The source code for the sample program is available in the sample applications zip file on the Oracle Developer Studio 12.6 downloads web page at http://www.oracle.com/technetwork/server-storage/developerstudio/downloads/index.html. After accepting the license and downloading, you can unpack it in a directory of your choice.
The sample application is located in the CodeAnalyzer subdirectory of the OracleDeveloperStudio-12.6-Samples directory.
The sample directory contains the following source code files:
main.c
previse_1.c
previse_all.c
sample1.c
sample2.c
sample3.c
sample4.c