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optimize model pruning

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-10-13 17:52:37 -07:00
parent 0a8be25149
commit 148416122f
3 changed files with 32 additions and 17 deletions
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5
lib/pdr_util.h
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@ -214,7 +214,7 @@ class ternary_model_evaluator : public model_evaluator_base {
void del_model(expr* e);
bool get_assignment(expr* e, expr*& var, expr*& val);
void prune_cone_of_influence(ptr_vector<expr> const & formulas, expr_ref_vector& model);
void prune_by_cone_of_influence(ptr_vector<expr> const & formulas, expr_ref_vector& model);
void prune_by_probing(ptr_vector<expr> const & formulas, expr_ref_vector& model);
//00 -- non-visited
@ -246,7 +246,8 @@ public:
ternary_model_evaluator(ast_manager& m) : m(m), m_arith(m), m_bv(m) {}
virtual void minimize_model(ptr_vector<expr> const & formulas, expr_ref_vector & model);
void operator()(expr* e) { m_visited.mark(e, true); }
// for_each_expr visitor.
void operator()(expr* e) {}
};
void get_value_from_model(const model_core & mdl, func_decl * f, expr_ref& res);