Make solvers less verbose unless debugging

Signed-off-by: František Nečas <[email protected]>

Author: FrNecas

src/domains/incremental_solver.h

@@ -135,6 +135,9 @@ class incremental_solvert:public messaget
   contextst contexts;
 
  protected:
+#ifndef DEBUG
+  null_message_handlert null_message_handler;
+#endif
   unsigned activation_literal_counter;
   unsigned domain_number; // ids for each domain instance to make symbols unique
   bool arith_refinement;
@@ -144,7 +147,11 @@ class incremental_solvert:public messaget
 
   void allocate_solvers(bool arith_refinement)
   {
+#ifdef DEBUG
     sat_check=new satcheckt(get_message_handler());
+#else
+    sat_check=new satcheckt(null_message_handler);
+#endif
 #if 0
     sat_check=new satcheck_minisat_no_simplifiert();
 #endif