Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:01:09 2012 Optimize a model with 431 rows, 412 columns and 1487 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 431 rows, 394 columns, 1469 nonzeros Variable types: 0 continuous, 394 integer (393 binary) Found heuristic solution: objective 94.0000000 Root relaxation: objective 0.000000e+00, 255 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 0 176 94.00000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s 0 0 0.44318 0 177 58.00000 0.44318 99.2% - 0s H 0 0 56.0000000 0.44318 99.2% - 0s 0 0 1.00000 0 179 56.00000 1.00000 98.2% - 0s H 0 0 52.0000000 1.00000 98.1% - 0s 0 0 1.00000 0 176 52.00000 1.00000 98.1% - 0s H 0 0 47.0000000 1.00000 97.9% - 0s H 0 0 41.0000000 1.00000 97.6% - 0s H 0 0 38.0000000 1.00000 97.4% - 0s 0 2 1.00000 0 176 38.00000 1.00000 97.4% - 0s H 27 22 11.0000000 2.29577 79.1% 39.0 0s Cutting planes: Gomory: 1 Explored 148 nodes (5854 simplex iterations) in 0.29 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%