
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:07:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4005.39.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/grafo4005.39.lp
Reading time = 0.21 seconds
: 127915 rows, 2012 columns, 385330 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 127915 rows, 2012 columns and 385330 nonzeros
Model fingerprint: 0xa8d514a0
Variable types: 42 continuous, 1970 integer (1970 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 48137 rows and 8 columns
Presolve time: 0.79s
Presolved: 79778 rows, 2004 columns, 241176 nonzeros
Variable types: 0 continuous, 2004 integer (1962 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1995 rows, 81773 columns, 243180 nonzeros


Root relaxation: objective 5.100000e+01, 3131 iterations, 1.23 seconds (1.62 work units)
Total elapsed time = 9.51s (DegenMoves)
Total elapsed time = 10.96s (DegenMoves)

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

     0     0   51.00000    0  579    4.00000   51.00000  1175%     -   12s
H    0     0                       5.0000000   51.00000   920%     -   12s
H    0     0                       6.0000000   51.00000   750%     -   12s
     0     0   51.00000    0  881    6.00000   51.00000   750%     -   25s
H    0     0                       7.0000000   51.00000   629%     -   26s
     0     0   51.00000    0  819    7.00000   51.00000   629%     -   26s
     0     0   51.00000    0  842    7.00000   51.00000   629%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 19
  Clique: 29
  MIR: 144
  Zero half: 111
  RLT: 94
  BQP: 2

Explored 1 nodes (37599 simplex iterations) in 50.03 seconds (56.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 5 4 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.100000000000e+01, gap 628.5714%

Wrote result file './lp_solutions/grafo4005.39.sol'

