Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:59:29 2012 Optimize a model with 425 rows, 407 columns and 1467 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 425 rows, 382 columns, 1442 nonzeros Variable types: 0 continuous, 382 integer (381 binary) Found heuristic solution: objective 79.0000000 Root relaxation: objective 0.000000e+00, 235 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 0 163 79.00000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 0 0.29469 0 165 51.00000 0.29469 99.4% - 0s H 0 0 49.0000000 0.29469 99.4% - 0s 0 0 0.87753 0 168 49.00000 0.87753 98.2% - 0s H 0 0 44.0000000 0.87753 98.0% - 0s 0 0 0.87753 0 168 44.00000 0.87753 98.0% - 0s H 0 0 43.0000000 0.87753 98.0% - 0s H 0 0 41.0000000 0.87753 97.9% - 0s H 0 0 38.0000000 0.87753 97.7% - 0s H 0 0 32.0000000 0.87753 97.3% - 0s 0 2 0.87906 0 168 32.00000 0.87906 97.3% - 0s H 27 27 27.0000000 1.00000 96.3% 37.4 0s * 49 47 29 17.0000000 1.00000 94.1% 30.1 0s * 120 81 19 16.0000000 1.00000 93.8% 28.0 0s H 221 114 14.0000000 1.24441 91.1% 34.6 0s * 333 102 10 13.0000000 3.40741 73.8% 33.6 0s Cutting planes: Gomory: 4 Zero half: 7 Explored 703 nodes (23694 simplex iterations) in 0.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%