Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:32 2012 Optimize a model with 347 rows, 230 columns and 1095 nonzeros Presolve time: 0.00s Presolved: 347 rows, 230 columns, 1095 nonzeros Variable types: 0 continuous, 230 integer (230 binary) Found heuristic solution: objective 84.0000000 Root relaxation: objective 0.000000e+00, 87 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 57 84.00000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.70175 0 59 68.00000 0.70175 99.0% - 0s 0 0 0.82996 0 59 68.00000 0.82996 98.8% - 0s 0 0 0.99806 0 60 68.00000 0.99806 98.5% - 0s H 0 0 61.0000000 0.99806 98.4% - 0s 0 0 1.01923 0 58 61.00000 1.01923 98.3% - 0s 0 0 1.01927 0 70 61.00000 1.01927 98.3% - 0s 0 2 1.11997 0 70 61.00000 1.11997 98.2% - 0s H 27 27 58.0000000 4.46154 92.3% 35.2 0s * 41 40 27 57.0000000 4.46154 92.2% 27.7 0s * 80 54 25 45.0000000 4.53846 89.9% 23.2 0s * 586 293 20 44.0000000 16.29808 63.0% 21.7 0s H 891 378 42.0000000 18.24059 56.6% 23.0 1s * 893 358 29 41.0000000 18.24059 55.5% 23.0 1s * 1549 200 29 40.0000000 25.00000 37.5% 22.0 1s * 1581 176 23 39.0000000 25.15000 35.5% 22.1 1s * 1980 135 23 38.0000000 27.75000 27.0% 21.7 1s Cutting planes: Gomory: 1 Mod-K: 4 Explored 2445 nodes (52457 simplex iterations) in 2.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%