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adding dump facility for cancelation #2095, easing dimacs in/out

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-24 12:21:23 -08:00
parent f7746e2284
commit 498864c582
28 changed files with 653 additions and 518 deletions
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16
src/solver/solver.h
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@ -44,8 +44,9 @@ public:
- results based on check_sat_result API
*/
class solver : public check_sat_result {
params_ref m_params;
bool m_enforce_model_conversion;
params_ref m_params;
bool m_enforce_model_conversion;
symbol m_cancel_backup_file;
public:
solver(): m_enforce_model_conversion(false) {}
~solver() override {}
@ -140,7 +141,8 @@ public:
If it is unsatisfiable, and unsat-core generation is enabled. Then, the unsat-core is a subset of these assumptions.
*/
virtual lbool check_sat(unsigned num_assumptions, expr * const * assumptions) = 0;
lbool check_sat(unsigned num_assumptions, expr * const * assumptions);
lbool check_sat(expr_ref_vector const& asms) { return check_sat(asms.size(), asms.c_ptr()); }
@ -227,6 +229,11 @@ public:
*/
virtual std::ostream& display(std::ostream & out, unsigned n = 0, expr* const* assumptions = nullptr) const;
/**
\brief Display the content of this solver in DIMACS format
*/
std::ostream& display_dimacs(std::ostream & out) const;
/**
\brief expose model converter when solver produces partially reduced set of assertions.
*/
@ -249,14 +256,17 @@ public:
void disable_pop() { m_nopop = true; }
};
virtual lbool check_sat_core(unsigned num_assumptions, expr * const * assumptions) = 0;
protected:
virtual lbool get_consequences_core(expr_ref_vector const& asms, expr_ref_vector const& vars, expr_ref_vector& consequences);
void dump_state(unsigned sz, expr* const* assumptions);
bool is_literal(ast_manager& m, expr* e);
};
typedef ref<solver> solver_ref;