Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:30:08 2014 Optimize a model with 4096 rows, 2071 columns and 10125 nonzeros Presolve removed 45 rows and 0 columns Presolve time: 0.13s Presolved: 4051 rows, 2071 columns, 10080 nonzeros Variable types: 1 continuous, 2070 integer (2070 binary) Found heuristic solution: objective 1.0118611 Found heuristic solution: objective 1.0084593 Found heuristic solution: objective 0.9111447 Root relaxation: objective 7.915249e-03, 2826 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00792 0 1917 0.91114 0.00792 99.1% - 0s H 0 0 0.8947428 0.00792 99.1% - 0s H 0 0 0.6049301 0.00792 98.7% - 0s 0 0 0.01310 0 1204 0.60493 0.01310 97.8% - 1s 0 0 0.03012 0 872 0.60493 0.03012 95.0% - 1s H 0 0 0.5766188 0.03012 94.8% - 1s H 0 0 0.4679061 0.03012 93.6% - 1s 0 0 0.07505 0 331 0.46791 0.07505 84.0% - 2s H 0 0 0.4314351 0.07505 82.6% - 2s 0 1 0.07720 0 330 0.43144 0.07720 82.1% - 3s H 1 1 0.3617794 0.07720 78.7% 747 3s H 3 2 0.3523706 0.19347 45.1% 249 3s H 4 2 0.3114500 0.20167 35.2% 187 3s H 5 3 0.2873065 0.21141 26.4% 149 3s H 8 5 0.2778277 0.23365 15.9% 545 3s H 9 5 0.2662190 0.23365 12.2% 533 4s Cutting planes: Gomory: 2 MIR: 6 Explored 9 nodes (22742 simplex iterations) in 4.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.662190114607e-01, best bound 2.662190114607e-01, gap 0.0%