Name | rail03 |

Download | rail03.mps.gz |

Solution | rail03.sol.gz |

Set Membership | Challenge Reoptimize |

Problem Status | Hard |

Problem Feasibility | Feasible |

Originator/Contributor | T. Schlechte |

Rows | 253905 |

Cols | 758775 |

Num. non-zeros in A | 1728451 |

Num. non-zeros in c | 78545 |

Rows/Cols | 0.334624888801 |

Integers | |

Binaries | 758775 |

Continuous | |

min nonzero |Aij| | 1 |

max |Aij| | 62 |

min nonzero |cj| | 6.666667e-07 |

max |cj| | 9.994556 |

Integer Objective | -867.093965444446 |

LP Objective | -920.274 |

Aggregation | 112561 |

Variable Bound | 44 |

Set partitioning | 86933 |

Set packing | 4083 |

Set covering | |

Cardinality | 50254 |

Equality Knapsacks | |

Bin packing | |

Invariant Knapsack | |

Knapsacks | 30 |

Integer Knapsack | |

Mixed 0/1 | |

General Cons. | |

References | BorndoerferSchlechte2007 |

Track allocation problem modeled as arc coupling problem The problem was solved by CPLEX 12.4. It took approximately 170 hours.

Last Update February 28, 2017 by Gerald Gamrath

© 2017 by Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB)

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