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aig-simplifier: add root tracking, make incremental, split files

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-01-09 08:56:21 -08:00
parent 192c6e39c2
commit a18d2a606b
7 changed files with 146 additions and 20 deletions
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1
src/sat/sat_elim_eqs.cpp
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@ -230,6 +230,7 @@ namespace sat {
literal l(v, false);
literal r = roots[v];
SASSERT(v != r.var());
if (m_solver.m_aig_simplifier) m_solver.m_aig_simplifier->set_root(v, r);
bool set_root = m_solver.set_root(l, r);
bool root_ok = !m_solver.is_external(v) || set_root;
if (m_solver.is_assumption(v) || (m_solver.is_external(v) && (m_solver.is_incremental() || !root_ok))) {