Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:30:20 2012 Optimize a model with 325 rows, 238 columns and 1048 nonzeros Presolve time: 0.00s Presolved: 325 rows, 238 columns, 1048 nonzeros Variable types: 0 continuous, 238 integer (238 binary) Found heuristic solution: objective 84.0000000 Found heuristic solution: objective 80.0000000 Root relaxation: objective 0.000000e+00, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 75 80.00000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.57042 0 76 62.00000 0.57042 99.1% - 0s 0 0 1.01172 0 78 62.00000 1.01172 98.4% - 0s 0 0 1.03708 0 78 62.00000 1.03708 98.3% - 0s 0 0 1.05399 0 79 62.00000 1.05399 98.3% - 0s H 0 0 52.0000000 1.05399 98.0% - 0s 0 0 1.11072 0 79 52.00000 1.11072 97.9% - 0s H 0 0 48.0000000 1.11072 97.7% - 0s 0 0 1.13754 0 83 48.00000 1.13754 97.6% - 0s 0 0 1.13827 0 84 48.00000 1.13827 97.6% - 0s H 0 0 46.0000000 1.13827 97.5% - 0s 0 2 1.15481 0 84 46.00000 1.15481 97.5% - 0s * 35 35 21 33.0000000 3.39683 89.7% 31.4 0s * 37 30 23 32.0000000 3.39683 89.4% 30.2 0s * 63 45 16 31.0000000 3.43490 88.9% 28.1 0s * 117 72 17 30.0000000 4.93802 83.5% 29.1 0s * 181 99 14 27.0000000 8.97115 66.8% 29.3 0s * 337 109 10 26.0000000 11.90820 54.2% 27.3 0s Cutting planes: Gomory: 2 Zero half: 1 Mod-K: 3 Explored 1384 nodes (29570 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%