
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 16:10:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo163.25.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/grafo163.25.lp
Reading time = 0.09 seconds
: 52255 rows, 1201 columns, 157707 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 52255 rows, 1201 columns and 157707 nonzeros
Model fingerprint: 0xfbba3df1
Variable types: 35 continuous, 1166 integer (1166 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 -0.0000000
Presolve removed 20188 rows and 15 columns
Presolve time: 0.34s
Presolved: 32067 rows, 1186 columns, 97522 nonzeros
Variable types: 0 continuous, 1186 integer (1151 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 23222 rows, 10031 columns, 79832 nonzeros


Root relaxation: objective 4.200000e+01, 3534 iterations, 1.76 seconds (1.91 work units)
Total elapsed time = 12.57s (DegenMoves)
Total elapsed time = 15.24s (DegenMoves)

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

     0     0   42.00000    0  498    8.00000   42.00000   425%     -   17s
     0     0   42.00000    0  644    8.00000   42.00000   425%     -   23s
     0     0   42.00000    0  629    8.00000   42.00000   425%     -   23s
     0     0   42.00000    0  462    8.00000   42.00000   425%     -   34s
H    0     0                       9.0000000   42.00000   367%     -   34s
     0     0   42.00000    0  411    9.00000   42.00000   367%     -   35s
     0     0   42.00000    0  580    9.00000   42.00000   367%     -   47s
     0     0   42.00000    0  567    9.00000   42.00000   367%     -   47s
     0     0          -    0         9.00000   42.00000   367%     -   50s

Cutting planes:
  Cover: 25
  Clique: 22
  MIR: 183
  StrongCG: 1
  GUB cover: 3
  Zero half: 54
  RLT: 80

Explored 1 nodes (65383 simplex iterations) in 50.03 seconds (51.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 -0 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.200000000000e+01, gap 366.6667%

Wrote result file './lp_solutions/grafo163.25.sol'

