current bounds on the number of colors: 0 -- 192 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:01 2012 Optimize a model with 19584 rows, 18634 columns and 76608 nonzeros Presolve removed 20 rows and 1920 columns Presolve time: 0.12s Presolved: 19564 rows, 16714 columns, 74688 nonzeros Variable types: 0 continuous, 16714 integer (16714 binary) Root relaxation: objective 0.000000e+00, 318 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 (318 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 -- 96 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:01 2012 Optimize a model with 9888 rows, 9418 columns and 38304 nonzeros Presolve removed 20 rows and 960 columns Presolve time: 0.09s Presolved: 9868 rows, 8458 columns, 37344 nonzeros Variable types: 0 continuous, 8458 integer (8458 binary) Root relaxation: objective 0.000000e+00, 313 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 (313 simplex iterations) in 0.10 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 -- 48 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:02 2012 Optimize a model with 5040 rows, 4810 columns and 19152 nonzeros Presolve removed 20 rows and 480 columns Presolve time: 0.03s Presolved: 5020 rows, 4330 columns, 18672 nonzeros Variable types: 0 continuous, 4330 integer (4330 binary) Root relaxation: objective 0.000000e+00, 317 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 (317 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:02 2012 Optimize a model with 2616 rows, 2506 columns and 9576 nonzeros Presolve removed 20 rows and 240 columns Presolve time: 0.01s Presolved: 2596 rows, 2266 columns, 9336 nonzeros Variable types: 0 continuous, 2266 integer (2266 binary) Root relaxation: objective 0.000000e+00, 322 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 (322 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:02 2012 Optimize a model with 1404 rows, 1354 columns and 4788 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.00s Presolved: 1384 rows, 1234 columns, 4668 nonzeros Variable types: 0 continuous, 1234 integer (1234 binary) Root relaxation: objective 0.000000e+00, 308 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 (308 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 16:28:02 2012 Optimize a model with 798 rows, 778 columns and 2394 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 778 rows, 718 columns, 2334 nonzeros Variable types: 0 continuous, 718 integer (718 binary) Root relaxation: objective 0.000000e+00, 310 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 (310 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 16:28:02 2012 Optimize a model with 394 rows, 394 columns and 798 nonzeros Presolve removed 394 rows and 394 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 16:28:02 2012 Optimize a model with 596 rows, 586 columns and 1596 nonzeros Presolve removed 196 rows and 218 columns Presolve time: 0.00s Presolved: 400 rows, 368 columns, 1200 nonzeros Variable types: 0 continuous, 368 integer (368 binary) Root relaxation: objective 0.000000e+00, 183 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 0 151 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (587 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