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add get-interpolant command

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-01-19 12:12:04 -06:00
parent d3b105f9f8
commit 9179deb746
5 changed files with 127 additions and 32 deletions
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33
src/qe/qe_mbi.cpp
View file

@ -29,6 +29,7 @@ Notes:
--*/
#include "ast/ast_util.h"
#include "ast/ast_pp.h"
#include "ast/for_each_expr.h"
#include "ast/rewriter/expr_safe_replace.h"
#include "ast/rewriter/bool_rewriter.h"
@ -43,6 +44,38 @@ Notes:
namespace qe {
void mbi_plugin::set_shared(expr* a, expr* b) {
TRACE("qe", tout << mk_pp(a, m) << " " << mk_pp(b, m) << "\n";);
struct fun_proc {
obj_hashtable<func_decl> s;
void operator()(app* a) { if (is_uninterp(a)) s.insert(a->get_decl()); }
void operator()(expr*) {}
};
fun_proc symbols_in_a;
expr_fast_mark1 marks;
quick_for_each_expr(symbols_in_a, marks, a);
marks.reset();
m_shared_trail.reset();
m_shared.reset();
m_is_shared.reset();
struct intersect_proc {
mbi_plugin& p;
obj_hashtable<func_decl>& sA;
intersect_proc(mbi_plugin& p, obj_hashtable<func_decl>& sA):p(p), sA(sA) {}
void operator()(app* a) {
func_decl* f = a->get_decl();
if (sA.contains(f) && !p.m_shared.contains(f)) {
p.m_shared_trail.push_back(f);
p.m_shared.insert(f);
}
}
void operator()(expr*) {}
};
intersect_proc symbols_in_b(*this, symbols_in_a.s);
quick_for_each_expr(symbols_in_b, marks, b);
}
lbool mbi_plugin::check(expr_ref_vector& lits, model_ref& mdl) {
while (true) {
switch ((*this)(lits, mdl)) {

3
src/qe/qe_mbi.h
View file

@ -21,6 +21,7 @@ Revision History:
#pragma once
#include "qe/qe_arith.h"
#include "util/lbool.h"
namespace qe {
enum mbi_result {
@ -54,6 +55,8 @@ namespace qe {
for (auto* f : vars) m_shared.insert(f);
}
void set_shared(expr* a, expr* b);
/**
* Set representative (shared) expression finder.
*/