
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:56:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1349.31.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/grafo1349.31.lp
Reading time = 0.36 seconds
: 220290 rows, 1505 columns, 662106 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 220290 rows, 1505 columns and 662106 nonzeros
Model fingerprint: 0x8faca615
Variable types: 37 continuous, 1468 integer (1468 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 104741 rows and 12 columns
Presolve time: 1.76s
Presolved: 115549 rows, 1493 columns, 348172 nonzeros
Variable types: 0 continuous, 1493 integer (1456 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1484 rows, 117033 columns, 349665 nonzeros


Root relaxation: objective 3.600000e+01, 2090 iterations, 1.15 seconds (1.44 work units)
Total elapsed time = 10.87s (DegenMoves)

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

     0     0   36.00000    0  515    7.00000   36.00000   414%     -   11s
     0     0   36.00000    0  579    7.00000   36.00000   414%     -   21s
     0     0   36.00000    0  573    7.00000   36.00000   414%     -   22s
     0     0   36.00000    0  547    7.00000   36.00000   414%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 31
  Cover: 14
  Clique: 24
  MIR: 75
  GUB cover: 1
  Zero half: 43
  RLT: 57
  BQP: 3

Explored 1 nodes (22603 simplex iterations) in 50.04 seconds (56.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 1 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.600000000000e+01, gap 414.2857%

Wrote result file './lp_solutions/grafo1349.31.sol'

