Goodbye CVC4, hello cvc5! (#6371)

This commits changes the build system to cvc5 and removes the remaining
occurrences of CVC4. It further cleans up outdated/unused scripts in contrib/.

1 files changed, 0 insertions, 61 deletions

diff --git a/examples/SimpleVC.py b/examples/SimpleVC.py
deleted file mode 100644
index 05857e737..000000000
--- a/examples/SimpleVC.py
+++ /dev/null
@@ -1,61 +0,0 @@
-#! /usr/bin/python
-###############################################################################
-# Top contributors (to current version):
-#   Morgan Deters, Aina Niemetz
-#
-# This file is part of the cvc5 project.
-#
-# Copyright (c) 2009-2021 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.
-# #############################################################################
-#
-# A simple demonstration of the Python interface
-#
-# A simple demonstration of the Python interface.  Compare to the
-# C++ interface in simple_vc_cxx.cpp; they are quite similar.
-#
-# To run from a build directory, use something like:
-#
-#   PYTHONPATH=src/bindings/python python ../examples/SimpleVC.py
-##
-
-import CVC4
-from CVC4 import ExprManager, SmtEngine, Rational, Expr
-
-import sys
-
-def main():
-  em = ExprManager()
-  smt = SmtEngine(em)
-
-  # Prove that for integers x and y:
-  #   x > 0 AND y > 0  =>  2x + y >= 3
-
-  integer = em.integerType()
-
-  x = em.mkVar("x", integer)
-  y = em.mkVar("y", integer)
-  zero = em.mkConst(Rational(0))
-
-  x_positive = em.mkExpr(CVC4.GT, x, zero)
-  y_positive = em.mkExpr(CVC4.GT, y, zero)
-
-  two = em.mkConst(Rational(2))
-  twox = em.mkExpr(CVC4.MULT, two, x)
-  twox_plus_y = em.mkExpr(CVC4.PLUS, twox, y)
-
-  three = em.mkConst(Rational(3))
-  twox_plus_y_geq_3 = em.mkExpr(CVC4.GEQ, twox_plus_y, three)
-
-  formula = Expr(em.mkExpr(CVC4.AND, x_positive, y_positive)).impExpr(Expr(twox_plus_y_geq_3))
-
-  print("Checking entailment of formula " + formula.toString() + " with CVC4.")
-  print("CVC4 should report ENTAILED .")
-  print("Result from CVC4 is: " + smt.checkEntailed(formula).toString())
-
-  return 0
-
-if __name__ == '__main__':
-  sys.exit(main())