current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:00 2012 Optimize a model with 22800 rows, 20226 columns and 87800 nonzeros Presolve removed 20 rows and 2000 columns Presolve time: 0.13s Presolved: 22780 rows, 18226 columns, 85800 nonzeros Variable types: 0 continuous, 18226 integer (18226 binary) Root relaxation: objective 0.000000e+00, 361 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 (361 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:01 2012 Optimize a model with 11500 rows, 10226 columns and 43900 nonzeros Presolve removed 20 rows and 1000 columns Presolve time: 0.10s Presolved: 11480 rows, 9226 columns, 42900 nonzeros Variable types: 0 continuous, 9226 integer (9226 binary) Root relaxation: objective 0.000000e+00, 359 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 (359 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:01 2012 Optimize a model with 5850 rows, 5226 columns and 21950 nonzeros Presolve removed 20 rows and 500 columns Presolve time: 0.03s Presolved: 5830 rows, 4726 columns, 21450 nonzeros Variable types: 0 continuous, 4726 integer (4726 binary) Root relaxation: objective 0.000000e+00, 367 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 (367 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:01 2012 Optimize a model with 2912 rows, 2626 columns and 10536 nonzeros Presolve removed 20 rows and 240 columns Presolve time: 0.01s Presolved: 2892 rows, 2386 columns, 10296 nonzeros Variable types: 0 continuous, 2386 integer (2386 binary) Root relaxation: objective 0.000000e+00, 356 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 (356 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:01 2012 Optimize a model with 1556 rows, 1426 columns and 5268 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.01s Presolved: 1536 rows, 1306 columns, 5148 nonzeros Variable types: 0 continuous, 1306 integer (1306 binary) Root relaxation: objective 0.000000e+00, 339 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 (480 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 16:30:01 2012 Optimize a model with 878 rows, 826 columns and 2634 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 858 rows, 766 columns, 2574 nonzeros Variable types: 0 continuous, 766 integer (766 binary) Root relaxation: objective 0.000000e+00, 321 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 (430 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 16:30:01 2012 Optimize a model with 426 rows, 426 columns and 878 nonzeros Presolve removed 426 rows and 426 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 16:30:01 2012 Optimize a model with 652 rows, 626 columns and 1756 nonzeros Presolve removed 204 rows and 226 columns Presolve time: 0.00s Presolved: 448 rows, 400 columns, 1344 nonzeros Variable types: 0 continuous, 400 integer (400 binary) Root relaxation: objective 0.000000e+00, 203 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 0 173 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (653 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