/usr/include/BALL/SOLVATION/ is in libball1.4-dev 1.4.3~beta1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/BALL/SOLVATION/PCMCavFreeEnergyProcessor.h
/usr/include/BALL/SOLVATION/claverieParameter.h
/usr/include/BALL/SOLVATION/electrostaticPotentialCalculator.h
/usr/include/BALL/SOLVATION/generalizedBornCase.h
/usr/include/BALL/SOLVATION/molecularSurfaceGrid.h
/usr/include/BALL/SOLVATION/ooiEnergy.h
/usr/include/BALL/SOLVATION/pair6_12InteractionEnergyProcessor.h
/usr/include/BALL/SOLVATION/pair6_12RDFIntegrator.h
/usr/include/BALL/SOLVATION/pairExpInteractionEnergyProcessor.h
/usr/include/BALL/SOLVATION/pairExpRDFIntegrator.h
/usr/include/BALL/SOLVATION/pierottiCavFreeEnergyProcessor.h
/usr/include/BALL/SOLVATION/poissonBoltzmann.h
/usr/include/BALL/SOLVATION/reissCavFreeEnergyProcessor.h
/usr/include/BALL/SOLVATION/solvation.doc
/usr/include/BALL/SOLVATION/solventDescriptor.h
/usr/include/BALL/SOLVATION/solventParameter.h
/usr/include/BALL/SOLVATION/sources.cmake
/usr/include/BALL/SOLVATION/uhligCavFreeEnergyProcessor.h