Add some more unit tests for result classification.
Add some more unit tests for result classification.

This tests what happens if a tool finds a different property violation
than expected in the memory-safety category.

martin-neuhaeusser/benchexec,sosy-lab/benchexec,IljaZakharov/benchexec,sosy-lab/benchexec,sosy-lab/benchexec,ultimate-pa/benchexec,dbeyer/benchexec,martin-neuhaeusser/benchexec,ultimate-pa/benchexec,dbeyer/benchexec,ultimate-pa/benchexec,dbeyer/benchexec,sosy-lab/benchexec,IljaZakharov/benchexec,dbeyer/benchexec,sosy-lab/benchexec,martin-neuhaeusser/benchexec,sosy-lab/benchexec,IljaZakharov/benchexec,IljaZakharov/benchexec,martin-neuhaeusser/benchexec,ultimate-pa/benchexec,ultimate-pa/benchexec,ultimate-pa/benchexec