it,
  based on last-appearance record (LAR)
* spot/twaalgos/Makefile.am: build it
* NEWS: document it
* python/spot/impl.i: add to python bindings
* tests/Makefile.am, tests/python/toparity.py: test it
2018-07-24 14:58:53 +02:00
Alexandre Duret-Lutz
d708174cfe genem: implement a generic emptiness check for twa_graph_ptr
* spot/twa/acc.cc, spot/twa/acc.hh (fin_unit, one_fin): New function.
* spot/twaalgos/genem.cc, spot/twaalgos/genem.hh: New files.
* spot/twaalgos/Makefile.am: Add it.
* tests/python/genem.py: New file.
* tests/Makefile.am: Add it.
* python/spot/impl.i: Add bindings for genem.hh.
* NEWS: Mention the new function.
2018-07-24 13:36:04 +02:00
Alexandre Duret-Lutz
6875284f94 fix two issues related to jupyter notebook execution
* tests/python/ipnbdoctest.py: Invert diffs inputs.
* tests/run.in: Run notebooks with
PYTHONIOENCODING=utf-8:surrogateescape to avoid exceptions when trying
to display utf-8 characters on ascii terminals.
2018-07-12 17:18:22 +02:00
Alexandre Duret-Lutz
46590af693 more documentation for twa_graph internals
* spot/graph/graph.hh, spot/twa/twagraph.hh, spot/twa/twagraph.cc:
Implement a dump_storage_as_dot() method.
* python/spot/__init__.py (twa_graph.show_storage): New method, above
dump_storage_as_dot().
* tests/python/twagraph-internals.ipynb: New file, with documentation
about the twa_graph internals, using show_storage() to illustrate
everything.
* tests/Makefile.am, doc/org/tut.org: Add it.
* python/spot/impl.i: Add bindings for out_iterasor, demonstrated in
the Python notebook.
* spot/twa/twa.hh: Add prop_reset().  Used in the notebook.
* NEWS: Mention the new notebook and function.
* doc/org/tut50.org: Link to the notebook.
* tests/python/ipnbdoctest.py: Adjust for twa_graph_ptr being
redefined in the spot namespace.
2018-07-12 15:23:23 +02:00
Alexandre Duret-Lutz
e7aa334a71 tl: add support for X[n], F[n:m] and G[n:m]
* NEWS, doc/tl/tl.tex, doc/tl/tl.bib: Document these new operators.
* spot/parsetl/parsetl.yy, spot/parsetl/scantl.ll: Parse those.
* spot/tl/formula.cc, spot/tl/formula.hh: Add constructors.
* spot/gen/formulas.cc: Use it.
* tests/core/sugar.test: New file.
* tests/Makefile.am: Add it.
2018-07-06 21:53:10 +02:00
Alexandre Duret-Lutz
0411099506 trival: prefer a global operator== relying on implicit conversion
Hopefully fixes #359.

* spot/misc/trival.hh: Declare a global operator==(trival,trival) that
replace the specialized operator==(bool,trival), and the in class
trival::operator(trival), thanks to the implicit construction from
bool to trival.  Make the repr_t/value_t constructor explicit, are
those are mostly internal to the library and may cause conflicts.
* spot/twa/twa.hh: Adjust to construct trival explicitly.
* python/spot/impl.i: Since Swig/Python does not support global
comparison operators, implement a member version, supporting
only __eq__(trival,bool) as before.
* tests/python/setacc.py: Adjust erroneous code.
* tests/python/trival.py: Add test cases.
2018-07-04 16:00:00 +02:00
43d426aaae complement: improve code coverage
* spot/twaalgos/complement.cc: removed unused code
* tests/python/except.py: test for exception raised
2018-07-02 18:36:56 +02:00
c717b58827 implement NCSB complementation
* spot/twaalgos/isdet.cc,spot/twaalgos/isdet.hh: Two new functions to
highlight deterministic SCCs
* spot/twaalgos/complement.cc,spot/twaalgos/complement.hh:
Implementation of the NCSB complementation algorithm
* tests/Makefile.am, tests/python/complement_semidet.py: Test the
implementation
* NEWS: document function
2018-07-02 14:32:57 +02:00
Alexandre Duret-Lutz
e48c6c40d0 ltl-split: deal with suspendable formulas that are false
Fixes #358.

* spot/twaalgos/translate.cc: Fix the assert().
* tests/core/ltl2tgba2.test: Add a test case.
2018-06-30 20:39:30 +02:00
Alexandre Duret-Lutz
c1b7497f84 gfguarantee: fix selection of moved init state
Fixes #357.

* spot/twaalgos/gfguarantee.cc: Decide that a moved init state is to
close from the terminal state *before* actually modifying the
automaton.
* tests/core/ltl2tgba2.test: Add a test.
2018-06-30 16:44:59 +02:00
Alexandre Duret-Lutz
4e8b35d7ca twa: introduce exclusive_word() and exclusive_run()
* spot/twa/twa.cc, spot/twa/twa.hh: Add these methods.
* NEWS, tests/python/contains.ipynb: Document them.
2018-06-29 21:55:21 +02:00
Alexandre Duret-Lutz
f5f5daec9a translate: enable a restricted form of ltl-split for TGBA/BA
Fixes #267

* spot/twaalgos/gfguarantee.cc: Fix a typo when comparing automata
sizes.
* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh: Use
ltl-split even for BA/TGBA, but only of conjunctions with GF(..)
in those cases.
* tests/core/ltl2tgba2.test: Adjust and add the example of #267.
* tests/core/degenid.test, tests/core/parity2.test,
tests/core/stutter-tgba.test, tests/python/automata.ipynb,
tests/python/highlighting.ipynb, tests/python/stutter-inv.ipynb,
bin/spot-x.cc: Adjust.
2018-06-28 23:02:26 +02:00
Alexandre Duret-Lutz
0a8c6479b7 translate: extract obligations terms when translating LTL to Parity
* spot/twaalgos/translate.cc: Here.
* NEWS: Mention the change.
* tests/core/genltl.test: Add parity automata sizes for a set of
formulas.
* tests/core/parity2.test: Add another formula to the tests.
2018-06-25 20:40:29 +02:00
Alexandre Duret-Lutz
a325de8678 postproc: simplify the acceptance condition
* spot/twaalgos/postproc.cc: Here.
* spot/twaalgos/cobuchi.cc, spot/twaalgos/totgba.cc: Fix some bug
uncovered by the new simplified automata.
* tests/core/satmin2.test, tests/core/sccdot.test,
tests/core/sim3.test, tests/python/decompose.ipynb,
tests/python/satmin.ipynb: Update expected results.
* NEWS: Mention the simplification and the bug.
2018-06-22 17:17:45 +02:00
Alexandre Duret-Lutz
621fb818e3 improve translation of ms-phi-h=2..3
* spot/twaalgos/gfguarantee.cc: Rework the history computation to keep
an overapproximation of the history, and a longer one.  Also replay
the history even if there is no initial trivial SCC.  This helps with
translating FG(!a|XXXb) where we need to keep the history of a, but we
were previously unable to do so because some state had both "a" and
"ab" as input.
* spot/twaalgos/translate.cc: Optimize the product of suspendable
automata by removing useless trivial SCCs.
* tests/core/genltl.test, tests/core/satmin.test, NEWS: Adjust
expected results.
2018-06-21 10:02:13 +02:00
Maximilien Colange
c9131aee72 add a pool allocator for STL containers
* spot/priv/allocator.hh, spot/priv/Makefile.am: add a STL-compliant
  allocator based on spot::fixed_size_pool
* spot/misc/fixpool.hh, spot/misc/fixpool.cc, spot/misc/Makefile.am:
  refactor the existing spot::fixed_size_pool
* spot/ltsmin/ltsmin.cc, spot/twa/twaproduct.cc: reflect changes in the
  interface of spot::fixed_size_pool
* tests/core/mempool.cc: test the new allocator
2018-06-20 14:26:45 +02:00
Maximilien Colange
3fe74f1cb9 make valgrind understand our memory pools
Annotate pools with valgrind macros so that it detects errors in pool
usage. Typically, we wish valgrind to detect a leak when the user fails
to call proper deallocation function.

* spot/misc/fixpool.hh, spot/misc/mspool.hh: here
* configure.ac: ensure that valgrind header exists
* tests/Makefile.am, tests/core/mempool.cc, tests/core/mempool.test,
  tests/core/.gitignore: add tests to ensure valgrind accurately detects
  leaks
2018-06-20 14:26:31 +02:00
Alexandre Duret-Lutz
4815a361de translate: add ltl-split option
* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh: Build
automata with generic acceptance by doing product of automata for
smaller subformulas.
* bin/spot-x.cc: Mention ltl-split.
* NEWS: Mention the change, and show some results.
* tests/core/genltl.test, tests/python/_product_susp.ipynb,
tests/python/highlighting.ipynb: Adjust test cases.
* doc/org/ltl2tgba.org: Update.
* tests/core/gragsa.test: Add another formula to cover more
code.
2018-06-20 11:38:59 +02:00
Alexandre Duret-Lutz
4f2e9512a2 product_susp: new function
* spot/twaalgos/product.cc, spot/twaalgos/product.hh: Implement it.
* tests/python/_product_susp.ipynb: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention it.
2018-06-20 11:38:59 +02:00
Maximilien Colange
1183a935c7 fix a bug in aiger printer
* spot/twaalgos/aiger.cc: here
* tests/core/ltlsynt.test: add a non-regression test
2018-06-15 11:08:27 +02:00
Alexandre Duret-Lutz
fbc372e292 scc_filter: add quick test for very-weak
Related to issue #351.

* spot/twaalgos/sccfilter.cc: When handling weak automata, we know
they are very-weak if the SCC count is equal to the number of states.
* tests/core/dca2.test, tests/core/monitor.test,
tests/core/parity2.test, tests/core/randomize.test,
tests/core/readsave.test, tests/core/remfin.test,
tests/core/sccsimpl.test, tests/core/wdba2.test,
tests/python/dualize.py, tests/python/remfin.py: Adjust output.
2018-06-11 21:42:21 +02:00
Alexandre Duret-Lutz
95d732e331 specialize scc_filter for inherently_weak automata
Part of issue #351.

* spot/twaalgos/sccfilter.cc, spot/twaalgos/sccfilter.hh: Specialize
for inherently-weak automata.
* spot/twaalgos/postproc.cc: Simplify.
* tests/core/dca2.test, tests/core/parity2.test,
tests/core/prodor.test, tests/core/randomize.test,
tests/python/automata.ipynb, tests/python/highlighting.ipynb,
tests/python/product.ipynb, tests/python/remfin.py,
tests/python/stutter-inv.ipynb: Adjust.
* NEWS: Mention it.
2018-06-11 15:01:49 +02:00
Alexandre Duret-Lutz
1341c656be genltl: add --gf-equiv-xn, --gf-implies-xn
* spot/gen/formulas.cc, spot/gen/formulas.hh: Here.
* bin/genltl.cc: Add options.
* tests/core/genltl.test: Test them.
* NEWS: Mention them.
2018-06-08 15:51:11 +02:00
Alexandre Duret-Lutz
7e9325866f gf_guarantee_to_ba: save states using histories
This improves gf_guarantee_to_ba() on formulas GF(φ) where the
automaton for F(φ) as several leading transiant SCCs.  E.g.,
GF(a <-> XXXa) where we know get results that are as good as
those of delag without loosing on the cases where delag's technique
would actually produce two big automata.

* spot/twaalgos/gfguarantee.cc: Implement this.
* spot/twaalgos/gfguarantee.hh, NEWS: Document it.
* tests/core/ltl2tgba2.test, tests/core/ltl3ba.test: Add test cases.
2018-06-08 15:32:52 +02:00
Alexandre Duret-Lutz
ca1c67a73d simplifier: add two new rules
Fixes #354.

* spot/tl/simplify.cc: Implement the rules.
* doc/tl/tl.tex, NEWS: Document them.
* tests/core/reduccmp.test: Add tests.
* tests/core/det.test, tests/core/satmin.test: Adjust.
2018-06-05 08:48:40 +02:00
Alexandre Duret-Lutz
c535871ffd genltl: --ms-example now has two arguments
* bin/genltl.cc, spot/gen/formulas.cc, tests/core/genltl.test: Adjust.
* NEWS: Mention it.
2018-06-05 08:48:40 +02:00
Alexandre Duret-Lutz
2e50f9e986 autfilt: implement --has-univ-branching and --has-exist-branching
Fixes #352.

* bin/autfilt.cc: Add the options.
* tests/core/alternating.test: Test them.
* NEWS: Mention them.
2018-06-05 08:48:40 +02:00
Alexandre Duret-Lutz
939f63eec9 genltl: add support for --sejk-f=n,m
Together with the previous patch, this Fixes #353.

Implementing this required to extend our interface two support
two-parameter patterns.

* spot/gen/formulas.cc, spot/gen/formulas.hh: Implement it.
* bin/genltl.cc: Add --sejk-f.
* bin/common_output.cc, bin/common_output.hh: Adjust to handle
"line numbers" that are not integers (e.g., "3,2"), since those
are used to display pattern parameters.
* bin/ltlfilt.cc: Adjust.
* python/spot/gen.i: Add support for two-parameters patterns.
* tests/core/genltl.test, tests/python/gen.ipynb: Augment.
* NEWS: Mention it.
2018-06-05 08:48:40 +02:00
Alexandre Duret-Lutz
c76df95c69 genltl: three new families --sejk-{j,k,patterns}
These correspond to the first three blocks of table 1 in S. Sickert,
J. Esparza, S. Jaax, and J. Křetínský: Limit-Deterministic Büchi
Automata for Linear Temporal Logic.  CAV'16.  LNCS 9780.

For #353.

* spot/gen/formulas.cc, spot/gen/formulas.hh, bin/genltl.cc: Implement
the new families.
* tests/core/genltl.test: Test it.
* bin/man/genltl.x, NEWS: Document it.
2018-06-03 20:20:59 +02:00
Alexandre Duret-Lutz
e87d308eba improve alternation removal to match G&O construction
When dealternating the VWAA for GFa, our result had two states that
could not be fused by simulation because of unmatched acceptance mark.
With this change, the result can be simplified.

* spot/twaalgos/alternation.cc: Here.
* tests/core/alternating.test, tests/python/alternation.ipynb: Update
test case.
* NEWS: Mention it.
2018-06-01 10:59:37 +02:00
Alexandre Duret-Lutz
6d9d35c985 acc: turn some assertions into exceptions
* spot/misc/bitset.cc, spot/misc/bitset.hh (set, clear):
Turn asserts into exceptions.
* spot/twa/acc.hh (mark_t): As a consequence, the
constructor is not noexcept anymore.
* tests/core/acc.cc, tests/python/except.py: More tests.
2018-05-26 09:44:18 +02:00