Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:27 2012 Optimize a model with 349 rows, 355 columns and 1225 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 349 rows, 329 columns, 1199 nonzeros Variable types: 0 continuous, 329 integer (328 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 203 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 0 137 53.00000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s 0 0 0.25148 0 139 35.00000 0.25148 99.3% - 0s H 0 0 33.0000000 0.25148 99.2% - 0s H 0 0 29.0000000 0.25148 99.1% - 0s 0 0 0.74709 0 140 29.00000 0.74709 97.4% - 0s H 0 0 21.0000000 0.74709 96.4% - 0s 0 0 0.74957 0 144 21.00000 0.74957 96.4% - 0s 0 0 0.74957 0 143 21.00000 0.74957 96.4% - 0s H 0 0 17.0000000 0.74957 95.6% - 0s 0 2 0.75040 0 143 17.00000 0.75040 95.6% - 0s * 59 31 44 9.0000000 1.00000 88.9% 12.3 0s * 87 32 12 8.0000000 1.86450 76.7% 15.1 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 207 nodes (4944 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%