cprover
satcheck_minisat2.h
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1 /*******************************************************************\
2 
3 Module:
4 
5 Author: Daniel Kroening, kroening@kroening.com
6 
7 \*******************************************************************/
8 
9 
10 #ifndef CPROVER_SOLVERS_SAT_SATCHECK_MINISAT2_H
11 #define CPROVER_SOLVERS_SAT_SATCHECK_MINISAT2_H
12 
13 #include "cnf.h"
14 
16 
17 // Select one: basic solver or with simplification.
18 // Note that the solver with simplifier isn't really robust
19 // when used incrementally, as variables may disappear
20 // unless set to 'frozen'.
21 
22 namespace Minisat // NOLINT(readability/namespace)
23 {
24 class Solver; // NOLINT(readability/identifiers)
25 class SimpSolver; // NOLINT(readability/identifiers)
26 }
27 
28 template <typename T>
30 {
31 public:
32  satcheck_minisat2_baset(T *, message_handlert &message_handler);
34 
35  tvt l_get(literalt a) const override final;
36 
37  void lcnf(const bvt &bv) override final;
38  void set_assignment(literalt a, bool value) override;
39 
40  // extra MiniSat feature: solve with assumptions
41  void set_assumptions(const bvt &_assumptions) override;
42 
43  // extra MiniSat feature: default branching decision
44  void set_polarity(literalt a, bool value);
45 
46  // extra MiniSat feature: interrupt running SAT query
47  void interrupt();
48 
49  // extra MiniSat feature: permit previously interrupted SAT query to continue
50  void clear_interrupt();
51 
52  bool is_in_conflict(literalt a) const override;
53  bool has_set_assumptions() const override final
54  {
55  return true;
56  }
57  bool has_is_in_conflict() const override final
58  {
59  return true;
60  }
61 
62  void set_time_limit_seconds(uint32_t lim) override
63  {
65  }
66 
67  void
68  with_solver_hardness(std::function<void(solver_hardnesst &)> handler) override
69  {
70  if(solver_hardness.has_value())
71  {
72  handler(solver_hardness.value());
73  }
74  }
75 
77  {
79  }
80 
81 protected:
82  resultt do_prop_solve() override;
83 
84  T *solver;
86 
87  void add_variables();
89 
91 };
92 
94  public satcheck_minisat2_baset<Minisat::Solver>
95 {
96 public:
97  explicit satcheck_minisat_no_simplifiert(message_handlert &message_handler);
98  const std::string solver_text() override;
99 };
100 
102  public satcheck_minisat2_baset<Minisat::SimpSolver>
103 {
104 public:
105  explicit satcheck_minisat_simplifiert(message_handlert &message_handler);
106  const std::string solver_text() override final;
107  void set_frozen(literalt a) override final;
108  bool is_eliminated(literalt a) const;
109 };
110 
111 #endif // CPROVER_SOLVERS_SAT_SATCHECK_MINISAT2_H
satcheck_minisat2_baset::set_polarity
void set_polarity(literalt a, bool value)
Definition: satcheck_minisat2.cpp:70
satcheck_minisat2_baset::assumptions
bvt assumptions
Definition: satcheck_minisat2.h:88
satcheck_minisat2_baset
Definition: satcheck_minisat2.h:30
resultt
resultt
The result of goto verifying.
Definition: properties.h:44
satcheck_minisat_simplifiert::solver_text
const std::string solver_text() override final
Definition: satcheck_minisat2.cpp:104
hardness_collector.h
Capability to collect the statistics of the complexity of individual solver queries.
satcheck_minisat2_baset::add_variables
void add_variables()
Definition: satcheck_minisat2.cpp:110
satcheck_minisat2_baset::l_get
tvt l_get(literalt a) const override final
Definition: satcheck_minisat2.cpp:42
satcheck_minisat2_baset::interrupt
void interrupt()
Definition: satcheck_minisat2.cpp:88
satcheck_minisat_simplifiert::satcheck_minisat_simplifiert
satcheck_minisat_simplifiert(message_handlert &message_handler)
Definition: satcheck_minisat2.cpp:344
bvt
std::vector< literalt > bvt
Definition: literal.h:201
satcheck_minisat2_baset::lcnf
void lcnf(const bvt &bv) override final
Definition: satcheck_minisat2.cpp:117
satcheck_minisat2_baset::solver
T * solver
Definition: satcheck_minisat2.h:84
satcheck_minisat2_baset::time_limit_seconds
uint32_t time_limit_seconds
Definition: satcheck_minisat2.h:85
satcheck_minisat2_baset::has_is_in_conflict
bool has_is_in_conflict() const override final
Definition: satcheck_minisat2.h:57
satcheck_minisat2_baset::clear_interrupt
void clear_interrupt()
Definition: satcheck_minisat2.cpp:94
satcheck_minisat2_baset::solver_hardness
optionalt< solver_hardnesst > solver_hardness
Definition: satcheck_minisat2.h:90
cnf_solvert
Definition: cnf.h:70
satcheck_minisat2_baset::do_prop_solve
resultt do_prop_solve() override
Definition: satcheck_minisat2.cpp:168
satcheck_minisat_simplifiert::set_frozen
void set_frozen(literalt a) override final
Definition: satcheck_minisat2.cpp:352
satcheck_minisat2_baset::is_in_conflict
bool is_in_conflict(literalt a) const override
Returns true if an assumption is in the final conflict.
Definition: satcheck_minisat2.cpp:310
satcheck_minisat_simplifiert::is_eliminated
bool is_eliminated(literalt a) const
Definition: satcheck_minisat2.cpp:370
satcheck_minisat2_baset::with_solver_hardness
void with_solver_hardness(std::function< void(solver_hardnesst &)> handler) override
Definition: satcheck_minisat2.h:68
satcheck_minisat_no_simplifiert
Definition: satcheck_minisat2.h:95
satcheck_minisat2_baset::satcheck_minisat2_baset
satcheck_minisat2_baset(T *, message_handlert &message_handler)
Definition: satcheck_minisat2.cpp:290
satcheck_minisat2_baset::has_set_assumptions
bool has_set_assumptions() const override final
Definition: satcheck_minisat2.h:53
satcheck_minisat2_baset::set_assumptions
void set_assumptions(const bvt &_assumptions) override
Definition: satcheck_minisat2.cpp:322
message_handlert
Definition: message.h:28
Minisat
Definition: satcheck_minisat2.h:23
optionalt
nonstd::optional< T > optionalt
Definition: optional.h:35
tvt
Definition: threeval.h:20
solver_hardnesst
A structure that facilitates collecting the complexity statistics from a decision procedure.
Definition: solver_hardness.h:45
satcheck_minisat_no_simplifiert::solver_text
const std::string solver_text() override
Definition: satcheck_minisat2.cpp:99
literalt
Definition: literal.h:26
satcheck_minisat2_baset::enable_hardness_collection
void enable_hardness_collection() override
Definition: satcheck_minisat2.h:76
satcheck_minisat_simplifiert
Definition: satcheck_minisat2.h:103
hardness_collectort
Definition: hardness_collector.h:23
satcheck_minisat2_baset::set_time_limit_seconds
void set_time_limit_seconds(uint32_t lim) override
Definition: satcheck_minisat2.h:62
satcheck_minisat_no_simplifiert::satcheck_minisat_no_simplifiert
satcheck_minisat_no_simplifiert(message_handlert &message_handler)
Definition: satcheck_minisat2.cpp:336
satcheck_minisat2_baset::set_assignment
void set_assignment(literalt a, bool value) override
Definition: satcheck_minisat2.cpp:267
cnf.h
CNF Generation, via Tseitin.
satcheck_minisat2_baset::~satcheck_minisat2_baset
virtual ~satcheck_minisat2_baset()