current bounds on the number of colors: 0 -- 149 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 7993 rows, 11132 columns and 34558 nonzeros Presolve removed 32 rows and 2368 columns Presolve time: 0.11s Presolved: 7961 rows, 8764 columns, 32190 nonzeros Variable types: 0 continuous, 8764 integer (8764 binary) Root relaxation: objective 0.000000e+00, 197 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 (197 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 -- 74 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 4071 rows, 5619 columns and 17279 nonzeros Presolve removed 32 rows and 1184 columns Presolve time: 0.04s Presolved: 4039 rows, 4435 columns, 16095 nonzeros Variable types: 0 continuous, 4435 integer (4435 binary) Root relaxation: objective 0.000000e+00, 197 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 (197 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 -- 37 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 2057 rows, 2788 columns and 8406 nonzeros Presolve removed 32 rows and 576 columns Presolve time: 0.01s Presolved: 2025 rows, 2212 columns, 7830 nonzeros Variable types: 0 continuous, 2212 integer (2212 binary) Root relaxation: objective 0.000000e+00, 197 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 (197 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 -- 18 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 1103 rows, 1447 columns and 4203 nonzeros Presolve removed 32 rows and 288 columns Presolve time: 0.00s Presolved: 1071 rows, 1159 columns, 3915 nonzeros Variable types: 0 continuous, 1159 integer (1159 binary) Root relaxation: objective 0.000000e+00, 190 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 (190 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 -- 9 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 573 rows, 702 columns and 1868 nonzeros Presolve removed 32 rows and 128 columns Presolve time: 0.00s Presolved: 541 rows, 574 columns, 1740 nonzeros Variable types: 0 continuous, 574 integer (574 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 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (192 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 16:19:46 2012 Optimize a model with 361 rows, 404 columns and 934 nonzeros Presolve removed 161 rows and 199 columns Presolve time: 0.00s Presolved: 200 rows, 205 columns, 600 nonzeros Variable types: 0 continuous, 205 integer (205 binary) Root relaxation: objective 0.000000e+00, 83 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 (83 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 -- 2 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:19:46 2012 Optimize a model with 255 rows, 255 columns and 467 nonzeros Presolve removed 255 rows and 255 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 - optimal solution found: number of colors: 2