
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:52:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3848.38.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/grafo3848.38.lp
Reading time = 0.10 seconds
: 64400 rows, 1964 columns, 194826 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 64400 rows, 1964 columns and 194826 nonzeros
Model fingerprint: 0x3478cab7
Variable types: 44 continuous, 1920 integer (1920 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 12191 rows and 23 columns
Presolve time: 0.44s
Presolved: 52209 rows, 1941 columns, 158686 nonzeros
Variable types: 0 continuous, 1941 integer (1897 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1941 rows, 54150 columns, 160627 nonzeros


Root relaxation: objective 4.200000e+01, 1829 iterations, 0.32 seconds (0.32 work units)

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

     0     0   42.00000    0  460   11.00000   42.00000   282%     -    4s
H    0     0                      13.0000000   42.00000   223%     -    4s
     0     0   42.00000    0  716   13.00000   42.00000   223%     -   13s
     0     0   42.00000    0  658   13.00000   42.00000   223%     -   14s
H    0     0                      14.0000000   42.00000   200%     -   32s
H    0     0                      15.0000000   42.00000   180%     -   32s
     0     0   42.00000    0  677   15.00000   42.00000   180%     -   32s
     0     0   42.00000    0  688   15.00000   42.00000   180%     -   33s
     0     0   42.00000    0  822   15.00000   42.00000   180%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 25
  Clique: 8
  MIR: 134
  StrongCG: 4
  GUB cover: 2
  Zero half: 56
  RLT: 77
  BQP: 2

Explored 1 nodes (46191 simplex iterations) in 50.07 seconds (41.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 2

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo3848.38.sol'

