We will be meeting in Farris Engineering Center (FEC), Room 141. Bob's office is FEC 153.
Comment: This problem originated with C. J. van Alten. It is known that there are no countermodels with <= 14 elements.
Here is the version that was originally posted. Michael Kinyon found a 10-element countermodel with Mace4, which led to the discovery of the error in the problem statement.