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Revert "Parallel solving (#7775)" (#7777)

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This reverts commit c8e866f568.
This commit is contained in:
Nikolaj Bjorner 2025-08-14 18:16:35 -07:00 • committed by GitHub
parent 1e7832a391
commit e24a5b6624
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9 changed files with 224 additions and 1054 deletions
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24
src/smt/smt_context.h
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@ -50,8 +50,6 @@ Revision History:
#include "model/model.h"
#include "solver/progress_callback.h"
#include "solver/assertions/asserted_formulas.h"
#include "smt/priority_queue.h"
#include "util/dlist.h"
#include <tuple>
// there is a significant space overhead with allocating 1000+ contexts in
@ -191,17 +189,6 @@ namespace smt {
unsigned_vector m_lit_occs; //!< occurrence count of literals
svector<bool_var_data> m_bdata; //!< mapping bool_var -> data
svector<double> m_activity;
updatable_priority_queue::priority_queue<bool_var, double> m_pq_scores;
struct lit_node : dll_base<lit_node> {
literal lit;
lit_node(literal l) : lit(l) { init(this); }
};
lit_node* m_dll_lits;
// svector<std::array<double, 2>> m_lit_scores;
svector<double> m_lit_scores[2];
clause_vector m_aux_clauses;
clause_vector m_lemmas;
vector<clause_vector> m_clauses_to_reinit;
@ -946,17 +933,6 @@ namespace smt {
ast_pp_util m_lemma_visitor;
void dump_lemma(unsigned n, literal const* lits);
void dump_axiom(unsigned n, literal const* lits);
void add_scores(unsigned n, literal const* lits);
void reset_scores() {
for (auto& e : m_lit_scores[0])
e = 0;
for (auto& e : m_lit_scores[1])
e = 0;
m_pq_scores.clear(); // Clear the priority queue heap as well
}
double get_score(literal l) const {
return m_lit_scores[l.sign()][l.var()];
}
public:
void ensure_internalized(expr* e);