Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:25 2013 Optimize a model with 10592 rows, 10272 columns and 40992 nonzeros Presolve time: 0.04s Presolved: 10592 rows, 10272 columns, 40992 nonzeros Variable types: 10240 continuous, 32 integer (32 binary) Root relaxation: objective 3.119797e+04, 1315 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 31197.9698 0 2 - 31197.9698 - - 0s H 0 0 31247.000000 31197.9698 0.16% - 0s 0 0 31202.0713 0 3 31247.0000 31202.0713 0.14% - 0s 0 0 31202.0713 0 3 31247.0000 31202.0713 0.14% - 0s 0 0 31219.1600 0 2 31247.0000 31219.1600 0.09% - 0s * 0 0 0 31223.000000 31223.0000 0.0% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (1395 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.122300000000e+04, best bound 3.122300000000e+04, gap 0.0%