z3-z3-4.12.6.src.test.arith_rewriter.cpp Maven / Gradle / Ivy
/*++
Copyright (c) 2015 Microsoft Corporation
--*/
#include "ast/rewriter/arith_rewriter.h"
#include "ast/bv_decl_plugin.h"
#include "ast/ast_pp.h"
#include "ast/reg_decl_plugins.h"
#include "ast/rewriter/th_rewriter.h"
#include "model/model.h"
#include "parsers/smt2/smt2parser.h"
#include
static expr_ref parse_fml(ast_manager& m, char const* str) {
expr_ref result(m);
cmd_context ctx(false, &m);
ctx.set_ignore_check(true);
std::ostringstream buffer;
buffer << "(declare-const x Real)\n"
<< "(declare-const y Real)\n"
<< "(declare-const z Real)\n"
<< "(declare-const a Real)\n"
<< "(declare-const b Real)\n"
<< "(assert " << str << ")\n";
std::istringstream is(buffer.str());
VERIFY(parse_smt2_commands(ctx, is));
ENSURE(!ctx.assertions().empty());
result = ctx.assertions().get(0);
return result;
}
static char const* example1 = "(<= (+ (* 1.3 x y) (* 2.3 y y) (* (- 1.1 x x))) 2.2)";
static char const* example2 = "(= (+ 4 3 (- (* 3 x x) (* 5 y)) y) 0)";
void tst_arith_rewriter() {
ast_manager m;
reg_decl_plugins(m);
arith_rewriter ar(m);
arith_util au(m);
expr_ref t1(m), t2(m), result(m);
t1 = au.mk_numeral(rational(0),false);
t2 = au.mk_numeral(rational(-3),false);
expr* args[2] = { t1, t2 };
ar.mk_mul(2, args, result);
std::cout << mk_pp(result, m) << "\n";
th_rewriter rw(m);
expr_ref fml = parse_fml(m, example1);
rw(fml);
std::cout << mk_pp(fml, m) << "\n";
fml = parse_fml(m, example2);
rw(fml);
std::cout << mk_pp(fml, m) << "\n";
}