Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:34:08 2012 Optimize a model with 26969 rows, 30450 columns and 110488 nonzeros Presolve removed 33 rows and 5396 columns Presolve time: 0.57s Presolved: 26936 rows, 25054 columns, 104784 nonzeros Variable types: 0 continuous, 25054 integer (25054 binary) Found heuristic solution: objective 174.0000000 Root relaxation: objective 2.000000e+00, 18304 iterations, 1.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 256 174.00000 2.00000 98.9% - 3s H 0 0 168.0000000 2.00000 98.8% - 3s H 0 0 3.0000000 2.00000 33.3% - 3s 0 0 infeasible 0 3.00000 2.00000 33.3% - 3s Cutting planes: Gomory: 1 Zero half: 20 Explored 0 nodes (58700 simplex iterations) in 3.61 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%