
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:28:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11398.37.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/grafo11398.37.lp
Reading time = 0.10 seconds
: 60657 rows, 1641 columns, 183179 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 60657 rows, 1641 columns and 183179 nonzeros
Model fingerprint: 0xae127a2e
Variable types: 37 continuous, 1604 integer (1604 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 16196 rows and 33 columns
Presolve time: 0.45s
Presolved: 44461 rows, 1608 columns, 135006 nonzeros
Variable types: 0 continuous, 1608 integer (1571 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 28921 rows, 17148 columns, 103926 nonzeros


Root relaxation: objective 2.800000e+01, 1324 iterations, 0.44 seconds (0.45 work units)

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

     0     0   28.00000    0  272   10.00000   28.00000   180%     -    2s
H    0     0                      14.0000000   28.00000   100%     -    2s
     0     0   28.00000    0  492   14.00000   28.00000   100%     -    5s
     0     0   28.00000    0  454   14.00000   28.00000   100%     -    5s
     0     0   28.00000    0  386   14.00000   28.00000   100%     -   16s
     0     0   28.00000    0  381   14.00000   28.00000   100%     -   17s
     0     0   28.00000    0  387   14.00000   28.00000   100%     -   27s
     0     0   28.00000    0  379   14.00000   28.00000   100%     -   27s
H    0     0                      15.0000000   28.00000  86.7%     -   45s
     0     0   28.00000    0  513   15.00000   28.00000  86.7%     -   45s
     0     0   28.00000    0  442   15.00000   28.00000  86.7%     -   45s
     0     0   28.00000    0  519   15.00000   28.00000  86.7%     -   50s

Cutting planes:
  Cover: 26
  Clique: 14
  MIR: 73
  Zero half: 24
  RLT: 55
  BQP: 1
  PSD: 1

Explored 1 nodes (59598 simplex iterations) in 50.05 seconds (50.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 10 4 

Time limit reached
Best objective 1.500000000000e+01, best bound 2.800000000000e+01, gap 86.6667%

Wrote result file './lp_solutions/grafo11398.37.sol'

