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print_hoa: add option "k"

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* src/twaalgos/hoa.cc, src/twaalgos/hoa.hh: Implement it.
* NEWS, doc/org/hoa.org, src/bin/common_aoutput.cc: Document it.
* src/tests/readsave.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2015-11-27 23:26:17 +01:00
parent a825fa91e5
commit 745fda1a4f
6 changed files with 215 additions and 25 deletions
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109
doc/org/hoa.org
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@ -510,6 +510,79 @@ Acceptance: 6 (Fin(0)|Fin(1)) | (Fin(2) & Fin(3) & (Inf(4)&Inf(5)))
Here =Fin(0)|Fin(1)= is actually a single internal term =Fin({0,1})=,
and likewise for =Inf(4)&Inf(5)=.
** State-based vs. transition-based labels
State labels are handled in the same way as state-based acceptance:
Spot store labels on transitions internally, so if an input automaton
has state labels, those are pushed to all outgoing transitions.
For instance an automaton declared in some HOA file with this body:
#+BEGIN_SRC sh :results silent :exports results
cat >stvstrlab.hoa <<EOF
HOA: v1
States: 3
Start: 0
AP: 2 "p0" "p1"
Acceptance: 1 Inf(1)
--BODY--
State: [0&1] 0
0 1 2
State: [!0&1] 1 {0}
0 1
State: [!1] 2
2 1
--END--
EOF
#+END_SRC
#+RESULTS:
#+BEGIN_SRC sh :results verbatim :exports results :wrap SRC hoa
sed -n '/--BODY/,/--END/p' stvstrlab.hoa | grep -v -- --
#+END_SRC
#+RESULTS:
#+BEGIN_SRC hoa
State: [0&1] 0
0 1 2
State: [!0&1] 1 {0}
0 1
State: [!1] 2
2 1
#+END_SRC
will always be stored as an automaton with the following transition
structure
#+BEGIN_SRC sh :results verbatim :exports results :wrap SRC hoa
autfilt -Ht stvstrlab.hoa | sed -n '/--BODY/,/--END/p' | grep -v -- --
#+END_SRC
#+RESULTS:
#+BEGIN_SRC hoa
State: 0
[0&1] 0
[0&1] 1
[0&1] 2
State: 1
[!0&1] 0 {0}
[!0&1] 1 {0}
State: 2
[!1] 2
[!1] 1
#+END_SRC
#+BEGIN_SRC sh :results silent :exports results
rm -f stvstrlab.hoa
#+END_SRC
The HOA printer has an option to output automata using state-based
labels whenever that is possible. The option is named =k= (i.e., use
=-Hk= with command-line tools) because it is useful when the HOA file
is used to describe a Kripke structure.
** Property bits
The =HOA= format supports a number of optional =property:= tokens.
@ -577,24 +650,24 @@ particular:
to detect deterministic automata that have been output by algorithms
that do not try to output deterministic automata.
| property | parser | stored | printer | notes |
|---------------------+---------+--------+---------------------------------------------+--------------------------------------------------------|
| =state-labels= | checked | no | never | state labels are always converted to transition labels |
| =trans-labels= | checked | no | always, unless =-Hi= | |
| =implicit-labels= | checked | no | if =-Hi= | =-Hi= only works for deterministic automata |
| =explicit-labels= | checked | no | always, unless =-Hi= | |
| =state-acc= | checked | yes | re-checked, unless =-Ht= or =-Hm= | |
| =trans-acc= | checked | no | if not =state-acc= and not =-Hm= | |
| =no-univ-branch= | ignored | no | only if =-Hv= | |
| =deterministic= | checked | yes | re-checked | |
| =complete= | checked | no | re-checked | |
| =unambiguous= | trusted | yes | as stored if (=-Hv= or not =deterministic=) | can be re-checked with =--check=unambiguous= |
| =stutter-invariant= | trusted | yes | as stored | can be re-checked with =--check=stuttering= |
| =stutter-sensitive= | trusted | yes | as stored | can be re-checked with =--check=stuttering= |
| =terminal= | trusted | yes | as stored | can be re-checked with =--check=strength= |
| =weak= | trusted | yes | as stored if (=-Hv= or not =terminal=) | can be re-checked with =--check=strength= |
| =inherently-weak= | trusted | yes | as stored if (=-Hv= or not =weak=) | |
| =colored= | ignored | no | checked | |
| property | parser | stored | printer | notes |
|---------------------+---------+--------+---------------------------------------------+------------------------------------------------------------------|
| =state-labels= | checked | no | re-rechecked if =-Hk= | state labels are converted to transition labels when reading TωA |
| =trans-labels= | checked | no | always, unless =-Hi= or =-Hk= | |
| =implicit-labels= | checked | no | if =-Hi= | =-Hi= only works for deterministic automata |
| =explicit-labels= | checked | no | always, unless =-Hi= | |
| =state-acc= | checked | yes | re-checked, unless =-Ht= or =-Hm= | |
| =trans-acc= | checked | no | if not =state-acc= and not =-Hm= | |
| =no-univ-branch= | ignored | no | only if =-Hv= | |
| =deterministic= | checked | yes | re-checked | |
| =complete= | checked | no | re-checked | |
| =unambiguous= | trusted | yes | as stored if (=-Hv= or not =deterministic=) | can be re-checked with =--check=unambiguous= |
| =stutter-invariant= | trusted | yes | as stored | can be re-checked with =--check=stuttering= |
| =stutter-sensitive= | trusted | yes | as stored | can be re-checked with =--check=stuttering= |
| =terminal= | trusted | yes | as stored | can be re-checked with =--check=strength= |
| =weak= | trusted | yes | as stored if (=-Hv= or not =terminal=) | can be re-checked with =--check=strength= |
| =inherently-weak= | trusted | yes | as stored if (=-Hv= or not =weak=) | |
| =colored= | ignored | no | checked | |
** Named properties