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optimize model pruning

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-10-13 20:09:12 -07:00
parent 95fbf073f8
commit 16cfb3895d
2 changed files with 5 additions and 4 deletions
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2
lib/pdr_farkas_learner.cpp
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@ -514,7 +514,7 @@ namespace pdr {
proof_ref pr(root, m);
proof_utils::reduce_hypotheses(pr);
IF_VERBOSE(2, verbose_stream() << "Elim Hyps:\n" << mk_ismt2_pp(pr, m) << "\n";);
IF_VERBOSE(3, verbose_stream() << "Elim Hyps:\n" << mk_ismt2_pp(pr, m) << "\n";);
proof_utils::permute_unit_resolution(pr);
ptr_vector<expr_set> hyprefs;

7
lib/pdr_generalizers.cpp
View file

@ -105,14 +105,14 @@ namespace pdr {
lit = core[i].get();
core[i] = m.mk_true();
state = m.mk_not(n.pt().get_pdr_manager().mk_and(core));
bool assumes_level = false;
if (n.pt().is_invariant(n.level(), state, true, assumes_level, 0)) {
bool uses_level_tmp = false;
if (n.pt().is_invariant(n.level(), state, true, uses_level_tmp, 0)) {
num_failures = 0;
core[i] = core.back();
core.pop_back();
TRACE("pdr", tout << "Remove: " << mk_pp(lit, m) << "\n";);
++num_changes;
uses_level = assumes_level;
uses_level = uses_level_tmp;
}
else {
core[i] = lit;
@ -120,6 +120,7 @@ namespace pdr {
++i;
}
}
IF_VERBOSE(1, verbose_stream() << "changes: " << num_changes << " size: " << core.size() << "\n";);
TRACE("pdr", tout << "changes: " << num_changes << " index: " << i << " size: " << core.size() << "\n";);
}