Added a new parameter 'partition' to the methods getInitialState und getInitialPrecision of the interface ConfigurableProgramAnalysis. This is useful for running an analysis on two disjoint/partitioned state spaces in parallel.  



git-svn-id: https://svn.sosy-lab.org/software/cpachecker/branches/arrays@14915 4712c6d2-40bb-43ae-aa4b-fec3f1bdfe4c