* src/hoaparse/hoaparse.yy: Improve error recovery,
and fix location tracking in streams.
* src/hoaparse/public.hh: Store the last location so
that the next parse start at the correct position.
* src/bin/autfilt.cc: Stop parsing a stream on irrecoverable errors.
* src/tgbatest/hoaparse.test: Adjust tests.
* src/tgbatest/monitor.test: New file.
* src/tgbatest/Makefile.am: Add it.
* src/tgbaalgos/minimize.cc (minimize_monitor): Mark
the output automaton as state-based.
* src/tgba/tgbagraph.hh: Assume automata with 0 acceptance sets are also
state-based.
* src/ltltest/ltlfilt.test: Add more tests.
* src/ltltest/stutter.test: New test.
* src/ltltest/Makefile.am: Adjust.
* src/bin/ltlfilt.cc: Catch std::runtime_error.
* src/tgba/tgbasl.hh (make_tgbasl): New function.
* src/tgba/tgbagraph.hh (make_tgba_graph): Add another overload.
* src/tgbaalgos/stutter_invariance.cc,
src/tgbaalgos/stutter_invariance.hh: Take the algorithm version as an
optional integer, and call getenv() only once.
* bench/stutter/stutter_invariance_randomgraph.cc,
bench/stutter/stutter_invariance_formulas.cc: Simplify using the
above functions.
* src/tgbaalgos/closure.cc, src/tgbaalgos/closure.hh: Using vectors
instead of sets and unordered maps, adding an overload to handle rvalue
references.
* src/tgbaalgos/stutterize.cc, src/tgbaalgos/stutterize.hh: Adding
an overload to handle rvalue references.
* bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/stutter_invariance_randomgraph.cc: Automata are modified
in-place by is_stutter_invariant so they have to be copied before being
processed.
* src/tgbaalgos/stutter_invariance.cc,
src/tgbaalgos/stutter_invariance.hh: Use the in-place version of
closure and sl.
* 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.
* src/tgbaalgos/randomgraph.cc, src/tgbaalgos/randomgraph.hh:
Add option to generate a complete deterministic automaton.
* src/tgbatest/randtgba.cc: Test it.
The ltl_to_tgba_fm() translation function was using a hash_map of
maps (ugh!) to merge transitions on output. However recent libstd++
changed the implementation of hash_map (a.k.a. unordered_map) causing
transitions to be output in a different order. This
implementation-dependent order caused the ltl2ta.test to fail because
the BA->TA transformation can produce TA of different sizes if you
simply change the order of transitions in the input BA! This does not
sound like a nice property for the BA->TA transformation, but Ala Eddine
isn't sure how to fix it yet. In the meantime, this patch makes sure
ltl_to_tgba_fm() will return the same output regardless of the
implementation of hash_map.
The ltl2ta.test failure has been observed with g++ 4.9.2 on Arch Linux,
and with gcc-snapshot (5.0.0 20141016) on Debian.
* src/tgbaalgos/ltl2tgba_fm.cc: Rewrite the transition merging
using a std::vector and std::sort instead of nested maps tables.
* src/tgbatest/ltl2ta.test: Adjust sizes to the new order.
* NEWS: Mention the fix.
The ltl_to_tgba_fm() translation function was using a hash_map of
maps (ugh!) to merge transitions on output. However recent libstd++
changed the implementation of hash_map (a.k.a. unordered_map) causing
transitions to be output in a different order. This
implementation-dependent order caused the ltl2ta.test to fail because
the BA->TA transformation can produce TA of different sizes if you
simply change the order of transitions in the input BA! This does not
sound like a nice property for the BA->TA transformation, but Ala Eddine
isn't sure how to fix it yet. In the meantime, this patch makes sure
ltl_to_tgba_fm() will return the same output regardless of the
implementation of hash_map.
The ltl2ta.test failure has been observed with g++ 4.9.2 on Arch Linux,
and with gcc-snapshot (5.0.0 20141016) on Debian.
* src/tgbaalgos/ltl2tgba_fm.cc: Rewrite the transition merging
using a std::vector and std::sort instead of nested maps tables.
* NEWS: Mention the fix.
* src/tgba/tgbasafracomplement.cc: Here. Beside being more efficient,
the use of std::swap instead of an assignment also protects us from a
bug recently introduced in the development version of G++.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63698
* src/tgba/tgbasafracomplement.cc: Here. Beside being more efficient,
the use of std::swap instead of an assignment also protects us from a
bug recently introduced in the development version of G++.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63698
* src/tgba/tgbagraph.hh, src/tgba/tgbagraph.cc: Add a copy constructor,
and some method to purge unreachable states.
* src/graph/graph.hh (defrag_states): Erase transition of removed
states.
* src/tgbaalgos/complete.cc, src/tgbaalgos/compsusp.cc,
src/tgbaalgos/dtgbacomp.cc, src/tgbaalgos/simulation.cc,
src/tgbatest/checkpsl.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2tgba.cc: Adjust to use make_tgba_digraph() instead
of tgba_dupexp_dfs() or tgba_dupexp_bfs().
* src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh: Use
make_tgba_digraph() when possible.
* src/tgbatest/det.test, src/tgbatest/sim.test: Adjust expected results.
The double result is never used with a triple keys,
so we can pack the cache entry more tightly.
* src/cache.h: Reorganize the cache entry the structure.
* src/cache.c: Cleanup the code while we are at it.
* src/bddop.c: Adjust to accesses to cache entries.
* src/ltlast/formula.hh: Specialize std::hash<>.
* src/ltlvisit/contain.hh, src/ltlvisit/relabel.cc,
src/tgba/taatgba.hh, src/tgbaalgos/ltl2tgba_fm.cc: Do
not pass formula_ptr_hash to unordered_map.
Since we are now using std::chrono from C++11.
* lib/gethrxtime.c, lib/gethrxtime.h, lib/gettime.c, lib/timespec.c,
lib/timespec.h, lib/xtime.c, lib/xtime.h, m4/clock_time.m4,
m4/gethrxtime.m4, m4/gettime.m4, m4/timespec.m4: Delete these files.
* lib/Makefile.am, m4/gnulib-cache.m4, m4/gnulib-comp.m4: Adjust.
* src/misc/timer.hh (stopwatch): New class, implemented on top
of C++11's std::chrono::high_resolution_clock.
* src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc, src/bin/ltlcross.cc:
Use it in lieu of gethrxtime(), so we do not need to distribute
gethrxtime anymore.
Instead, manage all reference counting from ltl::formula.
It ridance of virtual calls to clone() and destroy() easily compensate
the extra test in destroy() to not delete constant nodes.
* src/ltlast/refformula.cc, src/ltlast/refformula.hh: Delete.
* src/ltlast/Makefile.am, wrap/python/spot.i: Adjust.
* src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/binop.cc, src/ltlast/binop.hh, src/ltlast/bunop.cc,
src/ltlast/bunop.hh, src/ltlast/formula.cc, src/ltlast/formula.hh,
src/ltlast/multop.cc, src/ltlast/multop.hh, src/ltlast/unop.cc,
src/ltlast/unop.hh: Ajust the reference counting code.
* src/tgba/tgbagraph.hh, src/tgba/tgbagraph.cc (purge_dead_states): New.
* src/graph/graph.hh (defrag_states): New methods.
* src/tgbaalgos/dtgbacomp.cc: Use it.
* src/tgbatest/det.test: Fix state number.
This involves reimplementing some algorithms using tgba_digraph, and
implementing an explicit product that takes two tgba_digraphs and
produces a tgba_digraph.
* src/tgbaalgos/product.cc, src/tgbaalgos/product.hh: New files.
* src/tgbaalgos/Makefile.am: Adjust.
* src/bin/ltlcross.cc, src/tgba/tgba.cc, src/tgba/tgba.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgbaalgos/cycles.cc, src/tgbaalgos/cycles.hh,
src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh,
src/tgbaalgos/isweakscc.cc, src/tgbaalgos/isweakscc.hh,
src/tgbaalgos/minimize.cc, src/tgbaalgos/minimize.hh,
src/tgbaalgos/powerset.cc, src/tgbaalgos/powerset.hh,
src/tgbaalgos/safety.cc, src/tgbaalgos/safety.hh,
src/tgbaalgos/sccinfo.cc, src/tgbaalgos/sccinfo.hh,
src/tgbatest/complementation.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2ta.test, src/tgbatest/ltl2tgba.cc,
src/tgbatest/randtgba.cc: Update to use scc_info and/or tgba_digraph.
