Don't throw exception if multiple <require> tags are used in benchmark definition, this is allowed as long as they do not contain contradicting attributes.
Don't throw exception if multiple <require> tags are used
in benchmark definition, this is allowed as long as they
do not contain contradicting attributes.

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