Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:23 2013 Optimize a model with 28 rows, 146 columns and 388 nonzeros Presolve removed 22 rows and 30 columns Presolve time: 0.00s Presolved: 6 rows, 116 columns, 230 nonzeros Variable types: 116 continuous, 0 integer (0 binary) Root relaxation: objective 7.659086e+03, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7659.08578 0 1 - 7659.08578 - - 0s H 0 0 7664.6344075 7659.08578 0.07% - 0s 0 2 7659.08578 0 1 7664.63441 7659.08578 0.07% - 0s Explored 5 nodes (8 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.664634407493e+03, best bound 7.664280553752e+03, gap 0.0046%