
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:41:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7705.42.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/grafo7705.42.lp
Reading time = 0.14 seconds
: 87581 rows, 2121 columns, 264352 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 87581 rows, 2121 columns and 264352 nonzeros
Model fingerprint: 0xaeb32cbc
Variable types: 44 continuous, 2077 integer (2077 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 22126 rows and 24 columns
Presolve time: 0.60s
Presolved: 65455 rows, 2097 columns, 198346 nonzeros
Variable types: 0 continuous, 2097 integer (2053 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2094 rows, 67549 columns, 200443 nonzeros


Root relaxation: objective 4.500000e+01, 25492 iterations, 3.83 seconds (3.55 work units)
Total elapsed time = 10.14s (DegenMoves)

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

     0     0   45.00000    0  546    9.00000   45.00000   400%     -   12s
H    0     0                      10.0000000   45.00000   350%     -   12s
     0     0   45.00000    0  775   10.00000   45.00000   350%     -   25s
     0     0   45.00000    0  741   10.00000   45.00000   350%     -   28s
     0     0   45.00000    0  851   10.00000   45.00000   350%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 34
  Cover: 4
  Clique: 15
  MIR: 126
  GUB cover: 1
  Zero half: 25
  RLT: 47
  BQP: 5

Explored 1 nodes (58831 simplex iterations) in 50.05 seconds (44.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo7705.42.sol'

