current bounds on the number of colors: 0 -- 212 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:46 2012 Optimize a model with 26712 rows, 22722 columns and 101972 nonzeros Presolve removed 19 rows and 2014 columns Presolve time: 0.13s Presolved: 26693 rows, 20708 columns, 99958 nonzeros Variable types: 0 continuous, 20708 integer (20708 binary) Root relaxation: objective 0.000000e+00, 362 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 (362 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 -- 106 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:47 2012 Optimize a model with 13462 rows, 11486 columns and 50986 nonzeros Presolve removed 19 rows and 1007 columns Presolve time: 0.12s Presolved: 13443 rows, 10479 columns, 49979 nonzeros Variable types: 0 continuous, 10479 integer (10479 binary) Root relaxation: objective 0.000000e+00, 364 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 (364 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:47 2012 Optimize a model with 6712 rows, 5762 columns and 25012 nonzeros Presolve removed 19 rows and 494 columns Presolve time: 0.04s Presolved: 6693 rows, 5268 columns, 24518 nonzeros Variable types: 0 continuous, 5268 integer (5268 binary) Root relaxation: objective 0.000000e+00, 360 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 (360 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:47 2012 Optimize a model with 3462 rows, 3006 columns and 12506 nonzeros Presolve removed 19 rows and 247 columns Presolve time: 0.02s Presolved: 3443 rows, 2759 columns, 12259 nonzeros Variable types: 0 continuous, 2759 integer (2759 binary) Root relaxation: objective 0.000000e+00, 379 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 (379 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:47 2012 Optimize a model with 1712 rows, 1522 columns and 5772 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1693 rows, 1408 columns, 5658 nonzeros Variable types: 0 continuous, 1408 integer (1408 binary) Root relaxation: objective 0.000000e+00, 359 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 (520 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 16:33:47 2012 Optimize a model with 962 rows, 886 columns and 2886 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 943 rows, 829 columns, 2829 nonzeros Variable types: 0 continuous, 829 integer (829 binary) Root relaxation: objective 0.000000e+00, 355 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 (355 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 16:33:48 2012 Optimize a model with 462 rows, 462 columns and 962 nonzeros Presolve removed 462 rows and 462 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 16:33:48 2012 Optimize a model with 712 rows, 674 columns and 1924 nonzeros Presolve removed 216 rows and 237 columns Presolve time: 0.00s Presolved: 496 rows, 437 columns, 1488 nonzeros Variable types: 0 continuous, 437 integer (437 binary) Root relaxation: objective 0.000000e+00, 217 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 0 189 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (742 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