current bounds on the number of colors: 0 -- 133 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 5281 rows, 8856 columns and 24222 nonzeros Presolve removed 44 rows and 2904 columns Presolve time: 0.07s Presolved: 5237 rows, 5952 columns, 21318 nonzeros Variable types: 0 continuous, 5952 integer (5952 binary) Root relaxation: objective 0.000000e+00, 147 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 (147 simplex iterations) in 0.08 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 -- 66 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 2707 rows, 4467 columns and 12111 nonzeros Presolve removed 44 rows and 1452 columns Presolve time: 0.02s Presolved: 2663 rows, 3015 columns, 10659 nonzeros Variable types: 0 continuous, 3015 integer (3015 binary) Root relaxation: objective 0.000000e+00, 147 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 (147 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 -- 33 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 1381 rows, 2206 columns and 5872 nonzeros Presolve removed 44 rows and 704 columns Presolve time: 0.01s Presolved: 1337 rows, 1502 columns, 5168 nonzeros Variable types: 0 continuous, 1502 integer (1502 binary) Root relaxation: objective 0.000000e+00, 146 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 (146 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 -- 16 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 757 rows, 1142 columns and 2936 nonzeros Presolve removed 44 rows and 352 columns Presolve time: 0.00s Presolved: 713 rows, 790 columns, 2584 nonzeros Variable types: 0 continuous, 790 integer (790 binary) Root relaxation: objective 0.000000e+00, 142 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 (142 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 445 rows, 610 columns and 1468 nonzeros Presolve removed 44 rows and 176 columns Presolve time: 0.00s Presolved: 401 rows, 434 columns, 1292 nonzeros Variable types: 0 continuous, 434 integer (434 binary) Root relaxation: objective 0.000000e+00, 134 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 (134 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 289 rows, 344 columns and 734 nonzeros Presolve removed 141 rows and 189 columns Presolve time: 0.00s Presolved: 148 rows, 155 columns, 444 nonzeros Variable types: 0 continuous, 155 integer (155 binary) Root relaxation: objective 0.000000e+00, 72 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 (72 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 -- 2 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:48 2012 Optimize a model with 211 rows, 211 columns and 367 nonzeros Presolve removed 211 rows and 211 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 - optimal solution found: number of colors: 2