1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/******************************************************************************
* Top contributors (to current version):
* Aina Niemetz
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2025 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* A simple demonstration of the solving capabilities of the cvc5
* bit-vector solver.
*
*/
#include <cvc5/c/cvc5.h>
#include <stdio.h>
int main()
{
Cvc5TermManager* tm = cvc5_term_manager_new();
Cvc5* slv = cvc5_new(tm);
cvc5_set_logic(slv, "QF_BV");
Cvc5Sort bv32 = cvc5_mk_bv_sort(tm, 32);
Cvc5Term x = cvc5_mk_const(tm, bv32, "x");
uint32_t idxs[2] = {31, 1};
Cvc5Op ext_31_1 = cvc5_mk_op(tm, CVC5_KIND_BITVECTOR_EXTRACT, 2, idxs);
Cvc5Term args1[1] = {x};
Cvc5Term x_31_1 = cvc5_mk_term_from_op(tm, ext_31_1, 1, args1);
idxs[0] = 30;
idxs[1] = 0;
Cvc5Op ext_30_0 = cvc5_mk_op(tm, CVC5_KIND_BITVECTOR_EXTRACT, 2, idxs);
Cvc5Term x_30_0 = cvc5_mk_term_from_op(tm, ext_30_0, 1, args1);
idxs[0] = 31;
idxs[1] = 31;
Cvc5Op ext_31_31 = cvc5_mk_op(tm, CVC5_KIND_BITVECTOR_EXTRACT, 2, idxs);
Cvc5Term x_31_31 = cvc5_mk_term_from_op(tm, ext_31_31, 1, args1);
idxs[0] = 0;
idxs[1] = 0;
Cvc5Op ext_0_0 = cvc5_mk_op(tm, CVC5_KIND_BITVECTOR_EXTRACT, 2, idxs);
Cvc5Term x_0_0 = cvc5_mk_term_from_op(tm, ext_0_0, 1, args1);
Cvc5Term args2[2] = {x_31_1, x_30_0};
Cvc5Term eq = cvc5_mk_term(tm, CVC5_KIND_EQUAL, 2, args2);
printf(" Asserting: %s\n", cvc5_term_to_string(eq));
cvc5_assert_formula(slv, eq);
args2[0] = x_31_31;
args2[1] = x_0_0;
Cvc5Term dis = cvc5_mk_term(tm, CVC5_KIND_DISTINCT, 2, args2);
printf(" Check sat assuming: %s\n", cvc5_term_to_string(dis));
printf(" Expect UNSAT.\n");
Cvc5Term assumptions[1] = {dis};
printf(" cvc5: %s\n",
cvc5_result_to_string(cvc5_check_sat_assuming(slv, 1, assumptions)));
cvc5_delete(slv);
cvc5_term_manager_delete(tm);
return 0;
}
|
