Submitter Variables Constraints Density Status Group Objective MPS File
C. Cardonha 199999 198450 1.63352e-05 easy 81 vpphard2.mps.gz

Vehicle positioning problem instance. Solved using CPLEX 12.4 in 43987 seconds (May 2012). Solved using Gurobi 5.6.2 in 124 seconds (May 2014).Solved using CPLEX 12.6 in 225 seconds (May 2014).

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 199999 139234
Constraints 198450 136760
Binaries 199999 139234
Integers 0 0
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 1.63352e-05 2.99166e-05
Nonzeroes 648340 569661
Constraint Classification Properties
Original Presolved
Total 198450 136760
Empty 925 0
Free 0 0
Singleton 42851 0
Aggregations 0 0
Precedence 17914 0
Variable Bound 0 0
Set Partitioning 592 592
Set Packing 0 0
Set Covering 0 0
Cardinality 333 333
Invariant Knapsack 135835 135835
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 0 0
General Linear 0 0
Indicator 0 0

Structure

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

value min median mean max
Components 1.579784
Constraint % 1.08307 2.69098 3.26826 3.65518
Variable % 1.10246 2.70270 3.27865 3.66290
Score 0.965230

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 81 81 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to vpphard2 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
vpphard 51471 51471 0 0 47280 372305 C. Cardonha easy 5
tanglegram4 56048 56048 0 0 110404 331212 Falk Hueffner huefner easy 10696
tanglegram6 9182 9182 0 0 17712 53136 Falk Hueffner huefner easy 1224
toll-like 2883 2883 0 0 4408 13224 Falk Hueffner huefner easy 610
neos-950242 5760 5520 240 0 34224 104160 NEOS Server Submission neos-pseudoapplication-72 easy 4

Reference

No bibliographic information available

Last Update Nov 09, 2018 by Gregor Hendel
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