Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:19 2013 Optimize a model with 396 rows, 12996 columns and 25956 nonzeros Presolve time: 0.02s Presolved: 396 rows, 12996 columns, 25956 nonzeros Variable types: 12960 continuous, 36 integer (36 binary) Root relaxation: objective 3.583441e+04, 588 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35834.4132 0 6 - 35834.4132 - - 0s H 0 0 36309.000000 35834.4132 1.31% - 0s 0 0 36302.2988 0 3 36309.0000 36302.2988 0.02% - 0s 0 0 36304.1852 0 2 36309.0000 36304.1852 0.01% - 0s 0 0 36304.1852 0 6 36309.0000 36304.1852 0.01% - 0s 0 0 36304.1852 0 3 36309.0000 36304.1852 0.01% - 0s 0 0 36304.1852 0 3 36309.0000 36304.1852 0.01% - 0s 0 0 36304.9630 0 1 36309.0000 36304.9630 0.01% - 0s 0 0 36306.2578 0 2 36309.0000 36306.2578 0.01% - 0s Cutting planes: Implied bound: 42 Flow cover: 3 Explored 0 nodes (1189 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.630900000000e+04, best bound 3.630625779626e+04, gap 0.0076%