Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:02:24 2012 Optimize a model with 333 rows, 192 columns and 1022 nonzeros Presolve time: 0.00s Presolved: 333 rows, 192 columns, 1022 nonzeros Variable types: 0 continuous, 192 integer (192 binary) Found heuristic solution: objective 89.0000000 Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 48 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 26 82.00000 0.00000 100% - 0s H 0 0 77.0000000 0.00000 100% - 0s 0 0 0.91667 0 28 77.00000 0.91667 98.8% - 0s 0 0 0.95833 0 28 77.00000 0.95833 98.8% - 0s H 0 0 75.0000000 0.95833 98.7% - 0s 0 0 1.00000 0 28 75.00000 1.00000 98.7% - 0s 0 0 1.04167 0 28 75.00000 1.04167 98.6% - 0s 0 0 1.04167 0 28 75.00000 1.04167 98.6% - 0s 0 0 1.04167 0 28 75.00000 1.04167 98.6% - 0s 0 0 1.04167 0 28 75.00000 1.04167 98.6% - 0s H 0 0 71.0000000 1.04167 98.5% - 0s 0 2 1.32627 0 28 71.00000 1.32627 98.1% - 0s * 134 92 18 70.0000000 13.27083 81.0% 33.6 0s * 135 91 18 69.0000000 13.27083 80.8% 33.3 0s * 271 146 18 68.0000000 19.08333 71.9% 29.9 0s * 775 297 24 67.0000000 31.31579 53.3% 29.7 0s * 799 276 24 66.0000000 31.31579 52.6% 29.2 0s * 1171 216 24 65.0000000 34.50000 46.9% 28.3 1s Cutting planes: Gomory: 1 Zero half: 4 Explored 5345 nodes (131926 simplex iterations) in 4.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.500000000000e+01, best bound 6.500000000000e+01, gap 0.0%