current bounds on the number of colors: 0 -- 152 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:11 2012 Optimize a model with 8968 rows, 11668 columns and 38000 nonzeros Presolve removed 29 rows and 2204 columns Presolve time: 0.11s Presolved: 8939 rows, 9464 columns, 35796 nonzeros Variable types: 0 continuous, 9464 integer (9464 binary) Root relaxation: objective 0.000000e+00, 212 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (212 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 76 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 4560 rows, 5892 columns and 19000 nonzeros Presolve removed 29 rows and 1102 columns Presolve time: 0.04s Presolved: 4531 rows, 4790 columns, 17898 nonzeros Variable types: 0 continuous, 4790 integer (4790 binary) Root relaxation: objective 0.000000e+00, 213 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (213 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 38 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 2356 rows, 3004 columns and 9500 nonzeros Presolve removed 29 rows and 551 columns Presolve time: 0.01s Presolved: 2327 rows, 2453 columns, 8949 nonzeros Variable types: 0 continuous, 2453 integer (2453 binary) Root relaxation: objective 0.000000e+00, 212 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (212 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 19 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 1196 rows, 1484 columns and 4500 nonzeros Presolve removed 29 rows and 261 columns Presolve time: 0.01s Presolved: 1167 rows, 1223 columns, 4239 nonzeros Variable types: 0 continuous, 1223 integer (1223 binary) Root relaxation: objective 0.000000e+00, 208 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (208 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 9 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 616 rows, 724 columns and 2000 nonzeros Presolve removed 29 rows and 116 columns Presolve time: 0.00s Presolved: 587 rows, 608 columns, 1884 nonzeros Variable types: 0 continuous, 608 integer (608 binary) Root relaxation: objective 0.000000e+00, 181 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (181 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 384 rows, 420 columns and 1000 nonzeros Presolve removed 160 rows and 193 columns Presolve time: 0.00s Presolved: 224 rows, 227 columns, 672 nonzeros Variable types: 0 continuous, 227 integer (227 binary) Root relaxation: objective 0.000000e+00, 101 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (101 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 2 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:12 2012 Optimize a model with 268 rows, 268 columns and 500 nonzeros Presolve removed 268 rows and 268 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - optimal solution found: number of colors: 2