
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:47:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7034.39.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/grafo7034.39.lp
Reading time = 0.08 seconds
: 52012 rows, 1810 columns, 157377 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 52012 rows, 1810 columns and 157377 nonzeros
Model fingerprint: 0x6087c5c2
Variable types: 41 continuous, 1769 integer (1769 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 7583 rows and 31 columns
Presolve time: 0.34s
Presolved: 44429 rows, 1779 columns, 134947 nonzeros
Variable types: 0 continuous, 1779 integer (1738 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 24630 rows, 21578 columns, 95349 nonzeros


Root relaxation: objective 3.900000e+01, 1772 iterations, 0.49 seconds (0.45 work units)

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

     0     0   39.00000    0  281    8.00000   39.00000   388%     -    1s
H    0     0                      11.0000000   39.00000   255%     -    1s
H    0     0                      12.0000000   39.00000   225%     -    1s
     0     0   39.00000    0  479   12.00000   39.00000   225%     -    4s
     0     0   39.00000    0  471   12.00000   39.00000   225%     -    4s
H    0     0                      13.0000000   39.00000   200%     -   19s
H    0     0                      14.0000000   39.00000   179%     -   19s
H    0     0                      15.0000000   39.00000   160%     -   19s
     0     0   38.66667    0  571   15.00000   38.66667   158%     -   19s
     0     0   38.66667    0  505   15.00000   38.66667   158%     -   20s
     0     0   38.66667    0  477   15.00000   38.66667   158%     -   27s
     0     0   38.66667    0  457   15.00000   38.66667   158%     -   28s
     0     0   38.33333    0  329   15.00000   38.33333   156%     -   37s
     0     0   38.33333    0  420   15.00000   38.33333   156%     -   38s
     0     0   38.33333    0  364   15.00000   38.33333   156%     -   47s
     0     0   38.33333    0  495   15.00000   38.33333   156%     -   48s
     0     0          -    0        15.00000   38.33333   156%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 8
  Clique: 5
  MIR: 149
  GUB cover: 1
  Zero half: 55
  RLT: 52
  BQP: 2

Explored 1 nodes (62604 simplex iterations) in 50.06 seconds (44.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 2

Time limit reached
Best objective 1.500000000000e+01, best bound 3.800000000000e+01, gap 153.3333%

Wrote result file './lp_solutions/grafo7034.39.sol'

