neos-3754224-navua

numerics aggregations precedence variable_bound set_partitioning mixed_binary

Submitter Variables Constraints Density Status Group Objective MPS File
Jeff Linderoth 150228 232387 1.87039e-05 open neos-pseudoapplication-83 157909.0677610051* neos-3754224-navua.mps.gz

This instance was originally believed to be infeasible. The provided solution is feasible within tolerances as confirmed by the solution checker. Due to this inconsistency in solver results, this instance has been removed from the benchmark set since version 2.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 150228 150163
Constraints 232387 231412
Binaries 3574 3509
Integers 0 0
Continuous 146654 146654
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 1.87039e-05 1.87348e-05
Nonzeroes 652974 651024
Constraint Classification Properties
Original Presolved
Total 232387 231412
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 18214 18214
Precedence 22350 21375
Variable Bound 16508 16508
Set Partitioning 1320 1320
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 173995 173995
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
Constraint %
Variable %
Score

Best Known Solution(s)

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

## Warning in lapply(df["exactobjval"], as.numeric): NAs introduced by coercion
ID Objective Exact Int. Viol Cons. Viol Obj. Viol Submitter Date Description
3 157909.1 0 8e-07 0 Michael Winkler 2022-08-08 Found with Gurobi 9.5.0 running default Gurobi until the first solution was found and then using the NoRel heuristic to improve on that.
2 280713.6 0 9e-07 0 Robert Ashford and Alkis Vazacopoulus 2019-12-18 Found using ODH|CPlex
1 2094267.6 0 5e-07 0 Andrea Tramontani 2019-06-24 found with CPLEX 12.9.0 using 12 threads at the root node after 1 hour

Similar instances in collection

The following instances are most similar to neos-3754224-navua 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 Status Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Objective Tags
eva1aprime5x5opt open 1712 400 0 1312 11929 57162 Yoshihiro Kanno evaprime -17.94807560443689* aggregations variable_bound set_packing mixed_binary
eva1aprime6x6opt open 3514 836 0 2678 34872 161558 Yoshihiro Kanno evaprime -18.100995280293* aggregations variable_bound set_packing mixed_binary
neos-619167 easy 3452 400 0 3052 6800 20020 NEOS Server Submission neos-pseudoapplication-83 1.664893618589958 decomposition numerics precedence variable_bound mixed_binary
neos-5018451-chiese easy 265713 1222 244 264247 170175 1249955 Jeff Linderoth neos-pseudoapplication-69 -147988824.81 numerics aggregations variable_bound mixed_binary general_linear
neos-4984115-canche easy 268859 0 65 268794 180214 1351945 Jeff Linderoth neos-pseudoapplication-69 -9946659.921 numerics aggregations variable_bound mixed_binary general_linear

Reference

No bibliographic information available

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