Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:50 2013 Optimize a model with 330 rows, 9030 columns and 18030 nonzeros Presolve time: 0.01s Presolved: 330 rows, 9030 columns, 18030 nonzeros Variable types: 9000 continuous, 30 integer (30 binary) Root relaxation: objective 3.258033e+04, 420 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 32580.3341 0 3 - 32580.3341 - - 0s H 0 0 32849.000000 32580.3341 0.82% - 0s 0 0 32712.2000 0 1 32849.0000 32712.2000 0.42% - 0s H 0 0 32722.000000 32712.2000 0.03% - 0s 0 0 32717.9583 0 1 32722.0000 32717.9583 0.01% - 0s 0 0 32717.9583 0 3 32722.0000 32717.9583 0.01% - 0s 0 0 32717.9583 0 1 32722.0000 32717.9583 0.01% - 0s 0 0 32717.9583 0 1 32722.0000 32717.9583 0.01% - 0s 0 0 32718.1667 0 1 32722.0000 32718.1667 0.01% - 0s 0 0 32718.1667 0 1 32722.0000 32718.1667 0.01% - 0s Cutting planes: Implied bound: 9 Flow cover: 3 Explored 0 nodes (678 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.272200000000e+04, best bound 3.272200000000e+04, gap 0.0%