The offending lines are as follows: 00062 if (GetVerbose()) G4cout<<"G4TrajectoryOriginVolumeFilter processing trajectory with originating volume "<<G4endl; 00063 G4cout<<"logical and physical names: "<<logicalName<<" "<<physicalName<<G4endl; should read : if (GetVerbose()) { G4cout<<"G4TrajectoryOriginVolumeFilter processing trajectory with originating volume "<<G4endl; G4cout<<"logical and physical names: "<<logicalName<<" "<<physicalName<<G4endl; } I am trying to run with verbosity false; however, the logical and physical names are being printed to stdout.
Many thanks for reporting this. Fixed for Geant4 9.6.beta.