Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:12:39 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 55820.000000 Root relaxation: objective 5.966369e+04, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 59663.6853 0 10 55820.0000 59663.6853 6.89% - 0s H 0 0 59208.000000 59663.6853 0.77% - 0s 0 0 59655.8203 0 11 59208.0000 59655.8203 0.76% - 0s 0 0 59649.6044 0 13 59208.0000 59649.6044 0.75% - 0s 0 0 59645.5881 0 13 59208.0000 59645.5881 0.74% - 0s 0 0 59643.5112 0 13 59208.0000 59643.5112 0.74% - 0s 0 2 59643.0221 0 13 59208.0000 59643.0221 0.73% - 0s H 25 25 59240.000000 59623.0125 0.65% 3.9 0s H 218 143 59391.000000 59613.9455 0.38% 3.1 0s Explored 15772 nodes (53471 simplex iterations) in 0.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.939100000000e+04, best bound 5.939600000000e+04, gap 0.0084%