From: guykatzz <katz911@gmail.com>
Date: Thu, 6 Oct 2016 06:39:48 +0000 (-0700)
Subject: Added an option that allow empty dependencies when attempting to minimize preprocessi... 
X-Git-Tag: cvc5-1.0.0~6028^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=edce1662b001dd6f229a25685fb4de6789ff008d;p=cvc5.git

Added an option that allow empty dependencies when attempting to minimize preprocessing holes
---

diff --git a/src/options/proof_options b/src/options/proof_options
index 322ef5a9c..789513334 100644
--- a/src/options/proof_options
+++ b/src/options/proof_options
@@ -12,6 +12,9 @@ option aggressiveCoreMin --aggressive-core-min bool :default false
  turns on aggressive unsat core minimization (experimental)
 
 option fewerPreprocessingHoles --fewer-preprocessing-holes bool :default false :read-write
-  try to eliminate preprocessing holes in proofs
+ try to eliminate preprocessing holes in proofs
+
+option allowEmptyDependencies --allow-empty-dependencies bool :default false
+ if unable to track the dependencies of a rewritten/preprocessed assertion, fail silently
 
 endmodule
diff --git a/src/proof/proof_manager.cpp b/src/proof/proof_manager.cpp
index 1c9bb0ff0..5ce615366 100644
--- a/src/proof/proof_manager.cpp
+++ b/src/proof/proof_manager.cpp
@@ -272,6 +272,10 @@ void ProofManager::traceDeps(TNode n, ExprSet* coreAssertions) {
   } else {
     Debug("cores") << " -- NOT IN INPUT CORE LIST!" << std::endl;
     if(d_deps.find(n) == d_deps.end()) {
+      if (options::allowEmptyDependencies()) {
+        Debug("cores") << " -- Could not track cause assertion. Failing silently." << std::endl;
+        return;
+      }
       InternalError("Cannot trace dependence information back to input assertion:\n`%s'", n.toString().c_str());
     }
     Assert(d_deps.find(n) != d_deps.end());