Open Source Fixedpoint Model-Checker version 2009

(C) Copyright IBM Corp. 2009
(C) Copyright ETH Zurich (Swiss Federal Institute of Technology) 2003,2007

All Rights Reserved.

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Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

- Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

- Neither the name of the ETH Zuerich, IBM, nor the names of its
  contributors may be used to endorse or promote products derived from
  this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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This program was originally written at ETH Zuerich 2003-2007 by
Sebastian Moedersheim, Boris Koepf, and Paul Hankes Drielsma, and
published under the BSD license in 2007.

This current version includes updates and new modules written by
Sebastian Moedersheim at the IBM Zurich Research Lab in 2007-2009 and
is also under BSD.

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To compile, you need the Glasgow Haskell Compiler (version 6.10.1; the
libraries change frequently, so too old or newer versions may not work)
as well as the lexer and parser generators for Haskell, Alex and
Happy. All these tools can be obtained from www.haskell.org for
various platforms. The included Makefile assumes they are available as
commands 'ghc', 'alex', and 'happy', respectively. 


Have fun!

Sebastian Moedersheim
smo@zurich.ibm.com