
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:48:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3977.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3977.37.lp
Reading time = 0.13 seconds
: 54426 rows, 1641 columns, 164470 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 54426 rows, 1641 columns and 164470 nonzeros
Model fingerprint: 0x55c91f46
Variable types: 38 continuous, 1603 integer (1603 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 13846 rows and 21 columns
Presolve time: 0.51s
Presolved: 40580 rows, 1620 columns, 123231 nonzeros
Variable types: 0 continuous, 1620 integer (1582 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 24374 rows, 17826 columns, 90819 nonzeros


Root relaxation: objective 3.800000e+01, 4607 iterations, 3.47 seconds (2.38 work units)
Total elapsed time = 8.02s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   38.00000    0  518    6.00000   38.00000   533%     -    9s
H    0     0                       7.0000000   38.00000   443%     -    9s
H    0     0                       9.0000000   38.00000   322%     -   12s
     0     0   38.00000    0  700    9.00000   38.00000   322%     -   18s
     0     0   38.00000    0  701    9.00000   38.00000   322%     -   19s
H    0     0                      11.0000000   38.00000   245%     -   38s
H    0     0                      12.0000000   38.00000   217%     -   38s
     0     0   37.00000    0  536   12.00000   37.00000   208%     -   38s
     0     0   37.00000    0  510   12.00000   37.00000   208%     -   39s
     0     0   37.00000    0  533   12.00000   37.00000   208%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 38
  Clique: 6
  MIR: 162
  StrongCG: 1
  GUB cover: 4
  Zero half: 72
  RLT: 60
  BQP: 1

Explored 1 nodes (42847 simplex iterations) in 50.09 seconds (31.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 9 ... 6

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo3977.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:30:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3977.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3977.37.lp
Reading time = 0.09 seconds
: 54426 rows, 1641 columns, 164470 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 54426 rows, 1641 columns and 164470 nonzeros
Model fingerprint: 0x55c91f46
Variable types: 38 continuous, 1603 integer (1603 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 13846 rows and 21 columns
Presolve time: 0.37s
Presolved: 40580 rows, 1620 columns, 123231 nonzeros
Variable types: 0 continuous, 1620 integer (1582 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 24374 rows, 17826 columns, 90819 nonzeros


Root relaxation: objective 3.800000e+01, 4607 iterations, 2.47 seconds (2.38 work units)
Total elapsed time = 5.94s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   38.00000    0  518    6.00000   38.00000   533%     -    6s
H    0     0                       7.0000000   38.00000   443%     -    6s
H    0     0                       9.0000000   38.00000   322%     -    8s
     0     0   38.00000    0  700    9.00000   38.00000   322%     -   12s
     0     0   38.00000    0  701    9.00000   38.00000   322%     -   13s
H    0     0                      11.0000000   38.00000   245%     -   27s
H    0     0                      12.0000000   38.00000   217%     -   27s
     0     0   37.00000    0  536   12.00000   37.00000   208%     -   27s
     0     0   37.00000    0  510   12.00000   37.00000   208%     -   27s
     0     0   36.00000    0  477   12.00000   36.00000   200%     -   47s
     0     0   36.00000    0  429   12.00000   36.00000   200%     -   47s
     0     0          -    0        12.00000   36.00000   200%     -   50s

Cutting planes:
  Cover: 27
  Clique: 7
  MIR: 119
  GUB cover: 2
  Zero half: 52
  RLT: 50

Explored 1 nodes (56185 simplex iterations) in 50.05 seconds (43.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 9 ... 6

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo3977.37.sol'

