Struct batsat::core::Solver

pub struct Solver<Cb: Callbacks> { /* private fields */ }

The main solver structure

A Solver object contains the whole state of the SAT solver, including a clause allocator, literals, clauses, and statistics.

It is parametrized by Callbacks

Implementations

impl<Cb: Callbacks> Solver<Cb>

pub fn new(opts: SolverOpts, cb: Cb) -> Self

Create a new solver with the given options

pub fn num_learnts(&self) -> u32

pub fn cb_mut(&mut self) -> &mut Cb

Temporary access to the callbacks

pub fn cb(&self) -> &Cb

Temporary access to the callbacks

pub fn dimacs_model(&self) -> SolverPrintDimacs<'_, Cb>

pub fn dimacs_proof(&self) -> SolverPrintDimacs<'_, Cb>

pub fn interrupt_async(&self)

Interrupt search asynchronously

Trait Implementations

impl<Cb: Debug + Callbacks> Debug for Solver<Cb>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Cb: Callbacks + Default> Default for Solver<Cb>

fn default() -> Self

Returns the “default value” for a type.

impl<Cb: Callbacks> SolverInterface for Solver<Cb>

fn new_var(&mut self, upol: lbool, dvar: bool) -> Var

Creates a new SAT variable in the solver. If ‘decision’ is cleared, variable will not be used as a decision variable (NOTE! This has effects on the meaning of a SATISFIABLE result).

fn new_var_default(&mut self) -> Var

Create a new variable with the default polarity

fn add_clause_reuse(&mut self, clause: &mut Vec<Lit>) -> bool

Add a clause to the solver. Returns false if the solver is in an UNSAT state.

fn solve_limited(&mut self, assumps: &[Lit]) -> lbool

Search for a model that respects a given set of assumptions (With resource constraints).

fn simplify(&mut self) -> bool

Simplify the clause database according to the current top-level assigment. Currently, the only thing done here is the removal of satisfied clauses, but more things can be put here.

fn value_var(&self, v: Var) -> lbool

Query model for var

fn value_lit(&self, v: Lit) -> lbool

Query model for lit

fn get_model(&self) -> &[lbool]

Query whole model

fn is_ok(&self) -> bool

fn num_vars(&self) -> u32

fn num_clauses(&self) -> u32

fn num_conflicts(&self) -> u32

fn value_lvl_0(&self, lit: Lit) -> lbool

Value of this literal if it’s assigned at level 0, or UNDEF otherwise

fn print_stats(&self)

Print some current statistics to standard output.

fn unsat_core(&self) -> &[Lit]

Return unsat core (as a subset of assumptions).

fn unsat_core_contains_lit(&self, lit: Lit) -> bool

Does this literal occur in the unsat-core?

fn unsat_core_contains_var(&self, v: Var) -> bool

Does this variable occur in the unsat-core?

fn proved_at_lvl_0(&self) -> &[Lit]

Obtain the slice of literals that are proved at level 0.