Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:56 2012 Optimize a model with 115 rows, 104 columns and 389 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 115 rows, 102 columns, 387 nonzeros Variable types: 0 continuous, 102 integer (101 binary) Found heuristic solution: objective 23.0000000 Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 68 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 41 22.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.29709 0 43 16.00000 0.29709 98.1% - 0s H 0 0 13.0000000 0.29709 97.7% - 0s 0 0 0.99621 0 45 13.00000 0.99621 92.3% - 0s H 0 0 11.0000000 0.99621 90.9% - 0s 0 0 1.00999 0 48 11.00000 1.00999 90.8% - 0s 0 0 1.00999 0 46 11.00000 1.00999 90.8% - 0s 0 2 1.05187 0 46 11.00000 1.05187 90.4% - 0s * 12 11 9 7.0000000 2.10752 69.9% 14.9 0s * 51 7 7 6.0000000 3.72142 38.0% 11.6 0s Cutting planes: Gomory: 4 Zero half: 5 Explored 62 nodes (1020 simplex iterations) in 0.06 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%