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improve equality solving in qe-lite

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-02-12 10:54:00 -08:00
parent 552b386a29
commit a594597906
4 changed files with 97 additions and 58 deletions
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src/math/simplex/simplex.h
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@ -129,6 +129,8 @@ namespace simplex {
unsigned get_num_vars() const { return m_vars.size(); }
row_iterator row_begin(row const& r) { return M.row_begin(r); }
row_iterator row_end(row const& r) { return M.row_end(r); }
private:
@ -136,7 +138,6 @@ namespace simplex {
pivot_strategy_t pivot_strategy();
var_t select_smallest_var() { return m_to_patch.empty()?null_var:m_to_patch.erase_min(); }
var_t select_error_var(bool least);
// row get_infeasible_row() { }
void check_blands_rule(var_t v, unsigned& num_repeated);
bool make_var_feasible(var_t x_i);
void update_and_pivot(var_t x_i, var_t x_j, numeral const& a_ij, eps_numeral const& new_value);