
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:22:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6450.37.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/grafo6450.37.lp
Reading time = 0.13 seconds
: 77682 rows, 1573 columns, 234101 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 77682 rows, 1573 columns and 234101 nonzeros
Model fingerprint: 0x7fe3bffe
Variable types: 36 continuous, 1537 integer (1537 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 26663 rows and 25 columns
Presolve time: 0.54s
Presolved: 51019 rows, 1548 columns, 154389 nonzeros
Variable types: 0 continuous, 1548 integer (1512 binary)
Root relaxation presolved: 1548 rows, 52567 columns, 155937 nonzeros


Root relaxation: objective 3.600000e+01, 2245 iterations, 0.50 seconds (0.57 work units)
Total elapsed time = 7.66s (DegenMoves)

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

     0     0   36.00000    0  373          -   36.00000      -     -    8s
H    0     0                       6.0000000   36.00000   500%     -    8s
H    0     0                       7.0000000   36.00000   414%     -    8s
H    0     0                       8.0000000   36.00000   350%     -   13s
     0     0   36.00000    0  579    8.00000   36.00000   350%     -   14s
     0     0   36.00000    0  510    8.00000   36.00000   350%     -   15s
H    0     0                       9.0000000   36.00000   300%     -   17s
H    0     0                      10.0000000   36.00000   260%     -   25s
     0     0   36.00000    0  388   10.00000   36.00000   260%     -   25s
H    0     0                      12.0000000   36.00000   200%     -   25s
     0     0   36.00000    0  340   12.00000   36.00000   200%     -   25s
     0     0   36.00000    0  445   12.00000   36.00000   200%     -   32s
     0     0   36.00000    0  419   12.00000   36.00000   200%     -   33s
H    0     0                      13.0000000   36.00000   177%     -   43s
     0     0   35.50000    0  427   13.00000   35.50000   173%     -   44s
     0     0   35.50000    0  442   13.00000   35.50000   173%     -   45s
     0     0   35.50000    0  483   13.00000   35.50000   173%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 22
  Clique: 21
  MIR: 116
  StrongCG: 1
  GUB cover: 1
  Zero half: 97
  RLT: 63
  BQP: 1
  PSD: 1

Explored 1 nodes (52811 simplex iterations) in 50.06 seconds (49.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 10 ... 6

Time limit reached
Best objective 1.300000000000e+01, best bound 3.500000000000e+01, gap 169.2308%

Wrote result file './lp_solutions/grafo6450.37.sol'

