[1 of 3] Processing q
  Instantiating q
  [1 of 1] Compiling B                ( q/B.hs, nothing )
[2 of 3] Processing p2
  [1 of 1] Compiling A[sig]           ( p2/A.hsig, nothing )
[3 of 3] Processing p
  [1 of 3] Compiling A[sig]           ( p/A.hsig, nothing )
  [2 of 3] Compiling M                ( p/M.hs, nothing )
  [3 of 3] Instantiating p2