
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:41:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7326.41.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/grafo7326.41.lp
Reading time = 0.12 seconds
: 64427 rows, 2112 columns, 195026 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 64427 rows, 2112 columns and 195026 nonzeros
Model fingerprint: 0x3c51f9ec
Variable types: 44 continuous, 2068 integer (2068 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 12383 rows and 101 columns
Presolve time: 0.49s
Presolved: 52044 rows, 2011 columns, 158190 nonzeros
Variable types: 0 continuous, 2011 integer (1967 binary)
Root relaxation presolved: 28140 rows, 25915 columns, 110382 nonzeros


Root relaxation: objective 3.500000e+01, 2483 iterations, 1.16 seconds (0.73 work units)

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

     0     0   35.00000    0  336          -   35.00000      -     -    2s
H    0     0                      13.0000000   35.00000   169%     -    4s
H    0     0                      14.0000000   35.00000   150%     -    4s
     0     0   35.00000    0  515   14.00000   35.00000   150%     -    9s
     0     0   35.00000    0  523   14.00000   35.00000   150%     -   10s
H    0     0                      15.0000000   35.00000   133%     -   26s
     0     0   35.00000    0  348   15.00000   35.00000   133%     -   26s
     0     0   35.00000    0  353   15.00000   35.00000   133%     -   26s
H    0     0                      16.0000000   35.00000   119%     -   42s
H    0     0                      17.0000000   35.00000   106%     -   42s
     0     0   35.00000    0  359   17.00000   35.00000   106%     -   42s
     0     0   35.00000    0  339   17.00000   35.00000   106%     -   43s
     0     0   35.00000    0  476   17.00000   35.00000   106%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 27
  Clique: 2
  MIR: 96
  StrongCG: 1
  GUB cover: 1
  Inf proof: 1
  Zero half: 53
  RLT: 53
  BQP: 1

Explored 1 nodes (49270 simplex iterations) in 50.07 seconds (32.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 13

Time limit reached
Best objective 1.700000000000e+01, best bound 3.500000000000e+01, gap 105.8824%

Wrote result file './lp_solutions/grafo7326.41.sol'

