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52 lines
892 B
C++
52 lines
892 B
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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sat_cleaner.h
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Abstract:
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Eliminate satisfied clauses, and literals assigned to false.
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Author:
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Leonardo de Moura (leonardo) 2011-05-24.
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Revision History:
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--*/
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#pragma once
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#include "sat/sat_types.h"
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#include "util/statistics.h"
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namespace sat {
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class cleaner {
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struct report;
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solver & s;
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unsigned m_last_num_units;
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int m_cleanup_counter;
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// stats
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unsigned m_elim_clauses;
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unsigned m_elim_literals;
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void cleanup_watches();
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void cleanup_clauses(clause_vector & cs);
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public:
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cleaner(solver & s);
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bool is_clean() const;
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bool operator()(bool force = false);
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void collect_statistics(statistics & st) const;
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void reset_statistics();
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void dec() { m_cleanup_counter--; }
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};
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};
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