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Common Knowledge operators support

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Artur Meski
2018-11-24 12:58:26 +00:00
parent ff0031244e
commit 34f7b503c1
6 changed files with 77 additions and 11 deletions
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29
mc.cc
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@@ -359,6 +359,16 @@ BDD ModelChecker::getStatesRSCTLK(const FormRSCTLK *form)
auto proc_id = srs->rs->getProcessID(form->getSingleAgent());
return *reach - (statesNK(*reach - getStatesRSCTLK(form->getLeftSF()), proc_id) * *reach);
}
else if (oper == RSCTLK_NC)
{
auto proc_set = form->getAgentsAsProcSet(srs->rs);
return statesNC(getStatesRSCTLK(form->getLeftSF()) * *reach, proc_set) * *reach;
}
else if (oper == RSCTLK_UC)
{
auto proc_set = form->getAgentsAsProcSet(srs->rs);
return *reach - (statesNC(*reach - getStatesRSCTLK(form->getLeftSF()), proc_set) * *reach);
}
assert(0); // Should never happen
return BDD_FALSE;
@@ -453,6 +463,25 @@ BDD ModelChecker::statesNK(const BDD &states, Process proc_id)
return x;
}
BDD ModelChecker::statesNC(const BDD &states, ProcSet processes)
{
BDD x = BDD_FALSE;
BDD x_p = *reach;
while (x != x_p)
{
x_p = x;
BDD t = BDD_FALSE;
for (auto const &proc_id : processes)
{
t += x.ExistAbstract(getIthOnly(proc_id));
}
x = t;
}
return x;
}
BDD ModelChecker::getIthOnly(Process proc_id)
{
/* if possible, we return the BDD from cache */