make verify hangs

[vzaliva]

make verify pass 8-bit tests but hangs on 16-bit.
Coq 8.12.2 and OCaml 4.07.1.

src/extraction/verif.sh
patching file axioms8.ml
Hunk #1 succeeded at 159 (offset 5 lines).
Hunk #2 FAILED at 836.
1 out of 2 hunks FAILED -- saving rejects to file axioms8.ml.rej
patching file axioms16.ml
Hunk #1 succeeded at 159 (offset 5 lines).
Hunk #2 FAILED at 836.
1 out of 2 hunks FAILED -- saving rejects to file axioms16.ml.rej
Verifying 8bit
Finished, 8 targets (8 cached) in 00:00:00.
... Ok
Verifying 16bit
Finished, 8 targets (8 cached) in 00:00:00.

[vzaliva]

From the paper[1]: "The execution of the OCaml-extracted test takes 4 seconds for to cover all 8-bits integers. The equivalent test for 16-bit integers did not complete after several hours"

I left the test running overnight to see if it ever completes for 16-bit integers on my machine. Has it ever been successfully run? If not, perhaps it is worth mentioning in README.

[1] https://hal.archives-ouvertes.fr/hal-01251943/document

[vzaliva]

Finished overnight. The diff is still failing but I will address this in PR