Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:18 2013 Optimize a model with 16480 rows, 16080 columns and 64080 nonzeros Presolve removed 40 rows and 0 columns Presolve time: 0.07s Presolved: 16440 rows, 16080 columns, 64040 nonzeros Variable types: 16040 continuous, 40 integer (40 binary) Root relaxation: objective 4.062722e+04, 2815 iterations, 0.52 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40627.2215 0 33 - 40627.2215 - - 0s H 0 0 47887.000000 40627.2215 15.2% - 0s * 0 0 0 45669.000000 45669.0000 0.0% - 1s Cutting planes: Gomory: 20 Implied bound: 32 Explored 0 nodes (3554 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.566900000000e+04, best bound 4.566900000000e+04, gap 0.0%