/** Check for partial stutter insensitiveness using
* the nba and the complement nba */
public void checkNBAs(NBA nba, NBA nba_complement)
{
APSet apset = nba.getAPSet_cp();
bool nba_is_smaller = (nba.size() < nba_complement.size());
//if (_printInfo) {
// std::cerr << "Checking for insensitiveness" << std::endl;
//}
bool one_insensitive = false;
bool all_insensitive = true;
//for (APSet::element_iterator it=apset->all_elements_begin(); it!=apset->all_elements_end();++it)
for (int it = apset.all_elements_begin(); it != apset.all_elements_end(); ++it)
{
APElement elem = new APElement(it);
if (_partiallyInsensitive.get(it))
{
// don't recheck something we already now is stutter insensitive
one_insensitive = true;
continue;
}
// if (_printInfo) {
//std::cerr << "Checking " << elem.toString(*apset) << ": ";
//std::cerr.flush();
// }
bool insensitive;
if (nba_is_smaller)
{
insensitive = is_stutter_insensitive(nba, nba_complement, elem);
}
else
{
insensitive = is_stutter_insensitive(nba_complement, nba, elem);
}
if (insensitive)
{
_partiallyInsensitive.set(it);
one_insensitive = true;
//if (_printInfo) {
// std::cerr << "+" << std::endl;
//}
}
else
{
all_insensitive = false;
//if (_printInfo) {
// std::cerr << "-" << std::endl;
//}
}
}
_hasCheckedNBAs = true;
_partiallyStutterInsensitive = one_insensitive;
}
/**
* Print the DA in DOT format to the output stream.
* This functions expects that the DA is compact.
* @param da_type a string specifying the type of automaton ("DRA", "DSA").
* @param out the output stream
*/
public Graph AutomatonToDot()
{
Graph g = new Graph("graph");
g.Directed = true;
APSet ap_set = getAPSet();
Dictionary <int, string> stateToNumber = new Dictionary <int, string>();
for (int i_state = 0; i_state < this.size(); i_state++)
{
//out << "\"" << i_state << "\" [";
Node d = formatStateForDOT(i_state, g);
stateToNumber.Add(i_state, d.Id);
}
//out << "]\n"; // close parameters for state
for (int i_state = 0; i_state < this.size(); i_state++)
{
// transitions
DA_State cur_state = this.get(i_state);
if (cur_state.hasOnlySelfLoop())
{
// get first to-state, as all the to-states are the same
DA_State to = cur_state.edges().get(new APElement(ap_set.all_elements_begin()));
//out << "\"" << i_state << "\" -> \"" << to->getName();
//out << "\" [label=\" true\", color=blue]\n";
Edge edge = g.AddEdge(stateToNumber[i_state], "\u03A3", stateToNumber[to.getName()]);
//edge.Attr.Color = Color.Blue;
}
else
{
//for (APSet::element_iterator el_it=ap_set.all_elements_begin();el_it!=ap_set.all_elements_end();++el_it)
for (int el_it = ap_set.all_elements_begin(); el_it != ap_set.all_elements_end(); ++el_it)
{
APElement label = new APElement(el_it);
DA_State to_state = cur_state.edges().get(label);
int to_state_index = to_state.getName();
//out << "\"" << i_state << "\" -> \"" << to_state_index;
//out << "\" [label=\" " << label.toString(getAPSet(), false) << "\"]\n";
Edge edge = g.AddEdge(stateToNumber[i_state], label.toString(getAPSet(), false), stateToNumber[to_state_index]);
//edge.Attr.Color = Color.Blue;
}
}
}
return(g);
}
public EdgeContainerExplicit_APElement <BitSet> _container; //<BitSet>
/**
* Constructor.
* @param state the NBA_State owning this EdgeManager
* @param apset the underlying APSet
*/
public NBA_State_EdgeManager(NBA_State state, APSet apset)
{
_state = state;
_container = new EdgeContainerExplicit_APElement <BitSet>(apset.size());
//for (APSet::element_iterator eit=apset.all_elements_begin(); eit!=apset.all_elements_end(); ++eit) {
for (int i = apset.all_elements_begin(); i != apset.all_elements_end(); i++)
{
_container.addEdge(new APElement(i), new BitSet());
}
}
/** Make this automaton into an never accepting automaton */
public void constructEmpty()
{
DA_State n = this.newState();
setStartState(n);
//for (APSet::element_iterator it_elem= DA<Label,EdgeContainer,RabinAcceptance>::getAPSet().all_elements_begin();it_elem!=DA<Label,EdgeContainer,RabinAcceptance>::getAPSet().all_elements_end();++it_elem)
APSet ap_set = getAPSet();
for (int it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
{
APElement label = new APElement(it_elem);
n.edges().addEdge(label, n);
}
}
//typedef typename DA_t::state_type da_state_t;
//typedef typename Algorithm_t::state_t algo_state_t;
//typedef typename Algorithm_t::result_t algo_result_t;
//typedef TreeWithAcceptance<algo_state_t, typename Acceptance::signature_type> stuttered_state_t;
//typedef typename stuttered_state_t::ptr stuttered_state_ptr_t;
//typedef std::pair<stuttered_state_ptr_t, da_state_t*> unprocessed_value_t;
//typedef std::stack<unprocessed_value_t> unprocessed_stack_t;
/** Convert the NBA to the DA */
public void convert()
{
APSet ap_set = _da_result.getAPSet();
if (_algo.checkEmpty())
{
_da_result.constructEmpty();
return;
}
_algo.prepareAcceptance(_da_result.acceptance());
TreeWithAcceptance s_start = new TreeWithAcceptance(_algo.getStartState());
DA_State start_state = _da_result.newState();
s_start.generateAcceptance(start_state.acceptance());
if (_detailed_states)
{
//start_state->setDescription(s_start->toHTML());
start_state.setDescription("hahahahah");
}
_state_mapper.add(s_start, start_state);
_da_result.setStartState(start_state);
Stack <KeyValuePair <TreeWithAcceptance, DA_State> > unprocessed;
_unprocessed.Push(new KeyValuePair <TreeWithAcceptance, DA_State>(s_start, start_state));
bool all_insensitive = _stutter_information.isCompletelyInsensitive();
BitSet partial_insensitive = _stutter_information.getPartiallyInsensitiveSymbols();
while (_unprocessed.Count > 0)
{
KeyValuePair <TreeWithAcceptance, DA_State> top = _unprocessed.Pop();
//_unprocessed.pop();
TreeWithAcceptance from = top.Key;
DA_State da_from = top.Value;
//for (APSet::element_iterator it_elem=ap_set.all_elements_begin();it_elem!=ap_set.all_elements_end();++it_elem)
for (int it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
{
APElement elem = new APElement(it_elem);
if (da_from.edges().get(elem) == null)
{
// the edge was not yet calculated...
if (!all_insensitive && partial_insensitive.get(it_elem) == null)
{
// can't stutter for this symbol, do normal step
UnionState next_tree = _algo.delta(from.getTree() as UnionState, elem).getState();
TreeWithAcceptance next_state = new TreeWithAcceptance(next_tree);
add_transition(da_from, next_state, elem);
continue;
}
// normal stuttering...
calc_delta(from, da_from, elem);
if (_limit != 0 && _da_result.size() > _limit)
{
//THROW_EXCEPTION(LimitReachedException, "");
throw new Exception("LimitReachedException");
}
}
}
}
}
public EdgeContainerExplicit_APElement<BitSet> _container; //<BitSet>
/**
* Constructor.
* @param state the NBA_State owning this EdgeManager
* @param apset the underlying APSet
*/
public NBA_State_EdgeManager(NBA_State state, APSet apset)
{
_state = state;
_container = new EdgeContainerExplicit_APElement<BitSet>(apset.size());
//for (APSet::element_iterator eit=apset.all_elements_begin(); eit!=apset.all_elements_end(); ++eit) {
for (int i = apset.all_elements_begin(); i != apset.all_elements_end(); i++)
{
_container.addEdge(new APElement(i), new BitSet());
}
}
/**
* Generate a DA using the Algorithm
* Throws LimitReachedException if a limit is set (>0) and
* there are more states in the generated DA than the limit.
* @param algo the algorithm
* @param da_result the DA where the result is stored
* (has to have same APSet as the nba)
* @param limit a limit for the number of states (0 disables the limit).
*/
public void convert(SafraAlgorithm algo, DRA da_result, int limit)
{
/** The hash map from DA_State to StateInterface */
StateMapper <StateInterface, DA_State> state_mapper = new StateMapper <StateInterface, DA_State>();
APSet ap_set = da_result.getAPSet();////////////************where dose this dra have ap_set?
if (algo.checkEmpty())
{
da_result.constructEmpty();
return;
}
//typedef typename DA_t::state_type da_state_t;
//typedef typename Algorithm_t::state_t algo_state_t;
//typedef typename Algorithm_t::result_t algo_result_t;
//* Creates new acceptance pairs according to da_result's acceptance.
algo.prepareAcceptance(da_result.acceptance());////*********don't understand well
StateInterface start = algo.getStartState();
DA_State start_state = da_result.newState();/////************?? what is in this newState?
start.generateAcceptance(start_state.acceptance());
if (_detailed_states)
{
start_state.setDescription(start.toHTML());
}
state_mapper.add(start, start_state);
da_result.setStartState(start_state);
//typedef std::pair<algo_state_t, da_state_t*> unprocessed_value;
Stack <KeyValuePair <StateInterface, DA_State> > unprocessed = new Stack <KeyValuePair <StateInterface, DA_State> >();
unprocessed.Push(new KeyValuePair <StateInterface, DA_State>(start, start_state));
while (unprocessed.Count > 0)
{
KeyValuePair <StateInterface, DA_State> top = unprocessed.Pop();
//unprocessed.pop();
StateInterface cur = top.Key; //safratreeNode
DA_State from = top.Value; //DA_state
//for (APSet::element_iterator it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
for (int it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem) ///from 0 to 2^ap_set.size
{
APElement elem = new APElement(it_elem); /////////set simpleBitset = it_elem
ResultStateInterface <SafraTree> result = algo.delta(cur as SafraTree, elem); /////get a new safraTree through elem
DA_State to = state_mapper.find(result.getState());
if (to == null)////////////////result is not in state mapper.
{
to = da_result.newState();
result.getState().generateAcceptance(to.acceptance());
if (_detailed_states)
{
to.setDescription(result.getState().toHTML());
}
state_mapper.add(result.getState(), to);
unprocessed.Push(new KeyValuePair <StateInterface, DA_State>(result.getState(), to));
}
from.edges().set(elem, to);//////////////add this edge.
if (limit != 0 && da_result.size() > limit)
{
throw new LimitReachedException("");
}
}
}
}
/**
* Generate a DA using the Algorithm
* Throws LimitReachedException if a limit is set (>0) and
* there are more states in the generated DA than the limit.
* @param algo the algorithm
* @param da_result the DA where the result is stored
* (has to have same APSet as the nba)
* @param limit a limit for the number of states (0 disables the limit).
*/
public void convert(DAUnionAlgorithm algo, DRA da_result, int limit)
{
StateMapper <StateInterface, DA_State> state_mapper = new StateMapper <StateInterface, DA_State>();
APSet ap_set = da_result.getAPSet();
if (algo.checkEmpty())
{
da_result.constructEmpty();
return;
}
//typedef typename DA_t::state_type da_state_t;
//typedef typename Algorithm_t::state_t algo_state_t;
//typedef typename Algorithm_t::result_t algo_result_t;
algo.prepareAcceptance(da_result.acceptance());
StateInterface start = algo.getStartState();
DA_State start_state = da_result.newState();
start.generateAcceptance(start_state.acceptance());
if (_detailed_states)
{
start_state.setDescription(start.toHTML());
}
state_mapper.add(start, start_state);
da_result.setStartState(start_state);
//typedef std::pair<algo_state_t, da_state_t*> unprocessed_value;
Stack <KeyValuePair <StateInterface, DA_State> > unprocessed = new Stack <KeyValuePair <StateInterface, DA_State> >();
unprocessed.Push(new KeyValuePair <StateInterface, DA_State>(start, start_state));
while (unprocessed.Count > 0)
{
KeyValuePair <StateInterface, DA_State> top = unprocessed.Pop();
//unprocessed.pop();
StateInterface cur = top.Key;
DA_State from = top.Value;
//for (APSet::element_iterator it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
for (int it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
{
APElement elem = new APElement(it_elem);
ResultStateInterface <UnionState> result = algo.delta(cur as UnionState, elem);
DA_State to = state_mapper.find(result.getState());
if (to == null)
{
to = da_result.newState();
result.getState().generateAcceptance(to.acceptance());
if (_detailed_states)
{
to.setDescription(result.getState().toHTML());
}
state_mapper.add(result.getState(), to);
unprocessed.Push(new KeyValuePair <StateInterface, DA_State>(result.getState(), to));
}
from.edges().set(elem, to);
if (limit != 0 && da_result.size() > limit)
{
throw new LimitReachedException("");
}
}
}
}
public static NBA product_automaton(NBA nba_1, NBA nba_2)
{
Debug.Assert(nba_1.getAPSet() == nba_2.getAPSet());
NBA product_nba = new NBA(nba_1.getAPSet_cp());
APSet apset = nba_1.getAPSet();
Debug.Assert(apset == nba_2.getAPSet());
for (int s_1 = 0; s_1 < nba_1.size(); s_1++)
{
for (int s_2 = 0; s_2 < nba_2.size(); s_2++)
{
for (int copy = 0; copy < 2; copy++)
{
int s_r = product_nba.nba_i_newState();
Debug.Assert(s_r == (s_1 * nba_2.size() + s_2) * 2 + copy);
int to_copy = copy;
if (copy == 0 && nba_1[s_1].isFinal())
{
to_copy = 1;
}
if (copy == 1 && nba_2[s_2].isFinal())
{
product_nba[s_r].setFinal(true);
to_copy = 0;
}
//for (typename APSet::element_iterator it=apset.all_elements_begin();it!=apset.all_elements_end();++it)
for (int it = apset.all_elements_begin(); it != apset.all_elements_end(); it++)
{
APElement label = new APElement(it);
BitSet to_s1 = nba_1[s_1].getEdge(label);
BitSet to_s2 = nba_2[s_2].getEdge(label);
BitSet to_set = new BitSet();
//for (BitSetIterator it_e_1 = BitSetIterator(*to_s1); it_e_1 != BitSetIterator::end(*to_s1); ++it_e_1)
//for (int it_e_1 = 0; it_e_1 != to_s1.bitset.Count; ++it_e_1)
for (int it_e_1 = BitSetIterator.start(to_s1); it_e_1 != BitSetIterator.end(to_s1); it_e_1 = BitSetIterator.increment(to_s1, it_e_1))
{
//for (BitSetIterator it_e_2 = BitSetIterator(*to_s2); it_e_2 != BitSetIterator::end(*to_s2); ++it_e_2)
//for (int it_e_2 = 0; it_e_2 != to_s2.bitset.Count; ++it_e_2)
for (int it_e_2 = BitSetIterator.start(to_s2); it_e_2 != BitSetIterator.end(to_s2); it_e_2 = BitSetIterator.increment(to_s2, it_e_2))
{
int to = it_e_1 * nba_2.size() + it_e_2 * 2 + to_copy;
to_set.set(to);
}
}
product_nba[s_r].getEdge(label).Assign(to_set);
}
}
}
}
int start_1 = nba_1.getStartState().getName();
int start_2 = nba_2.getStartState().getName();
product_nba.setStartState(product_nba[start_1 * nba_2.size() + start_2]);
return(product_nba);
}
/**
* Generate a new DRA from a coloring
*/
DRA generateDRAfromColoring(DRA oldDRA, Coloring coloring, bool detailedStates)
{
DRA newDRA = oldDRA.createInstance(oldDRA.getAPSet()) as DRA;
newDRA.acceptance().newAcceptancePairs(oldDRA.acceptance().size());
for (int color = 0; color < coloring.countColors(); ++color)
{
newDRA.newState();
}
int old_start_state = oldDRA.getStartState().getName();
int start_state_color = coloring.state2color(old_start_state);
newDRA.setStartState(newDRA.get(start_state_color));
APSet apset = newDRA.getAPSet();
for (int color = 0; color < coloring.countColors(); ++color)
{
DA_State new_state = newDRA.get(color);
int old_state_representative = coloring.color2state(color);
DA_State old_state = oldDRA[old_state_representative];
if (detailedStates)
{
BitSet old_states = coloring.color2states(color);
// create new description...
if (old_states.cardinality() == 1)
{
if (old_state.hasDescription())
{
new_state.setDescription(old_state.getDescription());
}
}
else
{
//std::ostringstream s;
//s << "<TABLE BORDER=\"1\" CELLBORDER=\"0\"><TR><TD>{</TD>";
StringBuilder s = new StringBuilder(@"<TABLE BORDER=\""1\"" CELLBORDER=\""0\""><TR><TD>{</TD>");
bool first = true;
for (int it = BitSetIterator.start(old_states); it != BitSetIterator.end(old_states); it = BitSetIterator.increment(old_states, it))
{
if (first)
{
first = false;
}
else
{
s.Append("<TD>,</TD>");
}
s.Append("<TD>");
if (!oldDRA[it].hasDescription())
{
s.Append(it);
}
else
{
s.Append(oldDRA[it].getDescription());
}
s.Append("</TD>");
}
s.Append("<TD>}</TD></TR></TABLE>");
new_state.setDescription(s.ToString());
;
}
}
// Create appropriate acceptance conditions
int old_state_index = old_state.getName();
for (int i = 0; i < oldDRA.acceptance().size(); ++i)
{
if (oldDRA.acceptance().isStateInAcceptance_L(i, old_state_index))
{
new_state.acceptance().addTo_L(i);
}
if (oldDRA.acceptance().isStateInAcceptance_U(i, old_state_index))
{
new_state.acceptance().addTo_U(i);
}
}
//for (APSet::element_iterator label=apset.all_elements_begin();label!=apset.all_elements_end();++label)
for (int label = apset.all_elements_begin(); label != apset.all_elements_end(); ++label)
{
DA_State old_to = old_state.edges().get(new APElement(label));
int to_color = coloring.state2color(old_to.getName());
new_state.edges().addEdge(new APElement(label), newDRA.get(to_color));
}
}
return(newDRA);
}
public static void dba2dra(NBA nba, DRA dra_result, bool complement)
{
//complement=false
DRA dra = dra_result;
APSet ap_set = dra.getAPSet();;
dra.acceptance().newAcceptancePair();
for (int i = 0; i < nba.size(); i++)
{
dra.newState();
if (complement)
{
// Final states -> U_0, all states -> L_0
if (nba[i].isFinal())
{
dra.acceptance().stateIn_U(0, i);
}
dra.acceptance().stateIn_L(0, i);
}
else
{
// Final states -> L_0, U_0 is empty
if (nba[i].isFinal())
{
dra.acceptance().stateIn_L(0, i);
}
}
}
if (nba.getStartState() != null)
{
dra.setStartState(dra[nba.getStartState().getName()]);
}
DA_State sink_state = null;
for (int i = 0; i < nba.size(); i++)
{
NBA_State nba_state = nba[i];
DA_State dra_from = dra[i];
//for (APSet::element_iterator label=ap_set->all_elements_begin();label!=ap_set->all_elements_end(); ++label)
for (int label = ap_set.all_elements_begin(); label != ap_set.all_elements_end(); ++label)
{
BitSet to = nba_state.getEdge(new APElement(label));
int to_cardinality = 0;
if (to != null)
{
to_cardinality = to.cardinality();
}
DA_State dra_to = null;
if (to == null || to_cardinality == 0)
{
// empty to -> go to sink state
if (sink_state == null)
{
// we have to create the sink
sink_state = dra.newState();
// if we complement, we have to add the sink to
// L_0
if (complement)
{
sink_state.acceptance().addTo_L(0);
}
}
dra_to = sink_state;
}
else if (to_cardinality == 1)
{
int to_index = to.nextSetBit(0);
// std::cerr << "to: " << to_index << std::endl;
dra_to = dra[to_index];
}
else
{
// to_cardinality>1 !
throw new IllegalArgumentException("NBA is no DBA!");
}
dra_from.edges().addEdge(new APElement(label), dra_to);
}
}
if (sink_state != null)
{
// there is a sink state
// make true-loop from sink state to itself
//for (APSet::element_iterator label=ap_set->all_elements_begin();label!=ap_set->all_elements_end();++label) {
for (int label = ap_set.all_elements_begin(); label != ap_set.all_elements_end(); ++label)
{
sink_state.edges().addEdge(new APElement(label), sink_state);
}
}
}