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Adding tgba-based stutter-invariance checking

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* src/tgbaalgos/closure.cc, src/tgbaalgos/closure.hh:
Add closure function.
* src/tgbaalgos/stutterize.cc, src/tgbaalgos/stutterize.hh:
Add two implementations of "self-loopize" function.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgba/tgbasl.cc, src/tgba/tgbasl.hh: On-the-fly implementation of
self-loopize.
* src/tgba/Makefile.am: Add it.
* src/tgbatest/ltl2tgba.cc, src/tgbatest/stutter_invariant.test: Test
closure and sl.
* src/tgbatest/Makefile.am: Adjust.
* src/bin/ltlfilt.cc: Modify stutter-invariant option to use
automaton-based checking rather than syntactic-based checking.
* src/ltlvisit/remove_x.cc, src/ltlvisit/remove_x.hh:
Remove is_stutter_insensitive function.
* src/tgbaalgos/stutter_invariance.cc,
src/tgbaalgos/stutter_invariance.hh: Check if a formula is
stutter-invariant using closure and sl.
* wrap/python/spot.i: Add closure and sl bindings.
* bench/stutter/stutter_invariance_formulas.cc: Generate benchmarks from
given formulas.
* bench/stutter/stutter_invariance_randomgraph.cc: Generate benchmarks
from random automata.
* bench/stutter/Makefile.am: Add them.
* configure.ac: Add bench/stutter/Makefile.
* bench/Makefile.am: Add stutter subdirectory.
* README: Document bench/stutter directory.
This commit is contained in:
Thibaud Michaud 2014-10-01 12:58:16 +02:00 • committed by Alexandre Duret-Lutz
parent beafcf4e3d
commit 37bcb5d959
23 changed files with 1159 additions and 42 deletions
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6
src/bin/ltlfilt.cc
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@ -45,6 +45,7 @@
#include "tgbaalgos/ltl2tgba_fm.hh"
#include "tgbaalgos/minimize.hh"
#include "tgbaalgos/safety.hh"
#include "tgbaalgos/stutter_invariance.hh"
const char argp_program_doc[] ="\
Read a list of formulas and output them back after some optional processing.\v\
@ -550,8 +551,7 @@ namespace
matched &= !implied_by || simpl.implication(implied_by, f);
matched &= !imply || simpl.implication(f, imply);
matched &= !equivalent_to || simpl.are_equivalent(f, equivalent_to);
matched &= !stutter_insensitive || (f->is_ltl_formula()
&& is_stutter_insensitive(f));
matched &= !stutter_insensitive || spot::is_stutter_invariant(f);
// Match obligations and subclasses using WDBA minimization.
// Because this is costly, we compute it later, so that we don't
@ -609,8 +609,6 @@ main(int argc, char** argv)
if (jobs.empty())
jobs.emplace_back("-", 1);
// --stutter-insensitive implies --ltl
ltl |= stutter_insensitive;
if (boolean_to_isop && simplification_level == 0)
simplification_level = 1;
spot::ltl::ltl_simplifier_options opt = simplifier_options();