current bounds on the number of colors: 0 -- 241 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:41 2012 Optimize a model with 37321 rows, 29229 columns and 140160 nonzeros Presolve removed 14 rows and 1680 columns Presolve time: 0.19s Presolved: 37307 rows, 27549 columns, 138480 nonzeros Variable types: 0 continuous, 27549 integer (27549 binary) Root relaxation: objective 0.000000e+00, 447 iterations, 0.02 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 (447 simplex iterations) in 0.22 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 -- 120 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:42 2012 Optimize a model with 18781 rows, 14769 columns and 70080 nonzeros Presolve removed 14 rows and 840 columns Presolve time: 0.13s Presolved: 18767 rows, 13929 columns, 69240 nonzeros Variable types: 0 continuous, 13929 integer (13929 binary) Root relaxation: objective 0.000000e+00, 449 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 (666 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:42 2012 Optimize a model with 9511 rows, 7539 columns and 35040 nonzeros Presolve removed 14 rows and 420 columns Presolve time: 0.06s Presolved: 9497 rows, 7119 columns, 34620 nonzeros Variable types: 0 continuous, 7119 integer (7119 binary) Root relaxation: objective 0.000000e+00, 459 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 (459 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 16:44:42 2012 Optimize a model with 4876 rows, 3924 columns and 17520 nonzeros Presolve removed 14 rows and 210 columns Presolve time: 0.02s Presolved: 4862 rows, 3714 columns, 17310 nonzeros Variable types: 0 continuous, 3714 integer (3714 binary) Root relaxation: objective 0.000000e+00, 465 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 (736 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:42 2012 Optimize a model with 2404 rows, 1996 columns and 8176 nonzeros Presolve removed 14 rows and 98 columns Presolve time: 0.01s Presolved: 2390 rows, 1898 columns, 8078 nonzeros Variable types: 0 continuous, 1898 integer (1898 binary) Root relaxation: objective 0.000000e+00, 424 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 (424 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 16:44:42 2012 Optimize a model with 1168 rows, 1032 columns and 3504 nonzeros Presolve removed 14 rows and 42 columns Presolve time: 0.00s Presolved: 1154 rows, 990 columns, 3462 nonzeros Variable types: 0 continuous, 990 integer (990 binary) Root relaxation: objective 0.000000e+00, 450 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 (664 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 16:44:43 2012 Optimize a model with 550 rows, 550 columns and 1168 nonzeros Presolve removed 550 rows and 550 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 16:44:43 2012 Optimize a model with 859 rows, 791 columns and 2336 nonzeros Presolve removed 241 rows and 255 columns Presolve time: 0.00s Presolved: 618 rows, 536 columns, 1854 nonzeros Variable types: 0 continuous, 536 integer (536 binary) Root relaxation: objective 0.000000e+00, 264 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 0 227 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (857 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