Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:28 2012 Optimize a model with 1091 rows, 1560 columns and 4639 nonzeros Presolve removed 89 rows and 353 columns Presolve time: 0.06s Presolved: 1002 rows, 1207 columns, 4041 nonzeros Variable types: 0 continuous, 1207 integer (1207 binary) Found heuristic solution: objective 39.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (49 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%