Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:15:19 2012 Optimize a model with 535 rows, 494 columns and 1829 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 535 rows, 470 columns, 1805 nonzeros Variable types: 0 continuous, 470 integer (469 binary) Found heuristic solution: objective 100.0000000 Root relaxation: objective 0.000000e+00, 260 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 0 196 100.00000 0.00000 100% - 0s H 0 0 81.0000000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s 0 0 0.40986 0 197 64.00000 0.40986 99.4% - 0s H 0 0 60.0000000 0.40986 99.3% - 0s 0 0 1.00000 0 200 60.00000 1.00000 98.3% - 0s H 0 0 56.0000000 1.00000 98.2% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s 0 0 1.00000 0 199 53.00000 1.00000 98.1% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s 0 0 1.00000 0 201 48.00000 1.00000 97.9% - 0s 0 0 1.00000 0 198 48.00000 1.00000 97.9% - 0s H 0 0 47.0000000 1.00000 97.9% - 0s 0 2 1.00000 0 198 47.00000 1.00000 97.9% - 0s H 27 27 26.0000000 1.00000 96.2% 67.9 0s * 47 31 29 19.0000000 1.00000 94.7% 52.1 0s * 302 111 13 18.0000000 6.70270 62.8% 36.7 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 1191 nodes (40510 simplex iterations) in 1.78 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%