
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:42:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11083.37.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/grafo11083.37.lp
Reading time = 0.13 seconds
: 74979 rows, 1971 columns, 226675 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 74979 rows, 1971 columns and 226675 nonzeros
Model fingerprint: 0x490e1e64
Variable types: 44 continuous, 1927 integer (1927 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 4.0000000
Presolve removed 18810 rows and 17 columns
Presolve time: 0.53s
Presolved: 56169 rows, 1954 columns, 170665 nonzeros
Variable types: 0 continuous, 1954 integer (1910 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1951 rows, 58120 columns, 172619 nonzeros


Root relaxation: objective 4.500000e+01, 1554 iterations, 0.30 seconds (0.26 work units)

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

     0     0   45.00000    0  375   12.00000   45.00000   275%     -    2s
H    0     0                      13.0000000   45.00000   246%     -    2s
H    0     0                      14.0000000   45.00000   221%     -    3s
     0     0   45.00000    0  665   14.00000   45.00000   221%     -    9s
     0     0   45.00000    0  665   14.00000   45.00000   221%     -   10s
H    0     0                      15.0000000   45.00000   200%     -   35s
H    0     0                      16.0000000   45.00000   181%     -   35s
     0     0   45.00000    0  647   16.00000   45.00000   181%     -   35s
H    0     0                      17.0000000   45.00000   165%     -   37s
     0     0   45.00000    0  611   17.00000   45.00000   165%     -   37s
     0     0   45.00000    0  792   17.00000   45.00000   165%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 30
  Clique: 11
  MIR: 182
  StrongCG: 4
  GUB cover: 1
  Zero half: 65
  RLT: 78
  BQP: 1

Explored 1 nodes (39874 simplex iterations) in 50.05 seconds (42.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 16 15 ... 4

Time limit reached
Best objective 1.700000000000e+01, best bound 4.500000000000e+01, gap 164.7059%

Wrote result file './lp_solutions/grafo11083.37.sol'

