current bounds on the number of colors: 0 -- 211 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:18 2012 Optimize a model with 24256 rows, 22384 columns and 94290 nonzeros Presolve removed 20 rows and 2100 columns Presolve time: 0.14s Presolved: 24236 rows, 20284 columns, 92190 nonzeros Variable types: 0 continuous, 20284 integer (20284 binary) Root relaxation: objective 0.000000e+00, 347 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 (516 simplex iterations) in 0.19 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 -- 105 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:18 2012 Optimize a model with 12119 rows, 11201 columns and 46696 nonzeros Presolve removed 20 rows and 1040 columns Presolve time: 0.11s Presolved: 12099 rows, 10161 columns, 45656 nonzeros Variable types: 0 continuous, 10161 integer (10161 binary) Root relaxation: objective 0.000000e+00, 347 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 (514 simplex iterations) in 0.14 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 16:33:19 2012 Optimize a model with 6165 rows, 5715 columns and 23348 nonzeros Presolve removed 20 rows and 520 columns Presolve time: 0.04s Presolved: 6145 rows, 5195 columns, 22828 nonzeros Variable types: 0 continuous, 5195 integer (5195 binary) Root relaxation: objective 0.000000e+00, 346 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 (346 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:19 2012 Optimize a model with 3188 rows, 2972 columns and 11674 nonzeros Presolve removed 20 rows and 260 columns Presolve time: 0.01s Presolved: 3168 rows, 2712 columns, 11414 nonzeros Variable types: 0 continuous, 2712 integer (2712 binary) Root relaxation: objective 0.000000e+00, 361 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 (361 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:19 2012 Optimize a model with 1585 rows, 1495 columns and 5388 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.01s Presolved: 1565 rows, 1375 columns, 5268 nonzeros Variable types: 0 continuous, 1375 integer (1375 binary) Root relaxation: objective 0.000000e+00, 353 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 (497 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:19 2012 Optimize a model with 898 rows, 862 columns and 2694 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 878 rows, 802 columns, 2634 nonzeros Variable types: 0 continuous, 802 integer (802 binary) Root relaxation: objective 0.000000e+00, 345 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 (472 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 16:33:19 2012 Optimize a model with 440 rows, 440 columns and 898 nonzeros Presolve removed 440 rows and 440 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 16:33:19 2012 Optimize a model with 669 rows, 651 columns and 1796 nonzeros Presolve removed 215 rows and 237 columns Presolve time: 0.00s Presolved: 454 rows, 414 columns, 1362 nonzeros Variable types: 0 continuous, 414 integer (414 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 0.00000 0 181 - 0.00000 - - 0s Explored 0 nodes (651 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