Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:20:33 2012 Optimize a model with 533 rows, 494 columns and 1824 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 533 rows, 474 columns, 1804 nonzeros Variable types: 0 continuous, 474 integer (473 binary) Found heuristic solution: objective 92.0000000 Root relaxation: objective 0.000000e+00, 249 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 0 198 92.00000 0.00000 100% - 0s H 0 0 78.0000000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.46242 0 199 69.00000 0.46242 99.3% - 0s H 0 0 66.0000000 0.46242 99.3% - 0s H 0 0 53.0000000 0.46242 99.1% - 0s 0 0 1.00000 0 200 53.00000 1.00000 98.1% - 0s H 0 0 51.0000000 1.00000 98.0% - 0s H 0 0 46.0000000 1.00000 97.8% - 0s 0 0 1.00361 0 201 46.00000 1.00361 97.8% - 0s H 0 0 37.0000000 1.00361 97.3% - 0s H 0 0 33.0000000 1.00361 97.0% - 0s 0 2 1.00450 0 201 33.00000 1.00450 97.0% - 0s * 52 46 31 21.0000000 1.01835 95.2% 27.4 0s * 397 239 32 20.0000000 1.14814 94.3% 29.6 0s H 559 295 19.0000000 1.40143 92.6% 31.5 0s * 835 391 30 18.0000000 6.95594 61.4% 34.0 2s 2378 143 14.97241 22 172 18.00000 14.00000 22.2% 26.5 5s Cutting planes: Gomory: 9 Zero half: 2 Explored 2742 nodes (72443 simplex iterations) in 5.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%