
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:33:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6972.40.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/grafo6972.40.lp
Reading time = 0.11 seconds
: 66532 rows, 1981 columns, 201139 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 66532 rows, 1981 columns and 201139 nonzeros
Model fingerprint: 0x2095dbf4
Variable types: 43 continuous, 1938 integer (1938 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]
Found heuristic solution: objective 2.0000000
Presolve removed 14217 rows and 25 columns
Presolve time: 0.44s
Presolved: 52315 rows, 1956 columns, 158863 nonzeros
Variable types: 0 continuous, 1956 integer (1913 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1953 rows, 54268 columns, 160819 nonzeros


Root relaxation: objective 4.300000e+01, 2047 iterations, 0.41 seconds (0.41 work units)

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

     0     0   43.00000    0  481    9.00000   43.00000   378%     -    4s
H    0     0                      13.0000000   43.00000   231%     -    6s
     0     0   43.00000    0  760   13.00000   43.00000   231%     -   13s
     0     0   43.00000    0  744   13.00000   43.00000   231%     -   14s
H    0     0                      14.0000000   43.00000   207%     -   43s
H    0     0                      15.0000000   43.00000   187%     -   43s
     0     0   43.00000    0  528   15.00000   43.00000   187%     -   43s
     0     0   43.00000    0  520   15.00000   43.00000   187%     -   44s
     0     0   43.00000    0  701   15.00000   43.00000   187%     -   50s

Cutting planes:
  Cover: 24
  Clique: 6
  MIR: 195
  StrongCG: 3
  GUB cover: 3
  Zero half: 37
  RLT: 60
  Relax-and-lift: 1
  BQP: 1

Explored 1 nodes (47582 simplex iterations) in 50.08 seconds (44.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 2

Time limit reached
Best objective 1.500000000000e+01, best bound 4.300000000000e+01, gap 186.6667%

Wrote result file './lp_solutions/grafo6972.40.sol'

