Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:38 2013 Optimize a model with 175 rows, 100 columns and 550 nonzeros Presolve removed 86 rows and 55 columns Presolve time: 0.00s Presolved: 89 rows, 45 columns, 306 nonzeros Variable types: 6 continuous, 39 integer (39 binary) Found heuristic solution: objective 1238.0000000 Root relaxation: objective 9.694054e+02, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 969.40541 0 3 1238.00000 969.40541 21.7% - 0s H 0 0 986.0000000 969.40541 1.68% - 0s 0 0 975.16179 0 7 986.00000 975.16179 1.10% - 0s H 0 0 983.0000000 975.16179 0.80% - 0s 0 0 977.40677 0 10 983.00000 977.40677 0.57% - 0s 0 0 977.40677 0 3 983.00000 977.40677 0.57% - 0s H 0 0 978.0000000 977.40677 0.06% - 0s Explored 0 nodes (54 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.780000000000e+02, best bound 9.780000000000e+02, gap 0.0%