Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:06:44 2012 Optimize a model with 565 rows, 508 columns and 1918 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 565 rows, 491 columns, 1901 nonzeros Variable types: 0 continuous, 491 integer (490 binary) Found heuristic solution: objective 105.0000000 Root relaxation: objective 0.000000e+00, 284 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 0 200 105.00000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.32798 0 202 69.00000 0.32798 100% - 0s H 0 0 64.0000000 0.32798 99.5% - 0s 0 0 0.84116 0 207 64.00000 0.84116 98.7% - 0s H 0 0 59.0000000 0.84116 98.6% - 0s H 0 0 47.0000000 0.84116 98.2% - 0s 0 0 0.84116 0 208 47.00000 0.84116 98.2% - 0s 0 0 0.84116 0 207 47.00000 0.84116 98.2% - 0s 0 2 0.84301 0 207 47.00000 0.84301 98.2% - 0s H 27 27 45.0000000 1.00000 97.8% 53.1 0s H 54 54 41.0000000 1.00000 97.6% 35.7 0s H 77 63 29.0000000 1.00000 96.6% 30.9 0s H 130 81 27.0000000 1.00000 96.3% 30.8 0s H 297 203 25.0000000 1.10424 95.6% 35.2 0s 2851 741 22.84277 24 204 25.00000 14.03419 43.9% 31.0 5s * 3155 738 32 24.0000000 14.43478 39.9% 30.3 5s 6091 668 22.53488 23 218 24.00000 17.62500 26.6% 30.2 10s Explored 8933 nodes (262445 simplex iterations) in 14.10 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%