Copyright (c) 2010 - 2014, Adrian Balint, Ulm University, Institute of Theoretical Computer Science

Permission is hereby granted, free of charge, to use this software for
evaluation and research purposes.

This license does not allow this software to be used in a commercial context.

It is further prohibited to use this software or a substantial portions of
it in a submission to a competition or a similar competetive event, such as
the SAT, SMT or QBF competition, without explicit written permission of the
copyright holder.

However, competition organizers are allowed to use this software as part of
the evaluation process of a particular competition or competetive event, if
the copyright holder of this software submitted this software to this
particular competition explicitly.

This permission of using the software as part of a submission by the
copyright holder to a competition is only granted for one year and for one
particular instance of the competition to which this software was submitted
by the copyright holder.

All other usage is reserved.

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.