current bounds on the number of colors: 0 -- 204 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:19 2012 Optimize a model with 24480 rows, 21046 columns and 93636 nonzeros Presolve removed 17 rows and 1734 columns Presolve time: 0.14s Presolved: 24463 rows, 19312 columns, 91902 nonzeros Variable types: 0 continuous, 19312 integer (19312 binary) Root relaxation: objective 0.000000e+00, 340 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 (340 simplex iterations) in 0.16 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 -- 102 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:19 2012 Optimize a model with 12342 rows, 10642 columns and 46818 nonzeros Presolve removed 17 rows and 867 columns Presolve time: 0.11s Presolved: 12325 rows, 9775 columns, 45951 nonzeros Variable types: 0 continuous, 9775 integer (9775 binary) Root relaxation: objective 0.000000e+00, 340 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 (340 simplex iterations) in 0.12 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 -- 51 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:20 2012 Optimize a model with 6154 rows, 5338 columns and 22950 nonzeros Presolve removed 17 rows and 425 columns Presolve time: 0.04s Presolved: 6137 rows, 4913 columns, 22525 nonzeros Variable types: 0 continuous, 4913 integer (4913 binary) Root relaxation: objective 0.000000e+00, 344 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 (344 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:20 2012 Optimize a model with 3060 rows, 2686 columns and 11016 nonzeros Presolve removed 17 rows and 204 columns Presolve time: 0.01s Presolved: 3043 rows, 2482 columns, 10812 nonzeros Variable types: 0 continuous, 2482 integer (2482 binary) Root relaxation: objective 0.000000e+00, 337 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 (506 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:20 2012 Optimize a model with 1632 rows, 1462 columns and 5508 nonzeros Presolve removed 17 rows and 102 columns Presolve time: 0.01s Presolved: 1615 rows, 1360 columns, 5406 nonzeros Variable types: 0 continuous, 1360 integer (1360 binary) Root relaxation: objective 0.000000e+00, 366 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 (525 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 16:31:20 2012 Optimize a model with 918 rows, 850 columns and 2754 nonzeros Presolve removed 17 rows and 51 columns Presolve time: 0.00s Presolved: 901 rows, 799 columns, 2703 nonzeros Variable types: 0 continuous, 799 integer (799 binary) Root relaxation: objective 0.000000e+00, 351 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 (351 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 16:31:20 2012 Optimize a model with 442 rows, 442 columns and 918 nonzeros Presolve removed 442 rows and 442 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 16:31:20 2012 Optimize a model with 680 rows, 646 columns and 1836 nonzeros Presolve removed 206 rows and 224 columns Presolve time: 0.00s Presolved: 474 rows, 422 columns, 1422 nonzeros Variable types: 0 continuous, 422 integer (422 binary) Root relaxation: objective 0.000000e+00, 221 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 0 182 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (669 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