Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:49:33 2012 Optimize a model with 45779 rows, 44310 columns and 180598 nonzeros Presolve removed 32 rows and 6302 columns Presolve time: 1.08s Presolved: 45747 rows, 38008 columns, 173862 nonzeros Variable types: 0 continuous, 38008 integer (38008 binary) Found heuristic solution: objective 210.0000000 Root relaxation: objective 2.000000e+00, 28202 iterations, 2.34 seconds Total elapsed time = 6.25s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 340 210.00000 2.00000 99.0% - 7s H 0 0 194.0000000 2.00000 99.0% - 7s H 0 0 4.0000000 2.00000 50.0% - 7s H 0 0 3.0000000 2.00000 33.3% - 7s 0 0 infeasible 0 3.00000 2.00000 33.3% - 7s Cutting planes: Gomory: 2 Clique: 2 Zero half: 21 Explored 0 nodes (91017 simplex iterations) in 7.96 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%