
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:21:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7659.34.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/grafo7659.34.lp
Reading time = 0.15 seconds
: 92989 rows, 1756 columns, 280452 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 92989 rows, 1756 columns and 280452 nonzeros
Model fingerprint: 0x8a0d5de3
Variable types: 41 continuous, 1715 integer (1715 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]
Presolve removed 33570 rows and 10 columns
Presolve time: 0.57s
Presolved: 59419 rows, 1746 columns, 180076 nonzeros
Variable types: 0 continuous, 1746 integer (1705 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1743 rows, 61162 columns, 181822 nonzeros


Root relaxation: objective 4.700000e+01, 2265 iterations, 0.67 seconds (0.64 work units)
Total elapsed time = 7.45s (DegenMoves)

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

     0     0   47.00000    0  543    6.00000   47.00000   683%     -    9s
H    0     0                       7.0000000   47.00000   571%     -    9s
H    0     0                       8.0000000   47.00000   487%     -   17s
     0     0   47.00000    0  692    8.00000   47.00000   487%     -   17s
     0     0   47.00000    0  680    8.00000   47.00000   487%     -   19s
H    0     0                       9.0000000   47.00000   422%     -   45s
     0     0   47.00000    0  623    9.00000   47.00000   422%     -   45s
     0     0   47.00000    0  589    9.00000   47.00000   422%     -   46s
     0     0          -    0         9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 20
  Clique: 22
  MIR: 138
  StrongCG: 1
  Zero half: 76
  RLT: 87
  BQP: 2

Explored 1 nodes (37886 simplex iterations) in 50.05 seconds (46.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo7659.34.sol'

