
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:21:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6381.42.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/grafo6381.42.lp
Reading time = 0.18 seconds
: 111669 rows, 2044 columns, 336578 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 111669 rows, 2044 columns and 336578 nonzeros
Model fingerprint: 0xc243d9fe
Variable types: 42 continuous, 2002 integer (2002 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 50184 rows and 47 columns
Presolve time: 0.66s
Presolved: 61485 rows, 1997 columns, 186340 nonzeros
Variable types: 0 continuous, 1997 integer (1955 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1991 rows, 63476 columns, 188337 nonzeros


Root relaxation: objective 3.400000e+01, 1541 iterations, 0.31 seconds (0.29 work units)

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

     0     0   34.00000    0  334    8.00000   34.00000   325%     -    4s
H    0     0                      11.0000000   34.00000   209%     -    4s
H    0     0                      13.0000000   34.00000   162%     -   11s
     0     0   34.00000    0  645   13.00000   34.00000   162%     -   11s
     0     0   34.00000    0  591   13.00000   34.00000   162%     -   13s
H    0     0                      15.0000000   34.00000   127%     -   45s
H    0     0                      17.0000000   34.00000   100%     -   45s
     0     0   33.98000    0  400   17.00000   33.98000   100%     -   46s
     0     0   33.98000    0  413   17.00000   33.98000   100%     -   46s
     0     0          -    0        17.00000   33.98000   100%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 30
  Clique: 11
  MIR: 110
  StrongCG: 3
  GUB cover: 1
  Zero half: 27
  RLT: 49
  BQP: 1

Explored 1 nodes (41727 simplex iterations) in 50.08 seconds (46.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 15 13 ... 8

Time limit reached
Best objective 1.700000000000e+01, best bound 3.300000000000e+01, gap 94.1176%

Wrote result file './lp_solutions/grafo6381.42.sol'

