
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:32:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7396.42.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/grafo7396.42.lp
Reading time = 0.09 seconds
: 55264 rows, 1791 columns, 166948 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 55264 rows, 1791 columns and 166948 nonzeros
Model fingerprint: 0x6f317985
Variable types: 38 continuous, 1753 integer (1753 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 8777 rows and 34 columns
Presolve time: 0.38s
Presolved: 46487 rows, 1757 columns, 140959 nonzeros
Variable types: 0 continuous, 1757 integer (1719 binary)
Root relaxation presolved: 26571 rows, 21673 columns, 101127 nonzeros


Root relaxation: objective 2.700000e+01, 3218 iterations, 1.42 seconds (1.35 work units)
Total elapsed time = 5.03s (DegenMoves)

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

     0     0   27.00000    0  273          -   27.00000      -     -    5s
H    0     0                       4.0000000   27.00000   575%     -    6s
H    0     0                       5.0000000   27.00000   440%     -    6s
H    0     0                       6.0000000   27.00000   350%     -    6s
     0     0   27.00000    0  491    6.00000   27.00000   350%     -    8s
     0     0   27.00000    0  469    6.00000   27.00000   350%     -    8s
     0     0   27.00000    0  480    6.00000   27.00000   350%     -   15s
     0     0   27.00000    0  501    6.00000   27.00000   350%     -   16s
H    0     0                       8.0000000   27.00000   238%     -   23s
H    0     0                      10.0000000   27.00000   170%     -   23s
     0     0   27.00000    0  466   10.00000   27.00000   170%     -   23s
     0     0   27.00000    0  422   10.00000   27.00000   170%     -   23s
H    0     0                      11.0000000   27.00000   145%     -   37s
     0     0   26.66667    0  269   11.00000   26.66667   142%     -   37s
     0     0   26.66667    0  285   11.00000   26.66667   142%     -   38s
H    0     0                      12.0000000   26.66667   122%     -   44s
     0     0   26.66667    0  331   12.00000   26.66667   122%     -   44s
     0     0   26.66667    0  392   12.00000   26.66667   122%     -   45s
     0     0   26.66667    0  522   12.00000   26.66667   122%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 27
  Clique: 11
  MIR: 75
  StrongCG: 2
  GUB cover: 2
  Zero half: 173
  RLT: 27
  BQP: 1

Explored 1 nodes (72934 simplex iterations) in 50.05 seconds (47.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 2.600000000000e+01, gap 116.6667%

Wrote result file './lp_solutions/grafo7396.42.sol'

