
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:08:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3012.32.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/grafo3012.32.lp
Reading time = 0.17 seconds
: 101253 rows, 1193 columns, 304540 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 101253 rows, 1193 columns and 304540 nonzeros
Model fingerprint: 0x0d24e81c
Variable types: 28 continuous, 1165 integer (1165 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 45739 rows and 2 columns
Presolve time: 0.64s
Presolved: 55514 rows, 1191 columns, 167430 nonzeros
Variable types: 0 continuous, 1191 integer (1163 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1189 rows, 56703 columns, 168621 nonzeros


Root relaxation: objective 3.200000e+01, 1491 iterations, 0.47 seconds (0.59 work units)

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

     0     0   32.00000    0  241    7.00000   32.00000   357%     -    3s
H    0     0                       9.0000000   32.00000   256%     -    3s
     0     0   32.00000    0  436    9.00000   32.00000   256%     -    6s
H    0     0                      10.0000000   32.00000   220%     -    7s
     0     0   32.00000    0  423   10.00000   32.00000   220%     -    7s
H    0     0                      11.0000000   32.00000   191%     -   24s
     0     0   32.00000    0  226   11.00000   32.00000   191%     -   24s
     0     0   32.00000    0  269   11.00000   32.00000   191%     -   25s
H    0     0                      12.0000000   31.66667   164%     -   32s
     0     0   31.66667    0  241   12.00000   31.66667   164%     -   32s
     0     0   31.66667    0  232   12.00000   31.66667   164%     -   33s
H    0     0                      13.0000000   31.50000   142%     -   42s
     0     0   31.50000    0  281   13.00000   31.50000   142%     -   42s
     0     0   31.50000    0  279   13.00000   31.50000   142%     -   42s
     0     0   31.50000    0  235   13.00000   31.50000   142%     -   47s
     0     0   31.33333    0  233   13.00000   31.33333   141%     -   48s
     0     0          -    0        13.00000   31.33333   141%     -   50s

Cutting planes:
  Cover: 33
  Clique: 18
  MIR: 111
  StrongCG: 1
  Inf proof: 1
  Zero half: 27
  RLT: 35

Explored 1 nodes (37630 simplex iterations) in 50.05 seconds (46.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.100000000000e+01, gap 138.4615%

Wrote result file './lp_solutions/grafo3012.32.sol'

