Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:26 2012 Optimize a model with 443 rows, 423 columns and 1528 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 443 rows, 403 columns, 1508 nonzeros Variable types: 0 continuous, 403 integer (402 binary) Found heuristic solution: objective 91.0000000 Root relaxation: objective 0.000000e+00, 246 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 0 177 91.00000 0.00000 100% - 0s H 0 0 78.0000000 0.00000 100% - 0s H 0 0 77.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s 0 0 0.36145 0 179 63.00000 0.36145 99.4% - 0s H 0 0 60.0000000 0.36145 99.4% - 0s H 0 0 42.0000000 0.36145 99.1% - 0s 0 0 0.90159 0 186 42.00000 0.90159 97.9% - 0s H 0 0 40.0000000 0.90159 97.7% - 0s 0 0 0.90175 0 182 40.00000 0.90175 97.7% - 0s H 0 0 39.0000000 0.90175 97.7% - 0s 0 0 0.90175 0 182 39.00000 0.90175 97.7% - 0s 0 2 0.91262 0 182 39.00000 0.91262 97.7% - 0s H 27 27 15.0000000 1.00000 93.3% 43.1 0s H 53 27 12.0000000 3.12329 74.0% 35.4 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 209 nodes (7945 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%