giolib045 "archaeology" (origin of giolib045.lib, giolib045.gds files)

I am using gpdk045 (v6.0), gsclib045 (v4.7), and giolib045 (v3.3) with a new deployment of Cadence tools: IC231, SPECTRE, PEGASUS, QUANTUS, DDI (Innovus, Genus), etc.

I am trying to replicate the behavior of an existing, site-wide install that's been "evolving" over a number of years.

This exisging environment references two files: giolib045.lib (8.5K in size), and giolib045.gds (63M in size), and nobody can remember where they actually came from.

Notably, they are *NOT* part of the current giolib045 v3.3 tarball available for download from Cadence.

giolib045.lib contains the comment string "/* Models written by Liberate 12.1 from Cadence Design Systems, Inc. on Mon Apr 22 15:22:43 PDT 2013 */", similar to a lot of other *.lib files shipping as part of the gsclib045_all_v4.7 tar ball (e.g., gsclib045_all_v4.7/gsclib045_hvt/timing/*.lib). The gsclib045 distribution also ships a bunch of gds files.

I was wondering whether giolib045 did, at any point in the past, contain a (timing?) library and .gds file? The presence or absence of these files appears to make a difference in (hold) timing analysis as part of innovus signoff, particularly when density "pressure" is exerted via the `floorPlan` command...

This is mainly an exercies in giolib045 "archaeology" -- did it ship these files in the past, or did some long-retired engineer "extract" them from the giolib045 tarball-as-shipped, via some long-forgotten magic tool invocation? :)

Many thanks in advance!