Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:11:05 2013 Optimize a model with 25600 rows, 25100 columns and 100100 nonzeros Presolve removed 50 rows and 0 columns Presolve time: 0.11s Presolved: 25550 rows, 25100 columns, 100050 nonzeros Variable types: 25050 continuous, 50 integer (50 binary) Root relaxation: objective 4.673306e+04, 3788 iterations, 1.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46733.0620 0 39 - 46733.0620 - - 1s H 0 0 60101.000000 46733.0620 22.2% - 2s 0 0 53338.7108 0 7 60101.0000 53338.7108 11.3% - 3s H 0 0 56976.343903 53338.7108 6.38% - 3s H 0 0 54985.000000 53338.7108 2.99% - 3s 0 0 54014.6035 0 2 54985.0000 54014.6035 1.76% - 3s H 0 0 54760.000000 54014.6035 1.36% - 3s H 0 0 54081.000000 54014.6035 0.12% - 3s 0 0 54052.8723 0 1 54081.0000 54052.8723 0.05% - 4s 0 0 54052.8723 0 34 54081.0000 54052.8723 0.05% - 5s 0 0 54052.8723 0 2 54081.0000 54052.8723 0.05% - 7s 0 0 54052.8723 0 1 54081.0000 54052.8723 0.05% - 7s 0 0 cutoff 0 54081.0000 54081.0000 0.0% - 7s Cutting planes: Gomory: 3 Implied bound: 34 Explored 0 nodes (11112 simplex iterations) in 7.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.408100000000e+04, best bound 5.408100000000e+04, gap 0.0%