Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:30 2013 Optimize a model with 6048 rows, 5808 columns and 23088 nonzeros Presolve removed 24 rows and 0 columns Presolve time: 0.03s Presolved: 6024 rows, 5808 columns, 23064 nonzeros Variable types: 5784 continuous, 24 integer (24 binary) Root relaxation: objective 3.215990e+04, 1446 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 32159.9049 0 22 - 32159.9049 - - 0s H 0 0 35356.000000 32159.9049 9.04% - 0s 0 0 34339.2941 0 1 35356.0000 34339.2941 2.88% - 0s H 0 0 34420.647059 34339.2941 0.24% - 0s H 0 0 34362.000000 34339.2941 0.07% - 0s Cutting planes: Implied bound: 21 Explored 0 nodes (1841 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.436200000000e+04, best bound 3.436200000000e+04, gap 0.0%