current bounds on the number of colors: 0 -- 164 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:06 2012 Optimize a model with 9840 rows, 13566 columns and 42476 nonzeros Presolve removed 33 rows and 2706 columns Presolve time: 0.12s Presolved: 9807 rows, 10860 columns, 39770 nonzeros Variable types: 0 continuous, 10860 integer (10860 binary) Root relaxation: objective 0.000000e+00, 222 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 (222 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 -- 82 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:07 2012 Optimize a model with 5002 rows, 6842 columns and 21238 nonzeros Presolve removed 33 rows and 1353 columns Presolve time: 0.05s Presolved: 4969 rows, 5489 columns, 19885 nonzeros Variable types: 0 continuous, 5489 integer (5489 binary) Root relaxation: objective 0.000000e+00, 222 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 (222 simplex iterations) in 0.05 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 -- 41 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:07 2012 Optimize a model with 2524 rows, 3398 columns and 10360 nonzeros Presolve removed 33 rows and 660 columns Presolve time: 0.02s Presolved: 2491 rows, 2738 columns, 9700 nonzeros Variable types: 0 continuous, 2738 integer (2738 binary) Root relaxation: objective 0.000000e+00, 222 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 (222 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 16:22:07 2012 Optimize a model with 1344 rows, 1758 columns and 5180 nonzeros Presolve removed 33 rows and 330 columns Presolve time: 0.01s Presolved: 1311 rows, 1428 columns, 4850 nonzeros Variable types: 0 continuous, 1428 integer (1428 binary) Root relaxation: objective 0.000000e+00, 216 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 (216 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 16:22:07 2012 Optimize a model with 754 rows, 938 columns and 2590 nonzeros Presolve removed 33 rows and 165 columns Presolve time: 0.00s Presolved: 721 rows, 773 columns, 2425 nonzeros Variable types: 0 continuous, 773 integer (773 binary) Root relaxation: objective 0.000000e+00, 202 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 (202 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 16:22:07 2012 Optimize a model with 400 rows, 446 columns and 1036 nonzeros Presolve removed 178 rows and 218 columns Presolve time: 0.00s Presolved: 222 rows, 228 columns, 666 nonzeros Variable types: 0 continuous, 228 integer (228 binary) Root relaxation: objective 0.000000e+00, 114 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 (114 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 16:22:07 2012 Optimize a model with 282 rows, 282 columns and 518 nonzeros Presolve removed 282 rows and 282 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