Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:38 2012 Optimize a model with 307 rows, 210 columns and 975 nonzeros Presolve time: 0.00s Presolved: 307 rows, 210 columns, 975 nonzeros Variable types: 0 continuous, 210 integer (210 binary) Found heuristic solution: objective 72.0000000 Found heuristic solution: objective 68.0000000 Root relaxation: objective 0.000000e+00, 92 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 57 68.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 56.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s 0 0 0.84357 0 59 53.00000 0.84357 98.4% - 0s 0 0 0.87135 0 59 53.00000 0.87135 98.4% - 0s 0 0 0.98410 0 60 53.00000 0.98410 98.1% - 0s 0 0 1.02142 0 60 53.00000 1.02142 98.1% - 0s 0 0 1.02908 0 63 53.00000 1.02908 98.1% - 0s 0 2 1.05108 0 63 53.00000 1.05108 98.0% - 0s * 35 34 21 45.0000000 5.78056 87.2% 29.4 0s * 65 50 18 41.0000000 5.87175 85.7% 26.5 0s * 101 70 21 39.0000000 9.86111 74.7% 23.8 0s * 166 105 22 38.0000000 14.57500 61.6% 21.9 0s H 632 214 37.0000000 21.14286 42.9% 20.0 0s * 864 210 22 36.0000000 21.14286 41.3% 21.8 0s * 944 189 26 34.0000000 21.14286 37.8% 21.9 0s Explored 2070 nodes (43708 simplex iterations) in 1.49 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%