current bounds on the number of colors: 0 -- 181 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:25:17 2012 Optimize a model with 15031 rows, 16455 columns and 60840 nonzeros Presolve removed 26 rows and 2340 columns Presolve time: 0.12s Presolved: 15005 rows, 14115 columns, 58500 nonzeros Variable types: 0 continuous, 14115 integer (14115 binary) Root relaxation: objective 0.000000e+00, 273 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 (273 simplex iterations) in 0.13 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 -- 90 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:25:18 2012 Optimize a model with 7606 rows, 8310 columns and 30420 nonzeros Presolve removed 26 rows and 1170 columns Presolve time: 0.07s Presolved: 7580 rows, 7140 columns, 29250 nonzeros Variable types: 0 continuous, 7140 integer (7140 binary) Root relaxation: objective 0.000000e+00, 276 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 (276 simplex iterations) in 0.08 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 -- 45 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:25:18 2012 Optimize a model with 3811 rows, 4147 columns and 14872 nonzeros Presolve removed 26 rows and 572 columns Presolve time: 0.02s Presolved: 3785 rows, 3575 columns, 14300 nonzeros Variable types: 0 continuous, 3575 integer (3575 binary) Root relaxation: objective 0.000000e+00, 280 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 (280 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 -- 22 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:25:18 2012 Optimize a model with 1996 rows, 2156 columns and 7436 nonzeros Presolve removed 26 rows and 286 columns Presolve time: 0.01s Presolved: 1970 rows, 1870 columns, 7150 nonzeros Variable types: 0 continuous, 1870 integer (1870 binary) Root relaxation: objective 0.000000e+00, 270 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 (270 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 16:25:18 2012 Optimize a model with 1006 rows, 1070 columns and 3380 nonzeros Presolve removed 26 rows and 130 columns Presolve time: 0.00s Presolved: 980 rows, 940 columns, 3250 nonzeros Variable types: 0 continuous, 940 integer (940 binary) Root relaxation: objective 0.000000e+00, 260 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 (260 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 16:25:18 2012 Optimize a model with 511 rows, 527 columns and 1352 nonzeros Presolve removed 191 rows and 222 columns Presolve time: 0.00s Presolved: 320 rows, 305 columns, 960 nonzeros Variable types: 0 continuous, 305 integer (305 binary) Root relaxation: objective 0.000000e+00, 174 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 0 137 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (494 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 16:25:18 2012 Optimize a model with 676 rows, 708 columns and 2028 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 650 rows, 630 columns, 1950 nonzeros Variable types: 0 continuous, 630 integer (630 binary) Root relaxation: objective 0.000000e+00, 265 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 (362 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