
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:05:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5553.37.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/grafo5553.37.lp
Reading time = 0.15 seconds
: 57358 rows, 1704 columns, 173387 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 57358 rows, 1704 columns and 173387 nonzeros
Model fingerprint: 0x1eae01a9
Variable types: 40 continuous, 1664 integer (1664 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 12697 rows and 24 columns
Presolve time: 0.72s
Presolved: 44661 rows, 1680 columns, 135586 nonzeros
Variable types: 0 continuous, 1680 integer (1640 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 27011 rows, 19330 columns, 100286 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4863    3.7999824e+01   3.356159e+02   0.000000e+00      5s
    5473    3.8000000e+01   0.000000e+00   0.000000e+00      6s
    5473    3.8000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.800000e+01, 5473 iterations, 4.94 seconds (3.43 work units)
Total elapsed time = 10.17s (DegenMoves)

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

     0     0   38.00000    0  293    6.00000   38.00000   533%     -   10s
H    0     0                      10.0000000   38.00000   280%     -   10s
H    0     0                      11.0000000   38.00000   245%     -   11s
     0     0   38.00000    0  530   11.00000   38.00000   245%     -   15s
     0     0   38.00000    0  510   11.00000   38.00000   245%     -   16s
H    0     0                      12.0000000   38.00000   217%     -   19s
     0     0   38.00000    0  501   12.00000   38.00000   217%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 25
  Cover: 14
  Clique: 2
  MIR: 108
  StrongCG: 1
  Zero half: 69
  RLT: 46

Explored 1 nodes (40000 simplex iterations) in 50.05 seconds (37.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 6 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.800000000000e+01, gap 216.6667%

Wrote result file './lp_solutions/grafo5553.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:33:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5553.37.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/grafo5553.37.lp
Reading time = 0.09 seconds
: 57358 rows, 1704 columns, 173387 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 57358 rows, 1704 columns and 173387 nonzeros
Model fingerprint: 0x1eae01a9
Variable types: 40 continuous, 1664 integer (1664 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 12697 rows and 24 columns
Presolve time: 0.40s
Presolved: 44661 rows, 1680 columns, 135586 nonzeros
Variable types: 0 continuous, 1680 integer (1640 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 27011 rows, 19330 columns, 100286 nonzeros


Root relaxation: objective 3.800000e+01, 5473 iterations, 3.51 seconds (3.43 work units)
Total elapsed time = 6.85s (DegenMoves)

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

     0     0   38.00000    0  293    6.00000   38.00000   533%     -    7s
H    0     0                      10.0000000   38.00000   280%     -    7s
H    0     0                      11.0000000   38.00000   245%     -    8s
     0     0   38.00000    0  530   11.00000   38.00000   245%     -   10s
     0     0   38.00000    0  510   11.00000   38.00000   245%     -   11s
H    0     0                      12.0000000   38.00000   217%     -   13s
H    0     0                      13.0000000   38.00000   192%     -   43s
H    0     0                      14.0000000   38.00000   171%     -   43s
     0     0   38.00000    0  398   14.00000   38.00000   171%     -   43s
     0     0   38.00000    0  395   14.00000   38.00000   171%     -   43s
     0     0   38.00000    0  615   14.00000   38.00000   171%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 32
  Clique: 1
  MIR: 145
  GUB cover: 3
  Zero half: 52
  RLT: 55
  BQP: 3

Explored 1 nodes (51789 simplex iterations) in 50.06 seconds (45.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 6

Time limit reached
Best objective 1.400000000000e+01, best bound 3.800000000000e+01, gap 171.4286%

Wrote result file './lp_solutions/grafo5553.37.sol'

