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working on incremtal PB theory

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-01-13 10:12:45 -08:00
parent 1f7c994e43
commit 236b2d2ff3
12 changed files with 1419 additions and 912 deletions
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15
src/ast/rewriter/pb_rewriter.cpp
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@ -102,19 +102,21 @@ br_status pb_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * cons
break;
case OP_AT_LEAST_K:
case OP_PB_GE:
case OP_PB_EQ:
break;
default:
UNREACHABLE();
return BR_FAILED;
}
bool is_eq = f->get_decl_kind() == OP_PB_EQ;
pb_ast_rewriter_util pbu(m);
pb_rewriter_util<pb_ast_rewriter_util> util(pbu);
util.unique(vec, k);
lbool is_sat = util.normalize(vec, k);
util.prune(vec, k);
util.unique(vec, k, is_eq);
lbool is_sat = util.normalize(vec, k, is_eq);
util.prune(vec, k, is_eq);
switch (is_sat) {
case l_true:
result = m.mk_true();
@ -129,7 +131,12 @@ br_status pb_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * cons
m_args.push_back(vec[i].first);
m_coeffs.push_back(vec[i].second);
}
result = m_util.mk_ge(vec.size(), m_coeffs.c_ptr(), m_args.c_ptr(), k);
if (is_eq) {
result = m_util.mk_eq(vec.size(), m_coeffs.c_ptr(), m_args.c_ptr(), k);
}
else {
result = m_util.mk_ge(vec.size(), m_coeffs.c_ptr(), m_args.c_ptr(), k);
}
break;
}
TRACE("pb",