Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:26 2012 Optimize a model with 329 rows, 345 columns and 1165 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 329 rows, 323 columns, 1143 nonzeros Variable types: 0 continuous, 323 integer (322 binary) Found heuristic solution: objective 67.0000000 Root relaxation: objective 0.000000e+00, 189 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 0 134 67.00000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.19638 0 136 33.00000 0.19638 99.4% - 0s H 0 0 22.0000000 0.19638 99.1% - 0s H 0 0 8.0000000 0.19638 97.5% - 0s 0 0 0.82288 0 140 8.00000 0.82288 89.7% - 0s H 0 0 6.0000000 0.82288 86.3% - 0s 0 0 0.82288 0 140 6.00000 0.82288 86.3% - 0s H 0 0 5.0000000 0.82288 83.5% - 0s 0 2 0.82384 0 140 5.00000 0.82384 83.5% - 0s * 44 22 29 4.0000000 1.00000 75.0% 16.1 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 130 nodes (4017 simplex iterations) in 0.17 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%