
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:30:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9917.38.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/grafo9917.38.lp
Reading time = 0.10 seconds
: 61547 rows, 1764 columns, 185953 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 61547 rows, 1764 columns and 185953 nonzeros
Model fingerprint: 0x1ec866f6
Variable types: 39 continuous, 1725 integer (1725 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 16468 rows and 14 columns
Presolve time: 0.39s
Presolved: 45079 rows, 1750 columns, 136959 nonzeros
Variable types: 0 continuous, 1750 integer (1711 binary)
Root relaxation presolved: 27504 rows, 19325 columns, 101809 nonzeros


Root relaxation: objective 4.200000e+01, 2419 iterations, 0.91 seconds (0.80 work units)

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

     0     0   42.00000    0  387          -   42.00000      -     -    4s
H    0     0                       6.0000000   42.00000   600%     -    4s
H    0     0                       7.0000000   42.00000   500%     -    4s
     0     0   42.00000    0  525    7.00000   42.00000   500%     -    7s
H    0     0                      10.0000000   42.00000   320%     -    8s
     0     0   42.00000    0  514   10.00000   42.00000   320%     -    8s
     0     0   42.00000    0  562   10.00000   42.00000   320%     -   23s
     0     0   42.00000    0  561   10.00000   42.00000   320%     -   24s
     0     0   42.00000    0  626   10.00000   42.00000   320%     -   43s
     0     0   42.00000    0  570   10.00000   42.00000   320%     -   43s
     0     0   42.00000    0  699   10.00000   42.00000   320%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 26
  Clique: 11
  MIR: 147
  StrongCG: 1
  GUB cover: 1
  Zero half: 76
  RLT: 66
  BQP: 2

Explored 1 nodes (59291 simplex iterations) in 50.05 seconds (49.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 7 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.200000000000e+01, gap 320.0000%

Wrote result file './lp_solutions/grafo9917.38.sol'

