Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|

MIPLIB submission pool | 45 | 332 | 7.22222e-02 | easy | stein | Infeasible | stein45inf.mps.gz |

Imported from the MIPLIB2010 submissions.

Detailed explanation of the following tables can be found here.

Original | Presolved | |
---|---|---|

Variables | 45 | 45 |

Constraints | 332 | 332 |

Binaries | 45 | 45 |

Integers | 0 | 0 |

Continuous | 0 | 0 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0722222 | 0.0722222 |

Nonzeroes | 1079 | 1079 |

Original | Presolved | |
---|---|---|

Total | 332 | 332 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 1 | 1 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 329 | 329 |

Cardinality | 0 | 0 |

Invariant Knapsack | 1 | 1 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 1 | 1 |

General Linear | 0 | 0 |

Indicator | 0 | 0 |

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

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

value | min | median | mean | max | |
---|---|---|---|---|---|

Components | 0.301030 | ||||

Constraint % | 0.301205 | 0.301205 | 0.301205 | 0.301205 | |

Variable % | 4.444440 | 4.444440 | 4.444440 | 4.444440 | |

Score | 0.002878 |

No solution available for stein45inf .

The following instances are most similar to stein45inf 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

stein15inf | easy | 15 | 15 | 0 | 0 | 37 | 135 | MIPLIB submission pool | stein | Infeasible | infeasible binary set_covering invariant_knapsack mixed_binary |

stein9inf | easy | 9 | 9 | 0 | 0 | 14 | 54 | MIPLIB submission pool | stein | Infeasible | infeasible binary set_covering invariant_knapsack mixed_binary |

f2000 | open | 4000 | 4000 | 0 | 0 | 10500 | 29500 | M. Winkler | -- | 1811.0* | binary variable_bound set_covering |

seymour | easy | 1372 | 1372 | 0 | 0 | 4944 | 33549 | W. Cook, P. Seymour | -- | 423 | benchmark binary benchmark_suitable variable_bound set_covering |

ramos3 | open | 2187 | 2187 | 0 | 0 | 2187 | 32805 | F. Ramos | -- | 192.0* | binary set_covering |

`No bibliographic information available`

Last Update Nov 16, 2020 by Philipp Wellner

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