Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:38:06 2012 Optimize a model with 599 rows, 537 columns and 2032 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 599 rows, 519 columns, 2014 nonzeros Variable types: 0 continuous, 519 integer (518 binary) Found heuristic solution: objective 115.0000000 Root relaxation: objective 0.000000e+00, 301 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 0 211 115.00000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s 0 0 0.41866 0 212 88.00000 0.41866 100% - 0s H 0 0 81.0000000 0.41866 99.5% - 0s 0 0 1.00000 0 214 81.00000 1.00000 98.8% - 0s H 0 0 78.0000000 1.00000 98.7% - 0s 0 0 1.03582 0 216 78.00000 1.03582 98.7% - 0s H 0 0 73.0000000 1.03582 98.6% - 0s H 0 0 71.0000000 1.03582 98.5% - 0s 0 0 1.03849 0 219 71.00000 1.03849 98.5% - 0s 0 0 1.03849 0 219 71.00000 1.03849 98.5% - 0s H 0 0 67.0000000 1.03849 98.5% - 0s H 0 0 64.0000000 1.03849 98.4% - 0s 0 2 1.03945 0 219 64.00000 1.03945 98.4% - 0s H 27 27 61.0000000 1.09924 98.2% 59.3 0s H 54 46 24.0000000 1.09924 95.4% 42.1 0s 2710 276 22.94505 24 224 24.00000 17.43939 27.3% 31.0 5s Explored 4287 nodes (127130 simplex iterations) in 7.33 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%