Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:26:04 2012 Optimize a model with 531 rows, 494 columns and 1819 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 531 rows, 476 columns, 1801 nonzeros Variable types: 0 continuous, 476 integer (475 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 256 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 0 199 99.00000 0.00000 100% - 0s H 0 0 94.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s 0 0 0.38811 0 200 67.00000 0.38811 99.4% - 0s H 0 0 65.0000000 0.38811 99.4% - 0s 0 0 1.00000 0 202 65.00000 1.00000 98.5% - 0s H 0 0 59.0000000 1.00000 98.3% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s 0 0 1.00000 0 202 53.00000 1.00000 98.1% - 0s H 0 0 50.0000000 1.00000 98.0% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 44.0000000 1.00000 97.7% - 0s 0 2 1.00000 0 202 44.00000 1.00000 97.7% - 0s H 27 27 37.0000000 1.06425 97.1% 45.9 0s H 54 36 19.0000000 1.06425 94.4% 35.2 0s * 104 59 15 18.0000000 1.09989 93.9% 39.4 0s * 315 120 17 17.0000000 5.03571 70.4% 36.6 0s Cutting planes: Gomory: 3 Zero half: 4 Mod-K: 1 Explored 1346 nodes (44442 simplex iterations) in 1.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%