current bounds on the number of colors: 0 -- 214 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:24 2012 Optimize a model with 26429 rows, 23143 columns and 101543 nonzeros Presolve removed 19 rows and 2033 columns Presolve time: 0.13s Presolved: 26410 rows, 21110 columns, 99510 nonzeros Variable types: 0 continuous, 21110 integer (21110 binary) Root relaxation: objective 0.000000e+00, 388 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 (388 simplex iterations) in 0.16 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 -- 107 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:24 2012 Optimize a model with 13199 rows, 11587 columns and 50297 nonzeros Presolve removed 19 rows and 1007 columns Presolve time: 0.12s Presolved: 13180 rows, 10580 columns, 49290 nonzeros Variable types: 0 continuous, 10580 integer (10580 binary) Root relaxation: objective 0.000000e+00, 387 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 (387 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:24 2012 Optimize a model with 6584 rows, 5809 columns and 24674 nonzeros Presolve removed 19 rows and 494 columns Presolve time: 0.04s Presolved: 6565 rows, 5315 columns, 24180 nonzeros Variable types: 0 continuous, 5315 integer (5315 binary) Root relaxation: objective 0.000000e+00, 390 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 (390 simplex iterations) in 0.05 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:25 2012 Optimize a model with 3399 rows, 3027 columns and 12337 nonzeros Presolve removed 19 rows and 247 columns Presolve time: 0.01s Presolved: 3380 rows, 2780 columns, 12090 nonzeros Variable types: 0 continuous, 2780 integer (2780 binary) Root relaxation: objective 0.000000e+00, 386 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 (386 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:25 2012 Optimize a model with 1684 rows, 1529 columns and 5694 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1665 rows, 1415 columns, 5580 nonzeros Variable types: 0 continuous, 1415 integer (1415 binary) Root relaxation: objective 0.000000e+00, 370 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 (370 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:25 2012 Optimize a model with 949 rows, 887 columns and 2847 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 930 rows, 830 columns, 2790 nonzeros Variable types: 0 continuous, 830 integer (830 binary) Root relaxation: objective 0.000000e+00, 356 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 (490 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:25 2012 Optimize a model with 459 rows, 459 columns and 949 nonzeros Presolve removed 459 rows and 459 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 16:34:25 2012 Optimize a model with 704 rows, 673 columns and 1898 nonzeros Presolve removed 218 rows and 239 columns Presolve time: 0.00s Presolved: 486 rows, 434 columns, 1458 nonzeros Variable types: 0 continuous, 434 integer (434 binary) Root relaxation: objective 0.000000e+00, 213 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 0 191 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (690 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 - optimal solution found: number of colors: 3