Submitter Variables Constraints Density Status Group Objective MPS File
Elmar Swarat 147912 17245 7.94955e-04 hard bab -357544.3115 bab2.mps.gz

Vehicle Routing with profits and an integrated crew scheduling formulated by two coupled multi-commodity flow problems.

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 147912 146248
Constraints 17245 17007
Binaries 147912 146248
Integers 0 0
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.000794955 0.000813331
Nonzeroes 2027730 2022950
Constraint Classification Properties
Original Presolved
Total 17245 17007
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 52 4
Precedence 0 0
Variable Bound 0 0
Set Partitioning 1337 1481
Set Packing 308 296
Set Covering 0 6
Cardinality 2096 1904
Invariant Knapsack 12216 12112
Equation Knapsack 1072 1072
Bin Packing 0 0
Knapsack 36 8
Integer Knapsack 0 0
Mixed Binary 128 124
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 2.193125
Constraint % 0.1999180 0.572364 0.611513 2.23437
Variable % 0.0622231 0.643926 0.238636 8.49516
Score 0.871287

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 -357544.3 -357544.3 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to bab2 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
bab5 21600 21600 0 0 4964 155520 Elmar Swarat bab easy -106411.8401
bab3 393800 393800 0 0 23069 3301840 Elmar Swarat bab open -656009.6926*
bab6 114240 114240 0 0 29904 1283180 Elmar Swarat bab hard -284248.2307
neos-3555904-turama 37461 37461 0 0 146493 793605 Hans Mittelmann neos-pseudoapplication-81 easy -34.7
n2seq36q 22480 22480 0 0 2565 183292 R. Meirich nseq easy 52200

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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