Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:30 2013 Optimize a model with 352 rows, 10272 columns and 20512 nonzeros Presolve time: 0.01s Presolved: 352 rows, 10272 columns, 20512 nonzeros Variable types: 10240 continuous, 32 integer (32 binary) Root relaxation: objective 3.381880e+04, 484 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33818.7967 0 4 - 33818.7967 - - 0s H 0 0 34436.000000 33818.7967 1.79% - 0s 0 0 34013.7528 0 1 34436.0000 34013.7528 1.23% - 0s H 0 0 34283.078652 34013.7528 0.79% - 0s H 0 0 34197.000000 34013.7528 0.54% - 0s H 0 0 34159.000000 34013.7528 0.43% - 0s 0 0 34013.7528 0 1 34159.0000 34013.7528 0.43% - 0s 0 0 34013.7528 0 1 34159.0000 34013.7528 0.43% - 0s 0 0 34013.7528 0 1 34159.0000 34013.7528 0.43% - 0s 0 2 34018.0000 0 1 34159.0000 34018.0000 0.41% - 0s * 3 2 3 34025.000000 34025.0000 0.0% 5.3 0s Cutting planes: Implied bound: 26 Explored 4 nodes (580 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.402500000000e+04, best bound 3.402500000000e+04, gap 0.0%