Removes old proof code (#4964)

This deletes much of the old proof code. Basically everything but the minimal necessary infra-structure for producing unsat cores. That includes dependency tracking in preprocessing, the prop engine proof and the unsat core computation code in the old proof manager. These should also go once we fully integrate into master the new proof infrastructure.

It also cleans interfaces that were using old-proof-code-specific constructs (such as LemmaProofRecipe). When possible or when it made sense standalone local proof production code was kept, but deactivated (such is in the equality engine and in the arithmetic solver).

1 files changed, 0 insertions, 55 deletions

diff --git a/src/proof/skolemization_manager.h b/src/proof/skolemization_manager.h
deleted file mode 100644
index a2c61db4d..000000000
--- a/src/proof/skolemization_manager.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*********************                                                        */
-/*! \file skolemization_manager.h
- ** \verbatim
- ** Top contributors (to current version):
- **   Guy Katz, Tim King, Mathias Preiner
- ** This file is part of the CVC4 project.
- ** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
- ** in the top-level source directory) and their institutional affiliations.
- ** All rights reserved.  See the file COPYING in the top-level source
- ** directory for licensing information.\endverbatim
- **
- ** [[ Add lengthier description here ]]
-
- ** \todo document this file
-
- **/
-
-#include "cvc4_private.h"
-
-#ifndef CVC4__SKOLEMIZATION_MANAGER_H
-#define CVC4__SKOLEMIZATION_MANAGER_H
-
-#include <iostream>
-#include <unordered_map>
-
-#include "proof/proof.h"
-#include "util/proof.h"
-#include "expr/node.h"
-#include "theory/logic_info.h"
-#include "theory/substitutions.h"
-
-namespace CVC4 {
-
-class SkolemizationManager {
-public:
-  void registerSkolem(Node disequality, Node skolem);
-  bool hasSkolem(Node disequality);
-  Node getSkolem(Node disequality);
-  Node getDisequality(Node skolem);
-  bool isSkolem(Node skolem);
-  void clear();
-
-  std::unordered_map<Node, Node, NodeHashFunction>::const_iterator begin();
-  std::unordered_map<Node, Node, NodeHashFunction>::const_iterator end();
-
-private:
-  std::unordered_map<Node, Node, NodeHashFunction> d_disequalityToSkolem;
-  std::unordered_map<Node, Node, NodeHashFunction> d_skolemToDisequality;
-};
-
-}/* CVC4 namespace */
-
-
-
-#endif /* CVC4__SKOLEMIZATION_MANAGER_H */