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gcd reduce and use c().val for sign constraints

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This commit is contained in:
Nikolaj Bjorner 2025-10-01 18:42:34 -07:00
parent 538480b4f8
commit 5846570012
3 changed files with 157 additions and 81 deletions
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11
src/math/lp/nla_stellensatz.h
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@ -106,6 +106,7 @@ namespace nla {
bool is_mon_var(lpvar v) const { return m_mon2vars.contains(v); }
lpvar find_max_lex_monomial(lp::lar_term const &t) const;
bool is_lex_greater(svector<lpvar> const &a, svector<lpvar> const &b) const;
bool is_subset(svector<lpvar> const &a, svector<lpvar> const &b) const;
unsigned m_max_monomial_degree = 0;
@ -132,16 +133,20 @@ namespace nla {
using term_offset = std::pair<lp::lar_term, rational>; // term and its offset
lpvar add_monomial(svector<lp::lpvar> const& vars);
lpvar add_term(term_offset &t);
lp::constraint_index add_ineq(justification const& just, lp::lar_term const &t, lp::lconstraint_kind k, rational const &rhs);
void gcd_normalize(vector<std::pair<rational, lpvar>> &t, lp::lconstraint_kind k, rational &rhs);
lp::constraint_index add_ineq(justification const& just, lp::lar_term &t, lp::lconstraint_kind k, rational const &rhs);
lp::constraint_index add_ineq(justification const &just, lpvar j, lp::lconstraint_kind k,
rational const &rhs);
bool is_int(svector<lp::lpvar> const& vars) const;
rational value(lp::lar_term const &t) const;
rational value(svector<lpvar> const &prod) const;
rational cvalue(lp::lar_term const &t) const;
rational cvalue(svector<lpvar> const &prod) const;
rational mvalue(svector<lpvar> const &prod) const;
lpvar add_var(bool is_int);
lbool add_bounds(svector<lpvar> const &vars, vector<bound_assumption> &bounds);
void saturate_constraints();
void saturate_constraints2();
lp::constraint_index saturate_multiply(lp::constraint_index con_id, lpvar j1, lpvar j2);
void resolve(lpvar j, lp::constraint_index ci1, lp::constraint_index ci2);