Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:13:58 2012 Optimize a model with 459 rows, 439 columns and 1584 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 459 rows, 419 columns, 1564 nonzeros Variable types: 0 continuous, 419 integer (418 binary) Found heuristic solution: objective 85.0000000 Root relaxation: objective 0.000000e+00, 284 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 0 182 85.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s 0 0 0.31214 0 184 55.00000 0.31214 99.4% - 0s H 0 0 51.0000000 0.31214 99.4% - 0s 0 0 1.01548 0 187 51.00000 1.01548 98.0% - 0s H 0 0 49.0000000 1.01548 97.9% - 0s 0 0 1.01548 0 189 49.00000 1.01548 97.9% - 0s 0 0 1.01548 0 188 49.00000 1.01548 97.9% - 0s H 0 0 48.0000000 1.01548 97.9% - 0s H 0 0 46.0000000 1.01548 97.8% - 0s H 0 0 40.0000000 1.01548 97.5% - 0s H 0 0 38.0000000 1.01548 97.3% - 0s 0 2 1.01555 0 188 38.00000 1.01555 97.3% - 0s H 27 27 37.0000000 1.05847 97.1% 33.6 0s * 28 27 16 10.0000000 1.05847 89.4% 37.6 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 1 Explored 157 nodes (5943 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%