safra: rename as determinize
* spot/twaalgos/safra.cc, spot/twaalgos/safra.hh: Rename as... * spot/twaalgos/determinize.cc, spot/twaalgos/determinize.hh: ... these. * spot/twaalgos/Makefile.am, tests/core/safra.cc: Adjust.
This commit is contained in:
Alexandre Duret-Lutz
parent
cd71286fb5
commit
f9252aa703
4 changed files with 8 additions and 8 deletions
659
spot/twaalgos/determinize.cc
Normal file
659
spot/twaalgos/determinize.cc
Normal file
|
|
@ -0,0 +1,659 @@
|
|||
// -*- coding: utf-8 -*-
|
||||
// Copyright (C) 2015, 2016 Laboratoire de Recherche et Développement
|
||||
// de l'Epita.
|
||||
//
|
||||
// This file is part of Spot, a model checking library.
|
||||
//
|
||||
// Spot is free software; you can redistribute it and/or modify it
|
||||
// under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// Spot is distributed in the hope that it will be useful, but WITHOUT
|
||||
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
||||
// License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#include <algorithm>
|
||||
#include <deque>
|
||||
#include <stack>
|
||||
#include <utility>
|
||||
#include <unordered_map>
|
||||
|
||||
#include "spot/twaalgos/determinize.hh"
|
||||
#include "spot/twaalgos/degen.hh"
|
||||
#include "spot/twaalgos/sccfilter.hh"
|
||||
#include "spot/twaalgos/simulation.hh"
|
||||
#include "spot/twaalgos/complete.hh"
|
||||
|
||||
namespace spot
|
||||
{
|
||||
namespace
|
||||
{
|
||||
using power_set = std::map<safra_state, int>;
|
||||
const char* const sub[10] =
|
||||
{
|
||||
"\u2080",
|
||||
"\u2081",
|
||||
"\u2082",
|
||||
"\u2083",
|
||||
"\u2084",
|
||||
"\u2085",
|
||||
"\u2086",
|
||||
"\u2087",
|
||||
"\u2088",
|
||||
"\u2089",
|
||||
};
|
||||
|
||||
std::string subscript(unsigned start)
|
||||
{
|
||||
std::string res;
|
||||
do
|
||||
{
|
||||
res = sub[start % 10] + res;
|
||||
start /= 10;
|
||||
}
|
||||
while (start);
|
||||
return res;
|
||||
}
|
||||
|
||||
// Returns true if lhs has a smaller nesting pattern than rhs
|
||||
// If lhs and rhs are the same, return false.
|
||||
bool nesting_cmp(const std::vector<node_helper::brace_t>& lhs,
|
||||
const std::vector<node_helper::brace_t>& rhs)
|
||||
{
|
||||
size_t m = std::min(lhs.size(), rhs.size());
|
||||
size_t i = 0;
|
||||
for (; i < m; ++i)
|
||||
{
|
||||
if (lhs[i] != rhs[i])
|
||||
return lhs[i] < rhs[i];
|
||||
}
|
||||
return lhs.size() > rhs.size();
|
||||
}
|
||||
|
||||
// Used to remove all acceptance whos value is above and equal max_acc
|
||||
void remove_dead_acc(twa_graph_ptr& aut, unsigned max_acc)
|
||||
{
|
||||
assert(max_acc < 32);
|
||||
unsigned mask = (1 << max_acc) - 1;
|
||||
for (auto& t: aut->edges())
|
||||
{
|
||||
t.acc &= mask;
|
||||
}
|
||||
}
|
||||
|
||||
struct compare
|
||||
{
|
||||
bool
|
||||
operator() (const safra_state::safra_node_t& lhs,
|
||||
const safra_state::safra_node_t& rhs)
|
||||
{
|
||||
return lhs.second < rhs.second;
|
||||
}
|
||||
};
|
||||
|
||||
// Return the sorteds nodes in ascending order
|
||||
std::vector<safra_state::safra_node_t>
|
||||
sorted_nodes(const safra_state::nodes_t& nodes)
|
||||
{
|
||||
std::vector<safra_state::safra_node_t> res;
|
||||
for (auto& n: nodes)
|
||||
res.emplace_back(n.first, n.second);
|
||||
std::sort(res.begin(), res.end(), compare());
|
||||
return res;
|
||||
}
|
||||
|
||||
std::string
|
||||
nodes_to_string(const safra_state::nodes_t& states)
|
||||
{
|
||||
auto copy = sorted_nodes(states);
|
||||
std::ostringstream os;
|
||||
std::stack<unsigned> s;
|
||||
bool first = true;
|
||||
for (auto& n: copy)
|
||||
{
|
||||
auto it = n.second.begin();
|
||||
// Find brace on top of stack in vector
|
||||
// If brace is not present, then we close it as no other ones of that
|
||||
// type will be found since we ordered our vector
|
||||
while (!s.empty())
|
||||
{
|
||||
it = std::lower_bound(n.second.begin(), n.second.end(),
|
||||
s.top());
|
||||
if (it == n.second.end() || *it != s.top())
|
||||
{
|
||||
os << subscript(s.top()) << '}';
|
||||
s.pop();
|
||||
}
|
||||
else
|
||||
{
|
||||
if (*it == s.top())
|
||||
++it;
|
||||
break;
|
||||
}
|
||||
}
|
||||
// Add new braces
|
||||
while (it != n.second.end())
|
||||
{
|
||||
os << '{' << subscript(*it);
|
||||
s.push(*it);
|
||||
++it;
|
||||
first = true;
|
||||
}
|
||||
if (!first)
|
||||
os << ' ';
|
||||
os << n.first;
|
||||
first = false;
|
||||
}
|
||||
// Finish unwinding stack to print last braces
|
||||
while (!s.empty())
|
||||
{
|
||||
os << subscript(s.top()) << '}';
|
||||
s.pop();
|
||||
}
|
||||
return os.str();
|
||||
}
|
||||
|
||||
std::vector<std::string>*
|
||||
print_debug(std::map<safra_state, int>& states)
|
||||
{
|
||||
auto res = new std::vector<std::string>(states.size());
|
||||
for (auto& p: states)
|
||||
(*res)[p.second] = nodes_to_string(p.first.nodes_);
|
||||
return res;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
std::vector<bool> find_scc_paths(const scc_info& scc);
|
||||
|
||||
unsigned
|
||||
safra_state::find_scc_brace_id(unsigned scc_id, const scc_info& scc)
|
||||
{
|
||||
for (auto& n: nodes_)
|
||||
{
|
||||
if (scc_id == scc.scc_of(n.first))
|
||||
return n.second.front();
|
||||
}
|
||||
return -1U;
|
||||
}
|
||||
|
||||
safra_state
|
||||
safra_state::compute_succ(const const_twa_graph_ptr& aut,
|
||||
const bdd& ap,
|
||||
const scc_info& scc,
|
||||
const std::map<int, bdd>& implications,
|
||||
const std::vector<bool>& is_connected,
|
||||
bool scc_opt,
|
||||
bool use_bisimulation) const
|
||||
{
|
||||
safra_state ss = safra_state(nb_braces_.size());
|
||||
for (auto& node: nodes_)
|
||||
{
|
||||
for (auto& t: aut->out(node.first))
|
||||
{
|
||||
if (!bdd_implies(ap, t.cond))
|
||||
continue;
|
||||
// Check if we are leaving the SCC, if so we delete all the
|
||||
// braces as no cycles can be found with that node
|
||||
if (scc_opt && scc.scc_of(node.first) != scc.scc_of(t.dst))
|
||||
if (scc.is_accepting_scc(scc.scc_of(t.dst)))
|
||||
{
|
||||
// Find scc_id in the safra state currently being
|
||||
// constructed
|
||||
unsigned scc_id = ss.find_scc_brace_id(scc.scc_of(t.dst),
|
||||
scc);
|
||||
// If SCC is present in node use the same id
|
||||
if (scc_id != -1U)
|
||||
ss.update_succ({ scc_id }, t.dst,
|
||||
{ /* empty */ });
|
||||
// Create a new SCC
|
||||
else
|
||||
ss.update_succ({ /* no braces */ }, t.dst,
|
||||
{ 0 });
|
||||
}
|
||||
else
|
||||
// When entering non accepting SCC don't create any braces
|
||||
ss.update_succ({ /* no braces */ }, t.dst, { /* empty */ });
|
||||
else
|
||||
ss.update_succ(node.second, t.dst, t.acc);
|
||||
assert(ss.nb_braces_.size() == ss.is_green_.size());
|
||||
}
|
||||
}
|
||||
if (use_bisimulation)
|
||||
ss.merge_redundant_states(implications, scc, is_connected);
|
||||
ss.ungreenify_last_brace();
|
||||
ss.color_ = ss.finalize_construction();
|
||||
return ss;
|
||||
}
|
||||
|
||||
void
|
||||
safra_state::compute_succs(const const_twa_graph_ptr& aut,
|
||||
succs_t& res,
|
||||
const scc_info& scc,
|
||||
const std::map<int, bdd>& implications,
|
||||
const std::vector<bool>& is_connected,
|
||||
std::unordered_map<bdd, unsigned, bdd_hash>& bdd2num,
|
||||
std::vector<bdd>& all_bdds,
|
||||
bool scc_opt,
|
||||
bool use_bisimulation,
|
||||
bool use_stutter) const
|
||||
{
|
||||
for (auto& ap: all_bdds)
|
||||
{
|
||||
safra_state ss = *this;
|
||||
|
||||
if (use_stutter && aut->prop_stutter_invariant())
|
||||
{
|
||||
std::vector<color_t> colors;
|
||||
unsigned int counter = 0;
|
||||
std::map<safra_state, unsigned int> safra2id;
|
||||
bool stop = false;
|
||||
while (!stop)
|
||||
{
|
||||
auto pair = safra2id.insert({ss, counter++});
|
||||
// insert should never fail
|
||||
assert(pair.second);
|
||||
ss = ss.compute_succ(aut, ap, scc, implications, is_connected,
|
||||
scc_opt, use_bisimulation);
|
||||
colors.push_back(ss.color_);
|
||||
stop = safra2id.find(ss) != safra2id.end();
|
||||
}
|
||||
// Add color of final transition that loops back
|
||||
colors.push_back(ss.color_);
|
||||
unsigned int loop_start = safra2id[ss];
|
||||
for (auto& min: safra2id)
|
||||
{
|
||||
if (min.second >= loop_start && ss < min.first)
|
||||
ss = min.first;
|
||||
}
|
||||
ss.color_ = *std::min_element(colors.begin(), colors.end());
|
||||
}
|
||||
else
|
||||
ss = compute_succ(aut, ap, scc, implications, is_connected,
|
||||
scc_opt, use_bisimulation);
|
||||
unsigned bdd_idx = bdd2num[ap];
|
||||
res.emplace_back(ss, bdd_idx);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
safra_state::merge_redundant_states(const std::map<int, bdd>& implications,
|
||||
const scc_info& scc,
|
||||
const std::vector<bool>& is_connected)
|
||||
{
|
||||
std::vector<int> to_remove;
|
||||
for (auto& n1: nodes_)
|
||||
{
|
||||
for (auto& n2: nodes_)
|
||||
{
|
||||
if (n1 == n2)
|
||||
continue;
|
||||
// index to see if there is a path from scc2 -> scc1
|
||||
unsigned idx = scc.scc_count() * scc.scc_of(n2.first) +
|
||||
scc.scc_of(n1.first);
|
||||
if (bdd_implies(implications.at(n1.first),
|
||||
implications.at(n2.first)) && !is_connected[idx])
|
||||
{
|
||||
to_remove.push_back(n1.first);
|
||||
}
|
||||
}
|
||||
}
|
||||
for (auto& n: to_remove)
|
||||
{
|
||||
for (auto& brace: nodes_[n])
|
||||
{
|
||||
--nb_braces_[brace];
|
||||
}
|
||||
nodes_.erase(n);
|
||||
}
|
||||
}
|
||||
|
||||
void safra_state::ungreenify_last_brace()
|
||||
{
|
||||
// Step A4: For a brace to emit green it must surround other braces.
|
||||
// Hence, the last brace cannot emit green as it is the most inside brace.
|
||||
for (auto& n: nodes_)
|
||||
{
|
||||
if (!n.second.empty())
|
||||
is_green_[n.second.back()] = false;
|
||||
}
|
||||
}
|
||||
|
||||
safra_state::color_t safra_state::finalize_construction()
|
||||
{
|
||||
unsigned red = -1U;
|
||||
unsigned green = -1U;
|
||||
std::vector<unsigned> rem_succ_of;
|
||||
assert(is_green_.size() == nb_braces_.size());
|
||||
for (unsigned i = 0; i < is_green_.size(); ++i)
|
||||
{
|
||||
if (nb_braces_[i] == 0)
|
||||
{
|
||||
// Step A3: Brackets that do not contain any nodes emit red
|
||||
is_green_[i] = false;
|
||||
|
||||
// First brace can now be zero with new optim making it possible to
|
||||
// emit red 0
|
||||
red = std::min(red, 2 * i);
|
||||
}
|
||||
else if (is_green_[i])
|
||||
{
|
||||
green = std::min(green, 2 * i + 1);
|
||||
// Step A4 Emit green
|
||||
rem_succ_of.emplace_back(i);
|
||||
}
|
||||
}
|
||||
for (auto& n: nodes_)
|
||||
{
|
||||
// Step A4 Remove all brackets inside each green pair
|
||||
node_helper::truncate_braces(n.second, rem_succ_of, nb_braces_);
|
||||
}
|
||||
|
||||
// Step A5 define the rem variable
|
||||
std::vector<unsigned> decr_by(nb_braces_.size());
|
||||
unsigned decr = 0;
|
||||
for (unsigned i = 0; i < nb_braces_.size(); ++i)
|
||||
{
|
||||
// Step A5 renumber braces
|
||||
nb_braces_[i - decr] = nb_braces_[i];
|
||||
if (nb_braces_[i] == 0)
|
||||
{
|
||||
++decr;
|
||||
}
|
||||
// Step A5, renumber braces
|
||||
decr_by[i] = decr;
|
||||
}
|
||||
nb_braces_.resize(nb_braces_.size() - decr);
|
||||
for (auto& n: nodes_)
|
||||
{
|
||||
node_helper::renumber(n.second, decr_by);
|
||||
}
|
||||
return std::min(red, green);
|
||||
}
|
||||
|
||||
void node_helper::renumber(std::vector<brace_t>& braces,
|
||||
const std::vector<unsigned>& decr_by)
|
||||
{
|
||||
for (unsigned idx = 0; idx < braces.size(); ++idx)
|
||||
{
|
||||
braces[idx] -= decr_by[braces[idx]];
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
node_helper::truncate_braces(std::vector<brace_t>& braces,
|
||||
const std::vector<unsigned>& rem_succ_of,
|
||||
std::vector<size_t>& nb_braces)
|
||||
{
|
||||
for (unsigned idx = 0; idx < braces.size(); ++idx)
|
||||
{
|
||||
bool found = false;
|
||||
// find first brace that matches rem_succ_of
|
||||
for (auto s: rem_succ_of)
|
||||
{
|
||||
found |= braces[idx] == s;
|
||||
}
|
||||
if (found)
|
||||
{
|
||||
assert(idx < braces.size() - 1);
|
||||
// For each deleted brace, decrement elements of nb_braces
|
||||
// This corresponds to A4 step
|
||||
for (unsigned i = idx + 1; i < braces.size(); ++i)
|
||||
{
|
||||
--nb_braces[braces[i]];
|
||||
}
|
||||
braces.resize(idx + 1);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void safra_state::update_succ(const std::vector<node_helper::brace_t>& braces,
|
||||
state_t dst, const acc_cond::mark_t acc)
|
||||
{
|
||||
std::vector<node_helper::brace_t> copy = braces;
|
||||
if (acc.count())
|
||||
{
|
||||
assert(acc.has(0) && acc.count() == 1 && "Only TBA are accepted");
|
||||
// Accepting edge generate new braces: step A1
|
||||
copy.emplace_back(nb_braces_.size());
|
||||
// nb_braces_ gets updated later so put 0 for now
|
||||
nb_braces_.emplace_back(0);
|
||||
// Newly created braces cannot emit green as they won't have
|
||||
// any braces inside them (by construction)
|
||||
is_green_.push_back(false);
|
||||
}
|
||||
auto i = nodes_.emplace(dst, copy);
|
||||
if (!i.second)
|
||||
{
|
||||
// Step A2: Only keep the smallest nesting pattern (i-e braces_) for
|
||||
// identical nodes. Nesting_cmp returnes true if copy is smaller
|
||||
if (nesting_cmp(copy, i.first->second))
|
||||
{
|
||||
// Remove brace count of replaced node
|
||||
for (auto b: i.first->second)
|
||||
--nb_braces_[b];
|
||||
i.first->second = std::move(copy);
|
||||
}
|
||||
else
|
||||
// Node already exists and has bigger nesting pattern value
|
||||
return;
|
||||
}
|
||||
// After inserting new node, update the brace count per node
|
||||
for (auto b: i.first->second)
|
||||
++nb_braces_[b];
|
||||
}
|
||||
|
||||
// Called only to initialize first state
|
||||
safra_state::safra_state(state_t val, bool init_state, bool accepting_scc)
|
||||
{
|
||||
if (init_state)
|
||||
{
|
||||
unsigned state_num = val;
|
||||
if (!accepting_scc)
|
||||
{
|
||||
std::vector<node_helper::brace_t> braces = { /* no braces */ };
|
||||
nodes_.emplace(state_num, std::move(braces));
|
||||
}
|
||||
else
|
||||
{
|
||||
std::vector<node_helper::brace_t> braces = { 0 };
|
||||
nodes_.emplace(state_num, std::move(braces));
|
||||
// First brace has init_state hence one state inside the first
|
||||
// braces.
|
||||
nb_braces_.push_back(1);
|
||||
// One brace set
|
||||
is_green_.push_back(true);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
unsigned nb_braces = val;
|
||||
// One brace set
|
||||
is_green_.assign(nb_braces, true);
|
||||
// Newly created states are the empty mocrstate
|
||||
nb_braces_.assign(nb_braces, 0);
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
safra_state::operator<(const safra_state& other) const
|
||||
{
|
||||
if (nodes_ == other.nodes_)
|
||||
{
|
||||
for (auto& n: nodes_)
|
||||
{
|
||||
auto it = other.nodes_.find(n.first);
|
||||
assert(it != other.nodes_.end());
|
||||
if (nesting_cmp(n.second, it->second))
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
return nodes_ < other.nodes_;
|
||||
}
|
||||
|
||||
std::vector<bool>
|
||||
find_scc_paths(const scc_info& scc)
|
||||
{
|
||||
unsigned scccount = scc.scc_count();
|
||||
std::vector<bool> res(scccount * scccount, 0);
|
||||
for (unsigned i = 0; i < scccount; ++i)
|
||||
res[i + scccount * i] = 1;
|
||||
for (unsigned i = 0; i < scccount; ++i)
|
||||
{
|
||||
std::stack<unsigned> s;
|
||||
s.push(i);
|
||||
while (!s.empty())
|
||||
{
|
||||
unsigned src = s.top();
|
||||
s.pop();
|
||||
for (auto& d: scc.succ(src))
|
||||
{
|
||||
s.push(d);
|
||||
unsigned idx = scccount * i + d;
|
||||
res[idx] = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
twa_graph_ptr
|
||||
tgba_determinisation(const const_twa_graph_ptr& a, bool bisimulation,
|
||||
bool pretty_print, bool scc_opt, bool use_bisimulation,
|
||||
bool complete, bool use_stutter)
|
||||
{
|
||||
// Degeneralize
|
||||
twa_graph_ptr aut = spot::degeneralize_tba(a);
|
||||
std::map<int, bdd> implications;
|
||||
if (use_bisimulation)
|
||||
{
|
||||
aut = spot::scc_filter(aut);
|
||||
aut = simulation(aut, &implications);
|
||||
}
|
||||
scc_info scc = scc_info(aut);
|
||||
std::vector<bool> is_connected = find_scc_paths(scc);
|
||||
|
||||
bdd allap = bddtrue;
|
||||
{
|
||||
typedef std::set<bdd, bdd_less_than> sup_map;
|
||||
sup_map sup;
|
||||
// Record occurrences of all guards
|
||||
for (auto& t: aut->edges())
|
||||
sup.emplace(t.cond);
|
||||
for (auto& i: sup)
|
||||
allap &= bdd_support(i);
|
||||
}
|
||||
|
||||
// Preprocessing
|
||||
// Used to convert atomic bdd to id
|
||||
std::unordered_map<bdd, unsigned, bdd_hash> bdd2num;
|
||||
std::vector<bdd> num2bdd;
|
||||
// Nedded for compute succs
|
||||
// Used to convert large bdd to indexes
|
||||
std::unordered_map<bdd, std::pair<unsigned, unsigned>, bdd_hash> deltas;
|
||||
std::vector<safra_state::bdd_id_t> bddnums;
|
||||
for (auto& t: aut->edges())
|
||||
{
|
||||
auto it = deltas.find(t.cond);
|
||||
if (it == deltas.end())
|
||||
{
|
||||
bdd all = t.cond;
|
||||
unsigned prev = bddnums.size();
|
||||
while (all != bddfalse)
|
||||
{
|
||||
bdd one = bdd_satoneset(all, allap, bddfalse);
|
||||
all -= one;
|
||||
auto p = bdd2num.emplace(one, num2bdd.size());
|
||||
if (p.second)
|
||||
num2bdd.push_back(one);
|
||||
bddnums.emplace_back(p.first->second);
|
||||
}
|
||||
deltas[t.cond] = std::make_pair(prev, bddnums.size());
|
||||
}
|
||||
}
|
||||
|
||||
auto res = make_twa_graph(aut->get_dict());
|
||||
res->copy_ap_of(aut);
|
||||
res->prop_copy(aut,
|
||||
{ false, // state based
|
||||
false, // inherently_weak
|
||||
false, // deterministic
|
||||
true // stutter inv
|
||||
});
|
||||
|
||||
// Given a safra_state get its associated state in output automata.
|
||||
// Required to create new edges from 2 safra-state
|
||||
power_set seen;
|
||||
auto init_state = aut->get_init_state_number();
|
||||
bool start_accepting = scc.is_accepting_scc(scc.scc_of(init_state)) ||
|
||||
!scc_opt;
|
||||
safra_state init(init_state, true, start_accepting);
|
||||
unsigned num = res->new_state();
|
||||
res->set_init_state(num);
|
||||
seen.insert(std::make_pair(init, num));
|
||||
std::deque<safra_state> todo;
|
||||
todo.push_back(init);
|
||||
unsigned sets = 0;
|
||||
using succs_t = safra_state::succs_t;
|
||||
succs_t succs;
|
||||
while (!todo.empty())
|
||||
{
|
||||
safra_state curr = todo.front();
|
||||
unsigned src_num = seen.find(curr)->second;
|
||||
todo.pop_front();
|
||||
curr.compute_succs(aut, succs, scc, implications, is_connected,
|
||||
bdd2num, num2bdd, scc_opt, use_bisimulation,
|
||||
use_stutter);
|
||||
for (auto s: succs)
|
||||
{
|
||||
// Don't construct sink state as complete does a better job at this
|
||||
if (s.first.nodes_.empty())
|
||||
continue;
|
||||
auto i = seen.find(s.first);
|
||||
unsigned dst_num;
|
||||
if (i != seen.end())
|
||||
{
|
||||
dst_num = i->second;
|
||||
}
|
||||
else
|
||||
{
|
||||
dst_num = res->new_state();
|
||||
todo.push_back(s.first);
|
||||
seen.insert(std::make_pair(s.first, dst_num));
|
||||
}
|
||||
if (s.first.color_ != -1U)
|
||||
{
|
||||
res->new_edge(src_num, dst_num, num2bdd[s.second],
|
||||
{s.first.color_});
|
||||
// We only care about green acc which are odd
|
||||
if (s.first.color_ % 2 == 1)
|
||||
sets = std::max(s.first.color_ + 1, sets);
|
||||
}
|
||||
else
|
||||
res->new_edge(src_num, dst_num, num2bdd[s.second]);
|
||||
}
|
||||
succs.clear();
|
||||
}
|
||||
remove_dead_acc(res, sets);
|
||||
// Acceptance is now min(odd) since we con emit Red on paths 0 with new opti
|
||||
res->set_acceptance(sets, acc_cond::acc_code::parity(false, true, sets));
|
||||
res->prop_deterministic(true);
|
||||
res->prop_state_acc(false);
|
||||
|
||||
if (bisimulation)
|
||||
res = simulation(res);
|
||||
if (pretty_print)
|
||||
res->set_named_prop("state-names", print_debug(seen));
|
||||
if (complete)
|
||||
spot::complete_here(res);
|
||||
return res;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue