Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:12:50 2012 Optimize a model with 1799 rows, 2070 columns and 7243 nonzeros Presolve removed 8 rows and 272 columns Presolve time: 0.09s Presolved: 1791 rows, 1798 columns, 6893 nonzeros Variable types: 0 continuous, 1798 integer (1798 binary) Found heuristic solution: objective 45.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 62 3.00000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (148 simplex iterations) in 0.10 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%