
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 02:18:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo778.15.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/grafo778.15.lp
Reading time = 0.01 seconds
: 2443 rows, 283 columns, 7432 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 2443 rows, 283 columns and 7432 nonzeros
Model fingerprint: 0x5788b3b1
Variable types: 16 continuous, 267 integer (267 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 -0.0000000
Presolve removed 306 rows and 21 columns
Presolve time: 0.02s
Presolved: 2137 rows, 262 columns, 6661 nonzeros
Variable types: 0 continuous, 262 integer (246 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 7.000000e+00, 180 iterations, 0.02 seconds (0.01 work units)

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

     0     0    7.00000    0   73    3.00000    7.00000   133%     -    0s
H    0     0                       4.0000000    7.00000  75.0%     -    0s
     0     0    7.00000    0   99    4.00000    7.00000  75.0%     -    0s
H    0     0                       6.0000000    7.00000  16.7%     -    0s
     0     0    7.00000    0   42    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   49    6.00000    7.00000  16.7%     -    0s
H    0     0                       7.0000000    7.00000  0.00%     -    0s
     0     0    7.00000    0   49    7.00000    7.00000  0.00%     -    0s

Cutting planes:
  Lift-and-project: 1
  Cover: 1
  MIR: 4
  RLT: 4

Explored 1 nodes (2077 simplex iterations) in 0.50 seconds (0.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 7 6 4 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo778.15.sol'

