current bounds on the number of colors: 0 -- 242 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:02 2012 Optimize a model with 34485 rows, 29565 columns and 132011 nonzeros Presolve removed 20 rows and 2420 columns Presolve time: 0.15s Presolved: 34465 rows, 27145 columns, 129591 nonzeros Variable types: 0 continuous, 27145 integer (27145 binary) Root relaxation: objective 0.000000e+00, 419 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 (419 simplex iterations) in 0.18 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 -- 121 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:03 2012 Optimize a model with 17222 rows, 14803 columns and 65460 nonzeros Presolve removed 20 rows and 1200 columns Presolve time: 0.12s Presolved: 17202 rows, 13603 columns, 64260 nonzeros Variable types: 0 continuous, 13603 integer (13603 binary) Root relaxation: objective 0.000000e+00, 419 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 (419 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:03 2012 Optimize a model with 8732 rows, 7543 columns and 32730 nonzeros Presolve removed 20 rows and 600 columns Presolve time: 0.06s Presolved: 8712 rows, 6943 columns, 32130 nonzeros Variable types: 0 continuous, 6943 integer (6943 binary) Root relaxation: objective 0.000000e+00, 415 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 (415 simplex iterations) in 0.07 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:03 2012 Optimize a model with 4487 rows, 3913 columns and 16365 nonzeros Presolve removed 20 rows and 300 columns Presolve time: 0.02s Presolved: 4467 rows, 3613 columns, 16065 nonzeros Variable types: 0 continuous, 3613 integer (3613 binary) Root relaxation: objective 0.000000e+00, 415 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 (415 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:03 2012 Optimize a model with 2223 rows, 1977 columns and 7637 nonzeros Presolve removed 20 rows and 140 columns Presolve time: 0.01s Presolved: 2203 rows, 1837 columns, 7497 nonzeros Variable types: 0 continuous, 1837 integer (1837 binary) Root relaxation: objective 0.000000e+00, 405 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 (405 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:03 2012 Optimize a model with 1091 rows, 1009 columns and 3273 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 1071 rows, 949 columns, 3213 nonzeros Variable types: 0 continuous, 949 integer (949 binary) Root relaxation: objective 0.000000e+00, 443 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 (618 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 16:45:03 2012 Optimize a model with 525 rows, 525 columns and 1091 nonzeros Presolve removed 525 rows and 525 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 16:45:04 2012 Optimize a model with 808 rows, 767 columns and 2182 nonzeros Presolve removed 244 rows and 265 columns Presolve time: 0.00s Presolved: 564 rows, 502 columns, 1692 nonzeros Variable types: 0 continuous, 502 integer (502 binary) Root relaxation: objective 0.000000e+00, 264 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 0 220 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (804 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