current bounds on the number of colors: 0 -- 247 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:12 2012 Optimize a model with 38746 rows, 30694 columns and 145878 nonzeros Presolve removed 19 rows and 2337 columns Presolve time: 0.20s Presolved: 38727 rows, 28357 columns, 143541 nonzeros Variable types: 0 continuous, 28357 integer (28357 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 0.23 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 -- 123 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:13 2012 Optimize a model with 19340 rows, 15380 columns and 72346 nonzeros Presolve removed 19 rows and 1159 columns Presolve time: 0.13s Presolved: 19321 rows, 14221 columns, 71187 nonzeros Variable types: 0 continuous, 14221 integer (14221 binary) Root relaxation: objective 0.000000e+00, 447 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 (447 simplex iterations) in 0.15 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 -- 61 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:47:14 2012 Optimize a model with 9637 rows, 7723 columns and 35580 nonzeros Presolve removed 19 rows and 570 columns Presolve time: 0.06s Presolved: 9618 rows, 7153 columns, 35010 nonzeros Variable types: 0 continuous, 7153 integer (7153 binary) Root relaxation: objective 0.000000e+00, 450 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 (450 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 16:47:14 2012 Optimize a model with 4942 rows, 4018 columns and 17790 nonzeros Presolve removed 19 rows and 285 columns Presolve time: 0.02s Presolved: 4923 rows, 3733 columns, 17505 nonzeros Variable types: 0 continuous, 3733 integer (3733 binary) Root relaxation: objective 0.000000e+00, 480 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 (765 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 16:47:14 2012 Optimize a model with 2438 rows, 2042 columns and 8302 nonzeros Presolve removed 19 rows and 133 columns Presolve time: 0.01s Presolved: 2419 rows, 1909 columns, 8169 nonzeros Variable types: 0 continuous, 1909 integer (1909 binary) Root relaxation: objective 0.000000e+00, 431 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 (431 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 16:47:14 2012 Optimize a model with 1186 rows, 1054 columns and 3558 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 1167 rows, 997 columns, 3501 nonzeros Variable types: 0 continuous, 997 integer (997 binary) Root relaxation: objective 0.000000e+00, 466 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 (859 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 16:47:14 2012 Optimize a model with 560 rows, 560 columns and 1186 nonzeros Presolve removed 560 rows and 560 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 16:47:14 2012 Optimize a model with 873 rows, 807 columns and 2372 nonzeros Presolve removed 251 rows and 272 columns Presolve time: 0.00s Presolved: 622 rows, 535 columns, 1866 nonzeros Variable types: 0 continuous, 535 integer (535 binary) Root relaxation: objective 0.000000e+00, 259 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 0 224 - 0.00000 - - 0s Explored 0 nodes (846 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