
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:59:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6884.39.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/grafo6884.39.lp
Reading time = 0.15 seconds
: 94814 rows, 1976 columns, 286012 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 94814 rows, 1976 columns and 286012 nonzeros
Model fingerprint: 0xc16163a1
Variable types: 42 continuous, 1934 integer (1934 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 4.0000000
Presolve removed 29731 rows and 15 columns
Presolve time: 0.75s
Presolved: 65083 rows, 1961 columns, 197185 nonzeros
Variable types: 0 continuous, 1961 integer (1919 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1958 rows, 67041 columns, 199146 nonzeros


Root relaxation: objective 4.200000e+01, 2610 iterations, 0.62 seconds (0.72 work units)
Total elapsed time = 5.73s (DegenMoves)

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

     0     0   42.00000    0  469    9.00000   42.00000   367%     -    6s
H    0     0                      10.0000000   42.00000   320%     -    6s
H    0     0                      11.0000000   42.00000   282%     -    8s
H    0     0                      12.0000000   42.00000   250%     -    8s
     0     0   42.00000    0  694   12.00000   42.00000   250%     -   16s
     0     0   42.00000    0  636   12.00000   42.00000   250%     -   16s
H    0     0                      14.0000000   41.00000   193%     -   32s
     0     0   41.00000    0  320   14.00000   41.00000   193%     -   32s
     0     0   41.00000    0  341   14.00000   41.00000   193%     -   33s
     0     0   41.00000    0  690   14.00000   41.00000   193%     -   50s

Cutting planes:
  Cover: 46
  Clique: 21
  MIR: 152
  GUB cover: 4
  Zero half: 78
  RLT: 76
  BQP: 4

Explored 1 nodes (42848 simplex iterations) in 50.07 seconds (44.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 12 11 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 4.100000000000e+01, gap 192.8571%

Wrote result file './lp_solutions/grafo6884.39.sol'

