
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:42:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1561.33.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/grafo1561.33.lp
Reading time = 0.16 seconds
: 102018 rows, 1419 columns, 307070 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 102018 rows, 1419 columns and 307070 nonzeros
Model fingerprint: 0x0669d8b4
Variable types: 34 continuous, 1385 integer (1385 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 43425 rows and 11 columns
Presolve time: 0.69s
Presolved: 58593 rows, 1408 columns, 177067 nonzeros
Variable types: 0 continuous, 1408 integer (1374 binary)
Root relaxation presolved: 1408 rows, 60001 columns, 178475 nonzeros


Root relaxation: objective 3.400000e+01, 2344 iterations, 0.73 seconds (0.84 work units)
Total elapsed time = 6.29s (DegenMoves)

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

     0     0   34.00000    0  323          -   34.00000      -     -    8s
H    0     0                       5.0000000   34.00000   580%     -    8s
H    0     0                       6.0000000   34.00000   467%     -    8s
H    0     0                       7.0000000   34.00000   386%     -   13s
     0     0   34.00000    0  532    7.00000   34.00000   386%     -   13s
     0     0   34.00000    0  542    7.00000   34.00000   386%     -   14s
     0     0   34.00000    0  557    7.00000   34.00000   386%     -   39s
     0     0   34.00000    0  545    7.00000   34.00000   386%     -   40s
     0     0          -    0         7.00000   34.00000   386%     -   50s

Cutting planes:
  Cover: 35
  Clique: 47
  MIR: 61
  StrongCG: 1
  Zero half: 44
  RLT: 65
  BQP: 4

Explored 1 nodes (36466 simplex iterations) in 50.06 seconds (49.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.400000000000e+01, gap 385.7143%

Wrote result file './lp_solutions/grafo1561.33.sol'

