
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:52:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo296.28.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/grafo296.28.lp
Reading time = 0.10 seconds
: 44739 rows, 1185 columns, 135117 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 44739 rows, 1185 columns and 135117 nonzeros
Model fingerprint: 0xd852b315
Variable types: 33 continuous, 1152 integer (1152 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 15377 rows and 16 columns
Presolve time: 0.40s
Presolved: 29362 rows, 1169 columns, 89316 nonzeros
Variable types: 0 continuous, 1169 integer (1136 binary)
Root relaxation presolved: 20630 rows, 9901 columns, 71852 nonzeros


Root relaxation: objective 3.000000e+01, 1313 iterations, 0.45 seconds (0.34 work units)

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

     0     0   30.00000    0  317          -   30.00000      -     -    2s
H    0     0                       4.0000000   30.00000   650%     -    2s
H    0     0                       6.0000000   30.00000   400%     -    2s
     0     0   30.00000    0  446    6.00000   30.00000   400%     -    5s
     0     0   30.00000    0  436    6.00000   30.00000   400%     -    5s
H    0     0                       8.0000000   30.00000   275%     -   23s
     0     0   30.00000    0  235    8.00000   30.00000   275%     -   23s
     0     0   30.00000    0  236    8.00000   30.00000   275%     -   23s
     0     0   30.00000    0  252    8.00000   30.00000   275%     -   30s
     0     0   30.00000    0  320    8.00000   30.00000   275%     -   30s
     0     0   30.00000    0  205    8.00000   30.00000   275%     -   35s
     0     0   30.00000    0  201    8.00000   30.00000   275%     -   35s
     0     0   30.00000    0  290    8.00000   30.00000   275%     -   40s
     0     0   30.00000    0  303    8.00000   30.00000   275%     -   40s
     0     0   30.00000    0  232    8.00000   30.00000   275%     -   46s
H    0     0                      10.0000000   30.00000   200%     -   46s
     0     0   30.00000    0  321   10.00000   30.00000   200%     -   46s
     0     0   30.00000    0  420   10.00000   30.00000   200%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 22
  Clique: 20
  MIR: 107
  StrongCG: 2
  GUB cover: 1
  Zero half: 29
  RLT: 50

Explored 1 nodes (57673 simplex iterations) in 50.03 seconds (33.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 8 6 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.000000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo296.28.sol'

