current bounds on the number of colors: 0 -- 212 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:41 2012 Optimize a model with 25016 rows, 22706 columns and 96884 nonzeros Presolve removed 19 rows and 2014 columns Presolve time: 0.13s Presolved: 24997 rows, 20692 columns, 94870 nonzeros Variable types: 0 continuous, 20692 integer (20692 binary) Root relaxation: objective 0.000000e+00, 349 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 (349 simplex iterations) in 0.15 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 -- 106 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:41 2012 Optimize a model with 12614 rows, 11470 columns and 48442 nonzeros Presolve removed 19 rows and 1007 columns Presolve time: 0.12s Presolved: 12595 rows, 10463 columns, 47435 nonzeros Variable types: 0 continuous, 10463 integer (10463 binary) Root relaxation: objective 0.000000e+00, 348 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 (348 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:41 2012 Optimize a model with 6296 rows, 5746 columns and 23764 nonzeros Presolve removed 19 rows and 494 columns Presolve time: 0.04s Presolved: 6277 rows, 5252 columns, 23270 nonzeros Variable types: 0 continuous, 5252 integer (5252 binary) Root relaxation: objective 0.000000e+00, 346 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 (346 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 16:33:42 2012 Optimize a model with 3254 rows, 2990 columns and 11882 nonzeros Presolve removed 19 rows and 247 columns Presolve time: 0.01s Presolved: 3235 rows, 2743 columns, 11635 nonzeros Variable types: 0 continuous, 2743 integer (2743 binary) Root relaxation: objective 0.000000e+00, 364 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 (364 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 16:33:42 2012 Optimize a model with 1616 rows, 1506 columns and 5484 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1597 rows, 1392 columns, 5370 nonzeros Variable types: 0 continuous, 1392 integer (1392 binary) Root relaxation: objective 0.000000e+00, 344 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 (344 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 16:33:42 2012 Optimize a model with 914 rows, 870 columns and 2742 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 895 rows, 813 columns, 2685 nonzeros Variable types: 0 continuous, 813 integer (813 binary) Root relaxation: objective 0.000000e+00, 360 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 6 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (581 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 16:33:42 2012 Optimize a model with 446 rows, 446 columns and 914 nonzeros Presolve removed 446 rows and 446 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 16:33:42 2012 Optimize a model with 680 rows, 658 columns and 1828 nonzeros Presolve removed 214 rows and 234 columns Presolve time: 0.00s Presolved: 466 rows, 424 columns, 1398 nonzeros Variable types: 0 continuous, 424 integer (424 binary) Root relaxation: objective 0.000000e+00, 229 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 Explored 0 nodes (742 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