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add smt lookahead

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-05-17 20:24:29 +03:00
parent dd4b8b9ff8
commit d2dcb39c11
11 changed files with 187 additions and 17 deletions
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10
src/smt/smt_kernel.cpp
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@ -18,6 +18,7 @@ Revision History:
--*/
#include "smt/smt_kernel.h"
#include "smt/smt_context.h"
#include "smt/smt_lookahead.h"
#include "ast/ast_smt2_pp.h"
#include "smt/params/smt_params_helper.hpp"
@ -202,8 +203,9 @@ namespace smt {
m_kernel.get_guessed_literals(result);
}
expr* next_decision() {
return m_kernel.next_decision();
expr_ref next_cube() {
lookahead lh(m_kernel);
return lh.choose();
}
void collect_statistics(::statistics & st) const {
@ -379,8 +381,8 @@ namespace smt {
m_imp->get_guessed_literals(result);
}
expr* kernel::next_decision() {
return m_imp->next_decision();
expr_ref kernel::next_cube() {
return m_imp->next_cube();
}
std::ostream& kernel::display(std::ostream & out) const {