
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:25:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6485.40.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/grafo6485.40.lp
Reading time = 0.10 seconds
: 64039 rows, 2091 columns, 193829 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 64039 rows, 2091 columns and 193829 nonzeros
Model fingerprint: 0xb217da3d
Variable types: 46 continuous, 2045 integer (2045 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 1.0000000
Presolve removed 8471 rows and 42 columns
Presolve time: 0.41s
Presolved: 55568 rows, 2049 columns, 168910 nonzeros
Variable types: 0 continuous, 2049 integer (2003 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2046 rows, 57614 columns, 170959 nonzeros


Root relaxation: objective 3.800000e+01, 27558 iterations, 4.46 seconds (3.78 work units)
Total elapsed time = 5.10s (DegenMoves)
Total elapsed time = 11.25s (DegenMoves)
Total elapsed time = 21.50s (DegenMoves)

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

     0     0   38.00000    0  418    8.00000   38.00000   375%     -   23s
H    0     0                      11.0000000   38.00000   245%     -   23s
     0     0   38.00000    0  515   11.00000   38.00000   245%     -   28s
     0     0   38.00000    0  557   11.00000   38.00000   245%     -   28s
     0     0   38.00000    0  306   11.00000   38.00000   245%     -   50s

Cutting planes:
  Gomory: 14
  Lift-and-project: 32
  Cover: 14
  Clique: 5
  MIR: 138
  GUB cover: 2
  Zero half: 18
  RLT: 40
  BQP: 2

Explored 1 nodes (80637 simplex iterations) in 50.04 seconds (53.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.800000000000e+01, gap 245.4545%

Wrote result file './lp_solutions/grafo6485.40.sol'

