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import java.lang.Thread;
import org.cprover.CProver;
public class A
{
static int x = 0;
// verification success
public void me()
{
x = 5;
CProver.startThread(333);
x = 10;
CProver.endThread(333);
assert(x == 5 || x == 10);
}
// verification failed
public void me2()
{
x = 5;
CProver.startThread(333);
x = 10;
CProver.endThread(333);
assert(x == 10);
}
// Known-bug, thread id mismatch, this should be detected by the conversation
// process. It is currently not and thus will result in an assertion violation
// during symbolic execution.
public void me3()
{
x = 5;
CProver.startThread(22333);
x = 10;
CProver.endThread(333);
assert(x == 10);
}
// Known-bug, see: https://github.com/diffblue/cbmc/issues/1630
public void me4()
{
int x2 = 10;
CProver.startThread(22333);
x = x2;
assert(x == 10);
CProver.endThread(333);
}
// Known-bug, symex cannot handle nested thread-blocks
public void me5()
{
CProver.startThread(333);
x = 5;
CProver.startThread(222);
x = 8;
CProver.endThread(222);
CProver.endThread(333);
assert(x == 5 || x == 0 || x == 8);
}
}
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