
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:52:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11542.34.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/grafo11542.34.lp
Reading time = 0.10 seconds
: 61597 rows, 1618 columns, 186118 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 61597 rows, 1618 columns and 186118 nonzeros
Model fingerprint: 0xc72a336d
Variable types: 37 continuous, 1581 integer (1581 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 24068 rows and 46 columns
Presolve time: 0.35s
Presolved: 37529 rows, 1572 columns, 114340 nonzeros
Variable types: 0 continuous, 1572 integer (1535 binary)
Root relaxation presolved: 23775 rows, 15326 columns, 86832 nonzeros


Root relaxation: objective 3.400000e+01, 1885 iterations, 0.56 seconds (0.49 work units)

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

     0     0   34.00000    0  345          -   34.00000      -     -    1s
H    0     0                       7.0000000   34.00000   386%     -    2s
     0     0   34.00000    0  529    7.00000   34.00000   386%     -    5s
H    0     0                       8.0000000   34.00000   325%     -    5s
     0     0   34.00000    0  503    8.00000   34.00000   325%     -    5s
     0     0   34.00000    0  436    8.00000   34.00000   325%     -   18s
     0     0   34.00000    0  388    8.00000   34.00000   325%     -   19s
     0     0   34.00000    0  352    8.00000   34.00000   325%     -   27s
H    0     0                       9.0000000   34.00000   278%     -   27s
     0     0   34.00000    0  345    9.00000   34.00000   278%     -   27s
     0     0   34.00000    0  387    9.00000   34.00000   278%     -   32s
H    0     0                      10.0000000   34.00000   240%     -   33s
     0     0   34.00000    0  374   10.00000   34.00000   240%     -   33s
     0     0   34.00000    0  290   10.00000   34.00000   240%     -   38s
     0     0   34.00000    0  343   10.00000   34.00000   240%     -   39s
     0     0   34.00000    0  328   10.00000   34.00000   240%     -   45s
H    0     0                      11.0000000   34.00000   209%     -   45s
H    0     0                      12.0000000   34.00000   183%     -   45s
     0     0   34.00000    0  423   12.00000   34.00000   183%     -   46s
     0     0   34.00000    0  471   12.00000   34.00000   183%     -   50s

Cutting planes:
  Cover: 18
  Clique: 16
  MIR: 100
  StrongCG: 3
  GUB cover: 1
  Inf proof: 3
  Zero half: 28
  RLT: 46
  BQP: 4

Explored 1 nodes (72390 simplex iterations) in 50.05 seconds (46.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 7

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo11542.34.sol'

