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working on pdr

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-10-14 00:24:17 -07:00
parent 16cfb3895d
commit 990b93c2fd
6 changed files with 64 additions and 50 deletions
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6
lib/pdr_generalizers.cpp
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@ -100,7 +100,7 @@ namespace pdr {
ast_manager& m = core.get_manager();
TRACE("pdr", for (unsigned i = 0; i < core.size(); ++i) { tout << mk_pp(core[i].get(), m) << "\n"; } "\n";);
unsigned num_failures = 0, i = 0, num_changes = 0;
while (i < core.size() && (!m_failure_limit || num_failures <= m_failure_limit)) {
while (i < core.size() && 1 < core.size() && (!m_failure_limit || num_failures <= m_failure_limit)) {
expr_ref lit(m), state(m);
lit = core[i].get();
core[i] = m.mk_true();
@ -111,16 +111,18 @@ namespace pdr {
core[i] = core.back();
core.pop_back();
TRACE("pdr", tout << "Remove: " << mk_pp(lit, m) << "\n";);
IF_VERBOSE(3, verbose_stream() << "remove: " << mk_pp(lit, m) << "\n";);
++num_changes;
uses_level = uses_level_tmp;
}
else {
IF_VERBOSE(3, verbose_stream() << "keep: " << mk_pp(lit, m) << "\n";);
core[i] = lit;
++num_failures;
++i;
}
}
IF_VERBOSE(1, verbose_stream() << "changes: " << num_changes << " size: " << core.size() << "\n";);
IF_VERBOSE(2, verbose_stream() << "changes: " << num_changes << " size: " << core.size() << "\n";);
TRACE("pdr", tout << "changes: " << num_changes << " index: " << i << " size: " << core.size() << "\n";);
}