Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:34:33 2012 Optimize a model with 12610 rows, 17030 columns and 54340 nonzeros Presolve removed 27 rows and 3510 columns Presolve time: 0.22s Presolved: 12583 rows, 13520 columns, 50830 nonzeros Variable types: 0 continuous, 13520 integer (13520 binary) Found heuristic solution: objective 47.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 15817 iterations, 2.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 128 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 252 3.00000 2.00000 33.3% - 9s 0 0 2.00000 0 232 3.00000 2.00000 33.3% - 19s 0 0 2.00000 0 236 3.00000 2.00000 33.3% - 28s 0 0 2.00000 0 274 3.00000 2.00000 33.3% - 39s 0 0 2.00000 0 128 3.00000 2.00000 33.3% - 47s 0 0 2.00000 0 234 3.00000 2.00000 33.3% - 55s 0 0 2.00000 0 232 3.00000 2.00000 33.3% - 65s 0 0 2.00000 0 274 3.00000 2.00000 33.3% - 74s 0 0 2.00000 0 274 3.00000 2.00000 33.3% - 79s 0 2 2.00000 0 274 3.00000 2.00000 33.3% - 94s 2 3 2.00000 1 274 3.00000 2.00000 33.3% 11347 95s 4 4 2.00000 1 128 3.00000 2.00000 33.3% 5674 100s 5 5 2.00000 1 246 3.00000 2.00000 33.3% 4539 113s 6 6 2.00000 1 128 3.00000 2.00000 33.3% 3782 122s 7 6 2.00000 1 128 3.00000 2.00000 33.3% 3242 132s 8 7 2.00000 1 140 3.00000 2.00000 33.3% 2837 147s 9 8 2.00000 1 140 3.00000 2.00000 33.3% 2522 154s 10 8 2.00000 1 140 3.00000 2.00000 33.3% 2269 155s 11 9 infeasible 10 3.00000 2.00000 33.3% 17998 165s Cutting planes: Gomory: 11 Zero half: 4 Explored 13 nodes (442059 simplex iterations) in 165.87 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%