Gurobi 5.0.1 (linux64) logging started Fri Dec 21 21:27:16 2012 Optimize a model with 10202 rows, 10201 columns and 45763 nonzeros Presolve removed 9329 rows and 5457 columns Presolve time: 0.09s Presolved: 873 rows, 4744 columns, 11816 nonzeros Variable types: 96 continuous, 4648 integer (4648 binary) Root relaxation: objective 6.506875e+02, 360 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 650.68754 0 94 - 650.68754 - - 0s 0 0 669.78178 0 105 - 669.78178 - - 0s 0 0 676.39909 0 109 - 676.39909 - - 0s 0 0 679.38953 0 108 - 679.38953 - - 0s 0 0 683.34091 0 103 - 683.34091 - - 0s 0 0 684.45600 0 113 - 684.45600 - - 0s 0 0 687.23498 0 111 - 687.23498 - - 0s 0 0 687.77561 0 110 - 687.77561 - - 0s 0 0 688.39683 0 100 - 688.39683 - - 0s 0 0 688.89683 0 113 - 688.89683 - - 0s 0 0 689.34683 0 112 - 689.34683 - - 0s 0 0 689.93016 0 106 - 689.93016 - - 0s 0 0 690.26349 0 117 - 690.26349 - - 0s 0 0 690.43016 0 114 - 690.43016 - - 0s 0 0 690.43016 0 115 - 690.43016 - - 0s 0 0 690.43016 0 108 - 690.43016 - - 0s 0 0 690.43016 0 114 - 690.43016 - - 0s 0 0 696.52551 0 97 - 696.52551 - - 0s 0 0 696.86429 0 92 - 696.86429 - - 0s 0 0 697.42095 0 104 - 697.42095 - - 0s 0 0 697.71335 0 127 - 697.71335 - - 0s 0 0 697.72406 0 107 - 697.72406 - - 0s 0 0 697.72406 0 107 - 697.72406 - - 0s 0 0 697.72406 0 102 - 697.72406 - - 0s 0 2 697.82406 0 96 - 697.82406 - - 1s * 220 92 27 716.0000000 700.82406 2.12% 12.4 1s H 278 111 715.0000000 702.32406 1.77% 12.2 1s H 359 132 714.0000000 702.90311 1.55% 11.7 1s Cutting planes: Learned: 6 Gomory: 16 Cover: 4 Implied bound: 7 Clique: 1 MIR: 13 GUB cover: 4 Zero half: 27 Explored 655 nodes (11670 simplex iterations) in 2.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.140000000000e+02, best bound 7.140000000000e+02, gap 0.0%