/usr/ is in libghc-presburger-prof 1.3.1-3build1.
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/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/presburger-1.3.1-8vpb1K8V7jL6H3PN187B5W/Data/Integer/SAT.p_hi
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/presburger-1.3.1-8vpb1K8V7jL6H3PN187B5W/libHSpresburger-1.3.1-8vpb1K8V7jL6H3PN187B5W_p.a
/usr/share/doc/libghc-presburger-prof/
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