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cleanup bit2bool from models #3847

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-08 03:05:11 -07:00
parent 5c9fd90031
commit 8e6bb30c82
3 changed files with 15 additions and 22 deletions
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6
src/model/model.cpp
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@ -22,6 +22,7 @@ Revision History:
#include "ast/rewriter/var_subst.h"
#include "ast/rewriter/th_rewriter.h"
#include "ast/array_decl_plugin.h"
#include "ast/bv_decl_plugin.h"
#include "ast/well_sorted.h"
#include "ast/used_symbols.h"
#include "ast/for_each_expr.h"
@ -410,6 +411,7 @@ expr_ref model::cleanup_expr(top_sort& ts, expr* e, unsigned current_partition)
ptr_buffer<expr> args;
todo.push_back(e);
array_util autil(m);
bv_util bv(m);
func_interp* fi = nullptr;
unsigned pid = 0;
expr_ref new_t(m);
@ -457,6 +459,10 @@ expr_ref model::cleanup_expr(top_sort& ts, expr* e, unsigned current_partition)
var_subst vs(m, false);
new_t = vs(fi->get_interp(), args.size(), args.c_ptr());
}
else if (bv.is_bit2bool(t)) {
unsigned idx = f->get_parameter(0).get_int();
new_t = m.mk_eq(bv.mk_extract(idx, idx, args[0]), bv.mk_numeral(1, 1));
}
#if 0
else if (is_uninterp_const(a) && !get_const_interp(f)) {
new_t = get_some_value(f->get_range());