Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012 Optimize a model with 371 rows, 38 columns and 742 nonzeros Presolve removed 268 rows and 0 columns Presolve time: 0.00s Presolved: 103 rows, 38 columns, 568 nonzeros Variable types: 0 continuous, 38 integer (38 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 7.600000e+00, 66 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7.60000 0 22 5.00000 7.60000 52.0% - 0s H 0 0 7.0000000 7.60000 8.57% - 0s Explored 0 nodes (78 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%