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Merge remote-tracking branch 'Z3Prover/polysat' into polysat

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This commit is contained in:
Clemens Eisenhofer 2022-12-25 12:41:39 +01:00
commit 74ec28201e
41 changed files with 2206 additions and 661 deletions
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26
src/math/polysat/op_constraint.cpp
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@ -25,8 +25,8 @@ Additional possible functionality on constraints:
namespace polysat {
op_constraint::op_constraint(constraint_manager& m, code c, pdd const& p, pdd const& q, pdd const& r) :
constraint(m, ckind_t::op_t), m_op(c), m_p(p), m_q(q), m_r(r) {
op_constraint::op_constraint(code c, pdd const& p, pdd const& q, pdd const& r) :
constraint(ckind_t::op_t), m_op(c), m_p(p), m_q(q), m_r(r) {
m_vars.append(p.free_vars());
for (auto v : q.free_vars())
if (!m_vars.contains(v))
@ -570,20 +570,26 @@ namespace polysat {
}
return true;
}
void op_constraint::add_to_univariate_solver(solver& s, univariate_solver& us, unsigned dep, bool is_positive) const {
auto p_coeff = s.subst(p()).get_univariate_coefficients();
auto q_coeff = s.subst(q()).get_univariate_coefficients();
auto r_coeff = s.subst(r()).get_univariate_coefficients();
void op_constraint::add_to_univariate_solver(pvar v, solver& s, univariate_solver& us, unsigned dep, bool is_positive) const {
pdd pv = s.subst(p());
if (!pv.is_univariate_in(v))
return;
pdd qv = s.subst(q());
if (!qv.is_univariate_in(v))
return;
pdd rv = s.subst(r());
if (!rv.is_univariate_in(v))
return;
switch (m_op) {
case code::lshr_op:
us.add_lshr(p_coeff, q_coeff, r_coeff, !is_positive, dep);
us.add_lshr(pv.get_univariate_coefficients(), qv.get_univariate_coefficients(), rv.get_univariate_coefficients(), !is_positive, dep);
break;
case code::shl_op:
us.add_shl(p_coeff, q_coeff, r_coeff, !is_positive, dep);
us.add_shl(pv.get_univariate_coefficients(), qv.get_univariate_coefficients(), rv.get_univariate_coefficients(), !is_positive, dep);
break;
case code::and_op:
us.add_and(p_coeff, q_coeff, r_coeff, !is_positive, dep);
us.add_and(pv.get_univariate_coefficients(), qv.get_univariate_coefficients(), rv.get_univariate_coefficients(), !is_positive, dep);
break;
default:
NOT_IMPLEMENTED_YET();