current bounds on the number of colors: 0 -- 246 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:56 2012 Optimize a model with 39852 rows, 30580 columns and 149076 nonzeros Presolve removed 14 rows and 1722 columns Presolve time: 0.20s Presolved: 39838 rows, 28858 columns, 147354 nonzeros Variable types: 0 continuous, 28858 integer (28858 binary) Root relaxation: objective 0.000000e+00, 447 iterations, 0.02 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 (658 simplex iterations) in 0.27 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 -- 123 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:56 2012 Optimize a model with 19888 rows, 15328 columns and 73932 nonzeros Presolve removed 14 rows and 854 columns Presolve time: 0.13s Presolved: 19874 rows, 14474 columns, 73078 nonzeros Variable types: 0 continuous, 14474 integer (14474 binary) Root relaxation: objective 0.000000e+00, 445 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 (445 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 -- 61 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:57 2012 Optimize a model with 9906 rows, 7702 columns and 36360 nonzeros Presolve removed 14 rows and 420 columns Presolve time: 0.06s Presolved: 9892 rows, 7282 columns, 35940 nonzeros Variable types: 0 continuous, 7282 integer (7282 binary) Root relaxation: objective 0.000000e+00, 453 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 (453 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:57 2012 Optimize a model with 5076 rows, 4012 columns and 18180 nonzeros Presolve removed 14 rows and 210 columns Presolve time: 0.02s Presolved: 5062 rows, 3802 columns, 17970 nonzeros Variable types: 0 continuous, 3802 integer (3802 binary) Root relaxation: objective 0.000000e+00, 477 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 (754 simplex iterations) in 0.04 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 16:46:57 2012 Optimize a model with 2500 rows, 2044 columns and 8484 nonzeros Presolve removed 14 rows and 98 columns Presolve time: 0.01s Presolved: 2486 rows, 1946 columns, 8386 nonzeros Variable types: 0 continuous, 1946 integer (1946 binary) Root relaxation: objective 0.000000e+00, 467 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 (709 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:57 2012 Optimize a model with 1212 rows, 1060 columns and 3636 nonzeros Presolve removed 14 rows and 42 columns Presolve time: 0.00s Presolved: 1198 rows, 1018 columns, 3594 nonzeros Variable types: 0 continuous, 1018 integer (1018 binary) Root relaxation: objective 0.000000e+00, 527 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 (780 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 16:46:57 2012 Optimize a model with 568 rows, 568 columns and 1212 nonzeros Presolve removed 568 rows and 568 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 16:46:57 2012 Optimize a model with 890 rows, 814 columns and 2424 nonzeros Presolve removed 250 rows and 266 columns Presolve time: 0.00s Presolved: 640 rows, 548 columns, 1920 nonzeros Variable types: 0 continuous, 548 integer (548 binary) Root relaxation: objective 0.000000e+00, 262 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 0 225 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (825 simplex iterations) in 0.02 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