Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:40:29 2012 Optimize a model with 301 rows, 322 columns and 1072 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 301 rows, 294 columns, 1044 nonzeros Variable types: 0 continuous, 294 integer (293 binary) Found heuristic solution: objective 45.0000000 Root relaxation: objective 0.000000e+00, 190 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 113 45.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.05627 0 115 29.00000 0.05627 100% - 0s H 0 0 21.0000000 0.05627 100% - 0s 0 0 0.66667 0 124 21.00000 0.66667 96.8% - 0s H 0 0 20.0000000 0.66667 96.7% - 0s 0 0 0.66667 0 115 20.00000 0.66667 96.7% - 0s H 0 0 17.0000000 0.66667 96.1% - 0s H 0 0 16.0000000 0.66667 95.8% - 0s H 0 0 10.0000000 0.66667 93.3% - 0s 0 2 0.66667 0 115 10.00000 0.66667 93.3% - 0s * 48 19 34 4.0000000 1.00000 75.0% 13.5 0s Cutting planes: Gomory: 2 Explored 111 nodes (2782 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%