z3-z3-4.12.6.src.test.fuzzing.expr_rand.h Maven / Gradle / Ivy
/*++
Copyright (c) 2008 Microsoft Corporation
Module Name:
expr_rand.h
Abstract:
Generator of random ASTs.
Author:
Nikolaj Bjorner 2008-04-10.
Revision History:
--*/
#pragma once
#include "ast/ast.h"
#include "util/obj_hashtable.h"
class expr_rand {
ast_manager& m_manager;
unsigned m_max_steps;
random_gen m_random;
typedef obj_map map_t;
func_decl_ref_vector m_funcs;
map_t m_nodes;
public:
expr_rand(ast_manager& m);
~expr_rand();
void add_var(sort*);
void add_func_decl(func_decl*);
void add_expr(expr* t);
void get_next(sort* s, expr_ref& e);
void initialize_bv(unsigned num_vars);
void initialize_arith(unsigned num_vars);
void initialize_array(unsigned num_vars, sort* dom, sort* rng);
void initialize_basic(unsigned amplification);
void seed(unsigned n) { m_random = random_gen(n); }
private:
void walk();
void walk(unsigned n);
func_decl* choose_func_decl();
expr* choose_expr(sort*);
};