Improving printout in the SAT solver.

src/sat/bsat/satSolver.c

@@ -1592,7 +1592,8 @@ int sat_solver_solve(sat_solver* s, lit* begin, lit* end, ABC_INT64_T nConfLimit
                 (double)s->stats.conflicts,
                 (double)s->stats.clauses, 
                 (double)s->stats.clauses_literals,
-                (double)nof_learnts, 
+//                (double)nof_learnts, 
+                (double)0, 
                 (double)s->stats.learnts, 
                 (double)s->stats.learnts_literals,
                 Ratio,

src/sat/bsat/satSolver2.c

@@ -1765,7 +1765,8 @@ int sat_solver2_solve(sat_solver2* s, lit* begin, lit* end, ABC_INT64_T nConfLim
                 (double)s->stats.conflicts,
                 (double)s->stats.clauses, 
                 (double)s->stats.clauses_literals,
-                (double)nof_learnts, 
+//                (double)nof_learnts, 
+                (double)0, 
                 (double)s->stats.learnts, 
                 (double)s->stats.learnts_literals,
                 (s->stats.learnts == 0)? 0.0 : (double)s->stats.learnts_literals / s->stats.learnts,