Do not output right-hand sides of assignments in symex debug output

The right-hand side may be a large expression and clutters the output.

Author: tautschnig

src/goto-symex/symex_target_equation.cpp

@@ -915,13 +915,13 @@ void symex_target_equationt::SSA_stept::output(std::ostream &out) const
     UNREACHABLE;
   }
 
-  if(is_assert() || is_assume() || is_assignment() || is_constraint())
+  if(is_assert() || is_assume() || is_constraint())
     out << format(cond_expr) << '\n';
 
   if(is_assert() || is_constraint())
     out << comment << '\n';
 
-  if(is_shared_read() || is_shared_write())
+  if(is_shared_read() || is_shared_write() || is_assignment())
     out << format(ssa_lhs) << '\n';
 
   out << "Guard: " << format(guard) << '\n';