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bin: add support for -b/--buchi

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* bin/common_post.cc, bin/randaut.cc: Implement -b/--buchi.
Also add --sba as alias for -B, and --gba as alias for --tgba.
* NEWS: Document those changes.
* doc/org/ltl2tgba.org, doc/org/oaut.org: Adjust documentation.
* tests/core/ltl2tgba2.test, tests/core/ltlcross2.test,
tests/core/randaut.test: Add more tests.
* tests/core/sbacc.test: --sbacc cannot be abbreviated as --sba
anymore.
This commit is contained in:
Alexandre Duret-Lutz 2020-12-15 17:55:39 +01:00
parent 7c6b35313a
commit 8785f5a74b
9 changed files with 520 additions and 479 deletions
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51
doc/org/oaut.org
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@ -297,48 +297,67 @@ represented in the first version.
* LBTT output
The [[http://www.tcs.hut.fi/Software/lbtt/doc/html/Format-for-automata.html][LBTT]] output has two flavors: state-based (which is used to output
Büchi automata or monitors) or transition-based (for TGBA).
The [[http://www.tcs.hut.fi/Software/lbtt/doc/html/Format-for-automata.html][LBTT]] output has two flavors: state-based or transition-based. The
transition flavor can be recognized by the present of a =t= after the
second number. (The first number is the number of states, while the
second number is the number of acceptance sets used.)
Compare the following transition-based and state-based Büchi automata
for =GFp0=:
#+BEGIN_SRC sh
ltl2tgba --ba --lbtt 'p0 U p1'
ltl2tgba -b --lbtt 'GFp0'
#+END_SRC
#+RESULTS:
: 1 1t
: 0 1
: 0 -1 ! p0
: 0 0 -1 p0
: -1
#+BEGIN_SRC sh
ltl2tgba -B --lbtt 'GFp0'
#+END_SRC
#+RESULTS:
: 2 1
: 0 1 -1
: 1 p1
: 0 & p0 ! p1
: 0 1 0 -1
: 0 p0
: 1 ! p0
: -1
: 1 0 0 -1
: 1 t
: 1 0 -1
: 0 p0
: 1 ! p0
: -1
If you want to request transition-based output even for Büchi automata,
use =--lbtt=t=.
Since even state-based automata are stored as transition-based
automata by Spot, it is also possible to force transition-based
LBTT output to be used even if the automaton declares itself as
state-based. This is done by passing =--lbtt=t=.
#+BEGIN_SRC sh
ltl2tgba --ba --lbtt=t 'p0 U p1'
ltl2tgba -B --lbtt=t 'GFp0'
#+END_SRC
#+RESULTS:
: 2 1t
: 0 1
: 1 -1 p1
: 0 -1 & p0 ! p1
: 0 0 -1 p0
: 1 0 -1 ! p0
: -1
: 1 0
: 1 0 -1 t
: 0 -1 p0
: 1 -1 ! p0
: -1
Note that the [[http://www.tcs.hut.fi/Software/lbtt/doc/html/Format-for-automata.html][LBTT]] output generalizes the format output by [[http://www.tcs.hut.fi/Software/maria/tools/lbt/][LBT]] with
support for transition-based acceptance. Both formats however are
restricted to atomic propositions of the form =p0=, =p1=, etc... In
case other atomic propositions are used, Spot output them in double
quotes. This other extension of the format is also supported by
quotes. This second extension of the format was introduced by
[[http://www.ltl2dstar.de/][ltl2dstar]].
#+BEGIN_SRC sh
ltl2tgba --ba --lbtt 'a U b'
ltl2tgba -B --lbtt 'a U b'
#+END_SRC
#+RESULTS: