current bounds on the number of colors: 0 -- 135 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:02 2012 Optimize a model with 7371 rows, 9153 columns and 30753 nonzeros Presolve removed 26 rows and 1742 columns Presolve time: 0.09s Presolved: 7345 rows, 7411 columns, 29011 nonzeros Variable types: 0 continuous, 7411 integer (7411 binary) Root relaxation: objective 0.000000e+00, 188 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 (188 simplex iterations) in 0.10 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 -- 67 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:02 2012 Optimize a model with 3699 rows, 4563 columns and 15147 nonzeros Presolve removed 26 rows and 858 columns Presolve time: 0.03s Presolved: 3673 rows, 3705 columns, 14289 nonzeros Variable types: 0 continuous, 3705 integer (3705 binary) Root relaxation: objective 0.000000e+00, 190 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 (190 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 16:18:02 2012 Optimize a model with 1863 rows, 2268 columns and 7344 nonzeros Presolve removed 26 rows and 416 columns Presolve time: 0.01s Presolved: 1837 rows, 1852 columns, 6928 nonzeros Variable types: 0 continuous, 1852 integer (1852 binary) Root relaxation: objective 0.000000e+00, 188 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 (188 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 16:18:02 2012 Optimize a model with 999 rows, 1188 columns and 3672 nonzeros Presolve removed 26 rows and 208 columns Presolve time: 0.00s Presolved: 973 rows, 980 columns, 3464 nonzeros Variable types: 0 continuous, 980 integer (980 binary) Root relaxation: objective 0.000000e+00, 185 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 (185 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:02 2012 Optimize a model with 567 rows, 648 columns and 1836 nonzeros Presolve removed 26 rows and 104 columns Presolve time: 0.00s Presolved: 541 rows, 544 columns, 1732 nonzeros Variable types: 0 continuous, 544 integer (544 binary) Root relaxation: objective 0.000000e+00, 173 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 (173 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 16:18:02 2012 Optimize a model with 351 rows, 378 columns and 918 nonzeros Presolve removed 149 rows and 182 columns Presolve time: 0.00s Presolved: 202 rows, 196 columns, 606 nonzeros Variable types: 0 continuous, 196 integer (196 binary) Root relaxation: objective 0.000000e+00, 99 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 83 - 0.00000 - - 0s Explored 0 nodes (344 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:02 2012 Optimize a model with 459 rows, 513 columns and 1377 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 433 rows, 435 columns, 1299 nonzeros Variable types: 0 continuous, 435 integer (435 binary) Root relaxation: objective 0.000000e+00, 171 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 (171 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