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throttle is_compatible to check variables at most once

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-02-23 08:45:22 -08:00
parent 7b4f1ed530
commit f2e712b0d6
1 changed files with 10 additions and 2 deletions
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10
src/tactic/core/solve_eqs_tactic.cpp
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@ -65,7 +65,8 @@ class solve_eqs_tactic : public tactic {
m_a_util(m), m_a_util(m),
m_num_steps(0), m_num_steps(0),
m_num_eliminated_vars(0), m_num_eliminated_vars(0),
m_marked_candidates(m) { m_marked_candidates(m),
m_var_trail(m) {
updt_params(p); updt_params(p);
if (m_r == nullptr) if (m_r == nullptr)
m_r = mk_default_expr_replacer(m, true); m_r = mk_default_expr_replacer(m, true);
@ -524,7 +525,14 @@ class solve_eqs_tactic : public tactic {
} }
} }
expr_mark m_compatible_tried;
expr_ref_vector m_var_trail;
bool is_compatible(goal const& g, unsigned idx, vector<nnf_context> const & path, expr* v, expr* eq) { bool is_compatible(goal const& g, unsigned idx, vector<nnf_context> const & path, expr* v, expr* eq) {
if (m_compatible_tried.is_marked(v))
return false;
m_compatible_tried.mark(v);
m_var_trail.push_back(v);
expr_mark occ; expr_mark occ;
svector<lbool> cache; svector<lbool> cache;
mark_occurs(occ, g, v); mark_occurs(occ, g, v);