
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:33:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo450.35.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/grafo450.35.lp
Reading time = 0.24 seconds
: 144410 rows, 1790 columns, 434765 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 144410 rows, 1790 columns and 434765 nonzeros
Model fingerprint: 0x08b46243
Variable types: 42 continuous, 1748 integer (1748 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 58254 rows and 27 columns
Presolve time: 1.11s
Presolved: 86156 rows, 1763 columns, 260268 nonzeros
Variable types: 0 continuous, 1763 integer (1721 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1763 rows, 87919 columns, 262031 nonzeros


Root relaxation: objective 3.600000e+01, 2033 iterations, 0.69 seconds (0.85 work units)
Total elapsed time = 7.60s (DegenMoves)

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

     0     0   36.00000    0  389    8.00000   36.00000   350%     -    9s
     0     0   36.00000    0  710    8.00000   36.00000   350%     -   17s
     0     0   36.00000    0  703    8.00000   36.00000   350%     -   19s
     0     0   36.00000    0  526    8.00000   36.00000   350%     -   40s
H    0     0                      10.0000000   36.00000   260%     -   40s
     0     0   36.00000    0  435   10.00000   36.00000   260%     -   41s
     0     0   36.00000    0  596   10.00000   36.00000   260%     -   50s

Cutting planes:
  Cover: 30
  Clique: 31
  MIR: 113
  GUB cover: 3
  Zero half: 40
  RLT: 55

Explored 1 nodes (33843 simplex iterations) in 50.03 seconds (58.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.600000000000e+01, gap 260.0000%

Wrote result file './lp_solutions/grafo450.35.sol'

