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mbqi

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-10-25 10:29:02 -07:00
parent 34e0e26e3d
commit 1ee2ba2a9b
17 changed files with 132 additions and 80 deletions
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9
src/sat/smt/arith_solver.cpp
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@ -583,7 +583,7 @@ namespace arith {
}
void solver::push_core() {
TRACE("arith", tout << "push\n";);
TRACE("arith_verbose", tout << "push\n";);
m_scopes.push_back(scope());
scope& sc = m_scopes.back();
sc.m_bounds_lim = m_bounds_trail.size();
@ -596,11 +596,11 @@ namespace arith {
if (m_nla)
m_nla->push();
th_euf_solver::push_core();
}
void solver::pop_core(unsigned num_scopes) {
TRACE("arith", tout << "pop " << num_scopes << "\n";);
th_euf_solver::pop_core(num_scopes);
unsigned old_size = m_scopes.size() - num_scopes;
del_bounds(m_scopes[old_size].m_bounds_lim);
m_idiv_terms.shrink(m_scopes[old_size].m_idiv_lim);
@ -613,7 +613,8 @@ namespace arith {
m_new_bounds.reset();
if (m_nla)
m_nla->pop(num_scopes);
TRACE("arith", tout << "num scopes: " << num_scopes << " new scope level: " << m_scopes.size() << "\n";);
TRACE("arith_verbose", tout << "num scopes: " << num_scopes << " new scope level: " << m_scopes.size() << "\n";);
th_euf_solver::pop_core(num_scopes);
}
void solver::del_bounds(unsigned old_size) {
@ -964,7 +965,7 @@ namespace arith {
return sat::check_result::CR_CONTINUE;
case l_undef:
TRACE("arith", tout << "check feasible is undef\n";);
return m.inc() ? sat::check_result::CR_CONTINUE : sat::check_result::CR_GIVEUP;
return sat::check_result::CR_CONTINUE;
case l_true:
break;
default: