current bounds on the number of colors: 0 -- 196 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:54 2012 Optimize a model with 19894 rows, 19409 columns and 78302 nonzeros Presolve removed 24 rows and 2352 columns Presolve time: 0.13s Presolved: 19870 rows, 17057 columns, 75950 nonzeros Variable types: 0 continuous, 17057 integer (17057 binary) Root relaxation: objective 0.000000e+00, 321 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 (321 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 -- 98 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:54 2012 Optimize a model with 10045 rows, 9805 columns and 39151 nonzeros Presolve removed 24 rows and 1176 columns Presolve time: 0.09s Presolved: 10021 rows, 8629 columns, 37975 nonzeros Variable types: 0 continuous, 8629 integer (8629 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 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 -- 49 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:54 2012 Optimize a model with 5020 rows, 4905 columns and 19176 nonzeros Presolve removed 24 rows and 576 columns Presolve time: 0.03s Presolved: 4996 rows, 4329 columns, 18600 nonzeros Variable types: 0 continuous, 4329 integer (4329 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 simplex iterations) in 0.03 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 16:28:55 2012 Optimize a model with 2608 rows, 2553 columns and 9588 nonzeros Presolve removed 24 rows and 288 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, 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 16:28:55 2012 Optimize a model with 1402 rows, 1377 columns and 4794 nonzeros Presolve removed 24 rows and 144 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, 319 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 (319 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 16:28:55 2012 Optimize a model with 799 rows, 789 columns and 2397 nonzeros Presolve removed 24 rows and 72 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, 275 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 (275 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 16:28:55 2012 Optimize a model with 397 rows, 397 columns and 799 nonzeros Presolve removed 397 rows and 397 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 16:28:55 2012 Optimize a model with 598 rows, 593 columns and 1598 nonzeros Presolve removed 200 rows and 226 columns Presolve time: 0.00s Presolved: 398 rows, 367 columns, 1194 nonzeros Variable types: 0 continuous, 367 integer (367 binary) Root relaxation: objective 0.000000e+00, 192 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 0 159 - 0.00000 - - 0s Explored 0 nodes (585 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