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/* Boolector: Satisfiability Modulo Theories (SMT) solver.
*
* Copyright (C) 2007-2021 by the authors listed in the AUTHORS file.
*
* This file is part of Boolector.
* See COPYING for more information on using this software.
*/
#include "test.h"
extern "C" {
#include "boolector.h"
#include "utils/btormem.h"
#include "utils/btorutil.h"
}
class TestMisc : public TestMm
{
protected:
static constexpr uint32_t BTOR_TEST_MISC_LOW = 1;
static constexpr uint32_t BTOR_TEST_MISC_HIGH = 4;
static constexpr uint32_t UEXT = 0;
static constexpr uint32_t SEXT = 1;
char *int_to_str (int32_t x, int32_t num_bits)
{
assert (x >= 0);
assert (num_bits > 0);
char *result = nullptr;
int32_t i = 0;
result = (char *) btor_mem_malloc (d_mm, sizeof (char) * (num_bits + 1));
for (i = num_bits - 1; i >= 0; i--)
{
result[i] = x % 2 ? '1' : '0';
x >>= 1;
}
result[num_bits] = '\0';
return result;
}
char *mk_slice (int32_t x, int32_t high, int32_t low, int32_t num_bits)
{
assert (high < num_bits);
assert (low >= 0);
assert (low <= high);
char *temp = nullptr;
char *result = nullptr;
int32_t i = 0;
int32_t counter = 0;
temp = int_to_str (x, num_bits);
assert (temp != nullptr);
result = int_to_str (0, high - low + 1);
counter = high - low;
for (i = low; i <= high; i++) result[counter--] = temp[num_bits - 1 - i];
btor_mem_freestr (d_mm, temp);
return result;
}
void slice_test_misc (int32_t low, int32_t high, uint32_t rwl)
{
assert (low > 0);
assert (low <= high);
Btor *btor;
int32_t i = 0;
int32_t j = 0;
char *result = 0;
int32_t num_bits = 0;
const int32_t x = 11;
for (num_bits = low; num_bits <= high; num_bits++)
{
for (i = num_bits - 1; i >= 0; i--)
{
for (j = i; j >= 0; j--)
{
BoolectorSort sort;
BoolectorNode *const1, *const2, *slice, *eq;
btor = boolector_new ();
boolector_set_opt (btor, BTOR_OPT_REWRITE_LEVEL, rwl);
result = mk_slice (x, i, j, num_bits);
sort = boolector_bitvec_sort (btor, high);
const1 = boolector_unsigned_int (btor, x, sort);
slice = boolector_slice (btor, const1, i, j);
const2 = boolector_const (btor, result);
eq = boolector_eq (btor, slice, const2);
boolector_assert (btor, eq);
ASSERT_EQ (boolector_sat (btor), BOOLECTOR_SAT);
boolector_release_sort (btor, sort);
boolector_release (btor, const1);
boolector_release (btor, const2);
boolector_release (btor, slice);
boolector_release (btor, eq);
boolector_delete (btor);
btor_mem_freestr (d_mm, result);
}
}
}
}
char *uext (int32_t x, int32_t y, int32_t num_bits)
{
assert (x >= 0);
assert (y >= 0);
assert (num_bits >= 1);
char *result = nullptr;
result = int_to_str (x, num_bits + y);
return result;
}
char *sext (int32_t x, int32_t y, int32_t num_bits)
{
assert (x >= 0);
assert (y >= 0);
assert (num_bits >= 1);
char *result = nullptr;
int32_t i = 0;
result = int_to_str (x, num_bits + y);
if (result[y] == '1')
{
for (i = 0; i < y; i++) result[i] = '1';
}
return result;
}
void ext_test_misc (uint32_t ext_mode,
int32_t low,
int32_t high,
uint32_t rwl)
{
assert (ext_mode == UEXT || ext_mode == SEXT);
assert (low > 0);
assert (low <= high);
Btor *btor;
BoolectorNode *(*btor_fun) (Btor *, BoolectorNode *, uint32_t);
int32_t i = 0;
int32_t j = 0;
int32_t max = 0;
char *result = 0;
int32_t num_bits = 0;
btor_fun = ext_mode == UEXT ? boolector_uext : boolector_sext;
for (num_bits = low; num_bits <= high; num_bits++)
{
max = btor_util_pow_2 (num_bits);
for (i = 0; i < max; i++)
{
for (j = 0; j < num_bits; j++)
{
BoolectorSort sort;
BoolectorNode *const1, *const2, *eq, *bfun;
btor = boolector_new ();
boolector_set_opt (btor, BTOR_OPT_REWRITE_LEVEL, rwl);
result =
ext_mode == UEXT ? uext (i, j, num_bits) : sext (i, j, num_bits);
sort = boolector_bitvec_sort (btor, num_bits);
const1 = boolector_unsigned_int (btor, i, sort);
bfun = btor_fun (btor, const1, j);
const2 = boolector_const (btor, result);
eq = boolector_eq (btor, bfun, const2);
boolector_assert (btor, eq);
ASSERT_EQ (boolector_sat (btor), BOOLECTOR_SAT);
boolector_release_sort (btor, sort);
boolector_release (btor, const1);
boolector_release (btor, const2);
boolector_release (btor, bfun);
boolector_release (btor, eq);
boolector_delete (btor);
btor_mem_freestr (d_mm, result);
}
}
}
}
char *mk_concat (int32_t x, int32_t y, int32_t num_bits)
{
assert (x >= 0);
assert (y >= 0);
assert (num_bits > 0);
assert (num_bits <= INT32_MAX / 2);
char *x_string = nullptr;
char *y_string = nullptr;
char *result = nullptr;
x_string = int_to_str (x, num_bits);
y_string = int_to_str (y, num_bits);
result =
(char *) btor_mem_malloc (d_mm, sizeof (char) * ((num_bits << 1) + 1));
strcpy (result, x_string);
strcat (result, y_string);
btor_mem_freestr (d_mm, x_string);
btor_mem_freestr (d_mm, y_string);
return result;
}
void concat_test_misc (int32_t low, int32_t high, uint32_t rwl)
{
assert (low > 0);
assert (low <= high);
Btor *btor;
int32_t i = 0;
int32_t j = 0;
int32_t max = 0;
char *result = 0;
int32_t num_bits = 0;
for (num_bits = low; num_bits <= high; num_bits++)
{
max = btor_util_pow_2 (num_bits);
for (i = 0; i < max; i++)
{
for (j = 0; j < max; j++)
{
BoolectorSort sort;
BoolectorNode *const1, *const2, *const3, *eq, *concat;
btor = boolector_new ();
boolector_set_opt (btor, BTOR_OPT_REWRITE_LEVEL, rwl);
result = mk_concat (i, j, num_bits);
sort = boolector_bitvec_sort (btor, num_bits);
const1 = boolector_unsigned_int (btor, i, sort);
const2 = boolector_unsigned_int (btor, j, sort);
concat = boolector_concat (btor, const1, const2);
const3 = boolector_const (btor, result);
eq = boolector_eq (btor, concat, const3);
boolector_assert (btor, eq);
ASSERT_EQ (boolector_sat (btor), BOOLECTOR_SAT);
boolector_release_sort (btor, sort);
boolector_release (btor, const1);
boolector_release (btor, const2);
boolector_release (btor, const3);
boolector_release (btor, concat);
boolector_release (btor, eq);
boolector_delete (btor);
btor_mem_freestr (d_mm, result);
}
}
}
}
static void cond_test_misc (int32_t low, int32_t high, uint32_t rwl)
{
assert (low > 0);
assert (low <= high);
Btor *btor;
int32_t i = 0;
int32_t j = 0;
int32_t k = 0;
int32_t max = 0;
int32_t result = 0;
int32_t num_bits = 0;
for (num_bits = low; num_bits <= high; num_bits++)
{
max = btor_util_pow_2 (num_bits);
for (i = 0; i < max; i++)
{
for (j = 0; j < max; j++)
{
for (k = 0; k <= 1; k++)
{
BoolectorSort sort, sort1;
BoolectorNode *const1, *const2, *const3, *const4, *eq, *cond;
btor = boolector_new ();
boolector_set_opt (btor, BTOR_OPT_REWRITE_LEVEL, rwl);
result = k ? i : j;
sort = boolector_bitvec_sort (btor, num_bits);
sort1 = boolector_bitvec_sort (btor, 1);
const1 = boolector_unsigned_int (btor, i, sort);
const2 = boolector_unsigned_int (btor, j, sort);
const3 = boolector_unsigned_int (btor, k, sort1);
cond = boolector_cond (btor, const3, const1, const2);
const4 = boolector_unsigned_int (btor, result, sort);
eq = boolector_eq (btor, cond, const4);
boolector_assert (btor, eq);
ASSERT_EQ (boolector_sat (btor), BOOLECTOR_SAT);
boolector_release_sort (btor, sort);
boolector_release_sort (btor, sort1);
boolector_release (btor, const1);
boolector_release (btor, const2);
boolector_release (btor, const3);
boolector_release (btor, const4);
boolector_release (btor, cond);
boolector_release (btor, eq);
boolector_delete (btor);
}
}
}
}
}
void read_test_misc (int32_t low, int32_t high, uint32_t rwl)
{
assert (low > 0);
assert (low <= high);
Btor *btor;
int32_t i = 0;
int32_t j = 0;
int32_t max = 0;
int32_t num_bits = 0;
for (num_bits = low; num_bits <= high; num_bits++)
{
max = btor_util_pow_2 (num_bits);
for (i = 0; i < max; i++)
{
for (j = 0; j < max; j++)
{
BoolectorSort elem_sort, index_sort, array_sort;
BoolectorNode *const1, *const2, *const3, *const4;
BoolectorNode *eq1, *eq2, *array, *read1, *read2;
btor = boolector_new ();
boolector_set_opt (btor, BTOR_OPT_REWRITE_LEVEL, rwl);
elem_sort = boolector_bitvec_sort (btor, num_bits);
index_sort = boolector_bitvec_sort (btor, 1);
array_sort = boolector_array_sort (btor, index_sort, elem_sort);
array = boolector_array (btor, array_sort, "array");
const1 = boolector_false (btor);
const2 = boolector_true (btor);
const3 = boolector_unsigned_int (btor, i, elem_sort);
const4 = boolector_unsigned_int (btor, j, elem_sort);
read1 = boolector_read (btor, array, const1);
read2 = boolector_read (btor, array, const2);
eq1 = boolector_eq (btor, const3, read1);
eq2 = boolector_eq (btor, const4, read2);
boolector_assert (btor, eq1);
boolector_assert (btor, eq2);
ASSERT_EQ (boolector_sat (btor), BOOLECTOR_SAT);
boolector_release_sort (btor, elem_sort);
boolector_release_sort (btor, index_sort);
boolector_release_sort (btor, array_sort);
boolector_release (btor, eq1);
boolector_release (btor, eq2);
boolector_release (btor, read1);
boolector_release (btor, read2);
boolector_release (btor, const1);
boolector_release (btor, const2);
boolector_release (btor, const3);
boolector_release (btor, const4);
boolector_release (btor, array);
boolector_delete (btor);
}
}
}
}
};
TEST_F (TestMisc, slice)
{
slice_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
slice_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
TEST_F (TestMisc, uext)
{
ext_test_misc (UEXT, BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
ext_test_misc (UEXT, BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
TEST_F (TestMisc, sext)
{
ext_test_misc (SEXT, BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
ext_test_misc (SEXT, BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
TEST_F (TestMisc, concat)
{
concat_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
concat_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
TEST_F (TestMisc, cond)
{
cond_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
cond_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
TEST_F (TestMisc, read)
{
read_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 1);
read_test_misc (BTOR_TEST_MISC_LOW, BTOR_TEST_MISC_HIGH, 0);
}
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