picosat software package provides SAT solver with proof and core support, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install picosat
picosat is installed in your system.
Make ensure the picosat package were installed using the commands given below,
$ sudo dpkg-query -l | grep picosat *
You will get with picosat package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Science |
| Package | picosat |
| Version | 954-1 |
| Description | SAT solver with proof and core support |
| Sub Section | Science |