12 #ifndef CPROVER_SOLVERS_DECISION_PROCEDURE_H
13 #define CPROVER_SOLVERS_DECISION_PROCEDURE_H
An interface for a decision procedure for satisfiability problems.
virtual exprt get(const exprt &) const =0
Return expr with variables replaced by values from satisfying assignment if available.
resultt operator()()
Run the decision procedure to solve the problem This corresponds to SMT-LIB's check-sat.
void set_to_false(const exprt &)
For a Boolean expression expr, add the constraint 'not expr'.
virtual std::size_t get_number_of_solver_calls() const =0
Return the number of incremental solver calls.
virtual resultt dec_solve(const exprt &assumption)=0
Implementation of the decision procedure.
resultt
Result of running the decision procedure.
virtual void print_assignment(std::ostream &out) const =0
Print satisfying assignment to out.
virtual exprt handle(const exprt &)=0
Generate a handle, which is an expression that has the same value as the argument in any model that i...
void set_to_true(const exprt &)
For a Boolean expression expr, add the constraint 'expr'.
virtual ~decision_proceduret()
virtual void set_to(const exprt &, bool value)=0
For a Boolean expression expr, add the constraint 'expr' if value is true, otherwise add 'not expr'.
virtual std::string decision_procedure_text() const =0
Return a textual description of the decision procedure.
Base class for all expressions.
decision_proceduret & operator<<(decision_proceduret &dest, const exprt &src)
Add Boolean constraint src to decision procedure dest.
resultt
The result of goto verifying.