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Add a new form of TA with a Single-pass emptiness check (STA)

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* src/ta/ta.cc, src/ta/ta.hh, src/ta/taexplicit.cc,
src/ta/taexplicit.hh, src/ta/taproduct.cc,src/ta/taproduct.hh,
src/taalgos/dotty.cc, src/taalgos/emptinessta.cc,
src/taalgos/emptinessta.hh, src/taalgos/minimize.cc,
src/taalgos/reachiter.cc, src/taalgos/sba2ta.cc, src/taalgos/sba2ta.hh,
src/tgbatest/ltl2ta.test, src/tgbatest/ltl2tgba.cc: Impacts of the
implementation of a new variant of TA, called STA, which involve a
Single-pass emptiness check. The new options (-in and -lv) added to
build the new variants of TA allow to add two artificial states:
1- an initial artificial state to have an unique initial state (-in)
2- a livelock artificial state which has no successors in order to
obtain the new form of TA which requires only a Single-pass emptiness-
check: STA (-lv).
This commit is contained in:
Ala-Eddine Ben-Salem 2011-05-17 23:41:45 +02:00 • committed by Alexandre Duret-Lutz
parent 310973f88c
commit 782ba0010b
15 changed files with 1224 additions and 711 deletions
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4
src/ta/ta.hh
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@ -49,6 +49,9 @@ namespace spot
virtual const states_set_t
get_initial_states_set() const = 0;
virtual spot::state*
get_artificial_initial_state() const = 0;
virtual ta_succ_iterator*
succ_iter(const spot::state* s) const = 0;
@ -67,6 +70,7 @@ namespace spot
virtual bool
is_livelock_accepting_state(const spot::state* s) const = 0;
virtual bool
is_initial_state(const spot::state* s) const = 0;