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setting partial equivalence priority lower so that it doesn't intefere with inlining (partial fix to the fact that inlining will remove such implicit relations). Using short-circuit negation in qe to avoid redundant double negations in intermediary results

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-02-21 10:31:13 -08:00
parent d4f41c0420
commit 8c538fd3f0
3 changed files with 11 additions and 16 deletions
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2
src/muz/rel/dl_mk_partial_equiv.h
View file

@ -30,7 +30,7 @@ namespace datalog {
ast_manager & m;
context & m_context;
public:
mk_partial_equivalence_transformer(context & ctx, unsigned priority=45000)
mk_partial_equivalence_transformer(context & ctx, unsigned priority=30000)
: plugin(priority),
m(ctx.get_manager()),
m_context(ctx) {}

2
src/muz/rel/rel_context.cpp
View file

@ -307,8 +307,8 @@ namespace datalog {
if (m_context.similarity_compressor()) {
transf.register_plugin(alloc(mk_similarity_compressor, m_context));
}
transf.register_plugin(alloc(mk_partial_equivalence_transformer, m_context));
transf.register_plugin(alloc(mk_rule_inliner, m_context));
transf.register_plugin(alloc(mk_partial_equivalence_transformer, m_context));
transf.register_plugin(alloc(mk_interp_tail_simplifier, m_context));
transf.register_plugin(alloc(mk_separate_negated_tails, m_context));

23
src/qe/qe.cpp
View file

@ -596,7 +596,7 @@ namespace qe {
p = m_pols.back();
if (!m_is_relevant(e)) {
pop();
insert(e, p, p?e:m.mk_not(e));
insert(e, p, p?e:mk_not(m, e));
continue;
}
if (!is_app(e)) {
@ -634,7 +634,7 @@ namespace qe {
}
else {
pop();
insert(e, p, p?e:m.mk_not(e));
insert(e, p, p?e:mk_not(m, e));
}
}
@ -1208,7 +1208,7 @@ namespace qe {
}
bool_rewriter(m).mk_or(fmls.size(), fmls.c_ptr(), fml);
fml = m.mk_not(m.mk_iff(q, fml));
fml = mk_not(m, m.mk_iff(q, fml));
ast_smt_pp pp(m);
out << "; eliminate " << mk_pp(m_var, m) << "\n";
out << "(push)\n";
@ -1303,12 +1303,7 @@ namespace qe {
}
}
TRACE("qe_verbose", tout << "No plugin for " << mk_ismt2_pp(e, m) << "\n";);
if (p || m.is_not(e, e)) {
result = e;
}
else {
result = m.mk_not(e);
}
result = p?e:mk_not(m, e);
}
void i_solver_context::mk_atom_fn::operator()(expr* e, bool p, expr_ref& result) {
@ -1436,7 +1431,7 @@ namespace qe {
m_fml = f;
f = m_subfml;
m_solver.assert_expr(f);
}
}
m_root.init(f);
TRACE("qe",
for (unsigned i = 0; i < num_vars; ++i) tout << mk_ismt2_pp(vars[i], m) << "\n";
@ -1591,7 +1586,7 @@ namespace qe {
}
m_literals.reset();
while (node) {
m_literals.push_back(m.mk_not(node->assignment()));
m_literals.push_back(mk_not(m, node->assignment()));
node = node->parent();
}
add_literal(l1);
@ -1865,7 +1860,7 @@ namespace qe {
//
app* mk_eq_value(app* b, rational const& vl) {
if (m.is_bool(b)) {
if (vl.is_zero()) return m.mk_not(b);
if (vl.is_zero()) return to_app(mk_not(m, b));
if (vl.is_one()) return b;
UNREACHABLE();
}
@ -2604,12 +2599,12 @@ namespace qe {
TRACE("qe", tout << "variables extracted" << mk_pp(result, m) << "\n";);
if (old_q->is_forall()) {
result = m.mk_not(result);
result = mk_not(m, result);
}
m_ctx.solve(result, vars);
if (old_q->is_forall()) {
expr* e = 0;
result = m.is_not(result, e)?e:m.mk_not(result);
result = m.is_not(result, e)?e:mk_not(m, result);
}
var_shifter shift(m);
shift(result, vars.size(), result);