Submitter Variables Constraints Density Status Group Objective MPS File
Gleb Belov 48104 56312 6.15232e-04 easy k1mushroom -3288 k1mushroomi.mps.gz

These are the instances from MiniZinc Challenges 2012-2016 (see www.minizinc.org), compiled for MIP WITH INDICATOR CONSTRAINTS using the develop branch of MiniZinc and CPLEX 12.7.1 on 30 April 2017. Thus, these instances can only be handled by solvers accepting indicator constraints. For instances compiled with big-M/domain decomposition only, see my previous submission to MIPLIB.To recompile, create a directory MODELS, a list lst12_16.txt of the instances with full paths to mzn/dzn files of each instance per line, and say$> ~/install/libmzn/tests/benchmarking/mzn-test.py -l ../lst12_16.txt –slvPrf MZN-CPLEX –debug 1 –addOption “–timeout 3 -D fIndConstr=true -D fMIPdomains=false” –useJoinedName “–writeModel MODELS_IND/%s.mps” Alternatively, you can compile individual instance as follows: $> mzn-cplex -v -s -G linear –output-time ../challenge_2012_2016/mznc2016_probs/zephyrus/zephyrus.mzn ../challenge_2012_2016/mznc2016_p/zephyrus/14__8__6__3.dzn -a –timeout 3 -D fIndConstr=true -D fMIPdomains=false –writeModel MODELS_IND/challenge_2012_2016mznc2016_probszephyruszephyrusmzn-challenge_2012_2016mznc2016_probszephyrus14__8__6__3dzn.mps

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 48104 48103
Constraints 56312 56312
Binaries 16419 16418
Integers 31685 31685
Continuous 0 0
Implicit Integers 16418 31512
Fixed Variables 1 0
Nonzero Density 0.000615232 0.000615245
Nonzeroes 1666560 1666560
Constraint Classification Properties
Original Presolved
Total 39894 39894
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 8209 8209
Precedence 0 16246
Variable Bound 16418 172
Set Partitioning 0 0
Set Packing 0 0
Set Covering 0 0
Cardinality 0 0
Invariant Knapsack 0 0
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 0 0
General Linear 15267 15267
Indicator 16418 16418

Structure

Available nonzero structure and decomposition information. Further information can be found here.

value min median mean max
Components
Constraint %
Variable %
Score

Best Known Solution(s)

No solution available for k1mushroomi .

Similar instances in collection

The following instances are most similar to k1mushroomi in the collection. This similarity analysis is based on 100 scaled instance features describing properties of the variables, objective function, bounds, constraints, and right hand sides.

Instance Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Status Objective
splice1k1i 19513 6504 13009 0 22765 1780530 Gleb Belov splice hard -394
shipschedule3shipsi 10513 4817 4343 1353 16727 31243 Gleb Belov shipschedule easy -265650
shipschedule8shipsmixuci 25206 13635 9763 1808 37821 75480 Gleb Belov shipschedule easy -389100
shipschedule6shipsmixi 18770 10310 7104 1356 27823 55903 Gleb Belov shipschedule easy -301650
diameterc-msts-v40a100d5i 14629 5611 5304 3714 21131 40288 Gleb Belov diameterc easy 729

Reference

@article{MZChPhil2010,
year={2010},
journal={Constraints},
volume={15},
number={3},
title={Philosophy of the {MiniZinc} challenge},
publisher={Springer US},
author={Stuckey, P. J. and Becket, R. and Fischer, J.},
pages={307--316},
}
@incollection{BelovEtAl_Lin16,
author="Belov, G.
and Stuckey, P. J.
and Tack, G.
and Wallace, M.",
editor="Rueher, M.",
title="Improved Linearization of Constraint Programming Models",
bookTitle="Principles and Practice of Constraint Programming: 22nd International Conference, CP 2016, Proceedings",
year="2016",
publisher="Springer International Publishing",
pages="49--65",
}

Last Update Nov 19, 2018 by Gregor Hendel
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