h

- avoid more platform specific behavior when using m_mk_extract,
- rename mk_eq in bool_rewriter to mk_eq_plain to distinguish it from mk_eq_rw
- rework bv_lookahead to be more closely based on sls_engine, which has much better heuristic behavior than attempt 1.

src/ast/sls/sls_bv_plugin.cpp

@@ -50,6 +50,10 @@ namespace sls {
         return false;
     }
 
+    void bv_plugin::start_propagation() {
+        m_eval.start_propagation();
+    }
+
     void bv_plugin::propagate_literal(sat::literal lit) {       
         SASSERT(ctx.is_true(lit));
         auto e = ctx.atom(lit.var());