Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:04:17 2012 Optimize a model with 367 rows, 246 columns and 1161 nonzeros Presolve time: 0.00s Presolved: 367 rows, 246 columns, 1161 nonzeros Variable types: 0 continuous, 246 integer (246 binary) Found heuristic solution: objective 94.0000000 Found heuristic solution: objective 90.0000000 Root relaxation: objective 0.000000e+00, 85 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 63 90.00000 0.00000 100% - 0s H 0 0 89.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s 0 0 0.59551 0 66 70.00000 0.59551 99.1% - 0s 0 0 0.70272 0 66 70.00000 0.70272 99.0% - 0s 0 0 0.74439 0 65 70.00000 0.74439 98.9% - 0s 0 0 0.74439 0 65 70.00000 0.74439 98.9% - 0s 0 0 0.74439 0 65 70.00000 0.74439 98.9% - 0s 0 2 0.75640 0 65 70.00000 0.75640 98.9% - 0s H 40 40 62.0000000 4.55172 92.7% 31.0 0s * 42 41 23 59.0000000 4.55172 92.3% 30.4 0s * 80 62 22 54.0000000 4.61576 91.5% 27.9 0s * 116 78 21 46.0000000 7.98621 82.6% 27.9 0s H 246 158 44.0000000 11.17379 74.6% 29.4 0s 5575 401 37.50000 22 123 44.00000 34.54717 21.5% 22.9 5s Explored 8574 nodes (181527 simplex iterations) in 6.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%