current bounds on the number of colors: 0 -- 104 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:25 2012 Optimize a model with 3484 rows, 5473 columns and 15548 nonzeros Presolve removed 36 rows and 1872 columns Presolve time: 0.04s Presolved: 3448 rows, 3601 columns, 13676 nonzeros Variable types: 0 continuous, 3601 integer (3601 binary) Root relaxation: objective 0.000000e+00, 117 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 (117 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 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:25 2012 Optimize a model with 1794 rows, 2769 columns and 7774 nonzeros Presolve removed 36 rows and 936 columns Presolve time: 0.01s Presolved: 1758 rows, 1833 columns, 6838 nonzeros Variable types: 0 continuous, 1833 integer (1833 binary) Root relaxation: objective 0.000000e+00, 117 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 (117 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:25 2012 Optimize a model with 949 rows, 1417 columns and 3887 nonzeros Presolve removed 36 rows and 468 columns Presolve time: 0.00s Presolved: 913 rows, 949 columns, 3419 nonzeros Variable types: 0 continuous, 949 integer (949 binary) Root relaxation: objective 0.000000e+00, 120 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 (172 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:25 2012 Optimize a model with 494 rows, 689 columns and 1794 nonzeros Presolve removed 36 rows and 216 columns Presolve time: 0.00s Presolved: 458 rows, 473 columns, 1578 nonzeros Variable types: 0 continuous, 473 integer (473 binary) Root relaxation: objective 0.000000e+00, 116 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 (161 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:25 2012 Optimize a model with 299 rows, 377 columns and 897 nonzeros Presolve removed 36 rows and 108 columns Presolve time: 0.00s Presolved: 263 rows, 269 columns, 789 nonzeros Variable types: 0 continuous, 269 integer (269 binary) Root relaxation: objective 0.000000e+00, 100 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 (133 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 16:15:25 2012 Optimize a model with 169 rows, 169 columns and 299 nonzeros Presolve removed 169 rows and 169 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 16:15:25 2012 Optimize a model with 234 rows, 273 columns and 598 nonzeros Presolve removed 112 rows and 152 columns Presolve time: 0.00s Presolved: 122 rows, 121 columns, 366 nonzeros Variable types: 0 continuous, 121 integer (121 binary) Root relaxation: objective 0.000000e+00, 66 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 57 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (230 simplex iterations) in 0.00 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