Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:40:44 2012 Optimize a model with 11700 rows, 17030 columns and 51610 nonzeros Presolve removed 34 rows and 4420 columns Presolve time: 0.20s Presolved: 11666 rows, 12610 columns, 47190 nonzeros Variable types: 0 continuous, 12610 integer (12610 binary) Found heuristic solution: objective 39.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 11181 iterations, 0.65 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 130 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 241 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 223 3.00000 2.00000 33.3% - 11s 0 0 2.00000 0 233 3.00000 2.00000 33.3% - 21s 0 0 2.00000 0 260 3.00000 2.00000 33.3% - 29s 0 0 2.00000 0 130 3.00000 2.00000 33.3% - 35s 0 0 2.00000 0 229 3.00000 2.00000 33.3% - 37s 0 0 2.00000 0 260 3.00000 2.00000 33.3% - 45s 0 0 2.00000 0 260 3.00000 2.00000 33.3% - 53s 0 0 2.00000 0 225 3.00000 2.00000 33.3% - 59s 0 0 2.00000 0 233 3.00000 2.00000 33.3% - 67s 0 0 2.00000 0 412 3.00000 2.00000 33.3% - 76s 0 0 2.00000 0 412 3.00000 2.00000 33.3% - 82s 0 2 2.00000 0 412 3.00000 2.00000 33.3% - 96s 4 4 2.00000 1 130 3.00000 2.00000 33.3% 5712 101s 5 5 2.00000 1 243 3.00000 2.00000 33.3% 4570 113s 6 6 2.00000 1 420 3.00000 2.00000 33.3% 3808 143s 7 6 2.00000 1 223 3.00000 2.00000 33.3% 3264 156s 9 8 infeasible 12 3.00000 2.00000 33.3% 16704 170s 10 7 2.00000 12 130 3.00000 2.00000 33.3% 15348 177s Cutting planes: Gomory: 11 Zero half: 6 Explored 12 nodes (430278 simplex iterations) in 177.69 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%