| A Basis for Verifying Multi-threaded Programs Recent countries visiting this post |  |
 | 7 | United States |
 | 3 | Russian Federation |
 | 1 | |
 | 1 | Japan |
| A Basis for Verifying Multi-threaded Programs Recent countries visiting this post | |
| 7 | United States |
| 3 | Russian Federation |
| 1 | |
| 1 | Japan |