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#!/usr/bin/env python
###############################################################################
# Top contributors (to current version):
# Daniel Larraz, Aina Niemetz, Andrew Reynolds
#
# This file is part of the cvc5 project.
#
# Copyright (c) 2009-2025 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 using the parser via Python API
##
import cvc5
if __name__ == "__main__":
tm = cvc5.TermManager()
slv = cvc5.Solver(tm)
# set that we should print success after each successful command
slv.setOption("print-success", "true")
# construct an input parser associated the solver above
parser = cvc5.InputParser(slv)
input = """
(set-logic QF_LIA)
(declare-fun a () Int)
(declare-fun b () Int)
(declare-fun c () Int)
(assert (> a (+ b c)))
(assert (< a b))
(assert (> c 0))
"""
parser.setStringInput(cvc5.InputLanguage.SMT_LIB_2_6, input, "MyInput")
# get the symbol manager of the parser, used when invoking commands below
sm = parser.getSymbolManager()
# parse commands until finished
while True:
cmd = parser.nextCommand()
if cmd.isNull():
break
print(f"Executing command {cmd}:")
# invoke the command on the solver and the symbol manager, print the result
print(cmd.invoke(slv, sm), end="")
print("Finished parsing commands")
# now, check sat with the solver
r = slv.checkSat()
print("expected: unsat")
print(f"result: {r}")
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