Code Executes Multiple Times

I have compiled code for a simple router program. I am taking a class and I needed to create a program that would simulate routers updating their routing tables. The only real question i have left is i'm not sure if the program should update the routers so often. I have attached all the parts of the program, the exe file and the log file of the output. Can someone take a quick look and let me know if the program should call the update function so many times, as illustrated by the output?

Thanks!

Running one node0/1/2/3.c file will also call the main program prog3.c and the other nodes and initiate the update process between all of the other nodes, also known as routers.
node0.c
node1.c
node2.c
node3.c
prog3.c
RoutingLog.txt