At the end of the vmware.log file, located in the virtual machine directory, you see this message:
VMX has left the building: 0
Environment
VMware vSphere ESXi 5.5
VMware ESXi 4.0.x Installable
VMware ESXi 4.0.x Embedded
VMware ESXi 4.1.x Embedded
VMware vSphere ESXi 5.1
VMware vSphere ESXi 5.0
VMware ESXi 4.1.x Installable
Resolution
This is an informational message and is caused by powering off a Virtual Machine or performing a vMotion of the Virtual Machine to a new host. It can be safely ignored.