/usr/include/ompl/base/ is in libompl-dev 1.2.1+ds1-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ompl/base/Cost.h
/usr/include/ompl/base/DiscreteMotionValidator.h
/usr/include/ompl/base/GenericParam.h
/usr/include/ompl/base/Goal.h
/usr/include/ompl/base/GoalTypes.h
/usr/include/ompl/base/MotionValidator.h
/usr/include/ompl/base/OptimizationObjective.h
/usr/include/ompl/base/Path.h
/usr/include/ompl/base/Planner.h
/usr/include/ompl/base/PlannerData.h
/usr/include/ompl/base/PlannerDataGraph.h
/usr/include/ompl/base/PlannerDataStorage.h
/usr/include/ompl/base/PlannerStatus.h
/usr/include/ompl/base/PlannerTerminationCondition.h
/usr/include/ompl/base/PrecomputedStateSampler.h
/usr/include/ompl/base/ProblemDefinition.h
/usr/include/ompl/base/ProjectionEvaluator.h
/usr/include/ompl/base/ScopedState.h
/usr/include/ompl/base/SolutionNonExistenceProof.h
/usr/include/ompl/base/SpaceInformation.h
/usr/include/ompl/base/State.h
/usr/include/ompl/base/StateSampler.h
/usr/include/ompl/base/StateSamplerArray.h
/usr/include/ompl/base/StateSpace.h
/usr/include/ompl/base/StateSpaceTypes.h
/usr/include/ompl/base/StateStorage.h
/usr/include/ompl/base/StateValidityChecker.h
/usr/include/ompl/base/TypedSpaceInformation.h
/usr/include/ompl/base/TypedStateValidityChecker.h
/usr/include/ompl/base/ValidStateSampler.h
/usr/include/ompl/base/goals/
/usr/include/ompl/base/goals/GoalLazySamples.h
/usr/include/ompl/base/goals/GoalRegion.h
/usr/include/ompl/base/goals/GoalSampleableRegion.h
/usr/include/ompl/base/goals/GoalState.h
/usr/include/ompl/base/goals/GoalStates.h
/usr/include/ompl/base/objectives/
/usr/include/ompl/base/objectives/MaximizeMinClearanceObjective.h
/usr/include/ompl/base/objectives/MechanicalWorkOptimizationObjective.h
/usr/include/ompl/base/objectives/MinimaxObjective.h
/usr/include/ompl/base/objectives/PathLengthOptimizationObjective.h
/usr/include/ompl/base/objectives/StateCostIntegralObjective.h
/usr/include/ompl/base/objectives/VFMechanicalWorkOptimizationObjective.h
/usr/include/ompl/base/objectives/VFUpstreamCriterionOptimizationObjective.h
/usr/include/ompl/base/samplers/
/usr/include/ompl/base/samplers/GaussianValidStateSampler.h
/usr/include/ompl/base/samplers/InformedStateSampler.h
/usr/include/ompl/base/samplers/MaximizeClearanceValidStateSampler.h
/usr/include/ompl/base/samplers/MinimumClearanceValidStateSampler.h
/usr/include/ompl/base/samplers/ObstacleBasedValidStateSampler.h
/usr/include/ompl/base/samplers/UniformValidStateSampler.h
/usr/include/ompl/base/samplers/informed/
/usr/include/ompl/base/samplers/informed/PathLengthDirectInfSampler.h
/usr/include/ompl/base/samplers/informed/RejectionInfSampler.h
/usr/include/ompl/base/spaces/
/usr/include/ompl/base/spaces/DiscreteStateSpace.h
/usr/include/ompl/base/spaces/DubinsStateSpace.h
/usr/include/ompl/base/spaces/RealVectorBounds.h
/usr/include/ompl/base/spaces/RealVectorStateProjections.h
/usr/include/ompl/base/spaces/RealVectorStateSpace.h
/usr/include/ompl/base/spaces/ReedsSheppStateSpace.h
/usr/include/ompl/base/spaces/SE2StateSpace.h
/usr/include/ompl/base/spaces/SE3StateSpace.h
/usr/include/ompl/base/spaces/SO2StateSpace.h
/usr/include/ompl/base/spaces/SO3StateSpace.h
/usr/include/ompl/base/spaces/TimeStateSpace.h