Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:50:15 2012 Optimize a model with 357 rows, 240 columns and 1130 nonzeros Presolve time: 0.00s Presolved: 357 rows, 240 columns, 1130 nonzeros Variable types: 0 continuous, 240 integer (240 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 109 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 62 82.00000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s 0 0 0.59259 0 64 72.00000 0.59259 99.2% - 0s 0 0 0.90741 0 64 72.00000 0.90741 98.7% - 0s 0 0 0.93333 0 65 72.00000 0.93333 98.7% - 0s 0 0 1.01852 0 64 72.00000 1.01852 98.6% - 0s 0 0 1.01852 0 64 72.00000 1.01852 98.6% - 0s 0 0 1.03704 0 65 72.00000 1.03704 98.6% - 0s 0 0 1.03704 0 64 72.00000 1.03704 98.6% - 0s 0 0 1.05556 0 64 72.00000 1.05556 98.5% - 0s 0 0 1.05556 0 65 72.00000 1.05556 98.5% - 0s 0 0 1.05556 0 64 72.00000 1.05556 98.5% - 0s H 0 0 71.0000000 1.05556 98.5% - 0s 0 2 1.05556 0 64 71.00000 1.05556 98.5% - 0s * 32 32 19 45.0000000 5.14530 88.6% 31.6 0s * 361 221 15 42.0000000 15.44000 63.2% 23.2 0s * 3617 449 22 41.0000000 28.83333 29.7% 21.1 3s 5667 333 37.00000 19 120 41.00000 32.00000 22.0% 20.2 5s Cutting planes: Gomory: 1 Zero half: 5 Explored 7185 nodes (141858 simplex iterations) in 6.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%