Copyright

The copyright and (lack of) warranty information most relevant to you is in the file COPYING that you got with your CVC4 source code, or received with any binary packaging of CVC4. The 1.3 release is covered by the following copyright and disclaimers.

CVC4

CVC4 is copyright (C) 2009, 2010, 2011, 2012, 2013 New York University
and The University of Iowa.  All rights reserved.

CVC4 is open-source; distribution is under the terms of the modified BSD
license.  However, certain builds of CVC4 link against GPLed libraries,
and therefore the use of these builds is restricted in non-open-source
projects.  See below for a discussion of CLN and how to ensure you have
a build that doesn't link against GPLed libraries.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT OWNERS 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
OWNERS 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.

MiniSat

CVC4 incorporates MiniSat code, excluded from the above copyright.
See src/sat/minisat. Its copyright:

  
MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
             Copyright (c) 2007-2010  Niklas Sorensson

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

autogen.sh

CVC4 incorporates the script “autogen.sh”, excluded from the above copyright.
See autogen.sh. Its copyright:

  
Copyright (c) 2005-2009 United States Government as represented by
the U.S. Army Research Laboratory.

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

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

2. 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.

3. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

doxygen.am

CVC4 incorporates the script “doxygen.am”, excluded from the above copyright.
See config/doxygen.am. Its copyright:

Copyright (C) 2004 Oren Ben-Kiki

This file is distributed under the same terms as the Automake macro files.

pkg.m4

CVC4 incorporates the m4 macro file “pkg.m4″, excluded from the above
copyright. See config/pkg.m4. Its copyright:

Copyright (c) 2004 Scott James Remnant <scott@netsplit.com>.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

As a special exception to the GNU General Public License, if you
distribute this file as part of a program that contains a
configuration script generated by Autoconf, you may include it under
the same distribution terms that you use for the rest of that program.

ax_tls.m4

CVC4 incorporates the m4 macro file “ax_tls.m4″, excluded from the above
copyright and downloaded from here. See config/ax_tls.m4. Its copyright:

  
Copyright (c) 2008 Alan Woodland <ajw05@aber.ac.uk>
Copyright (c) 2010 Diego Elio Pettenò <flameeyes@gmail.com>

This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.

You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.

As a special exception, the respective Autoconf Macro's copyright owner
gives unlimited permission to copy, distribute and modify the configure
scripts that are the output of Autoconf when processing the Macro. You
need not follow the terms of the GNU General Public License when using
or distributing such scripts, even though portions of the text of the
Macro appear in them. The GNU General Public License (GPL) does govern
all other use of the material that constitutes the Autoconf Macro.

This special exception to the GPL applies to versions of the Autoconf
Macro released by the Autoconf Archive. When you make and distribute a
modified version of the Autoconf Macro, you may extend this special
exception to the GPL to apply to your modified version as well.

boost.m4

CVC4 incorporates the m4 macro file “boost.m4″, excluded from the above
copyright and downloaded from here. See config/boost.m4. Its copyright:

Copyright (C) 2007  Benoit Sigoure <tsuna@lrde.epita.fr>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permission under section 7 of the GNU General Public
License, version 3 ("GPLv3"):

If you convey this file as part of a work that contains a
configuration script generated by Autoconf, you may do so under
terms of your choice.

Boost

CVC4 incorporates some code from Boost (see src/util/channel.h). This
is covered by the Boost Software License, version 1.0, available here and reprinted below:

Boost Software License - Version 1.0 - August 17th, 2003

Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:

The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

ANTLR3

CVC4 incorporates code from ANTLR3, excluded from the above copyright.
See http://www.antlr.org/, and the files src/parser/bounded_token_buffer.h,
src/parser/bounded_token_buffer.cpp, and src/parser/antlr_input_imports.cpp.
Their copyright:

[The "BSD licence"]
Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC
http://www.temporal-wave.com
http://www.linkedin.com/in/jimidle

All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. 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.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

CLN

Certain builds of CVC4 link against a GPLed library, CLN, the Class Library
for Numbers, available here here.

Please be advised that as this class library is covered under the GPLv3, if
you choose to use the combined work, “CVC4+CLN,” by building CVC4 with CLN,
then it is also covered under the GPLv3. If you want to make sure you build
a version of CVC4 that uses libgmp, the GNU Multiple Precision Arithmetic
Library, configure CVC4 with “–with-gmp” before building (though that is the
default). It can then be used in contexts where you want to license CVC4
under the (modified) BSD license.

GLPK

Certain builds of CVC4 link against a GPLed library, GLPK, the GNU Linear
Programming Kit, available here here.

Please be advised that as this library is covered under the GPLv3, if
you choose to use the combined work, “CVC4+GLPK,” by building CVC4 with
GLPK, then it is also covered under the GPLv3. If you want to make sure
you build a version of CVC4 that does not use GLPK, configure CVC4 with
“–without-glpk” before building (though that is the default). It can
then be used in contexts where you want to license CVC4 under the
(modified) BSD license.

Leave a Reply