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c0bdc7cdd6
allow using sls engine (for bit-vectors) with the new core. Examples z3 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=0 /st C:\QF_BV_SAT\bench_10.smt2 z3 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=2 /st C:\QF_BV_SAT\bench_10.smt2 z3 C:\QF_BV_SAT\bench_11100.smt2 sat.smt=true tactic.default_tactic=smt /v:1 smt.sls.enable=true smt.bv.solver=2 /st
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
/*++
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Copyright (c) 2020 Microsoft Corporation
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Module Name:
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sls_solver
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Abstract:
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Interface to Concurrent SLS solver
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Author:
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Nikolaj Bjorner (nbjorner) 2024-02-21
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--*/
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#pragma once
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#include <thread>
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#include "util/rlimit.h"
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#include "ast/sls/bv_sls.h"
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#include "sat/smt/sat_th.h"
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namespace euf {
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class solver;
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}
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namespace sls {
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class solver : public euf::th_euf_solver {
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std::atomic<lbool> m_result;
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std::atomic<bool> m_completed, m_has_units;
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std::thread m_thread;
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std::mutex m_mutex;
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scoped_ptr<ast_manager> m_m;
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scoped_ptr<bv::sls> m_bvsls;
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model_ref m_model;
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unsigned m_trail_lim = 0;
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expr_ref_vector m_units;
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statistics m_st;
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void run_local_search();
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void init_local_search();
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void sample_local_search();
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bool is_unit(expr*);
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public:
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solver(euf::solver& ctx);
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~solver();
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void simplify() override;
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void init_search() override;
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void push_core() override;
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void pop_core(unsigned n) override;
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sat::literal internalize(expr* e, bool sign, bool root) override { UNREACHABLE(); return sat::null_literal; }
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void internalize(expr* e) override { UNREACHABLE(); }
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th_solver* clone(euf::solver& ctx) override { return alloc(solver, ctx); }
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void collect_statistics(statistics& st) const override { st.copy(m_st); }
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model_ref get_model() { return m_model; }
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void finalize() override;
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bool unit_propagate() override;
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void get_antecedents(sat::literal l, sat::ext_justification_idx idx, sat::literal_vector & r, bool probing) override { UNREACHABLE(); }
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sat::check_result check() override;
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std::ostream & display(std::ostream & out) const override { return out; }
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std::ostream & display_justification(std::ostream & out, sat::ext_justification_idx idx) const override { UNREACHABLE(); return out; }
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std::ostream & display_constraint(std::ostream & out, sat::ext_constraint_idx idx) const override { UNREACHABLE(); return out; }
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};
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}
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