Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:39:03 2012 Optimize a model with 593 rows, 527 columns and 2007 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 593 rows, 505 columns, 1985 nonzeros Variable types: 0 continuous, 505 integer (504 binary) Found heuristic solution: objective 106.0000000 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 0 200 106.00000 0.00000 100% - 0s H 0 0 93.0000000 0.00000 100% - 0s H 0 0 92.0000000 0.00000 100% - 0s H 0 0 84.0000000 0.00000 100% - 0s 0 0 0.48164 0 201 84.00000 0.48164 99.4% - 0s H 0 0 83.0000000 0.48164 99.4% - 0s 0 0 1.00000 0 206 83.00000 1.00000 98.8% - 0s H 0 0 82.0000000 1.00000 98.8% - 0s 0 0 1.00000 0 204 82.00000 1.00000 98.8% - 0s H 0 0 68.0000000 1.00000 98.5% - 0s H 0 0 66.0000000 1.00000 98.5% - 0s 0 0 1.00000 0 207 66.00000 1.00000 98.5% - 0s 0 0 1.00000 0 202 66.00000 1.00000 98.5% - 0s H 0 0 62.0000000 1.00000 98.4% - 0s H 0 0 60.0000000 1.00000 98.3% - 0s H 0 0 58.0000000 1.00000 98.3% - 0s 0 2 1.00000 0 202 58.00000 1.00000 98.3% - 0s H 27 27 45.0000000 1.00000 97.8% 44.1 0s * 49 45 29 28.0000000 1.00000 96.4% 33.4 0s H 154 97 23.0000000 1.00000 95.7% 42.3 0s 2638 450 21.92941 25 206 23.00000 15.85393 31.1% 29.1 5s 5858 172 cutoff 24 23.00000 20.12121 12.5% 25.6 10s Explored 6136 nodes (156544 simplex iterations) in 10.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%