Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:52 2013 Optimize a model with 63 rows, 49 columns and 196 nonzeros Presolve removed 21 rows and 21 columns Presolve time: 0.00s Presolved: 42 rows, 28 columns, 154 nonzeros Variable types: 7 continuous, 21 integer (21 binary) Found heuristic solution: objective 665.0000000 Found heuristic solution: objective 576.0000000 Found heuristic solution: objective 379.0000000 Root relaxation: objective 3.142222e+02, 17 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 314.22222 0 7 379.00000 314.22222 17.1% - 0s 0 0 324.01319 0 11 379.00000 324.01319 14.5% - 0s H 0 0 356.0000000 324.01319 8.99% - 0s H 0 0 346.0000000 324.01319 6.35% - 0s H 0 0 328.0000000 324.01319 1.22% - 0s 0 0 326.05733 0 13 328.00000 326.05733 0.59% - 0s 0 0 327.00000 0 2 328.00000 327.00000 0.30% - 0s Cutting planes: Gomory: 1 Cover: 1 Clique: 2 MIR: 2 Explored 0 nodes (55 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.280000000000e+02, best bound 3.280000000000e+02, gap 0.0%