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fix #3653 cubing could convert internal variables to external

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2020-04-01 11:42:13 -07:00
parent 2572506efd
commit 9109a29a15
1 changed files with 1 additions and 0 deletions
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src/sat/sat_solver.cpp
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@ -1729,6 +1729,7 @@ namespace sat {
for (unsigned i = 0; !inconsistent() && i < num_lits; ++i) {
literal lit = lits[i];
set_external(lit.var());
SASSERT(is_external(lit.var()));
add_assumption(lit);
assign_scoped(lit);