
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:47:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3177.39.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/grafo3177.39.lp
Reading time = 0.12 seconds
: 59131 rows, 1672 columns, 178528 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 59131 rows, 1672 columns and 178528 nonzeros
Model fingerprint: 0x431b8cc8
Variable types: 37 continuous, 1635 integer (1635 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 14441 rows and 20 columns
Presolve time: 0.67s
Presolved: 44690 rows, 1652 columns, 135469 nonzeros
Variable types: 0 continuous, 1652 integer (1615 binary)
Root relaxation presolved: 27781 rows, 18561 columns, 101651 nonzeros


Root relaxation: objective 3.700000e+01, 2942 iterations, 2.23 seconds (1.40 work units)
Total elapsed time = 6.22s (DegenMoves)

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

     0     0   37.00000    0  454          -   37.00000      -     -    7s
H    0     0                       8.0000000   37.00000   362%     -    9s
H    0     0                       9.0000000   37.00000   311%     -    9s
     0     0   37.00000    0  609    9.00000   37.00000   311%     -   14s
H    0     0                      11.0000000   37.00000   236%     -   15s
     0     0   37.00000    0  611   11.00000   37.00000   236%     -   15s
H    0     0                      12.0000000   37.00000   208%     -   18s
     0     0   37.00000    0  339   12.00000   37.00000   208%     -   28s
     0     0   37.00000    0  317   12.00000   37.00000   208%     -   29s
H    0     0                      13.0000000   37.00000   185%     -   41s
     0     0   37.00000    0  423   13.00000   37.00000   185%     -   41s
     0     0   37.00000    0  417   13.00000   37.00000   185%     -   43s
     0     0   37.00000    0  567   13.00000   37.00000   185%     -   50s

Cutting planes:
  Cover: 28
  Clique: 16
  MIR: 110
  StrongCG: 2
  GUB cover: 5
  Zero half: 24
  RLT: 61
  BQP: 1

Explored 1 nodes (42039 simplex iterations) in 50.09 seconds (31.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 8

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo3177.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:11:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3177.39.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/grafo3177.39.lp
Reading time = 0.09 seconds
: 59131 rows, 1672 columns, 178528 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 59131 rows, 1672 columns and 178528 nonzeros
Model fingerprint: 0x431b8cc8
Variable types: 37 continuous, 1635 integer (1635 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 14441 rows and 20 columns
Presolve time: 0.40s
Presolved: 44690 rows, 1652 columns, 135469 nonzeros
Variable types: 0 continuous, 1652 integer (1615 binary)
Root relaxation presolved: 27781 rows, 18561 columns, 101651 nonzeros


Root relaxation: objective 3.700000e+01, 2942 iterations, 1.40 seconds (1.40 work units)

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

     0     0   37.00000    0  454          -   37.00000      -     -    4s
H    0     0                       8.0000000   37.00000   362%     -    6s
H    0     0                       9.0000000   37.00000   311%     -    6s
     0     0   37.00000    0  609    9.00000   37.00000   311%     -    9s
H    0     0                      11.0000000   37.00000   236%     -    9s
     0     0   37.00000    0  611   11.00000   37.00000   236%     -   10s
H    0     0                      12.0000000   37.00000   208%     -   11s
     0     0   37.00000    0  339   12.00000   37.00000   208%     -   19s
     0     0   37.00000    0  317   12.00000   37.00000   208%     -   19s
H    0     0                      13.0000000   37.00000   185%     -   27s
     0     0   37.00000    0  423   13.00000   37.00000   185%     -   27s
     0     0   37.00000    0  417   13.00000   37.00000   185%     -   28s
H    0     0                      14.0000000   37.00000   164%     -   43s
     0     0   37.00000    0  440   14.00000   37.00000   164%     -   43s
     0     0   37.00000    0  418   14.00000   37.00000   164%     -   44s
     0     0   37.00000    0  369   14.00000   37.00000   164%     -   50s

Cutting planes:
  Cover: 22
  Clique: 14
  MIR: 91
  StrongCG: 1
  GUB cover: 2
  Zero half: 20
  RLT: 64
  BQP: 1

Explored 1 nodes (64117 simplex iterations) in 50.05 seconds (50.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 8

Time limit reached
Best objective 1.400000000000e+01, best bound 3.700000000000e+01, gap 164.2857%

Wrote result file './lp_solutions/grafo3177.39.sol'

