
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:06:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1277.34.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/grafo1277.34.lp
Reading time = 0.11 seconds
: 69347 rows, 1844 columns, 209684 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 69347 rows, 1844 columns and 209684 nonzeros
Model fingerprint: 0x1067f9fb
Variable types: 44 continuous, 1800 integer (1800 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 17819 rows and 28 columns
Presolve time: 0.50s
Presolved: 51528 rows, 1816 columns, 156667 nonzeros
Variable types: 0 continuous, 1816 integer (1772 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1816 rows, 53344 columns, 158483 nonzeros


Root relaxation: objective 4.300000e+01, 2180 iterations, 0.49 seconds (0.52 work units)
Total elapsed time = 6.18s (DegenMoves)

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

     0     0   43.00000    0  531    7.00000   43.00000   514%     -    6s
H    0     0                       8.0000000   43.00000   438%     -    6s
H    0     0                       9.0000000   43.00000   378%     -   23s
     0     0   43.00000    0  936    9.00000   43.00000   378%     -   23s
H    0     0                      10.0000000   43.00000   330%     -   23s
     0     0   43.00000    0  848   10.00000   43.00000   330%     -   24s
     0     0   43.00000    0  599   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 8
  Clique: 8
  MIR: 107
  StrongCG: 1
  Zero half: 91
  RLT: 60
  BQP: 3

Explored 1 nodes (40955 simplex iterations) in 50.06 seconds (42.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 8 ... 2

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo1277.34.sol'

