Gurobi 5.0.1 (linux64) logging started Fri Dec 21 21:27:20 2012 Optimize a model with 10402 rows, 10201 columns and 61294 nonzeros Presolve removed 5313 rows and 5602 columns Presolve time: 0.13s Presolved: 5089 rows, 4599 columns, 25016 nonzeros Variable types: 98 continuous, 4501 integer (4501 binary) Root relaxation: objective 6.688632e+02, 718 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 668.86320 0 114 - 668.86320 - - 0s 0 0 686.80145 0 104 - 686.80145 - - 0s 0 0 687.92314 0 101 - 687.92314 - - 0s 0 0 689.48310 0 106 - 689.48310 - - 0s 0 0 689.54977 0 116 - 689.54977 - - 0s 0 0 693.51630 0 101 - 693.51630 - - 0s 0 0 694.07920 0 121 - 694.07920 - - 0s 0 0 694.47877 0 120 - 694.47877 - - 0s 0 0 694.84186 0 117 - 694.84186 - - 0s 0 0 694.84186 0 123 - 694.84186 - - 0s 0 0 694.84186 0 121 - 694.84186 - - 0s 0 0 698.27000 0 94 - 698.27000 - - 1s 0 0 698.27000 0 94 - 698.27000 - - 1s 0 2 698.31166 0 94 - 698.31166 - - 1s 603 471 732.31104 44 111 - 705.14500 - 11.7 5s 606 473 718.45590 27 70 - 710.19379 - 11.6 10s 609 475 718.07623 44 61 - 712.33350 - 11.5 15s * 711 465 32 720.0000000 713.04689 0.97% 13.9 19s H 715 425 718.0000000 713.04689 0.69% 13.8 19s * 740 395 27 717.0000000 713.33186 0.51% 14.0 19s H 742 352 715.0000000 713.33186 0.23% 14.0 19s Cutting planes: Learned: 2 Gomory: 18 Cover: 3 Clique: 3 MIR: 16 GUB cover: 9 Zero half: 8 Mod-K: 1 Explored 753 nodes (12008 simplex iterations) in 19.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.150000000000e+02, best bound 7.150000000000e+02, gap 0.0%