bddshell is a command line program for deductive database-based analysis. Its primary focus is software vulnerability detection. It acts as a front-end to a number of other programs, such as bddbddb and joeq.
Proshee is a Prolog type-inference system written in Prolog but depending on the banshee project in C (banshee.sourceforge.net). At present it manages very simple type-inference, but it has some problems with lists that need to be overcome.