current bounds on the number of colors: 0 -- 205 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:24 2012 Optimize a model with 22033 rows, 21124 columns and 86394 nonzeros Presolve removed 16 rows and 1632 columns Presolve time: 0.14s Presolved: 22017 rows, 19492 columns, 84762 nonzeros Variable types: 0 continuous, 19492 integer (19492 binary) Root relaxation: objective 0.000000e+00, 353 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 (353 simplex iterations) in 0.16 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 -- 102 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:25 2012 Optimize a model with 11119 rows, 10669 columns and 43197 nonzeros Presolve removed 16 rows and 816 columns Presolve time: 0.11s Presolved: 11103 rows, 9853 columns, 42381 nonzeros Variable types: 0 continuous, 9853 integer (9853 binary) Root relaxation: objective 0.000000e+00, 351 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 (351 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 -- 51 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:25 2012 Optimize a model with 5555 rows, 5339 columns and 21175 nonzeros Presolve removed 16 rows and 400 columns Presolve time: 0.03s Presolved: 5539 rows, 4939 columns, 20775 nonzeros Variable types: 0 continuous, 4939 integer (4939 binary) Root relaxation: objective 0.000000e+00, 351 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 (351 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:25 2012 Optimize a model with 2773 rows, 2674 columns and 10164 nonzeros Presolve removed 16 rows and 192 columns Presolve time: 0.01s Presolved: 2757 rows, 2482 columns, 9972 nonzeros Variable types: 0 continuous, 2482 integer (2482 binary) Root relaxation: objective 0.000000e+00, 344 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 (344 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:25 2012 Optimize a model with 1489 rows, 1444 columns and 5082 nonzeros Presolve removed 16 rows and 96 columns Presolve time: 0.01s Presolved: 1473 rows, 1348 columns, 4986 nonzeros Variable types: 0 continuous, 1348 integer (1348 binary) Root relaxation: objective 0.000000e+00, 333 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 (333 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 16:31:25 2012 Optimize a model with 847 rows, 829 columns and 2541 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 831 rows, 781 columns, 2493 nonzeros Variable types: 0 continuous, 781 integer (781 binary) Root relaxation: objective 0.000000e+00, 324 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 (324 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:25 2012 Optimize a model with 419 rows, 419 columns and 847 nonzeros Presolve removed 419 rows and 419 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 16:31:25 2012 Optimize a model with 633 rows, 624 columns and 1694 nonzeros Presolve removed 215 rows and 236 columns Presolve time: 0.00s Presolved: 418 rows, 388 columns, 1254 nonzeros Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: objective 0.000000e+00, 198 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 0 171 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (634 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