current bounds on the number of colors: 0 -- 63 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:22 2012 Optimize a model with 3256 rows, 2056 columns and 11532 nonzeros Presolve removed 2 rows and 62 columns Presolve time: 0.02s Presolved: 3254 rows, 1994 columns, 11470 nonzeros Variable types: 0 continuous, 1994 integer (1994 binary) Root relaxation: objective 0.000000e+00, 115 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 (115 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 -- 31 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:22 2012 Optimize a model with 1608 rows, 1048 columns and 5580 nonzeros Presolve removed 2 rows and 30 columns Presolve time: 0.01s Presolved: 1606 rows, 1018 columns, 5550 nonzeros Variable types: 0 continuous, 1018 integer (1018 binary) Root relaxation: objective 0.000000e+00, 131 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 (204 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 -- 15 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:22 2012 Optimize a model with 784 rows, 544 columns and 2604 nonzeros Presolve removed 2 rows and 14 columns Presolve time: 0.00s Presolved: 782 rows, 530 columns, 2590 nonzeros Variable types: 0 continuous, 530 integer (530 binary) Root relaxation: objective 0.000000e+00, 138 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 (138 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 -- 7 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:22 2012 Optimize a model with 372 rows, 292 columns and 1116 nonzeros Presolve removed 2 rows and 6 columns Presolve time: 0.00s Presolved: 370 rows, 286 columns, 1110 nonzeros Variable types: 0 continuous, 286 integer (286 binary) Root relaxation: objective 0.000000e+00, 146 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 (297 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 -- 3 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:22 2012 Optimize a model with 166 rows, 166 columns and 372 nonzeros Presolve removed 166 rows and 166 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 Fri Dec 14 18:20:22 2012 Optimize a model with 269 rows, 229 columns and 744 nonzeros Presolve removed 63 rows and 65 columns Presolve time: 0.00s Presolved: 206 rows, 164 columns, 618 nonzeros Variable types: 0 continuous, 164 integer (164 binary) Root relaxation: objective 0.000000e+00, 67 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 61 - 0.00000 - - 0s Explored 0 nodes (235 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 - optimal solution found: number of colors: 3