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start switching to rooted monomials if there is no sign lemma

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Signed-off-by: Lev <levnach@hotmail.com>
This commit is contained in:
Lev 2018-11-25 16:12:26 -08:00 • committed by Lev Nachmanson
parent 2d144cd774
commit 667d1be8c3
2 changed files with 59 additions and 63 deletions
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10
src/util/lp/vars_equivalence.h
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@ -76,16 +76,16 @@ struct vars_equivalence {
// The map from the variables to m_equivs indices
// m_tree is a spanning tree of the graph of equivs represented by m_equivs
std::unordered_map<unsigned, unsigned> m_tree;
std::unordered_map<unsigned, unsigned> m_tree;
// If m_tree[v] == -1 then the variable is a root.
// if m_tree[v] is not equal to -1 then m_equivs[m_tree[v]] = (k, v) or (v, k), that k is the parent of v
vector<equiv> m_equivs; // all equivalences extracted from constraints
std::unordered_map<rational,unsigned_vector> m_vars_by_abs_values;
vector<equiv> m_equivs; // all equivalences extracted from constraints
std::unordered_map<rational, unsigned_vector> m_vars_by_abs_values;
std::unordered_map<vector<rational>,
unsigned_vector,
hash_vector> m_monomials_by_abs_vals;
hash_vector> m_monomials_by_abs_vals;
std::function<rational(lpvar)> m_vvr;
std::function<rational(lpvar)> m_vvr;
// constructor