Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:00 2012 Optimize a model with 197 rows, 119 columns and 609 nonzeros Presolve time: 0.00s Presolved: 197 rows, 119 columns, 609 nonzeros Variable types: 0 continuous, 119 integer (119 binary) Found heuristic solution: objective 56.0000000 Found heuristic solution: objective 49.0000000 Root relaxation: objective 0.000000e+00, 42 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 21 49.00000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 1.20635 0 23 43.00000 1.20635 97.2% - 0s 0 0 1.31746 0 23 43.00000 1.31746 96.9% - 0s 0 0 1.33894 0 31 43.00000 1.33894 96.9% - 0s 0 0 1.38095 0 32 43.00000 1.38095 96.8% - 0s 0 0 1.38095 0 32 43.00000 1.38095 96.8% - 0s 0 0 1.38095 0 32 43.00000 1.38095 96.8% - 0s H 0 0 42.0000000 1.38095 96.7% - 0s 0 2 1.47066 0 32 42.00000 1.47066 96.5% - 0s * 23 19 12 41.0000000 6.76871 83.5% 24.8 0s * 282 83 8 38.0000000 21.00000 44.7% 16.9 0s H 359 80 37.0000000 22.66667 38.7% 16.9 0s * 441 64 10 36.0000000 26.00000 27.8% 17.7 0s * 455 53 8 34.0000000 26.75000 21.3% 17.7 0s Cutting planes: Gomory: 1 Mod-K: 7 Explored 551 nodes (9389 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%