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debugging #1233

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-11-21 08:16:41 -08:00
parent 33e8113c9e
commit c5f231acdf
4 changed files with 43 additions and 29 deletions
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23
src/smt/theory_seq.cpp
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@ -1298,6 +1298,21 @@ void theory_seq::propagate_eq(dependency* dep, enode* n1, enode* n2) {
display_deps(tout, dep);
);
#if 0
//std::cout << mk_pp(n1->get_owner(), m) << " = " << mk_pp(n2->get_owner(), m) << "\n";
//display_deps(std::cout, dep);
for (literal lit : lits) {
SASSERT(ctx.get_assignment(lit) == l_true);
}
for (enode_pair p : eqs) {
if (p.first->get_root() != p.second->get_root()) {
std::cout << mk_pp(p.first->get_owner(), m) << " " << mk_pp(p.second->get_owner(), m) << "\n";
}
SASSERT(p.first->get_root() == p.second->get_root());
}
#endif
justification* js = ctx.mk_justification(
ext_theory_eq_propagation_justification(
get_id(), ctx.get_region(), lits.size(), lits.c_ptr(), eqs.size(), eqs.c_ptr(), n1, n2));
@ -3027,6 +3042,8 @@ expr_ref theory_seq::expand1(expr* e0, dependency*& eqs) {
enode* n1 = ctx.get_enode(num);
enode* n2 = ctx.get_enode(e1);
res = m_util.str.mk_string(symbol(val.to_string().c_str()));
#if 1
// TBD remove this: using roots is unsound for propagation.
if (n1->get_root() == n2->get_root()) {
result = res;
deps = m_dm.mk_join(deps, m_dm.mk_leaf(assumption(n1, n2)));
@ -3037,6 +3054,12 @@ expr_ref theory_seq::expand1(expr* e0, dependency*& eqs) {
add_axiom(mk_eq(num, e1, false), ~mk_eq(e, res, false));
result = e;
}
#else
TRACE("seq", tout << "add axiom\n";);
add_axiom(~mk_eq(num, e1, false), mk_eq(e, res, false));
add_axiom(mk_eq(num, e1, false), ~mk_eq(e, res, false));
result = e;
#endif
}
else {
result = e;