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Add non-determinism to array_address_of test #7108

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Merged
thomasspriggs merged 2 commits into from
Sep 8, 2022
Merged

Add non-determinism to array_address_of test #7108

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443d4f0
Add non-determinism to array_address_of test
thomasspriggs Sep 7, 2022
1b5fa34
Add test covering size of two differently sized arrays
thomasspriggs Sep 8, 2022
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19 changes: 19 additions & 0 deletions regression/cbmc-incr-smt2/arrays/address_of_two_array_sizes.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
int main()
{
int example_array1[10000];
char example_array2[20000];
void *foo;
__CPROVER_bool choice = nondet___CPROVER_bool();
if(choice)
foo = example_array1;
else
foo = example_array2;
__CPROVER_assert(
foo != example_array1 || __CPROVER_OBJECT_SIZE(foo) == 40000,
"Array condition 1");
__CPROVER_assert(__CPROVER_OBJECT_SIZE(foo) == 40000, "Array condition 2");
__CPROVER_assert(
foo != example_array2 || __CPROVER_OBJECT_SIZE(foo) == 20000,
"Array condition 3");
__CPROVER_assert(__CPROVER_OBJECT_SIZE(foo) == 20000, "Array condition 4");
}
17 changes: 17 additions & 0 deletions regression/cbmc-incr-smt2/arrays/address_of_two_array_sizes.desc
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
CORE
address_of_two_array_sizes.c
--verbosity 10
Passing problem to incremental SMT2 solving
address_of\(main\:\:1\:\:example_array1\!0\@1\[0\]\)
address_of\(main\:\:1\:\:example_array2\!0\@1\[0\]\)
line \d+ Array condition 1: SUCCESS
line \d+ Array condition 2: FAILURE
line \d+ Array condition 3: SUCCESS
line \d+ Array condition 4: FAILURE
^EXIT=10$
^SIGNAL=0$
--
--
Test that __CPROVER_OBJECT_SIZE returns the expected results in the case where
the pointer passed to it may point to one of 2 arrays, where each array has a
different size.
15 changes: 10 additions & 5 deletions regression/cbmc-incr-smt2/arrays/array_address_of.c
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Original file line number Diff line number Diff line change
@@ -1,8 +1,13 @@
int main()
{
int example_array[10000];
__CPROVER_assert(
__CPROVER_OBJECT_SIZE(example_array) == 40000, "Array condition 1");
__CPROVER_assert(
__CPROVER_OBJECT_SIZE(example_array) == 40001, "Array condition 2");
int example_array1[10000];
int example_array2[10000];
int *foo;
int choice;
if(choice)
foo = example_array1;
else
foo = example_array2;
__CPROVER_assert(__CPROVER_OBJECT_SIZE(foo) == 40000, "Array condition 1");
__CPROVER_assert(__CPROVER_OBJECT_SIZE(foo) == 40001, "Array condition 2");
}
4 changes: 3 additions & 1 deletion regression/cbmc-incr-smt2/arrays/array_address_of.desc
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@@ -1,7 +1,9 @@
CORE
array_address_of.c

--verbosity 10
Passing problem to incremental SMT2 solving
address_of\(main\:\:1\:\:example_array1\!0\@1\[0\]\)
address_of\(main\:\:1\:\:example_array2\!0\@1\[0\]\)
line \d+ Array condition 1: SUCCESS
line \d+ Array condition 2: FAILURE
^EXIT=10$
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