current bounds on the number of colors: 0 -- 167 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 13281 rows, 14019 columns and 53203 nonzeros Presolve removed 26 rows and 2158 columns Presolve time: 0.12s Presolved: 13255 rows, 11861 columns, 51045 nonzeros Variable types: 0 continuous, 11861 integer (11861 binary) Root relaxation: objective 0.000000e+00, 248 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 (248 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 -- 83 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 6645 rows, 7005 columns and 26281 nonzeros Presolve removed 26 rows and 1066 columns Presolve time: 0.05s Presolved: 6619 rows, 5939 columns, 25215 nonzeros Variable types: 0 continuous, 5939 integer (5939 binary) Root relaxation: objective 0.000000e+00, 250 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 (250 simplex iterations) in 0.06 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 -- 41 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 3327 rows, 3498 columns and 12820 nonzeros Presolve removed 26 rows and 520 columns Presolve time: 0.02s Presolved: 3301 rows, 2978 columns, 12300 nonzeros Variable types: 0 continuous, 2978 integer (2978 binary) Root relaxation: objective 0.000000e+00, 250 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 (250 simplex iterations) in 0.02 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 -- 20 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 1747 rows, 1828 columns and 6410 nonzeros Presolve removed 26 rows and 260 columns Presolve time: 0.01s Presolved: 1721 rows, 1568 columns, 6150 nonzeros Variable types: 0 continuous, 1568 integer (1568 binary) Root relaxation: objective 0.000000e+00, 253 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 (253 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 -- 10 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 957 rows, 993 columns and 3205 nonzeros Presolve removed 26 rows and 130 columns Presolve time: 0.00s Presolved: 931 rows, 863 columns, 3075 nonzeros Variable types: 0 continuous, 863 integer (863 binary) Root relaxation: objective 0.000000e+00, 235 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 (235 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 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:34 2012 Optimize a model with 483 rows, 492 columns and 1282 nonzeros Presolve removed 173 rows and 202 columns Presolve time: 0.00s Presolved: 310 rows, 290 columns, 930 nonzeros Variable types: 0 continuous, 290 integer (290 binary) Root relaxation: objective 0.000000e+00, 155 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 0 129 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (503 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 16:22:34 2012 Optimize a model with 641 rows, 659 columns and 1923 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 615 rows, 581 columns, 1845 nonzeros Variable types: 0 continuous, 581 integer (581 binary) Root relaxation: objective 0.000000e+00, 231 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 (231 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