Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:35 2013 Optimize a model with 30 rows, 532 columns and 4437 nonzeros Presolve removed 12 rows and 124 columns Presolve time: 0.01s Presolved: 18 rows, 408 columns, 4014 nonzeros Variable types: 400 continuous, 8 integer (8 binary) Root relaxation: objective 3.432710e+03, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3432.71025 0 3 - 3432.71025 - - 0s 0 0 3432.71429 0 3 - 3432.71429 - - 0s 0 0 3432.74021 0 2 - 3432.74021 - - 0s H 0 0 3432.7433206 3432.74021 0.00% - 0s Cutting planes: Implied bound: 1 Flow cover: 1 Explored 0 nodes (20 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.432743320581e+03, best bound 3.432740209824e+03, gap 0.0001%