Use more sba_explicit more often.

* src/tgbaalgos/minimize.cc, src/tgbaalgos/minimize.hh
(minimize_dfa, minimize_wdba): Return a sba_explicit_number automaton
instead of tgba_explicit_number.
* src/tgba/tgbaexplicit.hh (declare_acceptance_condition): Fix code
so it works on sba as well.
* src/tgbaalgos/dotty.cc, src/tgbaalgos/neverclaim.cc: Specialize
for sba instead of tgba_sba_proxy.
* src/tgbaalgos/neverclaim.hh: Point to degeneralize().

src/tgba/tgbaexplicit.hh

@@ -598,7 +598,7 @@ namespace spot
       neg_acceptance_conditions_ &= neg;
 
       // Append neg to all acceptance conditions.
-      typename explicit_graph<State, tgba>::ls_map::iterator i;
+      typename ls_map::iterator i;
       for (i = this->ls_.begin(); i != this->ls_.end(); ++i)
 	{
 	  typename transitions_t::iterator i2;

src/tgbaalgos/dotty.cc

@@ -23,6 +23,7 @@
 
 #include <ostream>
 #include "tgba/tgba.hh"
+#include "tgba/sba.hh"
 #include "dotty.hh"
 #include "dottydec.hh"
 #include "tgba/bddprint.hh"
@@ -42,7 +43,7 @@ namespace spot
 		dotty_decorator* dd)
 	: tgba_reachable_iterator_breadth_first(a), os_(os),
 	  mark_accepting_states_(mark_accepting_states), dd_(dd),
-	  sba_(dynamic_cast<const tgba_sba_proxy*>(a))
+	  sba_(dynamic_cast<const sba*>(a))
       {
       }
 
@@ -120,7 +121,7 @@ namespace spot
       std::ostream& os_;
       bool mark_accepting_states_;
       dotty_decorator* dd_;
-      const tgba_sba_proxy* sba_;
+      const sba* sba_;
     };
   }
 

src/tgbaalgos/minimize.cc

@@ -114,7 +114,7 @@ namespace spot
 
   // From the base automaton and the list of sets, build the minimal
   // resulting automaton
-  tgba_explicit_number* build_result(const tgba* a,
+  sba_explicit_number* build_result(const tgba* a,
                                      std::list<hash_set*>& sets,
                                      hash_set* final)
   {
@@ -133,7 +133,7 @@ namespace spot
       ++num;
     }
     typedef state_explicit_number::transition trs;
-    tgba_explicit_number* res = new tgba_explicit_number(a->get_dict());
+    sba_explicit_number* res = new sba_explicit_number(a->get_dict());
     // For each transition in the initial automaton, add the corresponding
     // transition in res.
     if (!final->empty())
@@ -294,8 +294,8 @@ namespace spot
 
   }
 
-  tgba_explicit_number* minimize_dfa(const tgba_explicit_number* det_a,
-				     hash_set* final, hash_set* non_final)
+  sba_explicit_number* minimize_dfa(const tgba_explicit_number* det_a,
+				    hash_set* final, hash_set* non_final)
   {
     typedef std::list<hash_set*> partition_t;
     partition_t cur_run;
@@ -484,7 +484,7 @@ namespace spot
 #endif
 
     // Build the result.
-    tgba_explicit_number* res = build_result(det_a, done, final_copy);
+    sba_explicit_number* res = build_result(det_a, done, final_copy);
 
     // Free all the allocated memory.
     delete final_copy;
@@ -503,7 +503,7 @@ namespace spot
   }
 
 
-  tgba_explicit_number* minimize_monitor(const tgba* a)
+  sba_explicit_number* minimize_monitor(const tgba* a)
   {
     hash_set* final = new hash_set;
     hash_set* non_final = new hash_set;
@@ -521,7 +521,7 @@ namespace spot
     return minimize_dfa(det_a, final, non_final);
   }
 
-  tgba_explicit_number* minimize_wdba(const tgba* a)
+  sba_explicit_number* minimize_wdba(const tgba* a)
   {
     hash_set* final = new hash_set;
     hash_set* non_final = new hash_set;
@@ -596,7 +596,7 @@ namespace spot
 	      if (wdba_scc_is_accepting(det_a, m, a, sm, pm))
 		{
 		  is_useless = false;
-		  d[m] = (l | 1) - 1; // largest even number inferior or equal
+		  d[m] = l & ~1; // largest even number inferior or equal
 		}
 	      else
 		{
@@ -608,7 +608,7 @@ namespace spot
 
 	  if (!is_useless)
 	    {
-	      hash_set* dest_set = (d[m]&1) ? non_final : final;
+	      hash_set* dest_set = (d[m] & 1) ? non_final : final;
 	      const std::list<const state*>& l = sm.states_of(m);
 	      std::list<const state*>::const_iterator il;
 	      for (il = l.begin(); il != l.end(); ++il)
@@ -625,7 +625,7 @@ namespace spot
 		      const ltl::formula* f, const tgba* aut_neg_f,
 		      bool reject_bigger)
   {
-    tgba_explicit_number* min_aut_f = minimize_wdba(aut_f);
+    sba_explicit_number* min_aut_f = minimize_wdba(aut_f);
 
     if (reject_bigger)
       {

src/tgbaalgos/minimize.hh

@@ -59,7 +59,7 @@ namespace spot
   /// \param a the automaton to convert into a minimal deterministic monitor
   /// \pre Dead SCCs should have been removed from \a a before
   ///      calling this function.
-  tgba_explicit_number* minimize_monitor(const tgba* a);
+  sba_explicit_number* minimize_monitor(const tgba* a);
 
   /// \brief Minimize a Büchi automaton in the WDBA class.
   ///
@@ -95,7 +95,7 @@ namespace spot
   ///   month     = oct
   /// }
   /// \endverbatim
-  tgba_explicit_number* minimize_wdba(const tgba* a);
+  sba_explicit_number* minimize_wdba(const tgba* a);
 
   /// \brief Minimize an automaton if it represents an obligation property.
   ///

src/tgbaalgos/neverclaim.cc

@@ -24,7 +24,7 @@
 #include <ostream>
 #include <sstream>
 #include "bdd.h"
-#include "tgba/tgbatba.hh"
+#include "tgba/sba.hh"
 #include "neverclaim.hh"
 #include "tgba/bddprint.hh"
 #include "reachiter.hh"
@@ -43,7 +43,7 @@ namespace spot
 	: tgba_reachable_iterator_breadth_first(a),
 	  os_(os), f_(f), accept_all_(-1), fi_needed_(false),
 	  comments_(comments), all_acc_conds_(a->all_acceptance_conditions()),
-	  degen_(dynamic_cast<const tgba_sba_proxy*>(a))
+	  sba_(dynamic_cast<const sba*>(a))
       {
       }
 
@@ -75,10 +75,10 @@ namespace spot
       bool
       state_is_accepting(const state *s)
       {
-	// If the automaton is degeneralized on-the-fly,
-	// it's easier to just query the state_is_accepting() method.
-	if (degen_)
-	  return degen_->state_is_accepting(s);
+	// If the automaton is a SBA, it's easier to just query the
+	// state_is_accepting() method.
+	if (sba_)
+	  return sba_->state_is_accepting(s);
 
 	// Otherwise, since we are dealing with a degeneralized
 	// automaton nonetheless, the transitions leaving an accepting
@@ -197,7 +197,7 @@ namespace spot
       state* init_;
       bool comments_;
       bdd all_acc_conds_;
-      const tgba_sba_proxy* degen_;
+      const sba* sba_;
     };
   } // anonymous
 

src/tgbaalgos/neverclaim.hh

@@ -1,5 +1,5 @@
-// Copyright (C) 2009, 2011 Laboratoire de Recherche et Développement
-// de l'Epita (LRDE).
+// Copyright (C) 2009, 2011, 2012 Laboratoire de Recherche et
+// Développement de l'Epita (LRDE).
 // Copyright (C) 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
 // et Marie Curie.
@@ -37,7 +37,8 @@ namespace spot
   /// \param g The (state-based degeneralized) automaton to output.
   ///          There should be only one acceptance condition, and
   ///          all the transitions of a state should be either all accepting
-  ///          or all unaccepting.
+  ///          or all unaccepting.  If your automaton does not satisfies
+  ///          these requirements, call degeneralize() first.
   /// \param f The (optional) formula associated to the automaton.  If given
   ///          it will be output as a comment.
   /// \param comments Whether to comment each state of the never clause