First You have to use cov-build to create intermediate files.With this command u have to specify the make (makefile). After that It will create emit file where you mentioned in cov-build command.
Then You have to use cov-analyze to create analyze report.If there is any Bugs found means it will return on terminal.
To show that errors in html file you have to use cov-format-errors.This command will create error directory.In that directory you can find the html statistical report for your analyzed code..
Example commands:
(if the program is in same folder(bin), it will create emit file in current directory(bin/emit)).
cov-build --dir . gcc hi.c
(if you want to build for a single .c file)
OR
cov-build --dir . make
(to use make command You have to create makefile.(vi makefile in bin,write your own script about compiling programs which is going to be build by cov-build))
cov-analyze --dir .
cov-format-errors --dir .