mirror of
https://github.com/Z3Prover/z3
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1838 lines
82 KiB
C++
1838 lines
82 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Thin C++ layer on top of the Z3 C API.
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Main features:
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- Smart pointers for all Z3 objects.
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- Object-Oriented interface.
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- Operator overloading.
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- Exceptions for signining Z3 errors
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The C API can be used simultaneously with the C++ layer.
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However, if you use the C API directly, you will have to check the error conditions manually.
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Of course, you can invoke the method check_error() of the context object.
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Author:
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Leonardo (leonardo) 2012-03-28
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Notes:
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--*/
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#ifndef __Z3PP_H_
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#define __Z3PP_H_
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#include<cassert>
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#include<iostream>
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#include<string>
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#include<sstream>
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#include<z3.h>
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#include<limits.h>
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/**
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\defgroup cppapi C++ API
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*/
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/*@{*/
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/**
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@name C++ API classes and functions
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*/
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/*@{*/
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/**
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\brief Z3 C++ namespace
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*/
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namespace z3 {
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class exception;
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class config;
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class context;
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class symbol;
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class params;
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class ast;
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class sort;
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class func_decl;
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class expr;
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class solver;
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class goal;
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class tactic;
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class probe;
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class model;
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class func_interp;
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class func_entry;
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class statistics;
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class apply_result;
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class fixedpoint;
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template<typename T> class ast_vector_tpl;
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typedef ast_vector_tpl<ast> ast_vector;
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typedef ast_vector_tpl<expr> expr_vector;
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typedef ast_vector_tpl<sort> sort_vector;
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typedef ast_vector_tpl<func_decl> func_decl_vector;
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inline void set_param(char const * param, char const * value) { Z3_global_param_set(param, value); }
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inline void set_param(char const * param, bool value) { Z3_global_param_set(param, value ? "true" : "false"); }
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inline void set_param(char const * param, int value) { std::ostringstream oss; oss << value; Z3_global_param_set(param, oss.str().c_str()); }
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inline void reset_params() { Z3_global_param_reset_all(); }
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/**
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\brief Exception used to sign API usage errors.
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*/
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class exception {
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std::string m_msg;
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public:
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exception(char const * msg):m_msg(msg) {}
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char const * msg() const { return m_msg.c_str(); }
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friend std::ostream & operator<<(std::ostream & out, exception const & e) { out << e.msg(); return out; }
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};
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/**
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\brief Z3 global configuration object.
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*/
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class config {
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Z3_config m_cfg;
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config(config const & s);
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config & operator=(config const & s);
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public:
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config() { m_cfg = Z3_mk_config(); }
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~config() { Z3_del_config(m_cfg); }
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operator Z3_config() const { return m_cfg; }
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/**
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\brief Set global parameter \c param with string \c value.
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*/
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void set(char const * param, char const * value) { Z3_set_param_value(m_cfg, param, value); }
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/**
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\brief Set global parameter \c param with Boolean \c value.
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*/
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void set(char const * param, bool value) { Z3_set_param_value(m_cfg, param, value ? "true" : "false"); }
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/**
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\brief Set global parameter \c param with integer \c value.
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*/
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void set(char const * param, int value) {
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std::ostringstream oss;
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oss << value;
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Z3_set_param_value(m_cfg, param, oss.str().c_str());
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}
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};
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/**
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\brief A Context manages all other Z3 objects, global configuration options, etc.
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*/
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class context {
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Z3_context m_ctx;
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static void error_handler(Z3_context c, Z3_error_code e) { /* do nothing */ }
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void init(config & c) {
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m_ctx = Z3_mk_context_rc(c);
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Z3_set_error_handler(m_ctx, error_handler);
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Z3_set_ast_print_mode(m_ctx, Z3_PRINT_SMTLIB2_COMPLIANT);
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}
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context(context const & s);
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context & operator=(context const & s);
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public:
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context() { config c; init(c); }
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context(config & c) { init(c); }
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~context() { Z3_del_context(m_ctx); }
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operator Z3_context() const { return m_ctx; }
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/**
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\brief Auxiliary method used to check for API usage errors.
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*/
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void check_error() const {
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Z3_error_code e = Z3_get_error_code(m_ctx);
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if (e != Z3_OK)
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throw exception(Z3_get_error_msg_ex(m_ctx, e));
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}
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/**
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\brief Update global parameter \c param with string \c value.
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*/
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void set(char const * param, char const * value) { Z3_update_param_value(m_ctx, param, value); }
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/**
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\brief Update global parameter \c param with Boolean \c value.
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*/
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void set(char const * param, bool value) { Z3_update_param_value(m_ctx, param, value ? "true" : "false"); }
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/**
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\brief Update global parameter \c param with Integer \c value.
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*/
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void set(char const * param, int value) {
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std::ostringstream oss;
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oss << value;
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Z3_update_param_value(m_ctx, param, oss.str().c_str());
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}
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/**
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\brief Interrupt the current procedure being executed by any object managed by this context.
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This is a soft interruption: there is no guarantee the object will actualy stop.
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*/
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void interrupt() { Z3_interrupt(m_ctx); }
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/**
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\brief Create a Z3 symbol based on the given string.
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*/
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symbol str_symbol(char const * s);
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/**
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\brief Create a Z3 symbol based on the given integer.
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*/
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symbol int_symbol(int n);
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/**
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\brief Return the Boolean sort.
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*/
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sort bool_sort();
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/**
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\brief Return the integer sort.
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*/
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sort int_sort();
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/**
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\brief Return the Real sort.
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*/
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sort real_sort();
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/**
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\brief Return the Bit-vector sort of size \c sz. That is, the sort for bit-vectors of size \c sz.
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*/
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sort bv_sort(unsigned sz);
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/**
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\brief Return an array sort for arrays from \c d to \c r.
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Example: Given a context \c c, <tt>c.array_sort(c.int_sort(), c.bool_sort())</tt> is an array sort from integer to Boolean.
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*/
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sort array_sort(sort d, sort r);
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/**
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\brief Return an enumeration sort: enum_names[0], ..., enum_names[n-1].
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\c cs and \c ts are output parameters. The method stores in \c cs the constants corresponding to the enumerated elements,
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and in \c ts the predicates for testing if terms of the enumeration sort correspond to an enumeration.
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*/
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sort enumeration_sort(char const * name, unsigned n, char const * const * enum_names, func_decl_vector & cs, func_decl_vector & ts);
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func_decl function(symbol const & name, unsigned arity, sort const * domain, sort const & range);
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func_decl function(char const * name, unsigned arity, sort const * domain, sort const & range);
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func_decl function(symbol const& name, sort_vector const& domain, sort const& range);
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func_decl function(char const * name, sort_vector const& domain, sort const& range);
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func_decl function(char const * name, sort const & domain, sort const & range);
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func_decl function(char const * name, sort const & d1, sort const & d2, sort const & range);
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func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & range);
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func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & range);
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func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & d5, sort const & range);
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expr constant(symbol const & name, sort const & s);
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expr constant(char const * name, sort const & s);
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expr bool_const(char const * name);
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expr int_const(char const * name);
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expr real_const(char const * name);
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expr bv_const(char const * name, unsigned sz);
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expr bool_val(bool b);
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expr int_val(int n);
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expr int_val(unsigned n);
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expr int_val(__int64 n);
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expr int_val(__uint64 n);
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expr int_val(char const * n);
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expr real_val(int n, int d);
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expr real_val(int n);
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expr real_val(unsigned n);
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expr real_val(__int64 n);
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expr real_val(__uint64 n);
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expr real_val(char const * n);
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expr bv_val(int n, unsigned sz);
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expr bv_val(unsigned n, unsigned sz);
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expr bv_val(__int64 n, unsigned sz);
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expr bv_val(__uint64 n, unsigned sz);
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expr bv_val(char const * n, unsigned sz);
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expr num_val(int n, sort const & s);
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};
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template<typename T>
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class array {
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T * m_array;
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unsigned m_size;
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array(array const & s);
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array & operator=(array const & s);
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public:
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array(unsigned sz):m_size(sz) { m_array = new T[sz]; }
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template<typename T2>
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array(ast_vector_tpl<T2> const & v);
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~array() { delete[] m_array; }
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unsigned size() const { return m_size; }
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T & operator[](int i) { assert(0 <= i); assert(static_cast<unsigned>(i) < m_size); return m_array[i]; }
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T const & operator[](int i) const { assert(0 <= i); assert(static_cast<unsigned>(i) < m_size); return m_array[i]; }
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T const * ptr() const { return m_array; }
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T * ptr() { return m_array; }
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};
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class object {
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protected:
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context * m_ctx;
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public:
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object(context & c):m_ctx(&c) {}
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object(object const & s):m_ctx(s.m_ctx) {}
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context & ctx() const { return *m_ctx; }
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void check_error() const { m_ctx->check_error(); }
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friend void check_context(object const & a, object const & b) { assert(a.m_ctx == b.m_ctx); }
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};
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class symbol : public object {
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Z3_symbol m_sym;
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public:
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symbol(context & c, Z3_symbol s):object(c), m_sym(s) {}
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symbol(symbol const & s):object(s), m_sym(s.m_sym) {}
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symbol & operator=(symbol const & s) { m_ctx = s.m_ctx; m_sym = s.m_sym; return *this; }
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operator Z3_symbol() const { return m_sym; }
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Z3_symbol_kind kind() const { return Z3_get_symbol_kind(ctx(), m_sym); }
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std::string str() const { assert(kind() == Z3_STRING_SYMBOL); return Z3_get_symbol_string(ctx(), m_sym); }
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int to_int() const { assert(kind() == Z3_INT_SYMBOL); return Z3_get_symbol_int(ctx(), m_sym); }
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friend std::ostream & operator<<(std::ostream & out, symbol const & s) {
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if (s.kind() == Z3_INT_SYMBOL)
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out << "k!" << s.to_int();
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else
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out << s.str().c_str();
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return out;
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}
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};
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class params : public object {
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Z3_params m_params;
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public:
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params(context & c):object(c) { m_params = Z3_mk_params(c); Z3_params_inc_ref(ctx(), m_params); }
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params(params const & s):object(s), m_params(s.m_params) { Z3_params_inc_ref(ctx(), m_params); }
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~params() { Z3_params_dec_ref(ctx(), m_params); }
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operator Z3_params() const { return m_params; }
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params & operator=(params const & s) {
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Z3_params_inc_ref(s.ctx(), s.m_params);
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Z3_params_dec_ref(ctx(), m_params);
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m_ctx = s.m_ctx;
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m_params = s.m_params;
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return *this;
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}
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void set(char const * k, bool b) { Z3_params_set_bool(ctx(), m_params, ctx().str_symbol(k), b); }
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void set(char const * k, unsigned n) { Z3_params_set_uint(ctx(), m_params, ctx().str_symbol(k), n); }
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void set(char const * k, double n) { Z3_params_set_double(ctx(), m_params, ctx().str_symbol(k), n); }
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void set(char const * k, symbol const & s) { Z3_params_set_symbol(ctx(), m_params, ctx().str_symbol(k), s); }
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friend std::ostream & operator<<(std::ostream & out, params const & p) { out << Z3_params_to_string(p.ctx(), p); return out; }
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};
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class ast : public object {
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protected:
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Z3_ast m_ast;
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public:
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ast(context & c):object(c), m_ast(0) {}
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ast(context & c, Z3_ast n):object(c), m_ast(n) { Z3_inc_ref(ctx(), m_ast); }
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ast(ast const & s):object(s), m_ast(s.m_ast) { Z3_inc_ref(ctx(), m_ast); }
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~ast() { if (m_ast) Z3_dec_ref(*m_ctx, m_ast); }
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operator Z3_ast() const { return m_ast; }
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operator bool() const { return m_ast != 0; }
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ast & operator=(ast const & s) { Z3_inc_ref(s.ctx(), s.m_ast); if (m_ast) Z3_dec_ref(ctx(), m_ast); m_ctx = s.m_ctx; m_ast = s.m_ast; return *this; }
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Z3_ast_kind kind() const { Z3_ast_kind r = Z3_get_ast_kind(ctx(), m_ast); check_error(); return r; }
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unsigned hash() const { unsigned r = Z3_get_ast_hash(ctx(), m_ast); check_error(); return r; }
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friend std::ostream & operator<<(std::ostream & out, ast const & n) { out << Z3_ast_to_string(n.ctx(), n.m_ast); return out; }
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/**
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\brief Return true if the ASTs are structurally identical.
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*/
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friend bool eq(ast const & a, ast const & b) { return Z3_is_eq_ast(a.ctx(), a, b) != 0; }
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};
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/**
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\brief A Z3 sort (aka type). Every expression (i.e., formula or term) in Z3 has a sort.
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*/
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class sort : public ast {
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public:
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sort(context & c):ast(c) {}
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sort(context & c, Z3_sort s):ast(c, reinterpret_cast<Z3_ast>(s)) {}
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sort(sort const & s):ast(s) {}
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operator Z3_sort() const { return reinterpret_cast<Z3_sort>(m_ast); }
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/**
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\brief Return true if this sort and \c s are equal.
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*/
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sort & operator=(sort const & s) { return static_cast<sort&>(ast::operator=(s)); }
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/**
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\brief Return the internal sort kind.
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*/
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Z3_sort_kind sort_kind() const { return Z3_get_sort_kind(*m_ctx, *this); }
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/**
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\brief Return true if this sort is the Boolean sort.
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*/
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bool is_bool() const { return sort_kind() == Z3_BOOL_SORT; }
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/**
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\brief Return true if this sort is the Integer sort.
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*/
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bool is_int() const { return sort_kind() == Z3_INT_SORT; }
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/**
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\brief Return true if this sort is the Real sort.
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*/
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bool is_real() const { return sort_kind() == Z3_REAL_SORT; }
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/**
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\brief Return true if this sort is the Integer or Real sort.
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*/
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bool is_arith() const { return is_int() || is_real(); }
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/**
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\brief Return true if this sort is a Bit-vector sort.
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*/
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bool is_bv() const { return sort_kind() == Z3_BV_SORT; }
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/**
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\brief Return true if this sort is a Array sort.
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*/
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bool is_array() const { return sort_kind() == Z3_ARRAY_SORT; }
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/**
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\brief Return true if this sort is a Datatype sort.
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*/
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bool is_datatype() const { return sort_kind() == Z3_DATATYPE_SORT; }
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/**
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\brief Return true if this sort is a Relation sort.
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*/
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bool is_relation() const { return sort_kind() == Z3_RELATION_SORT; }
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/**
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\brief Return true if this sort is a Finite domain sort.
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*/
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bool is_finite_domain() const { return sort_kind() == Z3_FINITE_DOMAIN_SORT; }
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/**
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\brief Return the size of this Bit-vector sort.
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\pre is_bv()
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*/
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unsigned bv_size() const { assert(is_bv()); unsigned r = Z3_get_bv_sort_size(ctx(), *this); check_error(); return r; }
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/**
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\brief Return the domain of this Array sort.
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\pre is_array()
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*/
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sort array_domain() const { assert(is_array()); Z3_sort s = Z3_get_array_sort_domain(ctx(), *this); check_error(); return sort(ctx(), s); }
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/**
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\brief Return the range of this Array sort.
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\pre is_array()
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*/
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sort array_range() const { assert(is_array()); Z3_sort s = Z3_get_array_sort_range(ctx(), *this); check_error(); return sort(ctx(), s); }
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};
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/**
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\brief Function declaration (aka function definition). It is the signature of interpreted and uninterpreted functions in Z3.
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The basic building block in Z3 is the function application.
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*/
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class func_decl : public ast {
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public:
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func_decl(context & c):ast(c) {}
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func_decl(context & c, Z3_func_decl n):ast(c, reinterpret_cast<Z3_ast>(n)) {}
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func_decl(func_decl const & s):ast(s) {}
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operator Z3_func_decl() const { return reinterpret_cast<Z3_func_decl>(m_ast); }
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func_decl & operator=(func_decl const & s) { return static_cast<func_decl&>(ast::operator=(s)); }
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unsigned arity() const { return Z3_get_arity(ctx(), *this); }
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sort domain(unsigned i) const { assert(i < arity()); Z3_sort r = Z3_get_domain(ctx(), *this, i); check_error(); return sort(ctx(), r); }
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sort range() const { Z3_sort r = Z3_get_range(ctx(), *this); check_error(); return sort(ctx(), r); }
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symbol name() const { Z3_symbol s = Z3_get_decl_name(ctx(), *this); check_error(); return symbol(ctx(), s); }
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Z3_decl_kind decl_kind() const { return Z3_get_decl_kind(ctx(), *this); }
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bool is_const() const { return arity() == 0; }
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expr operator()() const;
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expr operator()(unsigned n, expr const * args) const;
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expr operator()(expr_vector const& v) const;
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expr operator()(expr const & a) const;
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expr operator()(int a) const;
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expr operator()(expr const & a1, expr const & a2) const;
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expr operator()(expr const & a1, int a2) const;
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expr operator()(int a1, expr const & a2) const;
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expr operator()(expr const & a1, expr const & a2, expr const & a3) const;
|
|
expr operator()(expr const & a1, expr const & a2, expr const & a3, expr const & a4) const;
|
|
expr operator()(expr const & a1, expr const & a2, expr const & a3, expr const & a4, expr const & a5) const;
|
|
};
|
|
|
|
/**
|
|
\brief A Z3 expression is used to represent formulas and terms. For Z3, a formula is any expression of sort Boolean.
|
|
Every expression has a sort.
|
|
*/
|
|
class expr : public ast {
|
|
public:
|
|
expr(context & c):ast(c) {}
|
|
expr(context & c, Z3_ast n):ast(c, reinterpret_cast<Z3_ast>(n)) {}
|
|
expr(expr const & n):ast(n) {}
|
|
expr & operator=(expr const & n) { return static_cast<expr&>(ast::operator=(n)); }
|
|
|
|
/**
|
|
\brief Return the sort of this expression.
|
|
*/
|
|
sort get_sort() const { Z3_sort s = Z3_get_sort(*m_ctx, m_ast); check_error(); return sort(*m_ctx, s); }
|
|
|
|
/**
|
|
\brief Return true if this is a Boolean expression.
|
|
*/
|
|
bool is_bool() const { return get_sort().is_bool(); }
|
|
/**
|
|
\brief Return true if this is an integer expression.
|
|
*/
|
|
bool is_int() const { return get_sort().is_int(); }
|
|
/**
|
|
\brief Return true if this is a real expression.
|
|
*/
|
|
bool is_real() const { return get_sort().is_real(); }
|
|
/**
|
|
\brief Return true if this is an integer or real expression.
|
|
*/
|
|
bool is_arith() const { return get_sort().is_arith(); }
|
|
/**
|
|
\brief Return true if this is a Bit-vector expression.
|
|
*/
|
|
bool is_bv() const { return get_sort().is_bv(); }
|
|
/**
|
|
\brief Return true if this is a Array expression.
|
|
*/
|
|
bool is_array() const { return get_sort().is_array(); }
|
|
/**
|
|
\brief Return true if this is a Datatype expression.
|
|
*/
|
|
bool is_datatype() const { return get_sort().is_datatype(); }
|
|
/**
|
|
\brief Return true if this is a Relation expression.
|
|
*/
|
|
bool is_relation() const { return get_sort().is_relation(); }
|
|
/**
|
|
\brief Return true if this is a Finite-domain expression.
|
|
|
|
\remark Finite-domain is special kind of interpreted sort:
|
|
is_bool(), is_bv() and is_finite_domain() are mutually
|
|
exclusive.
|
|
|
|
*/
|
|
bool is_finite_domain() const { return get_sort().is_finite_domain(); }
|
|
|
|
/**
|
|
\brief Return true if this expression is a numeral.
|
|
*/
|
|
bool is_numeral() const { return kind() == Z3_NUMERAL_AST; }
|
|
/**
|
|
\brief Return true if this expression is an application.
|
|
*/
|
|
bool is_app() const { return kind() == Z3_APP_AST || kind() == Z3_NUMERAL_AST; }
|
|
/**
|
|
\brief Return true if this expression is a constant (i.e., an application with 0 arguments).
|
|
*/
|
|
bool is_const() const { return is_app() && num_args() == 0; }
|
|
/**
|
|
\brief Return true if this expression is a quantifier.
|
|
*/
|
|
bool is_quantifier() const { return kind() == Z3_QUANTIFIER_AST; }
|
|
/**
|
|
\brief Return true if this expression is a variable.
|
|
*/
|
|
bool is_var() const { return kind() == Z3_VAR_AST; }
|
|
|
|
/**
|
|
\brief Return true if this expression is well sorted (aka type correct).
|
|
*/
|
|
bool is_well_sorted() const { bool r = Z3_is_well_sorted(ctx(), m_ast) != 0; check_error(); return r; }
|
|
|
|
operator Z3_app() const { assert(is_app()); return reinterpret_cast<Z3_app>(m_ast); }
|
|
|
|
/**
|
|
\brief Return the declaration associated with this application.
|
|
This method assumes the expression is an application.
|
|
|
|
\pre is_app()
|
|
*/
|
|
func_decl decl() const { Z3_func_decl f = Z3_get_app_decl(ctx(), *this); check_error(); return func_decl(ctx(), f); }
|
|
/**
|
|
\brief Return the number of arguments in this application.
|
|
This method assumes the expression is an application.
|
|
|
|
\pre is_app()
|
|
*/
|
|
unsigned num_args() const { unsigned r = Z3_get_app_num_args(ctx(), *this); check_error(); return r; }
|
|
/**
|
|
\brief Return the i-th argument of this application.
|
|
This method assumes the expression is an application.
|
|
|
|
\pre is_app()
|
|
\pre i < num_args()
|
|
*/
|
|
expr arg(unsigned i) const { Z3_ast r = Z3_get_app_arg(ctx(), *this, i); check_error(); return expr(ctx(), r); }
|
|
|
|
/**
|
|
\brief Return the 'body' of this quantifier.
|
|
|
|
\pre is_quantifier()
|
|
*/
|
|
expr body() const { assert(is_quantifier()); Z3_ast r = Z3_get_quantifier_body(ctx(), *this); check_error(); return expr(ctx(), r); }
|
|
|
|
/**
|
|
\brief Return an expression representing <tt>not(a)</tt>.
|
|
|
|
\pre a.is_bool()
|
|
*/
|
|
friend expr operator!(expr const & a) {
|
|
assert(a.is_bool());
|
|
Z3_ast r = Z3_mk_not(a.ctx(), a);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
|
|
/**
|
|
\brief Return an expression representing <tt>a and b</tt>.
|
|
|
|
\pre a.is_bool()
|
|
\pre b.is_bool()
|
|
*/
|
|
friend expr operator&&(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
assert(a.is_bool() && b.is_bool());
|
|
Z3_ast args[2] = { a, b };
|
|
Z3_ast r = Z3_mk_and(a.ctx(), 2, args);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
|
|
/**
|
|
\brief Return an expression representing <tt>a and b</tt>.
|
|
The C++ Boolean value \c b is automatically converted into a Z3 Boolean constant.
|
|
|
|
\pre a.is_bool()
|
|
*/
|
|
friend expr operator&&(expr const & a, bool b) { return a && a.ctx().bool_val(b); }
|
|
/**
|
|
\brief Return an expression representing <tt>a and b</tt>.
|
|
The C++ Boolean value \c a is automatically converted into a Z3 Boolean constant.
|
|
|
|
\pre b.is_bool()
|
|
*/
|
|
friend expr operator&&(bool a, expr const & b) { return b.ctx().bool_val(a) && b; }
|
|
|
|
/**
|
|
\brief Return an expression representing <tt>a or b</tt>.
|
|
|
|
\pre a.is_bool()
|
|
\pre b.is_bool()
|
|
*/
|
|
friend expr operator||(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
assert(a.is_bool() && b.is_bool());
|
|
Z3_ast args[2] = { a, b };
|
|
Z3_ast r = Z3_mk_or(a.ctx(), 2, args);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
/**
|
|
\brief Return an expression representing <tt>a or b</tt>.
|
|
The C++ Boolean value \c b is automatically converted into a Z3 Boolean constant.
|
|
|
|
\pre a.is_bool()
|
|
*/
|
|
friend expr operator||(expr const & a, bool b) { return a || a.ctx().bool_val(b); }
|
|
/**
|
|
\brief Return an expression representing <tt>a or b</tt>.
|
|
The C++ Boolean value \c a is automatically converted into a Z3 Boolean constant.
|
|
|
|
\pre b.is_bool()
|
|
*/
|
|
friend expr operator||(bool a, expr const & b) { return b.ctx().bool_val(a) || b; }
|
|
|
|
friend expr implies(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
assert(a.is_bool() && b.is_bool());
|
|
Z3_ast r = Z3_mk_implies(a.ctx(), a, b);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr implies(expr const & a, bool b) { return implies(a, a.ctx().bool_val(b)); }
|
|
friend expr implies(bool a, expr const & b) { return implies(b.ctx().bool_val(a), b); }
|
|
|
|
/**
|
|
\brief Create the if-then-else expression <tt>ite(c, t, e)</tt>
|
|
|
|
\pre c.is_bool()
|
|
*/
|
|
friend expr ite(expr const & c, expr const & t, expr const & e) {
|
|
check_context(c, t); check_context(c, e);
|
|
assert(c.is_bool());
|
|
Z3_ast r = Z3_mk_ite(c.ctx(), c, t, e);
|
|
c.check_error();
|
|
return expr(c.ctx(), r);
|
|
}
|
|
|
|
friend expr distinct(expr_vector const& args);
|
|
|
|
friend expr operator==(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r = Z3_mk_eq(a.ctx(), a, b);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator==(expr const & a, int b) { assert(a.is_arith() || a.is_bv()); return a == a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator==(int a, expr const & b) { assert(b.is_arith() || b.is_bv()); return b.ctx().num_val(a, b.get_sort()) == b; }
|
|
|
|
friend expr operator!=(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast args[2] = { a, b };
|
|
Z3_ast r = Z3_mk_distinct(a.ctx(), 2, args);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator!=(expr const & a, int b) { assert(a.is_arith() || a.is_bv()); return a != a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator!=(int a, expr const & b) { assert(b.is_arith() || b.is_bv()); return b.ctx().num_val(a, b.get_sort()) != b; }
|
|
|
|
friend expr operator+(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
Z3_ast args[2] = { a, b };
|
|
r = Z3_mk_add(a.ctx(), 2, args);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvadd(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator+(expr const & a, int b) { return a + a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator+(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) + b; }
|
|
|
|
friend expr operator*(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
Z3_ast args[2] = { a, b };
|
|
r = Z3_mk_mul(a.ctx(), 2, args);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvmul(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator*(expr const & a, int b) { return a * a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator*(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) * b; }
|
|
|
|
/**
|
|
\brief Power operator
|
|
*/
|
|
friend expr pw(expr const & a, expr const & b) {
|
|
assert(a.is_arith() && b.is_arith());
|
|
check_context(a, b);
|
|
Z3_ast r = Z3_mk_power(a.ctx(), a, b);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr pw(expr const & a, int b) { return pw(a, a.ctx().num_val(b, a.get_sort())); }
|
|
friend expr pw(int a, expr const & b) { return pw(b.ctx().num_val(a, b.get_sort()), b); }
|
|
|
|
friend expr operator/(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
r = Z3_mk_div(a.ctx(), a, b);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvsdiv(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator/(expr const & a, int b) { return a / a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator/(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) / b; }
|
|
|
|
friend expr operator-(expr const & a) {
|
|
Z3_ast r;
|
|
if (a.is_arith()) {
|
|
r = Z3_mk_unary_minus(a.ctx(), a);
|
|
}
|
|
else if (a.is_bv()) {
|
|
r = Z3_mk_bvneg(a.ctx(), a);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
|
|
friend expr operator-(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
Z3_ast args[2] = { a, b };
|
|
r = Z3_mk_sub(a.ctx(), 2, args);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvsub(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator-(expr const & a, int b) { return a - a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator-(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) - b; }
|
|
|
|
friend expr operator<=(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
r = Z3_mk_le(a.ctx(), a, b);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvsle(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator<=(expr const & a, int b) { return a <= a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator<=(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) <= b; }
|
|
|
|
friend expr operator>=(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
r = Z3_mk_ge(a.ctx(), a, b);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvsge(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator>=(expr const & a, int b) { return a >= a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator>=(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) >= b; }
|
|
|
|
friend expr operator<(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
r = Z3_mk_lt(a.ctx(), a, b);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvslt(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator<(expr const & a, int b) { return a < a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator<(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) < b; }
|
|
|
|
friend expr operator>(expr const & a, expr const & b) {
|
|
check_context(a, b);
|
|
Z3_ast r;
|
|
if (a.is_arith() && b.is_arith()) {
|
|
r = Z3_mk_gt(a.ctx(), a, b);
|
|
}
|
|
else if (a.is_bv() && b.is_bv()) {
|
|
r = Z3_mk_bvsgt(a.ctx(), a, b);
|
|
}
|
|
else {
|
|
// operator is not supported by given arguments.
|
|
assert(false);
|
|
}
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
friend expr operator>(expr const & a, int b) { return a > a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator>(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) > b; }
|
|
|
|
friend expr operator&(expr const & a, expr const & b) { check_context(a, b); Z3_ast r = Z3_mk_bvand(a.ctx(), a, b); return expr(a.ctx(), r); }
|
|
friend expr operator&(expr const & a, int b) { return a & a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator&(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) & b; }
|
|
|
|
friend expr operator^(expr const & a, expr const & b) { check_context(a, b); Z3_ast r = Z3_mk_bvxor(a.ctx(), a, b); return expr(a.ctx(), r); }
|
|
friend expr operator^(expr const & a, int b) { return a ^ a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator^(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) ^ b; }
|
|
|
|
friend expr operator|(expr const & a, expr const & b) { check_context(a, b); Z3_ast r = Z3_mk_bvor(a.ctx(), a, b); return expr(a.ctx(), r); }
|
|
friend expr operator|(expr const & a, int b) { return a | a.ctx().num_val(b, a.get_sort()); }
|
|
friend expr operator|(int a, expr const & b) { return b.ctx().num_val(a, b.get_sort()) | b; }
|
|
|
|
friend expr operator~(expr const & a) { Z3_ast r = Z3_mk_bvnot(a.ctx(), a); return expr(a.ctx(), r); }
|
|
|
|
/**
|
|
\brief Return a simplified version of this expression.
|
|
*/
|
|
expr simplify() const { Z3_ast r = Z3_simplify(ctx(), m_ast); check_error(); return expr(ctx(), r); }
|
|
/**
|
|
\brief Return a simplified version of this expression. The parameter \c p is a set of parameters for the Z3 simplifier.
|
|
*/
|
|
expr simplify(params const & p) const { Z3_ast r = Z3_simplify_ex(ctx(), m_ast, p); check_error(); return expr(ctx(), r); }
|
|
|
|
/**
|
|
\brief Apply substitution. Replace src expressions by dst.
|
|
*/
|
|
expr substitute(expr_vector const& src, expr_vector const& dst);
|
|
|
|
/**
|
|
\brief Apply substitution. Replace bound variables by expressions.
|
|
*/
|
|
expr substitute(expr_vector const& dst);
|
|
|
|
};
|
|
|
|
/**
|
|
\brief Wraps a Z3_ast as an expr object. It also checks for errors.
|
|
This function allows the user to use the whole C API with the C++ layer defined in this file.
|
|
*/
|
|
inline expr to_expr(context & c, Z3_ast a) {
|
|
c.check_error();
|
|
assert(Z3_get_ast_kind(c, a) == Z3_APP_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_NUMERAL_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_VAR_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_QUANTIFIER_AST);
|
|
return expr(c, a);
|
|
}
|
|
|
|
inline sort to_sort(context & c, Z3_sort s) {
|
|
c.check_error();
|
|
return sort(c, s);
|
|
}
|
|
|
|
inline func_decl to_func_decl(context & c, Z3_func_decl f) {
|
|
c.check_error();
|
|
return func_decl(c, f);
|
|
}
|
|
|
|
/**
|
|
\brief unsigned less than or equal to operator for bitvectors.
|
|
*/
|
|
inline expr ule(expr const & a, expr const & b) { return to_expr(a.ctx(), Z3_mk_bvule(a.ctx(), a, b)); }
|
|
inline expr ule(expr const & a, int b) { return ule(a, a.ctx().num_val(b, a.get_sort())); }
|
|
inline expr ule(int a, expr const & b) { return ule(b.ctx().num_val(a, b.get_sort()), b); }
|
|
/**
|
|
\brief unsigned less than operator for bitvectors.
|
|
*/
|
|
inline expr ult(expr const & a, expr const & b) { return to_expr(a.ctx(), Z3_mk_bvult(a.ctx(), a, b)); }
|
|
inline expr ult(expr const & a, int b) { return ult(a, a.ctx().num_val(b, a.get_sort())); }
|
|
inline expr ult(int a, expr const & b) { return ult(b.ctx().num_val(a, b.get_sort()), b); }
|
|
/**
|
|
\brief unsigned greater than or equal to operator for bitvectors.
|
|
*/
|
|
inline expr uge(expr const & a, expr const & b) { return to_expr(a.ctx(), Z3_mk_bvuge(a.ctx(), a, b)); }
|
|
inline expr uge(expr const & a, int b) { return uge(a, a.ctx().num_val(b, a.get_sort())); }
|
|
inline expr uge(int a, expr const & b) { return uge(b.ctx().num_val(a, b.get_sort()), b); }
|
|
/**
|
|
\brief unsigned greater than operator for bitvectors.
|
|
*/
|
|
inline expr ugt(expr const & a, expr const & b) { return to_expr(a.ctx(), Z3_mk_bvugt(a.ctx(), a, b)); }
|
|
inline expr ugt(expr const & a, int b) { return ugt(a, a.ctx().num_val(b, a.get_sort())); }
|
|
inline expr ugt(int a, expr const & b) { return ugt(b.ctx().num_val(a, b.get_sort()), b); }
|
|
/**
|
|
\brief unsigned division operator for bitvectors.
|
|
*/
|
|
inline expr udiv(expr const & a, expr const & b) { return to_expr(a.ctx(), Z3_mk_bvudiv(a.ctx(), a, b)); }
|
|
inline expr udiv(expr const & a, int b) { return udiv(a, a.ctx().num_val(b, a.get_sort())); }
|
|
inline expr udiv(int a, expr const & b) { return udiv(b.ctx().num_val(a, b.get_sort()), b); }
|
|
|
|
template<typename T> class cast_ast;
|
|
|
|
template<> class cast_ast<ast> {
|
|
public:
|
|
ast operator()(context & c, Z3_ast a) { return ast(c, a); }
|
|
};
|
|
|
|
template<> class cast_ast<expr> {
|
|
public:
|
|
expr operator()(context & c, Z3_ast a) {
|
|
assert(Z3_get_ast_kind(c, a) == Z3_NUMERAL_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_APP_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_QUANTIFIER_AST ||
|
|
Z3_get_ast_kind(c, a) == Z3_VAR_AST);
|
|
return expr(c, a);
|
|
}
|
|
};
|
|
|
|
template<> class cast_ast<sort> {
|
|
public:
|
|
sort operator()(context & c, Z3_ast a) {
|
|
assert(Z3_get_ast_kind(c, a) == Z3_SORT_AST);
|
|
return sort(c, reinterpret_cast<Z3_sort>(a));
|
|
}
|
|
};
|
|
|
|
template<> class cast_ast<func_decl> {
|
|
public:
|
|
func_decl operator()(context & c, Z3_ast a) {
|
|
assert(Z3_get_ast_kind(c, a) == Z3_FUNC_DECL_AST);
|
|
return func_decl(c, reinterpret_cast<Z3_func_decl>(a));
|
|
}
|
|
};
|
|
|
|
template<typename T>
|
|
class ast_vector_tpl : public object {
|
|
Z3_ast_vector m_vector;
|
|
void init(Z3_ast_vector v) { Z3_ast_vector_inc_ref(ctx(), v); m_vector = v; }
|
|
public:
|
|
ast_vector_tpl(context & c):object(c) { init(Z3_mk_ast_vector(c)); }
|
|
ast_vector_tpl(context & c, Z3_ast_vector v):object(c) { init(v); }
|
|
ast_vector_tpl(ast_vector_tpl const & s):object(s), m_vector(s.m_vector) { Z3_ast_vector_inc_ref(ctx(), m_vector); }
|
|
~ast_vector_tpl() { Z3_ast_vector_dec_ref(ctx(), m_vector); }
|
|
operator Z3_ast_vector() const { return m_vector; }
|
|
unsigned size() const { return Z3_ast_vector_size(ctx(), m_vector); }
|
|
T operator[](int i) const { assert(0 <= i); Z3_ast r = Z3_ast_vector_get(ctx(), m_vector, i); check_error(); return cast_ast<T>()(ctx(), r); }
|
|
void push_back(T const & e) { Z3_ast_vector_push(ctx(), m_vector, e); check_error(); }
|
|
void resize(unsigned sz) { Z3_ast_vector_resize(ctx(), m_vector, sz); check_error(); }
|
|
T back() const { return operator[](size() - 1); }
|
|
void pop_back() { assert(size() > 0); resize(size() - 1); }
|
|
bool empty() const { return size() == 0; }
|
|
ast_vector_tpl & operator=(ast_vector_tpl const & s) {
|
|
Z3_ast_vector_inc_ref(s.ctx(), s.m_vector);
|
|
Z3_ast_vector_dec_ref(ctx(), m_vector);
|
|
m_ctx = s.m_ctx;
|
|
m_vector = s.m_vector;
|
|
return *this;
|
|
}
|
|
friend std::ostream & operator<<(std::ostream & out, ast_vector_tpl const & v) { out << Z3_ast_vector_to_string(v.ctx(), v); return out; }
|
|
};
|
|
|
|
template<typename T>
|
|
template<typename T2>
|
|
array<T>::array(ast_vector_tpl<T2> const & v) {
|
|
m_array = new T[v.size()];
|
|
m_size = v.size();
|
|
for (unsigned i = 0; i < m_size; i++) {
|
|
m_array[i] = v[i];
|
|
}
|
|
}
|
|
|
|
// Basic functions for creating quantified formulas.
|
|
// The C API should be used for creating quantifiers with patterns, weights, many variables, etc.
|
|
inline expr forall(expr const & x, expr const & b) {
|
|
check_context(x, b);
|
|
Z3_app vars[] = {(Z3_app) x};
|
|
Z3_ast r = Z3_mk_forall_const(b.ctx(), 0, 1, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr forall(expr const & x1, expr const & x2, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2};
|
|
Z3_ast r = Z3_mk_forall_const(b.ctx(), 0, 2, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr forall(expr const & x1, expr const & x2, expr const & x3, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b); check_context(x3, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2, (Z3_app) x3 };
|
|
Z3_ast r = Z3_mk_forall_const(b.ctx(), 0, 3, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr forall(expr const & x1, expr const & x2, expr const & x3, expr const & x4, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b); check_context(x3, b); check_context(x4, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2, (Z3_app) x3, (Z3_app) x4 };
|
|
Z3_ast r = Z3_mk_forall_const(b.ctx(), 0, 4, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr forall(expr_vector const & xs, expr const & b) {
|
|
array<Z3_app> vars(xs);
|
|
Z3_ast r = Z3_mk_forall_const(b.ctx(), 0, vars.size(), vars.ptr(), 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr exists(expr const & x, expr const & b) {
|
|
check_context(x, b);
|
|
Z3_app vars[] = {(Z3_app) x};
|
|
Z3_ast r = Z3_mk_exists_const(b.ctx(), 0, 1, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr exists(expr const & x1, expr const & x2, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2};
|
|
Z3_ast r = Z3_mk_exists_const(b.ctx(), 0, 2, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr exists(expr const & x1, expr const & x2, expr const & x3, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b); check_context(x3, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2, (Z3_app) x3 };
|
|
Z3_ast r = Z3_mk_exists_const(b.ctx(), 0, 3, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr exists(expr const & x1, expr const & x2, expr const & x3, expr const & x4, expr const & b) {
|
|
check_context(x1, b); check_context(x2, b); check_context(x3, b); check_context(x4, b);
|
|
Z3_app vars[] = {(Z3_app) x1, (Z3_app) x2, (Z3_app) x3, (Z3_app) x4 };
|
|
Z3_ast r = Z3_mk_exists_const(b.ctx(), 0, 4, vars, 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
inline expr exists(expr_vector const & xs, expr const & b) {
|
|
array<Z3_app> vars(xs);
|
|
Z3_ast r = Z3_mk_exists_const(b.ctx(), 0, vars.size(), vars.ptr(), 0, 0, b); b.check_error(); return expr(b.ctx(), r);
|
|
}
|
|
|
|
|
|
inline expr distinct(expr_vector const& args) {
|
|
assert(args.size() > 0);
|
|
context& ctx = args[0].ctx();
|
|
array<Z3_ast> _args(args);
|
|
Z3_ast r = Z3_mk_distinct(ctx, _args.size(), _args.ptr());
|
|
ctx.check_error();
|
|
return expr(ctx, r);
|
|
}
|
|
|
|
class func_entry : public object {
|
|
Z3_func_entry m_entry;
|
|
void init(Z3_func_entry e) {
|
|
m_entry = e;
|
|
Z3_func_entry_inc_ref(ctx(), m_entry);
|
|
}
|
|
public:
|
|
func_entry(context & c, Z3_func_entry e):object(c) { init(e); }
|
|
func_entry(func_entry const & s):object(s) { init(s.m_entry); }
|
|
~func_entry() { Z3_func_entry_dec_ref(ctx(), m_entry); }
|
|
operator Z3_func_entry() const { return m_entry; }
|
|
func_entry & operator=(func_entry const & s) {
|
|
Z3_func_entry_inc_ref(s.ctx(), s.m_entry);
|
|
Z3_func_entry_dec_ref(ctx(), m_entry);
|
|
m_ctx = s.m_ctx;
|
|
m_entry = s.m_entry;
|
|
return *this;
|
|
}
|
|
expr value() const { Z3_ast r = Z3_func_entry_get_value(ctx(), m_entry); check_error(); return expr(ctx(), r); }
|
|
unsigned num_args() const { unsigned r = Z3_func_entry_get_num_args(ctx(), m_entry); check_error(); return r; }
|
|
expr arg(unsigned i) const { Z3_ast r = Z3_func_entry_get_arg(ctx(), m_entry, i); check_error(); return expr(ctx(), r); }
|
|
};
|
|
|
|
class func_interp : public object {
|
|
Z3_func_interp m_interp;
|
|
void init(Z3_func_interp e) {
|
|
m_interp = e;
|
|
Z3_func_interp_inc_ref(ctx(), m_interp);
|
|
}
|
|
public:
|
|
func_interp(context & c, Z3_func_interp e):object(c) { init(e); }
|
|
func_interp(func_interp const & s):object(s) { init(s.m_interp); }
|
|
~func_interp() { Z3_func_interp_dec_ref(ctx(), m_interp); }
|
|
operator Z3_func_interp() const { return m_interp; }
|
|
func_interp & operator=(func_interp const & s) {
|
|
Z3_func_interp_inc_ref(s.ctx(), s.m_interp);
|
|
Z3_func_interp_dec_ref(ctx(), m_interp);
|
|
m_ctx = s.m_ctx;
|
|
m_interp = s.m_interp;
|
|
return *this;
|
|
}
|
|
expr else_value() const { Z3_ast r = Z3_func_interp_get_else(ctx(), m_interp); check_error(); return expr(ctx(), r); }
|
|
unsigned num_entries() const { unsigned r = Z3_func_interp_get_num_entries(ctx(), m_interp); check_error(); return r; }
|
|
func_entry entry(unsigned i) const { Z3_func_entry e = Z3_func_interp_get_entry(ctx(), m_interp, i); check_error(); return func_entry(ctx(), e); }
|
|
};
|
|
|
|
class model : public object {
|
|
Z3_model m_model;
|
|
void init(Z3_model m) {
|
|
m_model = m;
|
|
Z3_model_inc_ref(ctx(), m);
|
|
}
|
|
public:
|
|
model(context & c, Z3_model m):object(c) { init(m); }
|
|
model(model const & s):object(s) { init(s.m_model); }
|
|
~model() { Z3_model_dec_ref(ctx(), m_model); }
|
|
operator Z3_model() const { return m_model; }
|
|
model & operator=(model const & s) {
|
|
Z3_model_inc_ref(s.ctx(), s.m_model);
|
|
Z3_model_dec_ref(ctx(), m_model);
|
|
m_ctx = s.m_ctx;
|
|
m_model = s.m_model;
|
|
return *this;
|
|
}
|
|
|
|
expr eval(expr const & n, bool model_completion=false) const {
|
|
check_context(*this, n);
|
|
Z3_ast r;
|
|
Z3_bool status = Z3_model_eval(ctx(), m_model, n, model_completion, &r);
|
|
check_error();
|
|
if (status == Z3_FALSE)
|
|
throw exception("failed to evaluate expression");
|
|
return expr(ctx(), r);
|
|
}
|
|
|
|
unsigned num_consts() const { return Z3_model_get_num_consts(ctx(), m_model); }
|
|
unsigned num_funcs() const { return Z3_model_get_num_funcs(ctx(), m_model); }
|
|
func_decl get_const_decl(unsigned i) const { Z3_func_decl r = Z3_model_get_const_decl(ctx(), m_model, i); check_error(); return func_decl(ctx(), r); }
|
|
func_decl get_func_decl(unsigned i) const { Z3_func_decl r = Z3_model_get_func_decl(ctx(), m_model, i); check_error(); return func_decl(ctx(), r); }
|
|
unsigned size() const { return num_consts() + num_funcs(); }
|
|
func_decl operator[](int i) const {
|
|
assert(0 <= i);
|
|
return static_cast<unsigned>(i) < num_consts() ? get_const_decl(i) : get_func_decl(i - num_consts());
|
|
}
|
|
|
|
expr get_const_interp(func_decl c) const {
|
|
check_context(*this, c);
|
|
Z3_ast r = Z3_model_get_const_interp(ctx(), m_model, c);
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
func_interp get_func_interp(func_decl f) const {
|
|
check_context(*this, f);
|
|
Z3_func_interp r = Z3_model_get_func_interp(ctx(), m_model, f);
|
|
check_error();
|
|
return func_interp(ctx(), r);
|
|
}
|
|
|
|
friend std::ostream & operator<<(std::ostream & out, model const & m) { out << Z3_model_to_string(m.ctx(), m); return out; }
|
|
};
|
|
|
|
class stats : public object {
|
|
Z3_stats m_stats;
|
|
void init(Z3_stats e) {
|
|
m_stats = e;
|
|
Z3_stats_inc_ref(ctx(), m_stats);
|
|
}
|
|
public:
|
|
stats(context & c):object(c), m_stats(0) {}
|
|
stats(context & c, Z3_stats e):object(c) { init(e); }
|
|
stats(stats const & s):object(s) { init(s.m_stats); }
|
|
~stats() { if (m_stats) Z3_stats_dec_ref(ctx(), m_stats); }
|
|
operator Z3_stats() const { return m_stats; }
|
|
stats & operator=(stats const & s) {
|
|
Z3_stats_inc_ref(s.ctx(), s.m_stats);
|
|
if (m_stats) Z3_stats_dec_ref(ctx(), m_stats);
|
|
m_ctx = s.m_ctx;
|
|
m_stats = s.m_stats;
|
|
return *this;
|
|
}
|
|
unsigned size() const { return Z3_stats_size(ctx(), m_stats); }
|
|
std::string key(unsigned i) const { Z3_string s = Z3_stats_get_key(ctx(), m_stats, i); check_error(); return s; }
|
|
bool is_uint(unsigned i) const { Z3_bool r = Z3_stats_is_uint(ctx(), m_stats, i); check_error(); return r != 0; }
|
|
bool is_double(unsigned i) const { Z3_bool r = Z3_stats_is_double(ctx(), m_stats, i); check_error(); return r != 0; }
|
|
unsigned uint_value(unsigned i) const { unsigned r = Z3_stats_get_uint_value(ctx(), m_stats, i); check_error(); return r; }
|
|
double double_value(unsigned i) const { double r = Z3_stats_get_double_value(ctx(), m_stats, i); check_error(); return r; }
|
|
friend std::ostream & operator<<(std::ostream & out, stats const & s) { out << Z3_stats_to_string(s.ctx(), s); return out; }
|
|
};
|
|
|
|
enum check_result {
|
|
unsat, sat, unknown
|
|
};
|
|
|
|
inline std::ostream & operator<<(std::ostream & out, check_result r) {
|
|
if (r == unsat) out << "unsat";
|
|
else if (r == sat) out << "sat";
|
|
else out << "unknown";
|
|
return out;
|
|
}
|
|
|
|
inline check_result to_check_result(Z3_lbool l) {
|
|
if (l == Z3_L_TRUE) return sat;
|
|
else if (l == Z3_L_FALSE) return unsat;
|
|
return unknown;
|
|
}
|
|
|
|
class solver : public object {
|
|
Z3_solver m_solver;
|
|
void init(Z3_solver s) {
|
|
m_solver = s;
|
|
Z3_solver_inc_ref(ctx(), s);
|
|
}
|
|
public:
|
|
solver(context & c):object(c) { init(Z3_mk_solver(c)); }
|
|
solver(context & c, Z3_solver s):object(c) { init(s); }
|
|
solver(context & c, char const * logic):object(c) { init(Z3_mk_solver_for_logic(c, c.str_symbol(logic))); }
|
|
solver(solver const & s):object(s) { init(s.m_solver); }
|
|
~solver() { Z3_solver_dec_ref(ctx(), m_solver); }
|
|
operator Z3_solver() const { return m_solver; }
|
|
solver & operator=(solver const & s) {
|
|
Z3_solver_inc_ref(s.ctx(), s.m_solver);
|
|
Z3_solver_dec_ref(ctx(), m_solver);
|
|
m_ctx = s.m_ctx;
|
|
m_solver = s.m_solver;
|
|
return *this;
|
|
}
|
|
void set(params const & p) { Z3_solver_set_params(ctx(), m_solver, p); check_error(); }
|
|
void push() { Z3_solver_push(ctx(), m_solver); check_error(); }
|
|
void pop(unsigned n = 1) { Z3_solver_pop(ctx(), m_solver, n); check_error(); }
|
|
void reset() { Z3_solver_reset(ctx(), m_solver); check_error(); }
|
|
void add(expr const & e) { assert(e.is_bool()); Z3_solver_assert(ctx(), m_solver, e); check_error(); }
|
|
void add(expr const & e, expr const & p) {
|
|
assert(e.is_bool()); assert(p.is_bool()); assert(p.is_const());
|
|
Z3_solver_assert_and_track(ctx(), m_solver, e, p);
|
|
check_error();
|
|
}
|
|
void add(expr const & e, char const * p) {
|
|
add(e, ctx().bool_const(p));
|
|
}
|
|
check_result check() { Z3_lbool r = Z3_solver_check(ctx(), m_solver); check_error(); return to_check_result(r); }
|
|
check_result check(unsigned n, expr * const assumptions) {
|
|
array<Z3_ast> _assumptions(n);
|
|
for (unsigned i = 0; i < n; i++) {
|
|
check_context(*this, assumptions[i]);
|
|
_assumptions[i] = assumptions[i];
|
|
}
|
|
Z3_lbool r = Z3_solver_check_assumptions(ctx(), m_solver, n, _assumptions.ptr());
|
|
check_error();
|
|
return to_check_result(r);
|
|
}
|
|
check_result check(expr_vector assumptions) {
|
|
unsigned n = assumptions.size();
|
|
array<Z3_ast> _assumptions(n);
|
|
for (unsigned i = 0; i < n; i++) {
|
|
check_context(*this, assumptions[i]);
|
|
_assumptions[i] = assumptions[i];
|
|
}
|
|
Z3_lbool r = Z3_solver_check_assumptions(ctx(), m_solver, n, _assumptions.ptr());
|
|
check_error();
|
|
return to_check_result(r);
|
|
}
|
|
model get_model() const { Z3_model m = Z3_solver_get_model(ctx(), m_solver); check_error(); return model(ctx(), m); }
|
|
std::string reason_unknown() const { Z3_string r = Z3_solver_get_reason_unknown(ctx(), m_solver); check_error(); return r; }
|
|
stats statistics() const { Z3_stats r = Z3_solver_get_statistics(ctx(), m_solver); check_error(); return stats(ctx(), r); }
|
|
expr_vector unsat_core() const { Z3_ast_vector r = Z3_solver_get_unsat_core(ctx(), m_solver); check_error(); return expr_vector(ctx(), r); }
|
|
expr_vector assertions() const { Z3_ast_vector r = Z3_solver_get_assertions(ctx(), m_solver); check_error(); return expr_vector(ctx(), r); }
|
|
expr proof() const { Z3_ast r = Z3_solver_get_proof(ctx(), m_solver); check_error(); return expr(ctx(), r); }
|
|
friend std::ostream & operator<<(std::ostream & out, solver const & s) { out << Z3_solver_to_string(s.ctx(), s); return out; }
|
|
};
|
|
|
|
class goal : public object {
|
|
Z3_goal m_goal;
|
|
void init(Z3_goal s) {
|
|
m_goal = s;
|
|
Z3_goal_inc_ref(ctx(), s);
|
|
}
|
|
public:
|
|
goal(context & c, bool models=true, bool unsat_cores=false, bool proofs=false):object(c) { init(Z3_mk_goal(c, models, unsat_cores, proofs)); }
|
|
goal(context & c, Z3_goal s):object(c) { init(s); }
|
|
goal(goal const & s):object(s) { init(s.m_goal); }
|
|
~goal() { Z3_goal_dec_ref(ctx(), m_goal); }
|
|
operator Z3_goal() const { return m_goal; }
|
|
goal & operator=(goal const & s) {
|
|
Z3_goal_inc_ref(s.ctx(), s.m_goal);
|
|
Z3_goal_dec_ref(ctx(), m_goal);
|
|
m_ctx = s.m_ctx;
|
|
m_goal = s.m_goal;
|
|
return *this;
|
|
}
|
|
void add(expr const & f) { check_context(*this, f); Z3_goal_assert(ctx(), m_goal, f); check_error(); }
|
|
unsigned size() const { return Z3_goal_size(ctx(), m_goal); }
|
|
expr operator[](int i) const { assert(0 <= i); Z3_ast r = Z3_goal_formula(ctx(), m_goal, i); check_error(); return expr(ctx(), r); }
|
|
Z3_goal_prec precision() const { return Z3_goal_precision(ctx(), m_goal); }
|
|
bool inconsistent() const { return Z3_goal_inconsistent(ctx(), m_goal) != 0; }
|
|
unsigned depth() const { return Z3_goal_depth(ctx(), m_goal); }
|
|
void reset() { Z3_goal_reset(ctx(), m_goal); }
|
|
unsigned num_exprs() const { return Z3_goal_num_exprs(ctx(), m_goal); }
|
|
bool is_decided_sat() const { return Z3_goal_is_decided_sat(ctx(), m_goal) != 0; }
|
|
bool is_decided_unsat() const { return Z3_goal_is_decided_unsat(ctx(), m_goal) != 0; }
|
|
expr as_expr() const {
|
|
unsigned n = size();
|
|
if (n == 0)
|
|
return ctx().bool_val(true);
|
|
else if (n == 1)
|
|
return operator[](0);
|
|
else {
|
|
array<Z3_ast> args(n);
|
|
for (unsigned i = 0; i < n; i++)
|
|
args[i] = operator[](i);
|
|
return expr(ctx(), Z3_mk_and(ctx(), n, args.ptr()));
|
|
}
|
|
}
|
|
friend std::ostream & operator<<(std::ostream & out, goal const & g) { out << Z3_goal_to_string(g.ctx(), g); return out; }
|
|
};
|
|
|
|
class apply_result : public object {
|
|
Z3_apply_result m_apply_result;
|
|
void init(Z3_apply_result s) {
|
|
m_apply_result = s;
|
|
Z3_apply_result_inc_ref(ctx(), s);
|
|
}
|
|
public:
|
|
apply_result(context & c, Z3_apply_result s):object(c) { init(s); }
|
|
apply_result(apply_result const & s):object(s) { init(s.m_apply_result); }
|
|
~apply_result() { Z3_apply_result_dec_ref(ctx(), m_apply_result); }
|
|
operator Z3_apply_result() const { return m_apply_result; }
|
|
apply_result & operator=(apply_result const & s) {
|
|
Z3_apply_result_inc_ref(s.ctx(), s.m_apply_result);
|
|
Z3_apply_result_dec_ref(ctx(), m_apply_result);
|
|
m_ctx = s.m_ctx;
|
|
m_apply_result = s.m_apply_result;
|
|
return *this;
|
|
}
|
|
unsigned size() const { return Z3_apply_result_get_num_subgoals(ctx(), m_apply_result); }
|
|
goal operator[](int i) const { assert(0 <= i); Z3_goal r = Z3_apply_result_get_subgoal(ctx(), m_apply_result, i); check_error(); return goal(ctx(), r); }
|
|
model convert_model(model const & m, unsigned i = 0) const {
|
|
check_context(*this, m);
|
|
Z3_model new_m = Z3_apply_result_convert_model(ctx(), m_apply_result, i, m);
|
|
check_error();
|
|
return model(ctx(), new_m);
|
|
}
|
|
friend std::ostream & operator<<(std::ostream & out, apply_result const & r) { out << Z3_apply_result_to_string(r.ctx(), r); return out; }
|
|
};
|
|
|
|
class tactic : public object {
|
|
Z3_tactic m_tactic;
|
|
void init(Z3_tactic s) {
|
|
m_tactic = s;
|
|
Z3_tactic_inc_ref(ctx(), s);
|
|
}
|
|
public:
|
|
tactic(context & c, char const * name):object(c) { Z3_tactic r = Z3_mk_tactic(c, name); check_error(); init(r); }
|
|
tactic(context & c, Z3_tactic s):object(c) { init(s); }
|
|
tactic(tactic const & s):object(s) { init(s.m_tactic); }
|
|
~tactic() { Z3_tactic_dec_ref(ctx(), m_tactic); }
|
|
operator Z3_tactic() const { return m_tactic; }
|
|
tactic & operator=(tactic const & s) {
|
|
Z3_tactic_inc_ref(s.ctx(), s.m_tactic);
|
|
Z3_tactic_dec_ref(ctx(), m_tactic);
|
|
m_ctx = s.m_ctx;
|
|
m_tactic = s.m_tactic;
|
|
return *this;
|
|
}
|
|
solver mk_solver() const { Z3_solver r = Z3_mk_solver_from_tactic(ctx(), m_tactic); check_error(); return solver(ctx(), r); }
|
|
apply_result apply(goal const & g) const {
|
|
check_context(*this, g);
|
|
Z3_apply_result r = Z3_tactic_apply(ctx(), m_tactic, g);
|
|
check_error();
|
|
return apply_result(ctx(), r);
|
|
}
|
|
apply_result operator()(goal const & g) const {
|
|
return apply(g);
|
|
}
|
|
std::string help() const { char const * r = Z3_tactic_get_help(ctx(), m_tactic); check_error(); return r; }
|
|
friend tactic operator&(tactic const & t1, tactic const & t2) {
|
|
check_context(t1, t2);
|
|
Z3_tactic r = Z3_tactic_and_then(t1.ctx(), t1, t2);
|
|
t1.check_error();
|
|
return tactic(t1.ctx(), r);
|
|
}
|
|
friend tactic operator|(tactic const & t1, tactic const & t2) {
|
|
check_context(t1, t2);
|
|
Z3_tactic r = Z3_tactic_or_else(t1.ctx(), t1, t2);
|
|
t1.check_error();
|
|
return tactic(t1.ctx(), r);
|
|
}
|
|
friend tactic repeat(tactic const & t, unsigned max=UINT_MAX) {
|
|
Z3_tactic r = Z3_tactic_repeat(t.ctx(), t, max);
|
|
t.check_error();
|
|
return tactic(t.ctx(), r);
|
|
}
|
|
friend tactic with(tactic const & t, params const & p) {
|
|
Z3_tactic r = Z3_tactic_using_params(t.ctx(), t, p);
|
|
t.check_error();
|
|
return tactic(t.ctx(), r);
|
|
}
|
|
friend tactic try_for(tactic const & t, unsigned ms) {
|
|
Z3_tactic r = Z3_tactic_try_for(t.ctx(), t, ms);
|
|
t.check_error();
|
|
return tactic(t.ctx(), r);
|
|
}
|
|
};
|
|
|
|
class probe : public object {
|
|
Z3_probe m_probe;
|
|
void init(Z3_probe s) {
|
|
m_probe = s;
|
|
Z3_probe_inc_ref(ctx(), s);
|
|
}
|
|
public:
|
|
probe(context & c, char const * name):object(c) { Z3_probe r = Z3_mk_probe(c, name); check_error(); init(r); }
|
|
probe(context & c, double val):object(c) { Z3_probe r = Z3_probe_const(c, val); check_error(); init(r); }
|
|
probe(context & c, Z3_probe s):object(c) { init(s); }
|
|
probe(probe const & s):object(s) { init(s.m_probe); }
|
|
~probe() { Z3_probe_dec_ref(ctx(), m_probe); }
|
|
operator Z3_probe() const { return m_probe; }
|
|
probe & operator=(probe const & s) {
|
|
Z3_probe_inc_ref(s.ctx(), s.m_probe);
|
|
Z3_probe_dec_ref(ctx(), m_probe);
|
|
m_ctx = s.m_ctx;
|
|
m_probe = s.m_probe;
|
|
return *this;
|
|
}
|
|
double apply(goal const & g) const { double r = Z3_probe_apply(ctx(), m_probe, g); check_error(); return r; }
|
|
double operator()(goal const & g) const { return apply(g); }
|
|
friend probe operator<=(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_le(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator<=(probe const & p1, double p2) { return p1 <= probe(p1.ctx(), p2); }
|
|
friend probe operator<=(double p1, probe const & p2) { return probe(p2.ctx(), p1) <= p2; }
|
|
friend probe operator>=(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_ge(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator>=(probe const & p1, double p2) { return p1 >= probe(p1.ctx(), p2); }
|
|
friend probe operator>=(double p1, probe const & p2) { return probe(p2.ctx(), p1) >= p2; }
|
|
friend probe operator<(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_lt(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator<(probe const & p1, double p2) { return p1 < probe(p1.ctx(), p2); }
|
|
friend probe operator<(double p1, probe const & p2) { return probe(p2.ctx(), p1) < p2; }
|
|
friend probe operator>(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_gt(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator>(probe const & p1, double p2) { return p1 > probe(p1.ctx(), p2); }
|
|
friend probe operator>(double p1, probe const & p2) { return probe(p2.ctx(), p1) > p2; }
|
|
friend probe operator==(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_eq(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator==(probe const & p1, double p2) { return p1 == probe(p1.ctx(), p2); }
|
|
friend probe operator==(double p1, probe const & p2) { return probe(p2.ctx(), p1) == p2; }
|
|
friend probe operator&&(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_and(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator||(probe const & p1, probe const & p2) {
|
|
check_context(p1, p2); Z3_probe r = Z3_probe_or(p1.ctx(), p1, p2); p1.check_error(); return probe(p1.ctx(), r);
|
|
}
|
|
friend probe operator!(probe const & p) {
|
|
Z3_probe r = Z3_probe_not(p.ctx(), p); p.check_error(); return probe(p.ctx(), r);
|
|
}
|
|
};
|
|
|
|
class optimize : public object {
|
|
Z3_optimize m_opt;
|
|
public:
|
|
class handle {
|
|
unsigned m_h;
|
|
public:
|
|
handle(unsigned h): m_h(h) {}
|
|
unsigned h() const { return m_h; }
|
|
};
|
|
optimize(context& c):object(c) { m_opt = Z3_mk_optimize(c); Z3_optimize_inc_ref(c, m_opt); }
|
|
~optimize() { Z3_optimize_dec_ref(ctx(), m_opt); }
|
|
operator Z3_optimize() const { return m_opt; }
|
|
void add(expr const& e) {
|
|
assert(e.is_bool());
|
|
Z3_optimize_assert(ctx(), m_opt, e);
|
|
}
|
|
handle add(expr const& e, unsigned weight) {
|
|
assert(e.is_bool());
|
|
std::stringstream strm;
|
|
strm << weight;
|
|
return handle(Z3_optimize_assert_soft(ctx(), m_opt, e, strm.str().c_str(), 0));
|
|
}
|
|
handle add(expr const& e, char const* weight) {
|
|
assert(e.is_bool());
|
|
return handle(Z3_optimize_assert_soft(ctx(), m_opt, e, weight, 0));
|
|
}
|
|
handle maximize(expr const& e) {
|
|
return handle(Z3_optimize_maximize(ctx(), m_opt, e));
|
|
}
|
|
handle minimize(expr const& e) {
|
|
return handle(Z3_optimize_minimize(ctx(), m_opt, e));
|
|
}
|
|
check_result check() { Z3_lbool r = Z3_optimize_check(ctx(), m_opt); check_error(); return to_check_result(r); }
|
|
model get_model() const { Z3_model m = Z3_optimize_get_model(ctx(), m_opt); check_error(); return model(ctx(), m); }
|
|
void set(params const & p) { Z3_optimize_set_params(ctx(), m_opt, p); check_error(); }
|
|
expr lower(handle const& h) {
|
|
Z3_ast r = Z3_optimize_get_lower(ctx(), m_opt, h.h());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
expr upper(handle const& h) {
|
|
Z3_ast r = Z3_optimize_get_upper(ctx(), m_opt, h.h());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
stats statistics() const { Z3_stats r = Z3_optimize_get_statistics(ctx(), m_opt); check_error(); return stats(ctx(), r); }
|
|
friend std::ostream & operator<<(std::ostream & out, optimize const & s) { out << Z3_optimize_to_string(s.ctx(), s.m_opt); return out; }
|
|
std::string help() const { char const * r = Z3_optimize_get_help(ctx(), m_opt); check_error(); return r; }
|
|
};
|
|
|
|
inline tactic fail_if(probe const & p) {
|
|
Z3_tactic r = Z3_tactic_fail_if(p.ctx(), p);
|
|
p.check_error();
|
|
return tactic(p.ctx(), r);
|
|
}
|
|
inline tactic when(probe const & p, tactic const & t) {
|
|
check_context(p, t);
|
|
Z3_tactic r = Z3_tactic_when(t.ctx(), p, t);
|
|
t.check_error();
|
|
return tactic(t.ctx(), r);
|
|
}
|
|
inline tactic cond(probe const & p, tactic const & t1, tactic const & t2) {
|
|
check_context(p, t1); check_context(p, t2);
|
|
Z3_tactic r = Z3_tactic_cond(t1.ctx(), p, t1, t2);
|
|
t1.check_error();
|
|
return tactic(t1.ctx(), r);
|
|
}
|
|
|
|
inline symbol context::str_symbol(char const * s) { Z3_symbol r = Z3_mk_string_symbol(m_ctx, s); check_error(); return symbol(*this, r); }
|
|
inline symbol context::int_symbol(int n) { Z3_symbol r = Z3_mk_int_symbol(m_ctx, n); check_error(); return symbol(*this, r); }
|
|
|
|
inline sort context::bool_sort() { Z3_sort s = Z3_mk_bool_sort(m_ctx); check_error(); return sort(*this, s); }
|
|
inline sort context::int_sort() { Z3_sort s = Z3_mk_int_sort(m_ctx); check_error(); return sort(*this, s); }
|
|
inline sort context::real_sort() { Z3_sort s = Z3_mk_real_sort(m_ctx); check_error(); return sort(*this, s); }
|
|
inline sort context::bv_sort(unsigned sz) { Z3_sort s = Z3_mk_bv_sort(m_ctx, sz); check_error(); return sort(*this, s); }
|
|
inline sort context::array_sort(sort d, sort r) { Z3_sort s = Z3_mk_array_sort(m_ctx, d, r); check_error(); return sort(*this, s); }
|
|
inline sort context::enumeration_sort(char const * name, unsigned n, char const * const * enum_names, func_decl_vector & cs, func_decl_vector & ts) {
|
|
array<Z3_symbol> _enum_names(n);
|
|
for (unsigned i = 0; i < n; i++) { _enum_names[i] = Z3_mk_string_symbol(*this, enum_names[i]); }
|
|
array<Z3_func_decl> _cs(n);
|
|
array<Z3_func_decl> _ts(n);
|
|
Z3_symbol _name = Z3_mk_string_symbol(*this, name);
|
|
sort s = to_sort(*this, Z3_mk_enumeration_sort(*this, _name, n, _enum_names.ptr(), _cs.ptr(), _ts.ptr()));
|
|
check_error();
|
|
for (unsigned i = 0; i < n; i++) { cs.push_back(func_decl(*this, _cs[i])); ts.push_back(func_decl(*this, _ts[i])); }
|
|
return s;
|
|
}
|
|
|
|
inline func_decl context::function(symbol const & name, unsigned arity, sort const * domain, sort const & range) {
|
|
array<Z3_sort> args(arity);
|
|
for (unsigned i = 0; i < arity; i++) {
|
|
check_context(domain[i], range);
|
|
args[i] = domain[i];
|
|
}
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, name, arity, args.ptr(), range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, unsigned arity, sort const * domain, sort const & range) {
|
|
return function(range.ctx().str_symbol(name), arity, domain, range);
|
|
}
|
|
|
|
inline func_decl context::function(symbol const& name, sort_vector const& domain, sort const& range) {
|
|
array<Z3_sort> args(domain.size());
|
|
for (unsigned i = 0; i < domain.size(); i++) {
|
|
check_context(domain[i], range);
|
|
args[i] = domain[i];
|
|
}
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, name, domain.size(), args.ptr(), range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, sort_vector const& domain, sort const& range) {
|
|
return function(range.ctx().str_symbol(name), domain, range);
|
|
}
|
|
|
|
|
|
inline func_decl context::function(char const * name, sort const & domain, sort const & range) {
|
|
check_context(domain, range);
|
|
Z3_sort args[1] = { domain };
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, str_symbol(name), 1, args, range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, sort const & d1, sort const & d2, sort const & range) {
|
|
check_context(d1, range); check_context(d2, range);
|
|
Z3_sort args[2] = { d1, d2 };
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, str_symbol(name), 2, args, range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & range) {
|
|
check_context(d1, range); check_context(d2, range); check_context(d3, range);
|
|
Z3_sort args[3] = { d1, d2, d3 };
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, str_symbol(name), 3, args, range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & range) {
|
|
check_context(d1, range); check_context(d2, range); check_context(d3, range); check_context(d4, range);
|
|
Z3_sort args[4] = { d1, d2, d3, d4 };
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, str_symbol(name), 4, args, range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline func_decl context::function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & d5, sort const & range) {
|
|
check_context(d1, range); check_context(d2, range); check_context(d3, range); check_context(d4, range); check_context(d5, range);
|
|
Z3_sort args[5] = { d1, d2, d3, d4, d5 };
|
|
Z3_func_decl f = Z3_mk_func_decl(m_ctx, str_symbol(name), 5, args, range);
|
|
check_error();
|
|
return func_decl(*this, f);
|
|
}
|
|
|
|
inline expr context::constant(symbol const & name, sort const & s) {
|
|
Z3_ast r = Z3_mk_const(m_ctx, name, s);
|
|
check_error();
|
|
return expr(*this, r);
|
|
}
|
|
inline expr context::constant(char const * name, sort const & s) { return constant(str_symbol(name), s); }
|
|
inline expr context::bool_const(char const * name) { return constant(name, bool_sort()); }
|
|
inline expr context::int_const(char const * name) { return constant(name, int_sort()); }
|
|
inline expr context::real_const(char const * name) { return constant(name, real_sort()); }
|
|
inline expr context::bv_const(char const * name, unsigned sz) { return constant(name, bv_sort(sz)); }
|
|
|
|
inline expr context::bool_val(bool b) { return b ? expr(*this, Z3_mk_true(m_ctx)) : expr(*this, Z3_mk_false(m_ctx)); }
|
|
|
|
inline expr context::int_val(int n) { Z3_ast r = Z3_mk_int(m_ctx, n, int_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::int_val(unsigned n) { Z3_ast r = Z3_mk_unsigned_int(m_ctx, n, int_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::int_val(__int64 n) { Z3_ast r = Z3_mk_int64(m_ctx, n, int_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::int_val(__uint64 n) { Z3_ast r = Z3_mk_unsigned_int64(m_ctx, n, int_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::int_val(char const * n) { Z3_ast r = Z3_mk_numeral(m_ctx, n, int_sort()); check_error(); return expr(*this, r); }
|
|
|
|
inline expr context::real_val(int n, int d) { Z3_ast r = Z3_mk_real(m_ctx, n, d); check_error(); return expr(*this, r); }
|
|
inline expr context::real_val(int n) { Z3_ast r = Z3_mk_int(m_ctx, n, real_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::real_val(unsigned n) { Z3_ast r = Z3_mk_unsigned_int(m_ctx, n, real_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::real_val(__int64 n) { Z3_ast r = Z3_mk_int64(m_ctx, n, real_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::real_val(__uint64 n) { Z3_ast r = Z3_mk_unsigned_int64(m_ctx, n, real_sort()); check_error(); return expr(*this, r); }
|
|
inline expr context::real_val(char const * n) { Z3_ast r = Z3_mk_numeral(m_ctx, n, real_sort()); check_error(); return expr(*this, r); }
|
|
|
|
inline expr context::bv_val(int n, unsigned sz) { Z3_ast r = Z3_mk_int(m_ctx, n, bv_sort(sz)); check_error(); return expr(*this, r); }
|
|
inline expr context::bv_val(unsigned n, unsigned sz) { Z3_ast r = Z3_mk_unsigned_int(m_ctx, n, bv_sort(sz)); check_error(); return expr(*this, r); }
|
|
inline expr context::bv_val(__int64 n, unsigned sz) { Z3_ast r = Z3_mk_int64(m_ctx, n, bv_sort(sz)); check_error(); return expr(*this, r); }
|
|
inline expr context::bv_val(__uint64 n, unsigned sz) { Z3_ast r = Z3_mk_unsigned_int64(m_ctx, n, bv_sort(sz)); check_error(); return expr(*this, r); }
|
|
inline expr context::bv_val(char const * n, unsigned sz) { Z3_ast r = Z3_mk_numeral(m_ctx, n, bv_sort(sz)); check_error(); return expr(*this, r); }
|
|
|
|
inline expr context::num_val(int n, sort const & s) { Z3_ast r = Z3_mk_int(m_ctx, n, s); check_error(); return expr(*this, r); }
|
|
|
|
inline expr func_decl::operator()(unsigned n, expr const * args) const {
|
|
array<Z3_ast> _args(n);
|
|
for (unsigned i = 0; i < n; i++) {
|
|
check_context(*this, args[i]);
|
|
_args[i] = args[i];
|
|
}
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, n, _args.ptr());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
|
|
}
|
|
inline expr func_decl::operator()(expr_vector const& args) const {
|
|
array<Z3_ast> _args(args.size());
|
|
for (unsigned i = 0; i < args.size(); i++) {
|
|
check_context(*this, args[i]);
|
|
_args[i] = args[i];
|
|
}
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, args.size(), _args.ptr());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()() const {
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 0, 0);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a) const {
|
|
check_context(*this, a);
|
|
Z3_ast args[1] = { a };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 1, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(int a) const {
|
|
Z3_ast args[1] = { ctx().num_val(a, domain(0)) };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 1, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a1, expr const & a2) const {
|
|
check_context(*this, a1); check_context(*this, a2);
|
|
Z3_ast args[2] = { a1, a2 };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a1, int a2) const {
|
|
check_context(*this, a1);
|
|
Z3_ast args[2] = { a1, ctx().num_val(a2, domain(1)) };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(int a1, expr const & a2) const {
|
|
check_context(*this, a2);
|
|
Z3_ast args[2] = { ctx().num_val(a1, domain(0)), a2 };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a1, expr const & a2, expr const & a3) const {
|
|
check_context(*this, a1); check_context(*this, a2); check_context(*this, a3);
|
|
Z3_ast args[3] = { a1, a2, a3 };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 3, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a1, expr const & a2, expr const & a3, expr const & a4) const {
|
|
check_context(*this, a1); check_context(*this, a2); check_context(*this, a3); check_context(*this, a4);
|
|
Z3_ast args[4] = { a1, a2, a3, a4 };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 4, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
inline expr func_decl::operator()(expr const & a1, expr const & a2, expr const & a3, expr const & a4, expr const & a5) const {
|
|
check_context(*this, a1); check_context(*this, a2); check_context(*this, a3); check_context(*this, a4); check_context(*this, a5);
|
|
Z3_ast args[5] = { a1, a2, a3, a4, a5 };
|
|
Z3_ast r = Z3_mk_app(ctx(), *this, 5, args);
|
|
ctx().check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
|
|
inline expr to_real(expr const & a) { Z3_ast r = Z3_mk_int2real(a.ctx(), a); a.check_error(); return expr(a.ctx(), r); }
|
|
|
|
inline func_decl function(symbol const & name, unsigned arity, sort const * domain, sort const & range) {
|
|
return range.ctx().function(name, arity, domain, range);
|
|
}
|
|
inline func_decl function(char const * name, unsigned arity, sort const * domain, sort const & range) {
|
|
return range.ctx().function(name, arity, domain, range);
|
|
}
|
|
inline func_decl function(char const * name, sort const & domain, sort const & range) {
|
|
return range.ctx().function(name, domain, range);
|
|
}
|
|
inline func_decl function(char const * name, sort const & d1, sort const & d2, sort const & range) {
|
|
return range.ctx().function(name, d1, d2, range);
|
|
}
|
|
inline func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & range) {
|
|
return range.ctx().function(name, d1, d2, d3, range);
|
|
}
|
|
inline func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & range) {
|
|
return range.ctx().function(name, d1, d2, d3, d4, range);
|
|
}
|
|
inline func_decl function(char const * name, sort const & d1, sort const & d2, sort const & d3, sort const & d4, sort const & d5, sort const & range) {
|
|
return range.ctx().function(name, d1, d2, d3, d4, d5, range);
|
|
}
|
|
|
|
inline expr select(expr const & a, expr const & i) {
|
|
check_context(a, i);
|
|
Z3_ast r = Z3_mk_select(a.ctx(), a, i);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
inline expr select(expr const & a, int i) { return select(a, a.ctx().num_val(i, a.get_sort().array_domain())); }
|
|
inline expr store(expr const & a, expr const & i, expr const & v) {
|
|
check_context(a, i); check_context(a, v);
|
|
Z3_ast r = Z3_mk_store(a.ctx(), a, i, v);
|
|
a.check_error();
|
|
return expr(a.ctx(), r);
|
|
}
|
|
inline expr store(expr const & a, int i, expr const & v) { return store(a, a.ctx().num_val(i, a.get_sort().array_domain()), v); }
|
|
inline expr store(expr const & a, expr i, int v) { return store(a, i, a.ctx().num_val(v, a.get_sort().array_range())); }
|
|
inline expr store(expr const & a, int i, int v) {
|
|
return store(a, a.ctx().num_val(i, a.get_sort().array_domain()), a.ctx().num_val(v, a.get_sort().array_range()));
|
|
}
|
|
inline expr const_array(sort const & d, expr const & v) {
|
|
check_context(d, v);
|
|
Z3_ast r = Z3_mk_const_array(d.ctx(), d, v);
|
|
d.check_error();
|
|
return expr(d.ctx(), r);
|
|
}
|
|
|
|
inline expr expr::substitute(expr_vector const& src, expr_vector const& dst) {
|
|
assert(src.size() == dst.size());
|
|
array<Z3_ast> _src(src.size());
|
|
array<Z3_ast> _dst(dst.size());
|
|
for (unsigned i = 0; i < src.size(); ++i) {
|
|
_src[i] = src[i];
|
|
_dst[i] = dst[i];
|
|
}
|
|
Z3_ast r = Z3_substitute(ctx(), m_ast, src.size(), _src.ptr(), _dst.ptr());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
|
|
inline expr expr::substitute(expr_vector const& dst) {
|
|
array<Z3_ast> _dst(dst.size());
|
|
for (unsigned i = 0; i < dst.size(); ++i) {
|
|
_dst[i] = dst[i];
|
|
}
|
|
Z3_ast r = Z3_substitute_vars(ctx(), m_ast, dst.size(), _dst.ptr());
|
|
check_error();
|
|
return expr(ctx(), r);
|
|
}
|
|
|
|
|
|
|
|
};
|
|
|
|
/*@}*/
|
|
/*@}*/
|
|
|
|
#endif
|
|
|