Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:53 2012 Optimize a model with 349 rows, 360 columns and 1230 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 349 rows, 332 columns, 1202 nonzeros Variable types: 0 continuous, 332 integer (331 binary) Found heuristic solution: objective 59.0000000 Root relaxation: objective 0.000000e+00, 221 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 0 144 59.00000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.37630 0 145 44.00000 0.37630 99.1% - 0s H 0 0 38.0000000 0.37630 99.0% - 0s 0 0 1.00000 0 150 38.00000 1.00000 97.4% - 0s H 0 0 34.0000000 1.00000 97.1% - 0s 0 0 1.00000 0 152 34.00000 1.00000 97.1% - 0s 0 0 1.00000 0 147 34.00000 1.00000 97.1% - 0s H 0 0 32.0000000 1.00000 96.9% - 0s 0 2 1.00000 0 147 32.00000 1.00000 96.9% - 0s * 15 13 8 8.0000000 1.00000 87.5% 51.4 0s H 45 15 7.0000000 1.00000 85.7% 36.8 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 91 nodes (4400 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%