current bounds on the number of colors: 0 -- 243 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:28 2012 Optimize a model with 34970 rows, 29690 columns and 133584 nonzeros Presolve removed 19 rows and 2299 columns Presolve time: 0.15s Presolved: 34951 rows, 27391 columns, 131285 nonzeros Variable types: 0 continuous, 27391 integer (27391 binary) Root relaxation: objective 0.000000e+00, 417 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 (417 simplex iterations) in 0.19 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 -- 121 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:29 2012 Optimize a model with 17463 rows, 14867 columns and 66240 nonzeros Presolve removed 19 rows and 1140 columns Presolve time: 0.13s Presolved: 17444 rows, 13727 columns, 65100 nonzeros Variable types: 0 continuous, 13727 integer (13727 binary) Root relaxation: objective 0.000000e+00, 417 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 (417 simplex iterations) in 0.14 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:30 2012 Optimize a model with 8853 rows, 7577 columns and 33120 nonzeros Presolve removed 19 rows and 570 columns Presolve time: 0.06s Presolved: 8834 rows, 7007 columns, 32550 nonzeros Variable types: 0 continuous, 7007 integer (7007 binary) Root relaxation: objective 0.000000e+00, 423 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 (629 simplex iterations) in 0.07 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:30 2012 Optimize a model with 4548 rows, 3932 columns and 16560 nonzeros Presolve removed 19 rows and 285 columns Presolve time: 0.02s Presolved: 4529 rows, 3647 columns, 16275 nonzeros Variable types: 0 continuous, 3647 integer (3647 binary) Root relaxation: objective 0.000000e+00, 426 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 (426 simplex iterations) in 0.03 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:30 2012 Optimize a model with 2252 rows, 1988 columns and 7728 nonzeros Presolve removed 19 rows and 133 columns Presolve time: 0.01s Presolved: 2233 rows, 1855 columns, 7595 nonzeros Variable types: 0 continuous, 1855 integer (1855 binary) Root relaxation: objective 0.000000e+00, 420 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 (420 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:30 2012 Optimize a model with 1104 rows, 1016 columns and 3312 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 1085 rows, 959 columns, 3255 nonzeros Variable types: 0 continuous, 959 integer (959 binary) Root relaxation: objective 0.000000e+00, 451 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 (617 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 16:45:30 2012 Optimize a model with 530 rows, 530 columns and 1104 nonzeros Presolve removed 530 rows and 530 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 16:45:30 2012 Optimize a model with 817 rows, 773 columns and 2208 nonzeros Presolve removed 249 rows and 271 columns Presolve time: 0.00s Presolved: 568 rows, 502 columns, 1704 nonzeros Variable types: 0 continuous, 502 integer (502 binary) Root relaxation: objective 0.000000e+00, 244 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 0 214 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (808 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