
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:05:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3891.39.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/grafo3891.39.lp
Reading time = 0.24 seconds
: 152258 rows, 1766 columns, 457956 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 152258 rows, 1766 columns and 457956 nonzeros
Model fingerprint: 0x7d743801
Variable types: 37 continuous, 1729 integer (1729 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 64659 rows and 4 columns
Presolve time: 1.00s
Presolved: 87599 rows, 1762 columns, 264204 nonzeros
Variable types: 0 continuous, 1762 integer (1725 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1748 rows, 89347 columns, 265966 nonzeros


Root relaxation: objective 4.400000e+01, 2751 iterations, 1.17 seconds (1.56 work units)
Total elapsed time = 15.23s (DegenMoves)

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

     0     0   44.00000    0  557    8.00000   44.00000   450%     -   18s
H    0     0                       9.0000000   44.00000   389%     -   18s
     0     0   44.00000    0  787    9.00000   44.00000   389%     -   29s
H    0     0                      10.0000000   44.00000   340%     -   30s
     0     0   44.00000    0  722   10.00000   44.00000   340%     -   30s
     0     0   44.00000    0  604   10.00000   44.00000   340%     -   48s
     0     0   44.00000    0  571   10.00000   44.00000   340%     -   49s

Cutting planes:
  Cover: 48
  Clique: 33
  MIR: 131
  StrongCG: 1
  RLT: 21
  BQP: 1

Explored 1 nodes (33933 simplex iterations) in 50.03 seconds (59.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo3891.39.sol'

