Submitter Variables Constraints Density Status Group Objective MPS File
Gleb Belov 8211 16419 1.25945e-02 easy k1mushroom -3288 k1mushroom.mps.gz

Linearized Constraint Programming models of the MiniZinc Challenges 2012-2016. I should be able to produce versions with indicator constraints supported by Gurobi and CPLEX, however don’t know if you can use them and if there is a standard format. These MPS were produced by Gurobi 7.0.2 using the MiniZinc develop branch on eb536656062ca13325a96b5d0881742c7d0e3c38

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 8211 8210
Constraints 16419 16419
Binaries 8210 8209
Integers 1 1
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 1 0
Nonzero Density 0.0125945 0.0125960
Nonzeroes 1697950 1697950
Constraint Classification Properties
Original Presolved
Total 16419 16419
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 0 0
Set Partitioning 0 0
Set Packing 0 0
Set Covering 0 8209
Cardinality 0 0
Invariant Knapsack 86 0
Equation Knapsack 0 0
Bin Packing 8209 8209
Knapsack 8123 0
Integer Knapsack 0 0
Mixed Binary 0 0
General Linear 1 1
Indicator 0 0

Structure

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

value min median mean max
Components 0.301030
Constraint % 99.9939 99.9939 99.9939 99.9939
Variable % 99.9756 99.9756 99.9756 99.9756
Score 0.000244

Best Known Solution(s)

Find solutions below. Download the archive containing all solutions from the Download page.

ID Objective Exact Int. Viol Cons. Viol Obj. Viol Submitter Date Description
1 -3288 -3288 0 0 0 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to k1mushroom 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
splice1k1 3253 3252 1 0 6505 1761020 Gleb Belov splice hard -394
hypothyroid-k1 2602 2601 1 0 5195 433884 Gleb Belov hypothyroid easy -2851
usafa 228648 216357 12291 0 1377561 16485100 Christopher Daniel Richards open 160.1671357657*
neos-2991472-kalu 12105 12096 0 9 18170 13709400 Jeff Linderoth neos-pseudoapplication-77 open 12*
neos8 23228 23224 4 0 46324 313180 NEOS Server Submission neos-pseudoapplication-15 easy -3719

Reference

@Inbook{Belov2016,
author="Belov, Gleb
and Stuckey, Peter J.
and Tack, Guido
and Wallace, Mark",
editor="Rueher, Michel",
title="Improved Linearization of Constraint Programming Models",
bookTitle="Principles and Practice of Constraint Programming: 22nd International Conference, CP 2016, Toulouse, France, September 5-9, 2016, Proceedings",
year="2016",
publisher="Springer International Publishing",
pages="49--65",
isbn="978-3-319-44953-1",
doi="10.1007/978-3-319-44953-1_4",
url="http://dx.doi.org/10.1007/978-3-319-44953-1_4"
}

Last Update Nov 19, 2018 by Gregor Hendel
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