Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:49 2012 Optimize a model with 403 rows, 392 columns and 1397 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 403 rows, 368 columns, 1373 nonzeros Variable types: 0 continuous, 368 integer (367 binary) Found heuristic solution: objective 80.0000000 Root relaxation: objective 0.000000e+00, 222 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 0 161 80.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.39812 0 164 54.00000 0.39812 99.3% - 0s H 0 0 47.0000000 0.39812 99.2% - 0s 0 0 1.01165 0 166 47.00000 1.01165 97.8% - 0s H 0 0 41.0000000 1.01165 97.5% - 0s 0 0 1.01218 0 169 41.00000 1.01218 97.5% - 0s 0 0 1.01218 0 169 41.00000 1.01218 97.5% - 0s H 0 0 37.0000000 1.01218 97.3% - 0s H 0 0 32.0000000 1.01218 96.8% - 0s 0 2 1.01514 0 168 32.00000 1.01514 96.8% - 0s H 27 27 29.0000000 1.34812 95.4% 34.3 0s * 53 33 31 13.0000000 1.34812 89.6% 28.7 0s * 80 37 20 11.0000000 1.36305 87.6% 29.3 0s Cutting planes: Gomory: 4 Zero half: 2 Mod-K: 1 Explored 550 nodes (14927 simplex iterations) in 0.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%