Gurobi 5.0.1 (linux64) logging started Mon Dec 10 02:41:17 2012 Optimize a model with 5970 rows, 5940 columns and 22667 nonzeros Presolve removed 305 rows and 41 columns Presolve time: 0.03s Presolved: 5665 rows, 5899 columns, 22049 nonzeros Variable types: 5548 continuous, 351 integer (351 binary) Root relaxation: objective 1.196609e+05, 561 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 119660.858 0 20 - 119660.858 - - 0s H 0 0 123167.00000 119660.858 2.85% - 0s H 0 0 123103.00000 119660.858 2.80% - 0s 0 0 119723.758 0 31 123103.000 119723.758 2.75% - 0s 0 0 119728.215 0 27 123103.000 119728.215 2.74% - 0s 0 0 119728.283 0 23 123103.000 119728.283 2.74% - 0s 0 0 119729.199 0 31 123103.000 119729.199 2.74% - 0s 0 0 119730.222 0 24 123103.000 119730.222 2.74% - 0s 0 2 119738.551 0 24 123103.000 119738.551 2.73% - 0s H 52 50 120997.00000 119755.816 1.03% 4.0 0s H 54 48 120690.00000 119755.816 0.77% 4.1 0s H 108 85 120558.00000 119757.587 0.66% 5.5 0s H 114 85 120540.22857 119757.587 0.65% 5.4 0s * 115 86 59 120532.00000 119757.587 0.64% 5.4 0s H 121 74 120144.00000 119767.809 0.31% 5.4 0s * 140 84 27 120113.00000 119767.809 0.29% 5.0 0s H 433 222 120102.00000 119842.989 0.22% 6.1 0s * 451 238 36 120099.00000 119842.989 0.21% 5.9 0s H 600 242 120059.00000 119871.726 0.16% 5.8 1s Cutting planes: Flow cover: 11 Explored 2402 nodes (11461 simplex iterations) in 3.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200590000000e+05, best bound 1.200473509159e+05, gap 0.0097%