Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:07:07 2012 Optimize a model with 555 rows, 503 columns and 1888 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 555 rows, 478 columns, 1863 nonzeros Variable types: 0 continuous, 478 integer (477 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 290 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 99.00000 0.00000 100% - 0s H 0 0 95.0000000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s H 0 0 76.0000000 0.00000 100% - 0s 0 0 0.41641 0 199 76.00000 0.41641 99.5% - 0s H 0 0 75.0000000 0.41641 99.4% - 0s 0 0 1.00000 0 202 75.00000 1.00000 98.7% - 0s H 0 0 72.0000000 1.00000 98.6% - 0s 0 0 1.00000 0 203 72.00000 1.00000 98.6% - 0s 0 0 1.00000 0 198 72.00000 1.00000 98.6% - 0s H 0 0 71.0000000 1.00000 98.6% - 0s H 0 0 69.0000000 1.00000 98.6% - 0s H 0 0 63.0000000 1.00000 98.4% - 0s 0 2 1.00000 0 198 63.00000 1.00000 98.4% - 0s H 27 27 52.0000000 3.45064 93.4% 51.2 0s H 54 54 48.0000000 3.45064 92.8% 33.9 0s * 65 42 35 26.0000000 3.45064 86.7% 32.6 0s * 127 66 16 25.0000000 5.27692 78.9% 30.8 0s * 702 230 39 24.0000000 12.70270 47.1% 33.0 1s Cutting planes: Gomory: 2 Explored 2225 nodes (61631 simplex iterations) in 3.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%