Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:10:21 2013 Optimize a model with 377 rows, 169 columns and 1183 nonzeros Presolve removed 81 rows and 81 columns Presolve time: 0.00s Presolved: 296 rows, 88 columns, 988 nonzeros Variable types: 10 continuous, 78 integer (78 binary) Found heuristic solution: objective 3039.0000000 Root relaxation: objective 2.188838e+03, 43 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2188.83784 0 7 3039.00000 2188.83784 28.0% - 0s H 0 0 2219.0000000 2188.83784 1.36% - 0s H 0 0 2209.0000000 2188.83784 0.91% - 0s 0 0 2192.88467 0 23 2209.00000 2192.88467 0.73% - 0s 0 0 2192.88467 0 7 2209.00000 2192.88467 0.73% - 0s H 0 0 2208.0000000 2192.88467 0.68% - 0s H 0 0 2204.0000000 2192.88467 0.50% - 0s 0 0 2193.74824 0 22 2204.00000 2193.74824 0.47% - 0s 0 0 2195.86438 0 19 2204.00000 2195.86438 0.37% - 0s H 0 0 2199.0000000 2195.86438 0.14% - 0s H 0 0 2197.0000000 2195.86438 0.05% - 0s 0 0 2197.00000 0 19 2197.00000 2197.00000 0.0% - 0s Cutting planes: Gomory: 1 Implied bound: 2 MIR: 8 Explored 1 nodes (157 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.197000000000e+03, best bound 2.197000000000e+03, gap 0.0%