current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:07 2012 Optimize a model with 20300 rows, 20201 columns and 80300 nonzeros Presolve removed 28 rows and 2800 columns Presolve time: 0.13s Presolved: 20272 rows, 17401 columns, 77500 nonzeros Variable types: 0 continuous, 17401 integer (17401 binary) Root relaxation: objective 0.000000e+00, 303 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 (303 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 16:30:07 2012 Optimize a model with 10250 rows, 10201 columns and 40150 nonzeros Presolve removed 28 rows and 1400 columns Presolve time: 0.11s Presolved: 10222 rows, 8801 columns, 38750 nonzeros Variable types: 0 continuous, 8801 integer (8801 binary) Root relaxation: objective 0.000000e+00, 303 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 (303 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:08 2012 Optimize a model with 5225 rows, 5201 columns and 20075 nonzeros Presolve removed 28 rows and 700 columns Presolve time: 0.03s Presolved: 5197 rows, 4501 columns, 19375 nonzeros Variable types: 0 continuous, 4501 integer (4501 binary) Root relaxation: objective 0.000000e+00, 304 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 (304 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 16:30:08 2012 Optimize a model with 2612 rows, 2601 columns and 9636 nonzeros Presolve removed 28 rows and 336 columns Presolve time: 0.01s Presolved: 2584 rows, 2265 columns, 9300 nonzeros Variable types: 0 continuous, 2265 integer (2265 binary) Root relaxation: objective 0.000000e+00, 313 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 (313 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 16:30:08 2012 Optimize a model with 1406 rows, 1401 columns and 4818 nonzeros Presolve removed 28 rows and 168 columns Presolve time: 0.00s Presolved: 1378 rows, 1233 columns, 4650 nonzeros Variable types: 0 continuous, 1233 integer (1233 binary) Root relaxation: objective 0.000000e+00, 301 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 (301 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 16:30:08 2012 Optimize a model with 803 rows, 801 columns and 2409 nonzeros Presolve removed 28 rows and 84 columns Presolve time: 0.00s Presolved: 775 rows, 717 columns, 2325 nonzeros Variable types: 0 continuous, 717 integer (717 binary) Root relaxation: objective 0.000000e+00, 283 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 (283 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 16:30:08 2012 Optimize a model with 401 rows, 401 columns and 803 nonzeros Presolve removed 401 rows and 401 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 16:30:08 2012 Optimize a model with 602 rows, 601 columns and 1606 nonzeros Presolve removed 212 rows and 246 columns Presolve time: 0.00s Presolved: 390 rows, 355 columns, 1170 nonzeros Variable types: 0 continuous, 355 integer (355 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 0.00000 0 155 - 0.00000 - - 0s Explored 0 nodes (557 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