current bounds on the number of colors: 0 -- 209 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:42 2012 Optimize a model with 22049 rows, 21946 columns and 87256 nonzeros Presolve removed 24 rows and 2496 columns Presolve time: 0.14s Presolved: 22025 rows, 19450 columns, 84760 nonzeros Variable types: 0 continuous, 19450 integer (19450 binary) Root relaxation: objective 0.000000e+00, 337 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 (337 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 -- 104 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:42 2012 Optimize a model with 11129 rows, 11078 columns and 43628 nonzeros Presolve removed 24 rows and 1248 columns Presolve time: 0.11s Presolved: 11105 rows, 9830 columns, 42380 nonzeros Variable types: 0 continuous, 9830 integer (9830 binary) Root relaxation: objective 0.000000e+00, 338 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 (338 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 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:43 2012 Optimize a model with 5669 rows, 5644 columns and 21814 nonzeros Presolve removed 24 rows and 624 columns Presolve time: 0.04s Presolved: 5645 rows, 5020 columns, 21190 nonzeros Variable types: 0 continuous, 5020 integer (5020 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 (337 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:43 2012 Optimize a model with 2939 rows, 2927 columns and 10907 nonzeros Presolve removed 24 rows and 312 columns Presolve time: 0.01s Presolved: 2915 rows, 2615 columns, 10595 nonzeros Variable types: 0 continuous, 2615 integer (2615 binary) Root relaxation: objective 0.000000e+00, 346 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 (346 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 16:32:43 2012 Optimize a model with 1469 rows, 1464 columns and 5034 nonzeros Presolve removed 24 rows and 144 columns Presolve time: 0.01s Presolved: 1445 rows, 1320 columns, 4890 nonzeros Variable types: 0 continuous, 1320 integer (1320 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 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 16:32:43 2012 Optimize a model with 839 rows, 837 columns and 2517 nonzeros Presolve removed 24 rows and 72 columns Presolve time: 0.00s Presolved: 815 rows, 765 columns, 2445 nonzeros Variable types: 0 continuous, 765 integer (765 binary) Root relaxation: objective 0.000000e+00, 314 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 (314 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 Sat Dec 15 16:32:43 2012 Optimize a model with 419 rows, 419 columns and 839 nonzeros Presolve removed 419 rows and 419 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 16:32:43 2012 Optimize a model with 629 rows, 628 columns and 1678 nonzeros Presolve removed 219 rows and 248 columns Presolve time: 0.00s Presolved: 410 rows, 380 columns, 1230 nonzeros Variable types: 0 continuous, 380 integer (380 binary) Root relaxation: objective 0.000000e+00, 196 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 0 166 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (648 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