Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:34 2012 Optimize a model with 1530 rows, 342 columns and 4860 nonzeros Presolve removed 900 rows and 0 columns Presolve time: 0.02s Presolved: 630 rows, 342 columns, 3348 nonzeros Variable types: 0 continuous, 342 integer (342 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 5.000000e+00, 930 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5.00000 0 46 14.00000 5.00000 64.3% - 0s H 0 0 6.0000000 5.00000 16.7% - 0s 0 0 5.00000 0 70 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 25 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 27 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 36 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 32 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 28 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 43 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 16 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 50 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 34 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 28 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 16 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 35 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 16 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 34 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 57 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 16 6.00000 5.00000 16.7% - 1s 0 2 5.00000 0 16 6.00000 5.00000 16.7% - 1s Cutting planes: Gomory: 8 Explored 14 nodes (24139 simplex iterations) in 1.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%