From dfff69ef604e02703575cb1cb15b2f77eda5f0f4 Mon Sep 17 00:00:00 2001
From: Frédéric Besson
Date: Thu, 28 Mar 2019 15:24:33 +0100
Subject: Re-implementation of zify

The logic is implemented in OCaml. By induction over the terms,
guided by registered Coq terms in ZifyInst.v, it generates a rewriting
lemma. The rewriting is only performed if there is some progress.  If
the rewriting fails (due to dependencies), a novel hypothesis is
generated.

This PR fixes #5155, fixes #8898, fixes #7886, fixes #10707, fixes #9848
ans fixes #10755.

The zify plugin is placed in the micromega directory.
(Though the reason is unclear, having it in a separate directory is
bad for efficiency.)  efficiency impact.

There are also a few improvements of lia/lra that are piggybacked.
- more aggressive pruning of useless hypotheses
- slightly optimised conjunctive normal form
- applies exfalso if conclusion is not in Prop
- removal of Timeout in test-suite
---
 plugins/micromega/MExtraction.v | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'plugins/micromega/MExtraction.v')

diff --git a/plugins/micromega/MExtraction.v b/plugins/micromega/MExtraction.v
index 1050bae303..80e0f3a536 100644
--- a/plugins/micromega/MExtraction.v
+++ b/plugins/micromega/MExtraction.v
@@ -55,7 +55,8 @@ Extract Constant Rinv   => "fun x -> 1 / x".
     extraction is only performed as a test in the test suite. *)
 (*Extraction "micromega.ml"
            Tauto.mapX Tauto.foldA Tauto.collect_annot Tauto.ids_of_formula Tauto.map_bformula
-           ZMicromega.cnfZ ZMicromega.Zeval_const ZMicromega.bound_problem_fr QMicromega.cnfQ
+           Tauto.abst_form
+           ZMicromega.cnfZ ZMicromega.bound_problem_fr ZMicromega.Zeval_const QMicromega.cnfQ
            List.map simpl_cone (*map_cone  indexes*)
            denorm Qpower vm_add
    normZ normQ normQ n_of_Z N.of_nat ZTautoChecker ZWeakChecker QTautoChecker RTautoChecker find.
-- 
cgit v1.2.3