Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:23 2012 Optimize a model with 393 rows, 379 columns and 1359 nonzeros Presolve removed 0 rows and 16 columns Presolve time: 0.00s Presolved: 393 rows, 363 columns, 1343 nonzeros Variable types: 0 continuous, 363 integer (362 binary) Found heuristic solution: objective 68.0000000 Root relaxation: objective 0.000000e+00, 224 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 0 153 68.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 52.0000000 0.00000 100% - 0s 0 0 0.40523 0 154 52.00000 0.40523 99.2% - 0s H 0 0 44.0000000 0.40523 99.1% - 0s H 0 0 43.0000000 0.40523 99.1% - 0s 0 0 1.00000 0 157 43.00000 1.00000 97.7% - 0s H 0 0 40.0000000 1.00000 97.5% - 0s 0 0 1.00000 0 159 40.00000 1.00000 97.5% - 0s 0 0 1.00000 0 157 40.00000 1.00000 97.5% - 0s H 0 0 37.0000000 1.00000 97.3% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s 0 2 1.00000 0 156 30.00000 1.00000 96.7% - 0s H 27 27 13.0000000 1.00000 92.3% 46.4 0s * 40 28 25 12.0000000 1.00000 91.7% 37.4 0s * 456 74 10 11.0000000 6.21277 43.5% 31.3 0s Cutting planes: Gomory: 3 Zero half: 9 Mod-K: 1 Explored 621 nodes (19267 simplex iterations) in 0.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%