
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:02:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10751.36.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/grafo10751.36.lp
Reading time = 0.13 seconds
: 72805 rows, 1869 columns, 220013 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 72805 rows, 1869 columns and 220013 nonzeros
Model fingerprint: 0xb75ee3a8
Variable types: 43 continuous, 1826 integer (1826 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 20809 rows and 23 columns
Presolve time: 0.54s
Presolved: 51996 rows, 1846 columns, 158038 nonzeros
Variable types: 0 continuous, 1846 integer (1803 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1846 rows, 53842 columns, 159884 nonzeros


Root relaxation: objective 4.400000e+01, 1454 iterations, 0.31 seconds (0.27 work units)

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

     0     0   44.00000    0  298    8.00000   44.00000   450%     -    3s
H    0     0                       9.0000000   44.00000   389%     -    3s
     0     0   44.00000    0  616    9.00000   44.00000   389%     -   11s
     0     0   44.00000    0  589    9.00000   44.00000   389%     -   11s
H    0     0                      11.0000000   44.00000   300%     -   50s
H    0     0                      13.0000000   44.00000   238%     -   50s
H    0     0                      15.0000000   44.00000   193%     -   50s
H    0     0                      16.0000000   44.00000   175%     -   50s
H    0     0                      17.0000000   44.00000   159%     -   50s
     0     0   44.00000    0  489   17.00000   44.00000   159%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 1
  Clique: 7
  MIR: 28
  StrongCG: 1
  Zero half: 1
  RLT: 22

Explored 1 nodes (39417 simplex iterations) in 50.12 seconds (41.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 16 15 ... 8

Time limit reached
Best objective 1.700000000000e+01, best bound 4.400000000000e+01, gap 158.8235%

Wrote result file './lp_solutions/grafo10751.36.sol'

