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First step towards explaining single bits

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This commit is contained in:
Clemens Eisenhofer 2022-12-19 12:27:37 +01:00
parent d5bc4b84a7
commit ec06027515
8 changed files with 418 additions and 6 deletions
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10
src/math/polysat/op_constraint.h
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@ -31,9 +31,9 @@ namespace polysat {
friend class constraint_manager;
code m_op;
pdd m_p;
pdd m_q;
pdd m_r;
pdd m_p; // operand1
pdd m_q; // operand2
pdd m_r; // result
op_constraint(constraint_manager& m, code c, pdd const& p, pdd const& q, pdd const& r);
lbool eval(pdd const& p, pdd const& q, pdd const& r) const;
@ -41,12 +41,15 @@ namespace polysat {
clause_ref lemma_lshr(solver& s, assignment const& a);
static lbool eval_lshr(pdd const& p, pdd const& q, pdd const& r);
bool propagate_bits_lshr(solver& s, bool is_positive);
clause_ref lemma_shl(solver& s, assignment const& a);
static lbool eval_shl(pdd const& p, pdd const& q, pdd const& r);
bool propagate_bits_shl(solver& s, bool is_positive);
clause_ref lemma_and(solver& s, assignment const& a);
static lbool eval_and(pdd const& p, pdd const& q, pdd const& r);
bool propagate_bits_and(solver& s, bool is_positive);
std::ostream& display(std::ostream& out, char const* eq) const;
@ -64,6 +67,7 @@ namespace polysat {
lbool eval() const override;
lbool eval(assignment const& a) const override;
void narrow(solver& s, bool is_positive, bool first) override;
bool propagate_bits(solver& s, bool is_positive) override;
virtual clause_ref produce_lemma(solver& s, assignment const& a, bool is_positive) override;
unsigned hash() const override;
bool operator==(constraint const& other) const override;