Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:08:23 2012 Optimize a model with 439 rows, 424 columns and 1519 nonzeros Presolve removed 0 rows and 15 columns Presolve time: 0.00s Presolved: 439 rows, 409 columns, 1504 nonzeros Variable types: 0 continuous, 409 integer (408 binary) Found heuristic solution: objective 84.0000000 Root relaxation: objective 0.000000e+00, 236 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 0 173 84.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s 0 0 0.35508 0 174 59.00000 0.35508 99.4% - 0s H 0 0 58.0000000 0.35508 99.4% - 0s 0 0 1.00000 0 178 58.00000 1.00000 98.3% - 0s H 0 0 40.0000000 1.00000 97.5% - 0s H 0 0 36.0000000 1.00000 97.2% - 0s 0 0 1.00000 0 180 36.00000 1.00000 97.2% - 0s 0 0 1.00000 0 176 36.00000 1.00000 97.2% - 0s H 0 0 34.0000000 1.00000 97.1% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s H 0 0 27.0000000 1.00000 96.3% - 0s 0 2 1.00000 0 176 27.00000 1.00000 96.3% - 0s H 27 27 22.0000000 1.00000 95.5% 48.4 0s H 51 34 14.0000000 1.00000 92.9% 30.2 0s * 97 39 32 12.0000000 1.28527 89.3% 25.9 0s * 587 6 11 11.0000000 9.64286 12.3% 26.8 0s Cutting planes: Gomory: 3 Zero half: 7 Explored 596 nodes (17421 simplex iterations) in 0.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%