Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:43 2012 Optimize a model with 135 rows, 83 columns and 418 nonzeros Presolve time: 0.00s Presolved: 135 rows, 83 columns, 418 nonzeros Variable types: 0 continuous, 83 integer (83 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 25 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 16 35.00000 0.00000 100% - 0s 0 0 1.25000 0 18 35.00000 1.25000 96.4% - 0s H 0 0 30.0000000 1.25000 95.8% - 0s 0 0 1.37500 0 18 30.00000 1.37500 95.4% - 0s 0 0 1.37500 0 18 30.00000 1.37500 95.4% - 0s 0 0 1.37500 0 18 30.00000 1.37500 95.4% - 0s 0 2 1.44737 0 18 30.00000 1.44737 95.2% - 0s * 38 25 12 29.0000000 7.50000 74.1% 14.9 0s * 56 31 10 27.0000000 10.30000 61.9% 14.1 0s * 79 35 10 26.0000000 10.37500 60.1% 13.1 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 238 nodes (2698 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%