Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:12:32 2013 Optimize a model with 10 rows, 100 columns and 1000 nonzeros Presolve time: 0.00s Presolved: 10 rows, 100 columns, 1000 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 53767.000000 Root relaxation: objective 5.666334e+04, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 56663.3438 0 10 53767.0000 56663.3438 5.39% - 0s H 0 0 56261.000000 56663.3438 0.72% - 0s 0 0 56649.6228 0 12 56261.0000 56649.6228 0.69% - 0s 0 0 56639.8110 0 13 56261.0000 56639.8110 0.67% - 0s 0 0 56637.9220 0 11 56261.0000 56637.9220 0.67% - 0s 0 0 56636.8795 0 15 56261.0000 56636.8795 0.67% - 0s 0 2 56636.7450 0 15 56261.0000 56636.7450 0.67% - 0s H 183 149 56323.000000 56627.8021 0.54% 3.6 0s H 351 243 56377.000000 56623.6065 0.44% 3.6 0s 89302 10996 56418.5195 25 8 56377.0000 56445.8178 0.12% 3.6 5s Cutting planes: Gomory: 5 Explored 118009 nodes (406698 simplex iterations) in 6.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.637700000000e+04, best bound 5.638200000000e+04, gap 0.0089%