Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:54:52 2012 Optimize a model with 293 rows, 200 columns and 930 nonzeros Presolve time: 0.00s Presolved: 293 rows, 200 columns, 930 nonzeros Variable types: 0 continuous, 200 integer (200 binary) Found heuristic solution: objective 67.0000000 Root relaxation: objective 0.000000e+00, 85 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 54 67.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s 0 0 0.70000 0 56 55.00000 0.70000 98.7% - 0s 0 0 0.78261 0 57 55.00000 0.78261 98.6% - 0s 0 0 0.85417 0 57 55.00000 0.85417 98.4% - 0s 0 0 0.92308 0 58 55.00000 0.92308 98.3% - 0s 0 0 0.96053 0 61 55.00000 0.96053 98.3% - 0s H 0 0 54.0000000 0.96053 98.2% - 0s 0 0 0.97310 0 63 54.00000 0.97310 98.2% - 0s 0 0 1.02941 0 59 54.00000 1.02941 98.1% - 0s H 0 0 48.0000000 1.02941 97.9% - 0s 0 0 1.04545 0 59 48.00000 1.04545 97.8% - 0s 0 0 1.06250 0 59 48.00000 1.06250 97.8% - 0s 0 0 1.08140 0 58 48.00000 1.08140 97.7% - 0s 0 0 1.08725 0 58 48.00000 1.08725 97.7% - 0s H 0 0 45.0000000 1.08725 97.6% - 0s 0 2 1.11118 0 58 45.00000 1.11118 97.5% - 0s * 42 35 23 43.0000000 3.93443 90.9% 23.8 0s * 77 58 22 40.0000000 4.02254 89.9% 23.3 0s * 145 105 13 38.0000000 6.96974 81.7% 23.8 0s * 237 161 22 37.0000000 8.68333 76.5% 22.6 0s H 307 135 33.0000000 10.61498 67.8% 20.8 0s Explored 8175 nodes (151433 simplex iterations) in 4.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%