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#include <assert.h>
int start_main = 0;
int mStartLock = 0;
int __COUNT__ = 0;
void __VERIFIER_atomic_acquire()
{
__CPROVER_assume(mStartLock == 0);
mStartLock = 1;
}
void __VERIFIER_atomic_release()
{
__CPROVER_assume(mStartLock == 1);
mStartLock = 0;
}
void __VERIFIER_atomic_thr1()
{
if(__COUNT__ == 0)
{
__COUNT__ = __COUNT__ + 1;
}
else
{
assert(0);
}
}
void thr1()
{
__VERIFIER_atomic_acquire();
start_main = 1;
__VERIFIER_atomic_thr1();
__VERIFIER_atomic_release();
}
void __VERIFIER_atomic_thr2()
{
if(__COUNT__ == 1)
{
__COUNT__ = __COUNT__ + 1;
}
else
{
assert(0);
}
}
void thr2()
{
__CPROVER_assume(start_main != 0);
__VERIFIER_atomic_acquire();
__VERIFIER_atomic_release();
__VERIFIER_atomic_thr2();
}
int main()
{
__CPROVER_ASYNC_1:
thr1();
thr2();
return 0;
}
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