current bounds on the number of colors: 0 -- 143 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 7527 rows, 10257 columns and 32305 nonzeros Presolve removed 36 rows and 2556 columns Presolve time: 0.10s Presolved: 7491 rows, 7701 columns, 29749 nonzeros Variable types: 0 continuous, 7701 integer (7701 binary) Root relaxation: objective 0.000000e+00, 185 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 (265 simplex iterations) in 0.11 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 -- 71 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 3783 rows, 5109 columns and 15925 nonzeros Presolve removed 36 rows and 1260 columns Presolve time: 0.03s Presolved: 3747 rows, 3849 columns, 14665 nonzeros Variable types: 0 continuous, 3849 integer (3849 binary) Root relaxation: objective 0.000000e+00, 185 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 (270 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 -- 35 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 1911 rows, 2535 columns and 7735 nonzeros Presolve removed 36 rows and 612 columns Presolve time: 0.01s Presolved: 1875 rows, 1923 columns, 7123 nonzeros Variable types: 0 continuous, 1923 integer (1923 binary) Root relaxation: objective 0.000000e+00, 184 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 (267 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 -- 17 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 975 rows, 1248 columns and 3640 nonzeros Presolve removed 36 rows and 288 columns Presolve time: 0.00s Presolved: 939 rows, 960 columns, 3352 nonzeros Variable types: 0 continuous, 960 integer (960 binary) Root relaxation: objective 0.000000e+00, 180 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 (180 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 559 rows, 676 columns and 1820 nonzeros Presolve removed 36 rows and 144 columns Presolve time: 0.00s Presolved: 523 rows, 532 columns, 1676 nonzeros Variable types: 0 continuous, 532 integer (532 binary) Root relaxation: objective 0.000000e+00, 156 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 (156 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 351 rows, 390 columns and 910 nonzeros Presolve removed 153 rows and 194 columns Presolve time: 0.00s Presolved: 198 rows, 196 columns, 594 nonzeros Variable types: 0 continuous, 196 integer (196 binary) Root relaxation: objective 0.000000e+00, 106 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 81 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (308 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 - current bounds on the number of colors: 2 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:01 2012 Optimize a model with 455 rows, 533 columns and 1365 nonzeros Presolve removed 36 rows and 108 columns Presolve time: 0.00s Presolved: 419 rows, 425 columns, 1257 nonzeros Variable types: 0 continuous, 425 integer (425 binary) Root relaxation: objective 0.000000e+00, 158 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 (200 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% optimal solution found: number of colors: 3