Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012 Optimize a model with 157 rows, 75 columns and 314 nonzeros Presolve removed 35 rows and 7 columns Presolve time: 0.00s Presolved: 122 rows, 68 columns, 255 nonzeros Variable types: 0 continuous, 68 integer (68 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 3.475000e+01, 95 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 34.75000 0 59 32.00000 34.75000 8.59% - 0s H 0 0 33.0000000 34.75000 5.30% - 0s H 0 0 34.0000000 34.75000 2.21% - 0s Explored 0 nodes (124 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%