current bounds on the number of colors: 0 -- 134 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 7839 rows, 9093 columns and 32093 nonzeros Presolve removed 26 rows and 1742 columns Presolve time: 0.09s Presolved: 7813 rows, 7351 columns, 30351 nonzeros Variable types: 0 continuous, 7351 integer (7351 binary) Root relaxation: objective 0.000000e+00, 188 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 (188 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 -- 67 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 3929 rows, 4537 columns and 15807 nonzeros Presolve removed 26 rows and 858 columns Presolve time: 0.03s Presolved: 3903 rows, 3679 columns, 14949 nonzeros Variable types: 0 continuous, 3679 integer (3679 binary) Root relaxation: objective 0.000000e+00, 187 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 (187 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 -- 33 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 1974 rows, 2259 columns and 7664 nonzeros Presolve removed 26 rows and 416 columns Presolve time: 0.01s Presolved: 1948 rows, 1843 columns, 7248 nonzeros Variable types: 0 continuous, 1843 integer (1843 binary) Root relaxation: objective 0.000000e+00, 191 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 (191 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 -- 16 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 1054 rows, 1187 columns and 3832 nonzeros Presolve removed 26 rows and 208 columns Presolve time: 0.00s Presolved: 1028 rows, 979 columns, 3624 nonzeros Variable types: 0 continuous, 979 integer (979 binary) Root relaxation: objective 0.000000e+00, 178 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 (178 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 594 rows, 651 columns and 1916 nonzeros Presolve removed 26 rows and 104 columns Presolve time: 0.00s Presolved: 568 rows, 547 columns, 1812 nonzeros Variable types: 0 continuous, 547 integer (547 binary) Root relaxation: objective 0.000000e+00, 172 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 (232 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 364 rows, 383 columns and 958 nonzeros Presolve removed 138 rows and 166 columns Presolve time: 0.00s Presolved: 226 rows, 217 columns, 678 nonzeros Variable types: 0 continuous, 217 integer (217 binary) Root relaxation: objective 0.000000e+00, 112 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 96 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (364 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current bounds on the number of colors: 2 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:57 2012 Optimize a model with 479 rows, 517 columns and 1437 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 453 rows, 439 columns, 1359 nonzeros Variable types: 0 continuous, 439 integer (439 binary) Root relaxation: objective 0.000000e+00, 171 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 (230 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% optimal solution found: number of colors: 3