Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:17 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 3.502125e+04, 517 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35021.2530 0 9 - 35021.2530 - - 0s H 0 0 37103.000000 35021.2530 5.61% - 0s H 0 0 36655.000000 35021.2530 4.46% - 0s 0 0 35494.6287 0 4 36655.0000 35494.6287 3.17% - 0s 0 0 35513.5399 0 3 36655.0000 35513.5399 3.11% - 0s 0 0 35517.2721 0 3 36655.0000 35517.2721 3.10% - 0s 0 0 35517.9774 0 3 36655.0000 35517.9774 3.10% - 0s 0 0 35518.8638 0 3 36655.0000 35518.8638 3.10% - 0s H 0 0 35567.000000 35518.8638 0.14% - 0s 0 0 35518.8638 0 6 35567.0000 35518.8638 0.14% - 0s 0 0 35566.7736 0 1 35567.0000 35566.7736 0.00% - 0s Cutting planes: Implied bound: 76 Flow cover: 3 Explored 0 nodes (1108 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.556700000000e+04, best bound 3.556677358491e+04, gap 0.0006%