Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 168 rows, 26 columns and 336 nonzeros Presolve removed 116 rows and 1 columns Presolve time: 0.00s Presolved: 52 rows, 25 columns, 235 nonzeros Variable types: 0 continuous, 25 integer (25 binary) Found heuristic solution: objective 4.0000000 Root relaxation: objective 6.125000e+00, 36 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6.12500 0 17 4.00000 6.12500 53.1% - 0s H 0 0 5.0000000 6.12500 22.5% - 0s H 0 0 6.0000000 6.12500 2.08% - 0s Explored 0 nodes (48 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%