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better proof mining for Farkas

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-10-12 17:12:43 -07:00
parent 89ca9aa5bd
commit 2087c59084
11 changed files with 227 additions and 103 deletions
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6
lib/pdr_prop_solver.h
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@ -53,14 +53,16 @@ namespace pdr {
void push_level_atoms(unsigned level, expr_ref_vector & tgt) const;
void ensure_level(unsigned lvl);
class safe_assumptions;
lbool check_safe_assumptions(
const expr_ref_vector & atoms,
safe_assumptions& assumptions,
expr_ref_vector const& atoms,
expr_ref_vector * core,
model_ref * mdl,
bool& assumes_level);
class safe_assumptions;
public:
prop_solver(pdr::manager& pm, symbol const& name);