1. A virtual computer system comprising one or more processors configured to implement a plurality of virtual machines and a hypervisor, the one or more processors including: a trace information collecting section in the hypervisor configured to collect trace information including an operational state of a process on a first virtual machine of the plurality of virtual machines from a context saving area corresponding to the first virtual machine, the process being automatically executed when an interrupt is generated; a plurality of symbol map information collecting sections in the plurality of virtual machines, respectively, configured to automatically collect symbol map information for identifying a process operating on each of the plurality of virtual machines from a management area included in each of the plurality of virtual machines to send the collected symbol map information to the hypervisor in response to the interrupt; a data sending section configured to send the collected symbol map information from each of the plurality of virtual machines; an analysis processing section in the hypervisor configured to associate the trace information with the symbol map information for each of the processes operating on each of the plurality of virtual machines, wherein the trace information includes an execution address and a page table address value for each of the plurality of virtual machines, and the symbol map information includes a page table address and a process ID which are automatically set when a process operates on each of the plurality of virtual machines, and for each of the processes, the analysis processing section is configured to automatically identify a process ID by searching for the page table address in the symbol map information by using the page table address value in the trace information, to obtain a process name allocated to the process ID, and the analysis processing section is further configured to automatically identify a function address by searching for the page table address in the symbol map information by using the execution address in the trace information, to obtain a function name allocated to an area of the function address including the execution address; and performing a management operation to a virtual machine identified by the function name.