
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:50:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3766.38.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/grafo3766.38.lp
Reading time = 0.09 seconds
: 54934 rows, 1675 columns, 165982 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 54934 rows, 1675 columns and 165982 nonzeros
Model fingerprint: 0xc5e071a9
Variable types: 38 continuous, 1637 integer (1637 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 12111 rows and 20 columns
Presolve time: 0.37s
Presolved: 42823 rows, 1655 columns, 129904 nonzeros
Variable types: 0 continuous, 1655 integer (1617 binary)
Root relaxation presolved: 25951 rows, 18527 columns, 96160 nonzeros


Root relaxation: objective 3.800000e+01, 1731 iterations, 0.50 seconds (0.47 work units)

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

     0     0   38.00000    0  344          -   38.00000      -     -    2s
H    0     0                       5.0000000   38.00000   660%     -    2s
H    0     0                       8.0000000   38.00000   375%     -    2s
H    0     0                       9.0000000   38.00000   322%     -    6s
     0     0   38.00000    0  640    9.00000   38.00000   322%     -    7s
     0     0   38.00000    0  582    9.00000   38.00000   322%     -    7s
H    0     0                      10.0000000   38.00000   280%     -   10s
H    0     0                      11.0000000   38.00000   245%     -   19s
H    0     0                      13.0000000   38.00000   192%     -   19s
     0     0   38.00000    0  455   13.00000   38.00000   192%     -   19s
     0     0   38.00000    0  473   13.00000   38.00000   192%     -   20s
H    0     0                      14.0000000   38.00000   171%     -   28s
H    0     0                      15.0000000   38.00000   153%     -   28s
     0     0   38.00000    0  415   15.00000   38.00000   153%     -   28s
     0     0   38.00000    0  390   15.00000   38.00000   153%     -   28s
H    0     0                      16.0000000   38.00000   137%     -   39s
     0     0   38.00000    0  435   16.00000   38.00000   137%     -   39s
     0     0   38.00000    0  468   16.00000   38.00000   137%     -   40s
     0     0   38.00000    0  337   16.00000   38.00000   137%     -   49s
     0     0          -    0        16.00000   38.00000   137%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 1
  Clique: 13
  MIR: 73
  StrongCG: 1
  Zero half: 8
  RLT: 38
  BQP: 2

Explored 1 nodes (61161 simplex iterations) in 50.06 seconds (44.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 16 15 14 ... 5

Time limit reached
Best objective 1.600000000000e+01, best bound 3.800000000000e+01, gap 137.5000%

Wrote result file './lp_solutions/grafo3766.38.sol'

