Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:48:38 2012 Optimize a model with 529 rows, 496 columns and 1816 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 529 rows, 478 columns, 1798 nonzeros Variable types: 0 continuous, 478 integer (477 binary) Found heuristic solution: objective 100.0000000 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 0 205 100.00000 0.00000 100% - 0s H 0 0 97.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s 0 0 0.28896 0 207 53.00000 0.28896 99.5% - 0s H 0 0 38.0000000 0.28896 99.2% - 0s 0 0 0.71111 0 209 38.00000 0.71111 98.1% - 0s H 0 0 32.0000000 0.71111 97.8% - 0s 0 0 0.71154 0 209 32.00000 0.71154 97.8% - 0s 0 0 0.71154 0 209 32.00000 0.71154 97.8% - 0s H 0 0 29.0000000 0.71154 97.5% - 0s H 0 0 28.0000000 0.71154 97.5% - 0s 0 2 0.71262 0 209 28.00000 0.71262 97.5% - 0s H 27 27 27.0000000 1.00000 96.3% 39.0 0s * 34 34 23 17.0000000 1.00000 94.1% 37.9 0s * 38 29 23 16.0000000 1.00000 93.8% 37.4 0s * 1247 65 23 15.0000000 11.81176 21.3% 30.5 1s Explored 1349 nodes (41662 simplex iterations) in 2.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%