Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:34:58 2012 Optimize a model with 10030 rows, 3540 columns and 33394 nonzeros Presolve time: 0.08s Presolved: 10030 rows, 3540 columns, 33755 nonzeros Variable types: 0 continuous, 3540 integer (3540 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 2.000000e+00, 6357 iterations, 0.92 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 118 36.00000 2.00000 94.4% - 1s H 0 0 14.0000000 2.00000 85.7% - 1s H 0 0 5.0000000 2.00000 60.0% - 1s 0 0 2.00000 0 118 5.00000 2.00000 60.0% - 1s 0 0 2.00000 0 118 5.00000 2.00000 60.0% - 1s 0 0 2.00000 0 118 5.00000 2.00000 60.0% - 1s 0 0 2.00000 0 118 5.00000 2.00000 60.0% - 2s H 0 0 4.0000000 2.00000 50.0% - 2s 0 0 2.00000 0 118 4.00000 2.00000 50.0% - 2s 0 0 2.00000 0 118 4.00000 2.00000 50.0% - 3s 0 2 2.00000 0 118 4.00000 2.00000 50.0% - 6s 1 3 3.00000 1 536 4.00000 2.00000 50.0% 34763 16s 2 4 3.00000 1 532 4.00000 3.00000 25.0% 24944 21s 26 4 cutoff 5 4.00000 3.00000 25.0% 2433 25s 43 3 3.00000 4 110 4.00000 3.00000 25.0% 2008 30s 59 3 3.00000 3 535 4.00000 3.00000 25.0% 1880 35s Cutting planes: Gomory: 1 Clique: 38 Explored 79 nodes (141234 simplex iterations) in 38.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%