Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:17:59 2012 Optimize a model with 365 rows, 270 columns and 1180 nonzeros Presolve time: 0.00s Presolved: 365 rows, 270 columns, 1180 nonzeros Variable types: 0 continuous, 270 integer (270 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 0.000000e+00, 115 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 87 70.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s 0 0 0.62508 0 88 63.00000 0.62508 99.0% - 0s H 0 0 60.0000000 0.62508 99.0% - 0s 0 0 1.19226 0 90 60.00000 1.19226 98.0% - 0s 0 0 1.52516 0 90 60.00000 1.52516 97.5% - 0s 0 0 1.53222 0 91 60.00000 1.53222 97.4% - 0s 0 0 1.53222 0 91 60.00000 1.53222 97.4% - 0s H 0 0 55.0000000 1.53222 97.2% - 0s H 0 0 53.0000000 1.53222 97.1% - 0s 0 2 1.54292 0 91 53.00000 1.54292 97.1% - 0s * 33 33 20 44.0000000 3.51612 92.0% 40.9 0s * 40 30 20 42.0000000 3.51612 91.6% 35.6 0s * 78 60 22 40.0000000 3.55922 91.1% 33.5 0s * 247 189 22 39.0000000 6.64771 83.0% 33.2 0s * 308 232 23 38.0000000 6.66573 82.5% 32.3 0s H 477 282 36.0000000 9.59664 73.3% 29.8 0s * 799 378 33 35.0000000 11.53571 67.0% 29.6 1s * 802 349 31 34.0000000 11.53571 66.1% 29.5 1s 5513 56 cutoff 25 34.00000 30.20000 11.2% 23.5 5s Explored 5622 nodes (131780 simplex iterations) in 5.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%