Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:18:00 2013 Optimize a model with 5 rows, 250 columns and 1250 nonzeros Presolve time: 0.00s Presolved: 5 rows, 250 columns, 1250 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 49305.000000 Root relaxation: objective 6.203259e+04, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 62032.5947 0 5 49305.0000 62032.5947 25.8% - 0s H 0 0 61683.000000 62032.5947 0.57% - 0s 0 0 62031.8016 0 6 61683.0000 62031.8016 0.57% - 0s 0 0 62031.4128 0 8 61683.0000 62031.4128 0.56% - 0s H 0 0 61792.000000 62031.4128 0.39% - 0s 0 0 62031.4128 0 5 61792.0000 62031.4128 0.39% - 0s 0 0 62031.4128 0 6 61792.0000 62031.4128 0.39% - 0s 0 0 62031.4128 0 8 61792.0000 62031.4128 0.39% - 0s 0 2 62030.7313 0 8 61792.0000 62030.7313 0.39% - 0s H 4981 3333 61809.000000 62002.3594 0.31% 2.3 0s H 5077 3395 61811.000000 62002.2467 0.31% 2.3 0s H 8796 6038 61821.000000 61995.8801 0.28% 2.3 0s H12125 7299 61870.000000 61994.1343 0.20% 2.3 0s H12312 6911 61885.000000 61994.1343 0.18% 2.3 0s 96118 21098 61904.9223 72 5 61885.0000 61960.1302 0.12% 2.3 5s 213399 23351 cutoff 73 61885.0000 61926.0755 0.07% 2.3 10s Cutting planes: Gomory: 5 MIR: 7 Explored 268749 nodes (608083 simplex iterations) in 12.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.188500000000e+04, best bound 6.189100000000e+04, gap 0.0097%