Gurobi 5.0.1 (linux64) logging started Fri Jan 25 12:36:02 2013 Optimize a model with 10 rows, 250 columns and 2500 nonzeros Presolve time: 0.00s Presolved: 10 rows, 250 columns, 2500 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 148968.00000 Root relaxation: objective 1.533654e+05, 39 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 153365.436 0 10 148968.000 153365.436 2.95% - 0s H 0 0 152838.00000 153365.436 0.35% - 0s 0 0 153363.240 0 13 152838.000 153363.240 0.34% - 0s 0 0 153362.550 0 13 152838.000 153362.550 0.34% - 0s 0 2 153362.163 0 13 152838.000 153362.163 0.34% - 0s H 21 21 152927.00000 153355.211 0.28% 3.0 0s H 41 41 152965.00000 153355.211 0.26% 3.5 0s H 121 100 152982.00000 153352.995 0.24% 3.1 0s H 830 587 153023.00000 153336.123 0.20% 3.7 0s H 1699 951 153035.00000 153328.276 0.19% 4.0 0s H 4189 2664 153074.00000 153316.298 0.16% 3.9 0s H 6249 3483 153131.00000 153311.251 0.12% 3.9 0s 46754 23402 153265.919 40 11 153131.000 153265.919 0.09% 3.8 5s 111410 38155 cutoff 54 153131.000 153248.679 0.08% 3.9 10s 176729 62256 153188.228 53 10 153131.000 153232.786 0.07% 3.9 15s 243068 81171 153212.557 55 9 153131.000 153222.398 0.06% 4.0 20s 311911 95857 153161.168 53 10 153131.000 153213.968 0.05% 4.0 25s 381026 106235 153160.419 54 9 153131.000 153207.049 0.05% 4.0 30s 449653 112573 153185.003 56 10 153131.000 153200.941 0.05% 3.9 35s 520054 115191 153161.796 62 9 153131.000 153195.238 0.04% 3.9 40s 591890 113805 153153.004 56 10 153131.000 153189.639 0.04% 3.9 45s 662704 107674 153163.772 60 10 153131.000 153184.195 0.03% 3.9 50s 735564 96429 cutoff 61 153131.000 153178.324 0.03% 3.9 55s 808496 78499 153148.419 62 10 153131.000 153171.572 0.03% 3.9 60s 881888 49970 cutoff 60 153131.000 153162.025 0.02% 3.9 65s Cutting planes: Gomory: 9 Cover: 2 MIR: 2 Explored 937281 nodes (3563087 simplex iterations) in 68.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.531310000000e+05, best bound 1.531460000000e+05, gap 0.0098%