current bounds on the number of colors: 0 -- 201 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:14 2012 Optimize a model with 22901 rows, 20327 columns and 88200 nonzeros Presolve removed 25 rows and 2500 columns Presolve time: 0.13s Presolved: 22876 rows, 17827 columns, 85700 nonzeros Variable types: 0 continuous, 17827 integer (17827 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 simplex iterations) in 0.15 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 16:30:14 2012 Optimize a model with 11551 rows, 10277 columns and 44100 nonzeros Presolve removed 25 rows and 1250 columns Presolve time: 0.10s Presolved: 11526 rows, 9027 columns, 42850 nonzeros Variable types: 0 continuous, 9027 integer (9027 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 16:30:14 2012 Optimize a model with 5876 rows, 5252 columns and 22050 nonzeros Presolve removed 25 rows and 625 columns Presolve time: 0.03s Presolved: 5851 rows, 4627 columns, 21425 nonzeros Variable types: 0 continuous, 4627 integer (4627 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 (321 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 16:30:15 2012 Optimize a model with 2925 rows, 2639 columns and 10584 nonzeros Presolve removed 25 rows and 300 columns Presolve time: 0.01s Presolved: 2900 rows, 2339 columns, 10284 nonzeros Variable types: 0 continuous, 2339 integer (2339 binary) Root relaxation: objective 0.000000e+00, 324 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 (324 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 16:30:15 2012 Optimize a model with 1563 rows, 1433 columns and 5292 nonzeros Presolve removed 25 rows and 150 columns Presolve time: 0.01s Presolved: 1538 rows, 1283 columns, 5142 nonzeros Variable types: 0 continuous, 1283 integer (1283 binary) Root relaxation: objective 0.000000e+00, 325 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 (325 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 16:30:15 2012 Optimize a model with 882 rows, 830 columns and 2646 nonzeros Presolve removed 25 rows and 75 columns Presolve time: 0.00s Presolved: 857 rows, 755 columns, 2571 nonzeros Variable types: 0 continuous, 755 integer (755 binary) Root relaxation: objective 0.000000e+00, 348 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 (348 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 16:30:15 2012 Optimize a model with 428 rows, 428 columns and 882 nonzeros Presolve removed 428 rows and 428 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 16:30:15 2012 Optimize a model with 655 rows, 629 columns and 1764 nonzeros Presolve removed 201 rows and 226 columns Presolve time: 0.00s Presolved: 454 rows, 403 columns, 1362 nonzeros Variable types: 0 continuous, 403 integer (403 binary) Root relaxation: objective 0.000000e+00, 198 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 0 176 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (632 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