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fix regression for simplifying tails with quantifiers, add some more handling for quantified tails

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-11-30 15:58:06 -08:00
parent 692593baaa
commit 2d1a6bf270
10 changed files with 888 additions and 627 deletions
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5
src/ast/ast.cpp
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@ -2637,12 +2637,13 @@ proof * ast_manager::mk_unit_resolution(unsigned num_proofs, proof * const * pro
ptr_buffer<expr> args;
args.append(num_proofs, (expr**) proofs);
expr * fact;
expr const * f1 = get_fact(proofs[0]);
expr const * f2 = get_fact(proofs[1]);
expr * f1 = get_fact(proofs[0]);
expr * f2 = get_fact(proofs[1]);
if (num_proofs == 2 && is_complement(f1, f2)) {
fact = mk_false();
}
else {
CTRACE("mk_unit_resolution_bug", !is_or(f1), tout << mk_pp(f1, *this) << " " << mk_pp(f2, *this) << "\n";);
SASSERT(is_or(f1));
ptr_buffer<expr> new_lits;
app const * cls = to_app(f1);