current bounds on the number of colors: 0 -- 122 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:46 2012 Optimize a model with 5673 rows, 7533 columns and 24095 nonzeros Presolve removed 35 rows and 2135 columns Presolve time: 0.06s Presolved: 5638 rows, 5398 columns, 21960 nonzeros Variable types: 0 continuous, 5398 integer (5398 binary) Root relaxation: objective 0.000000e+00, 149 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 (149 simplex iterations) in 0.07 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 -- 61 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:46 2012 Optimize a model with 2852 rows, 3751 columns and 11850 nonzeros Presolve removed 35 rows and 1050 columns Presolve time: 0.02s Presolved: 2817 rows, 2701 columns, 10800 nonzeros Variable types: 0 continuous, 2701 integer (2701 binary) Root relaxation: objective 0.000000e+00, 151 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 (151 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:46 2012 Optimize a model with 1487 rows, 1921 columns and 5925 nonzeros Presolve removed 35 rows and 525 columns Presolve time: 0.01s Presolved: 1452 rows, 1396 columns, 5400 nonzeros Variable types: 0 continuous, 1396 integer (1396 binary) Root relaxation: objective 0.000000e+00, 159 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 (159 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:46 2012 Optimize a model with 759 rows, 945 columns and 2765 nonzeros Presolve removed 35 rows and 245 columns Presolve time: 0.00s Presolved: 724 rows, 700 columns, 2520 nonzeros Variable types: 0 continuous, 700 integer (700 binary) Root relaxation: objective 0.000000e+00, 156 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 (156 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:46 2012 Optimize a model with 395 rows, 457 columns and 1185 nonzeros Presolve removed 35 rows and 105 columns Presolve time: 0.00s Presolved: 360 rows, 352 columns, 1080 nonzeros Variable types: 0 continuous, 352 integer (352 binary) Root relaxation: objective 0.000000e+00, 141 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 (141 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 16:16:46 2012 Optimize a model with 213 rows, 213 columns and 395 nonzeros Presolve removed 213 rows and 213 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 16:16:46 2012 Optimize a model with 304 rows, 335 columns and 790 nonzeros Presolve removed 124 rows and 160 columns Presolve time: 0.00s Presolved: 180 rows, 175 columns, 540 nonzeros Variable types: 0 continuous, 175 integer (175 binary) Root relaxation: objective 0.000000e+00, 98 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 85 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (325 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 - optimal solution found: number of colors: 3