current bounds on the number of colors: 0 -- 161 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:32 2012 Optimize a model with 12001 rows, 13028 columns and 48400 nonzeros Presolve removed 26 rows and 2080 columns Presolve time: 0.12s Presolved: 11975 rows, 10948 columns, 46320 nonzeros Variable types: 0 continuous, 10948 integer (10948 binary) Root relaxation: objective 0.000000e+00, 246 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 (246 simplex iterations) in 0.13 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 -- 80 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:32 2012 Optimize a model with 6081 rows, 6588 columns and 24200 nonzeros Presolve removed 26 rows and 1040 columns Presolve time: 0.05s Presolved: 6055 rows, 5548 columns, 23160 nonzeros Variable types: 0 continuous, 5548 integer (5548 binary) Root relaxation: objective 0.000000e+00, 245 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 (245 simplex iterations) in 0.06 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 -- 40 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:32 2012 Optimize a model with 3121 rows, 3368 columns and 12100 nonzeros Presolve removed 26 rows and 520 columns Presolve time: 0.02s Presolved: 3095 rows, 2848 columns, 11580 nonzeros Variable types: 0 continuous, 2848 integer (2848 binary) Root relaxation: objective 0.000000e+00, 246 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 (246 simplex iterations) in 0.02 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 -- 20 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:32 2012 Optimize a model with 1641 rows, 1758 columns and 6050 nonzeros Presolve removed 26 rows and 260 columns Presolve time: 0.01s Presolved: 1615 rows, 1498 columns, 5790 nonzeros Variable types: 0 continuous, 1498 integer (1498 binary) Root relaxation: objective 0.000000e+00, 237 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 (237 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 -- 10 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:33 2012 Optimize a model with 901 rows, 953 columns and 3025 nonzeros Presolve removed 26 rows and 130 columns Presolve time: 0.00s Presolved: 875 rows, 823 columns, 2895 nonzeros Variable types: 0 continuous, 823 integer (823 binary) Root relaxation: objective 0.000000e+00, 223 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 (223 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 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:33 2012 Optimize a model with 457 rows, 470 columns and 1210 nonzeros Presolve removed 169 rows and 199 columns Presolve time: 0.00s Presolved: 288 rows, 271 columns, 864 nonzeros Variable types: 0 continuous, 271 integer (271 binary) Root relaxation: objective 0.000000e+00, 140 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 0 124 - 0.00000 - - 0s Explored 0 nodes (446 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 - current bounds on the number of colors: 2 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:33 2012 Optimize a model with 605 rows, 631 columns and 1815 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 579 rows, 553 columns, 1737 nonzeros Variable types: 0 continuous, 553 integer (553 binary) Root relaxation: objective 0.000000e+00, 209 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 (209 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% optimal solution found: number of colors: 3