
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:52:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10845.41.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/grafo10845.41.lp
Reading time = 0.19 seconds
: 112098 rows, 2150 columns, 337986 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 112098 rows, 2150 columns and 337986 nonzeros
Model fingerprint: 0x87a2c942
Variable types: 44 continuous, 2106 integer (2106 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 35970 rows and 26 columns
Presolve time: 0.81s
Presolved: 76128 rows, 2124 columns, 230479 nonzeros
Variable types: 0 continuous, 2124 integer (2080 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2118 rows, 78246 columns, 232603 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25662    4.6779237e+01   0.000000e+00   3.191501e+03      5s
   41245    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   41245    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   41245    4.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.700000e+01, 41245 iterations, 6.99 seconds (6.07 work units)
Total elapsed time = 16.76s (DegenMoves)

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

     0     0   47.00000    0  485    5.00000   47.00000   840%     -   20s
H    0     0                       8.0000000   47.00000   487%     -   20s
     0     0   47.00000    0  791    8.00000   47.00000   487%     -   34s
     0     0   47.00000    0  763    8.00000   47.00000   487%     -   38s
     0     0          -    0         8.00000   47.00000   487%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 31
  Cover: 6
  Clique: 13
  MIR: 106
  StrongCG: 1
  Zero half: 14
  RLT: 49
  BQP: 1

Explored 1 nodes (66803 simplex iterations) in 50.10 seconds (46.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.700000000000e+01, gap 487.5000%

Wrote result file './lp_solutions/grafo10845.41.sol'

