enlight_hard

benchmark benchmark_suitable equation_knapsack general_linear

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
A. Zymolka	200	100	2.8e-02	easy	enlight	37	enlight_hard.mps.gz

Model to solve instance of a combinatorial game ``EnLight’’ Imported from the MIPLIB2010 submissions.

Location of instance in collection

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
	Original	Presolved
Variables	200	200
Constraints	100	100
Binaries	100	102
Integers	100	98
Continuous	0	0
Implicit Integers	0	0
Fixed Variables	0	0
Nonzero Density	0.028	0.028
Nonzeroes	560	560

Constraint Classification Properties
	Original	Presolved
Total	100	100
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	0
Cardinality	0	0
Invariant Knapsack	0	0
Equation Knapsack	0	2
Bin Packing	0	0
Knapsack	0	0
Integer Knapsack	0	0
Mixed Binary	0	0
General Linear	100	98
Indicator	0	0

Structure

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

Nonzero entries of original problem

Nonzero entries after trivial presolving

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

	value	min	median	mean	max
Components	0.30103
Constraint %		36	36	36	36
Variable %		50	50	50	50
Score	0.18000

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	37	37	0	0	0	-	2018-10-11	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to enlight_hard 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
enlight11	easy	242	121	121	0	121	682	A. Zymolka	enlight	Infeasible	infeasible equation_knapsack general_linear
enlight9	easy	162	81	81	0	81	450	A. Zymolka	enlight	Infeasible	infeasible equation_knapsack general_linear
enlight8	easy	128	64	64	0	64	352	A. Zymolka	enlight	27	equation_knapsack general_linear
enlight4	easy	32	16	16	0	16	80	A. Zymolka	enlight	Infeasible	infeasible equation_knapsack general_linear
timtab1	easy	397	77	94	226	171	829	C. Liebchen, R. Möhring	timtab	764771.99999978	benchmark benchmark_suitable aggregations mixed_binary general_linear

Reference

No bibliographic information available