Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:58 2012 Optimize a model with 337 rows, 342 columns and 1182 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 337 rows, 325 columns, 1165 nonzeros Variable types: 0 continuous, 325 integer (324 binary) Found heuristic solution: objective 75.0000000 Found heuristic solution: objective 71.0000000 Root relaxation: objective 0.000000e+00, 208 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 0 138 71.00000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s 0 0 0.29852 0 140 37.00000 0.29852 99.2% - 0s H 0 0 26.0000000 0.29852 98.9% - 0s H 0 0 23.0000000 0.29852 98.7% - 0s 0 0 0.73158 0 145 23.00000 0.73158 96.8% - 0s H 0 0 20.0000000 0.73158 96.3% - 0s 0 0 0.73202 0 148 20.00000 0.73202 96.3% - 0s 0 0 0.73202 0 147 20.00000 0.73202 96.3% - 0s H 0 0 19.0000000 0.73202 96.1% - 0s H 0 0 17.0000000 0.73202 95.7% - 0s 0 2 0.73793 0 147 17.00000 0.73793 95.7% - 0s H 27 27 9.0000000 1.65183 81.6% 26.0 0s * 37 19 23 7.0000000 1.65183 76.4% 27.9 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 92 nodes (3419 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%