current bounds on the number of colors: 0 -- 210 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:06 2012 Optimize a model with 24990 rows, 22286 columns and 96390 nonzeros Presolve removed 19 rows and 1995 columns Presolve time: 0.15s Presolved: 24971 rows, 20291 columns, 94395 nonzeros Variable types: 0 continuous, 20291 integer (20291 binary) Root relaxation: objective 0.000000e+00, 364 iterations, 0.01 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 (364 simplex iterations) in 0.17 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 -- 105 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 12482 rows, 11156 columns and 47736 nonzeros Presolve removed 19 rows and 988 columns Presolve time: 0.11s Presolved: 12463 rows, 10168 columns, 46748 nonzeros Variable types: 0 continuous, 10168 integer (10168 binary) Root relaxation: objective 0.000000e+00, 364 iterations, 0.01 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 (364 simplex iterations) in 0.13 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 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 6346 rows, 5696 columns and 23868 nonzeros Presolve removed 19 rows and 494 columns Presolve time: 0.04s Presolved: 6327 rows, 5202 columns, 23374 nonzeros Variable types: 0 continuous, 5202 integer (5202 binary) Root relaxation: objective 0.000000e+00, 360 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 (360 simplex iterations) in 0.05 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 3278 rows, 2966 columns and 11934 nonzeros Presolve removed 19 rows and 247 columns Presolve time: 0.01s Presolved: 3259 rows, 2719 columns, 11687 nonzeros Variable types: 0 continuous, 2719 integer (2719 binary) Root relaxation: objective 0.000000e+00, 376 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 (576 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 1626 rows, 1496 columns and 5508 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1607 rows, 1382 columns, 5394 nonzeros Variable types: 0 continuous, 1382 integer (1382 binary) Root relaxation: objective 0.000000e+00, 339 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 (339 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 918 rows, 866 columns and 2754 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 899 rows, 809 columns, 2697 nonzeros Variable types: 0 continuous, 809 integer (809 binary) Root relaxation: objective 0.000000e+00, 338 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 (514 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 446 rows, 446 columns and 918 nonzeros Presolve removed 446 rows and 446 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 - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:07 2012 Optimize a model with 682 rows, 656 columns and 1836 nonzeros Presolve removed 214 rows and 235 columns Presolve time: 0.00s Presolved: 468 rows, 421 columns, 1404 nonzeros Variable types: 0 continuous, 421 integer (421 binary) Root relaxation: objective 0.000000e+00, 210 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 184 - 0.00000 - - 0s Explored 0 nodes (650 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3