Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:20 2013 Optimize a model with 232 rows, 446 columns and 1490 nonzeros Presolve removed 157 rows and 294 columns Presolve time: 0.01s Presolved: 75 rows, 152 columns, 436 nonzeros Variable types: 87 continuous, 65 integer (65 binary) Root relaxation: objective 3.893871e+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 3893.87054 0 2 - 3893.87054 - - 0s H 0 0 3893.8994555 3893.87054 0.00% - 0s Explored 0 nodes (18 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.893899455474e+03, best bound 3.893870537512e+03, gap 0.0007%