
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:08:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2100.29.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/grafo2100.29.lp
Reading time = 0.15 seconds
: 67347 rows, 1113 columns, 202815 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 67347 rows, 1113 columns and 202815 nonzeros
Model fingerprint: 0x46f9b26c
Variable types: 31 continuous, 1082 integer (1082 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 28282 rows and 12 columns
Presolve time: 0.60s
Presolved: 39065 rows, 1101 columns, 118135 nonzeros
Variable types: 0 continuous, 1101 integer (1070 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1101 rows, 40166 columns, 119236 nonzeros


Root relaxation: objective 3.000000e+01, 1304 iterations, 0.40 seconds (0.35 work units)

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

     0     0   30.00000    0  280    6.00000   30.00000   400%     -    4s
H    0     0                       8.0000000   30.00000   275%     -    4s
     0     0   30.00000    0  320    8.00000   30.00000   275%     -    6s
     0     0   30.00000    0  318    8.00000   30.00000   275%     -    7s
H    0     0                       9.0000000   30.00000   233%     -   23s
     0     0   30.00000    0  282    9.00000   30.00000   233%     -   24s
     0     0   30.00000    0  357    9.00000   30.00000   233%     -   24s
     0     0   30.00000    0  382    9.00000   30.00000   233%     -   34s
     0     0   30.00000    0  372    9.00000   30.00000   233%     -   34s
     0     0   30.00000    0  415    9.00000   30.00000   233%     -   41s
     0     0   30.00000    0  402    9.00000   30.00000   233%     -   42s
     0     0   30.00000    0  348    9.00000   30.00000   233%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 24
  MIR: 85
  StrongCG: 1
  GUB cover: 2
  Zero half: 24
  RLT: 78
  BQP: 4

Explored 1 nodes (40056 simplex iterations) in 50.05 seconds (34.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 6 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.000000000000e+01, gap 233.3333%

Wrote result file './lp_solutions/grafo2100.29.sol'

