randaut: add a --colored option
Fixes #83. * src/bin/randaut.cc: Add option. * src/twaalgos/randomgraph.cc, src/twaalgos/randomgraph.hh: Honor it. * src/tests/randaut.test: Add tests. * doc/org/randaut.org: Document it.
This commit is contained in:
Alexandre Duret-Lutz
parent
97665a584e
commit
715805fad3
5 changed files with 148 additions and 33 deletions
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@ -152,7 +152,7 @@ $txt
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* Acceptance condition
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The generation of the acceptance sets abn is controlled with the following three parameters:
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The generation of the acceptance sets abn is controlled with the following four parameters:
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- =-A ACCEPTANCE= (or =--acceptance=ACCEPTANCE=) controls both the acceptance condition,
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and the number of associated acceptance sets. The =ACCEPTANCE= argument is documented
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@ -191,12 +191,17 @@ randaut --help | sed -n '/^ \(ACCEPTANCE\|RANGE\)/,/^$/p'
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- =-a= (or =--acc-probability=) controls the probability that any
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transition belong to a given acceptance set.
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- =-S= (or =--state-acc=) requests that the automaton use state-based
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acceptance. In this case, =-a= is the probability that a /state/
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belong to the acceptance set. (Because Spot only deals with
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transition-based acceptance internally, this options force all
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transitions leaving a state to belong to the same acceptance sets.
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But if the output format allows state-acceptance, it will be used.)
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- =-S= (or =--state-based-acceptance=) requests that the automaton
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use state-based acceptance. In this case, =-a= is the probability
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that a /state/ belong to the acceptance set. (Because Spot only
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deals with transition-based acceptance internally, this options
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force all transitions leaving a state to belong to the same
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acceptance sets. But if the output format allows state-based
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acceptance, it will be used.)
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- =--colored= requests that each transition (of state if combined with =-S=)
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in the generated automaton should belong to exactly one set (in that
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case =-a= is ignored, and =-A= must be used to specify an acceptance
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condition with at least one set).
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In addition, =-B= (or =--ba=) is a shorthand for =-A1 -S=,
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ans =-s= (or =--spin=) implies =-B=.
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@ -268,14 +273,14 @@ $txt
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#+NAME: randaut5b
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#+BEGIN_SRC sh :results verbatim :exports code
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randaut -Q6 -d0.4 --state-acc -a.2 -A 'Streett 1..3' 2 --dot=.a
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randaut -Q6 -d0.4 -S -a.2 -A 'Streett 1..3' 2 --dot=.a
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#+END_SRC
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#+RESULTS: randaut5b
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#+begin_example
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digraph G {
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rankdir=LR
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label=<(Fin(<font color="#5DA5DA">â¿</font>) | Inf(<font color="#F17CB0">â¶</font>)) & (Fin(<font color="#FAA43A">â·</font>) | Inf(<font color="#B276B2">â¸</font>))>
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label=<(Fin(<font color="#5DA5DA">⓿</font>) | Inf(<font color="#F17CB0">❶</font>)) & (Fin(<font color="#FAA43A">❷</font>) | Inf(<font color="#B276B2">❸</font>))>
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labelloc="t"
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node [shape="circle"]
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fontname="Lato"
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@ -290,21 +295,20 @@ digraph G {
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0 -> 3 [label=<!p0 & !p1>]
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1 [label=<1>]
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1 -> 5 [label=<!p0 & p1>]
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2 [label=<2<br/><font color="#5DA5DA">â¿</font><font color="#FAA43A">â·</font>>]
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2 -> 0 [label=<!p0 & p1>]
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2 -> 4 [label=<!p0 & !p1>]
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2 [label=<2<br/><font color="#5DA5DA">⓿</font><font color="#FAA43A">❷</font>>]
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2 -> 1 [label=<!p0 & p1>]
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2 -> 2 [label=<!p0 & !p1>]
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2 -> 4 [label=<p0 & p1>]
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3 [label=<3>]
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3 -> 1 [label=<!p0 & !p1>]
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3 -> 2 [label=<p0 & !p1>]
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3 -> 5 [label=<!p0 & !p1>]
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3 -> 4 [label=<p0 & !p1>]
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4 [label=<4<br/><font color="#B276B2">â¸</font>>]
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4 -> 2 [label=<p0 & !p1>]
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4 -> 5 [label=<!p0 & !p1>]
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4 -> 3 [label=<!p0 & p1>]
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5 [label=<5<br/><font color="#F17CB0">â¶</font>>]
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5 -> 3 [label=<!p0 & p1>]
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3 -> 2 [label=<!p0 & !p1>]
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3 -> 3 [label=<!p0 & p1>]
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4 [label=<4>]
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4 -> 0 [label=<!p0 & !p1>]
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4 -> 5 [label=<!p0 & p1>]
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5 [label=<5<br/><font color="#F17CB0">❶</font><font color="#FAA43A">❷</font>>]
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5 -> 1 [label=<p0 & p1>]
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5 -> 2 [label=<!p0 & !p1>]
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5 -> 3 [label=<p0 & p1>]
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}
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#+end_example
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@ -314,6 +318,73 @@ $txt
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#+RESULTS:
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[[file:randaut5b.png]]
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For generating random parity automata you should use the option
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=--colored= to make sure each transition (or state in the following
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example) belong to exactly one acceptance set. Note that you can
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specify a precise parity acceptance such as =parity min even 3=, or
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give =randaut= some freedom, as in this example.
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#+NAME: randaut5c
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#+BEGIN_SRC sh :results verbatim :exports code
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randaut -Q10 -S --colored -A 'parity rand rand 3..4' 2 --dot=.a
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#+END_SRC
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#+RESULTS: randaut5c
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#+begin_example
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digraph G {
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rankdir=LR
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label=<Inf(<font color="#5DA5DA">⓿</font>) | (Fin(<font color="#F17CB0">❶</font>) & (Inf(<font color="#FAA43A">❷</font>) | Fin(<font color="#B276B2">❸</font>)))>
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labelloc="t"
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node [shape="circle"]
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fontname="Lato"
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node [fontname="Lato"]
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edge [fontname="Lato"]
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node[style=filled, fillcolor="#ffffa0"] edge[arrowhead=vee, arrowsize=.7]
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I [label="", style=invis, width=0]
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I -> 0
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0 [label=<0<br/><font color="#F17CB0">❶</font>>]
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0 -> 2 [label=<!p0 & !p1>]
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0 -> 8 [label=<!p0 & !p1>]
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0 -> 0 [label=<p0 & !p1>]
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0 -> 6 [label=<!p0 & p1>]
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1 [label=<1<br/><font color="#B276B2">❸</font>>]
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1 -> 5 [label=<!p0 & !p1>]
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1 -> 9 [label=<!p0 & p1>]
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2 [label=<2<br/><font color="#FAA43A">❷</font>>]
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2 -> 4 [label=<p0 & p1>]
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2 -> 5 [label=<!p0 & !p1>]
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3 [label=<3<br/><font color="#5DA5DA">⓿</font>>]
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3 -> 6 [label=<p0 & !p1>]
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3 -> 1 [label=<!p0 & p1>]
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4 [label=<4<br/><font color="#5DA5DA">⓿</font>>]
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4 -> 6 [label=<!p0 & !p1>]
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4 -> 1 [label=<p0 & p1>]
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5 [label=<5<br/><font color="#5DA5DA">⓿</font>>]
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5 -> 0 [label=<!p0 & !p1>]
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5 -> 8 [label=<p0 & !p1>]
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5 -> 7 [label=<!p0 & !p1>]
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6 [label=<6<br/><font color="#5DA5DA">⓿</font>>]
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6 -> 2 [label=<!p0 & !p1>]
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6 -> 3 [label=<!p0 & !p1>]
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7 [label=<7<br/><font color="#FAA43A">❷</font>>]
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7 -> 3 [label=<!p0 & p1>]
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7 -> 1 [label=<!p0 & p1>]
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8 [label=<8<br/><font color="#5DA5DA">⓿</font>>]
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8 -> 3 [label=<!p0 & p1>]
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8 -> 4 [label=<p0 & !p1>]
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8 -> 2 [label=<p0 & !p1>]
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8 -> 0 [label=<!p0 & p1>]
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9 [label=<9<br/><font color="#F17CB0">❶</font>>]
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9 -> 0 [label=<p0 & p1>]
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9 -> 6 [label=<p0 & !p1>]
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}
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#+end_example
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#+BEGIN_SRC dot :file randaut5c.png :cmdline -Tpng :var txt=randaut5c :exports results
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$txt
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#+END_SRC
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#+RESULTS:
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[[file:randaut5c.png]]
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* Determinism
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@ -69,6 +69,7 @@ a high density of transitions, and 3 to 4 atomic propositions:\n\
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enum {
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OPT_SEED = 1,
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OPT_COLORED,
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};
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static const argp_option options[] =
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@ -83,6 +84,9 @@ static const argp_option options[] =
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"use a negative value for unbounded generation", 0 },
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{ "ba", 'B', 0, 0,
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"build a Buchi automaton (implies --acceptance=Buchi --state-acc)", 0 },
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{ "colored", OPT_COLORED, 0, 0,
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"build an automaton in which each transition (or state if combined with "
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"-S) belong to a single acceptance set", 0 },
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{ "density", 'd', "FLOAT", 0, "density of the transitions (0.2)", 0 },
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{ "deterministic", 'D', 0, 0, "build a complete, deterministic automaton ",
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0 },
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@ -138,10 +142,11 @@ static const char* opt_seed_str = "0";
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static int opt_automata = 1;
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static range opt_states = { 10, 10 };
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static float opt_density = 0.2;
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static range opt_acc_sets = { 0, 0 };
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static range opt_acc_sets = { -1, 0 };
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static float opt_acc_prob = 0.2;
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static bool opt_deterministic = false;
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static bool opt_state_acc = false;
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static bool opt_colored = false;
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static bool ba_wanted = false;
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static bool generic_wanted = false;
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static bool gba_wanted = false;
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@ -224,6 +229,9 @@ parse_opt(int key, char* arg, struct argp_state* as)
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opt_uniq =
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std::unique_ptr<unique_aut_t>(new std::set<std::vector<tr_t>>());
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break;
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case OPT_COLORED:
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opt_colored = true;
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break;
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case OPT_SEED:
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opt_seed = to_int(arg);
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opt_seed_str = arg;
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@ -290,6 +298,16 @@ main(int argc, char** argv)
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if (automaton_format == Spin)
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ba_options();
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if (opt_colored && opt_acc_sets.min == -1 && !generic_wanted)
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error(2, 0, "--colored requires at least one acceptance set; "
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"use --acceptance");
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if (opt_colored && opt_acc_sets.min == 0)
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error(2, 0, "--colored requires at least one acceptance set; "
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"fix the range of --acceptance");
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if (opt_acc_sets.min == -1)
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opt_acc_sets.min = 0;
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try
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{
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spot::srand(opt_seed);
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@ -328,12 +346,16 @@ main(int argc, char** argv)
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{
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code = spot::parse_acc_code(opt_acceptance);
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accs = code.used_sets().max_set();
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if (opt_colored && accs == 0)
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error(2, 0, "--colored requires at least one acceptance set; "
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"fix the range of --acceptance");
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}
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auto aut =
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spot::random_graph(size, opt_density, &aprops, d,
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accs, opt_acc_prob, 0.5,
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opt_deterministic, opt_state_acc);
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opt_deterministic, opt_state_acc,
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opt_colored);
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if (opt_acceptance)
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aut->set_acceptance(accs, code);
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@ -133,3 +133,15 @@ AP: 2 "p0" "p1"
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AP: 3 "p0" "p1" "p2"
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EOF
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diff output expected
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$randaut -A3 --colored 2 -H | grep 'properties:.*colored'
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$randaut -S -A'parity min even 3' --colored 2 -H | grep 'properties:.*colored'
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$randaut --colored 2 2>stderr && exit 1
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grep 'randaut: --colored requires' stderr
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$randaut -A0..2 --colored 2 2>stderr && exit 1
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grep 'randaut: --colored requires' stderr
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$randaut -S -A'parity min even 0..3' -q -n10 --colored 2 2>stderr && exit 1
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grep 'randaut: --colored requires' stderr
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:
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@ -36,7 +36,7 @@ namespace spot
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namespace
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{
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unsigned
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static unsigned
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random_deterministic_labels_rec(std::vector<bdd>& labels, int *props,
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int props_n, bdd current, unsigned n)
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{
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@ -69,7 +69,7 @@ namespace spot
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}
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}
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std::vector<bdd>
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static std::vector<bdd>
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random_deterministic_labels(int *props, int props_n, unsigned n)
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{
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std::vector<bdd> bddvec;
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@ -77,16 +77,23 @@ namespace spot
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return bddvec;
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}
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acc_cond::mark_t
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random_acc_cond(twa_graph_ptr aut, unsigned n_accs, float a)
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static acc_cond::mark_t
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random_acc(unsigned n_accs, float a)
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{
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acc_cond::mark_t m = 0U;
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for (unsigned i = 0U; i < n_accs; ++i)
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if (drand() < a)
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m |= aut->acc().mark(i);
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m.set(i);
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return m;
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}
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static acc_cond::mark_t
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random_acc1(unsigned n_accs)
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{
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auto u = static_cast<unsigned>(mrand(static_cast<int>(n_accs)));
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return acc_cond::mark_t({u});
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}
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bdd
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random_labels(int* props, int props_n, float t)
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{
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@ -118,7 +125,7 @@ namespace spot
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random_graph(int n, float d,
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const ltl::atomic_prop_set* ap, const bdd_dict_ptr& dict,
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unsigned n_accs, float a, float t,
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bool deterministic, bool state_acc)
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bool deterministic, bool state_acc, bool colored)
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{
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assert(n > 0);
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auto res = make_twa_graph(dict);
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@ -188,12 +195,12 @@ namespace spot
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unsigned dst;
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acc_cond::mark_t m = 0U;
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if (state_acc)
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m = random_acc_cond(res, n_accs, a);
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m = colored ? random_acc1(n_accs) : random_acc(n_accs, a);
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for (auto& l: labels)
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{
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if (!state_acc)
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m = random_acc_cond(res, n_accs, a);
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m = colored ? random_acc1(n_accs) : random_acc(n_accs, a);
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// No connection to unreachable successors so far. This
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// is our last chance, so force it now.
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@ -51,6 +51,8 @@ namespace spot
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/// is true.
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/// \param deterministic build a complete and deterministic automaton
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/// \param state_acc build an automaton with state-based acceptance
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/// \param colored build an automaton in which each transition (or state)
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/// belongs to a single acceptance set.
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///
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/// This algorithms is adapted from the one in Fig 6.2 page 48 of
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/** \verbatim
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@ -81,7 +83,8 @@ namespace spot
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random_graph(int n, float d,
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const ltl::atomic_prop_set* ap, const bdd_dict_ptr& dict,
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unsigned n_accs = 0, float a = 0.1, float t = 0.5,
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bool deterministic = false, bool state_acc = false);
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bool deterministic = false, bool state_acc = false,
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bool colored = false);
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/// Build a random acceptance where each acceptance sets is used once.
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SPOT_API acc_cond::acc_code random_acceptance(unsigned n_accs);
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