current bounds on the number of colors: 0 -- 190 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:24 2012 Optimize a model with 19285 rows, 18251 columns and 75335 nonzeros Presolve removed 23 rows and 2185 columns Presolve time: 0.12s Presolved: 19262 rows, 16066 columns, 73150 nonzeros Variable types: 0 continuous, 16066 integer (16066 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 0.14 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 -- 95 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 9637 rows, 9131 columns and 37271 nonzeros Presolve removed 23 rows and 1081 columns Presolve time: 0.08s Presolved: 9614 rows, 8050 columns, 36190 nonzeros Variable types: 0 continuous, 8050 integer (8050 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 0.09 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 -- 47 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 4813 rows, 4571 columns and 18239 nonzeros Presolve removed 23 rows and 529 columns Presolve time: 0.03s Presolved: 4790 rows, 4042 columns, 17710 nonzeros Variable types: 0 continuous, 4042 integer (4042 binary) Root relaxation: objective 0.000000e+00, 295 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 (295 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 -- 23 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 2401 rows, 2291 columns and 8723 nonzeros Presolve removed 23 rows and 253 columns Presolve time: 0.01s Presolved: 2378 rows, 2038 columns, 8470 nonzeros Variable types: 0 continuous, 2038 integer (2038 binary) Root relaxation: objective 0.000000e+00, 299 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 (299 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 -- 11 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 1195 rows, 1151 columns and 3965 nonzeros Presolve removed 23 rows and 115 columns Presolve time: 0.01s Presolved: 1172 rows, 1036 columns, 3850 nonzeros Variable types: 0 continuous, 1036 integer (1036 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 0.01 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 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 592 rows, 581 columns and 1586 nonzeros Presolve removed 194 rows and 219 columns Presolve time: 0.00s Presolved: 398 rows, 362 columns, 1194 nonzeros Variable types: 0 continuous, 362 integer (362 binary) Root relaxation: objective 0.000000e+00, 181 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 0 157 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (586 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 - current bounds on the number of colors: 2 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:25 2012 Optimize a model with 793 rows, 771 columns and 2379 nonzeros Presolve removed 23 rows and 69 columns Presolve time: 0.00s Presolved: 770 rows, 702 columns, 2310 nonzeros Variable types: 0 continuous, 702 integer (702 binary) Root relaxation: objective 0.000000e+00, 281 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 (281 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