
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:27:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3072.27.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/grafo3072.27.lp
Reading time = 0.19 seconds
: 92463 rows, 1171 columns, 278296 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 92463 rows, 1171 columns and 278296 nonzeros
Model fingerprint: 0xaccec61f
Variable types: 31 continuous, 1140 integer (1140 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 43963 rows and 3 columns
Presolve time: 0.66s
Presolved: 48500 rows, 1168 columns, 146719 nonzeros
Variable types: 0 continuous, 1168 integer (1137 binary)
Root relaxation presolved: 1166 rows, 49666 columns, 147887 nonzeros


Root relaxation: objective 3.800000e+01, 1528 iterations, 0.54 seconds (0.46 work units)
Total elapsed time = 5.03s (DegenMoves)

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

     0     0   38.00000    0  270          -   38.00000      -     -    6s
H    0     0                      11.0000000   38.00000   245%     -    6s
     0     0   38.00000    0  461   11.00000   38.00000   245%     -   11s
     0     0   38.00000    0  431   11.00000   38.00000   245%     -   11s
H    0     0                      12.0000000   38.00000   217%     -   23s
     0     0   37.96667    0  452   12.00000   37.96667   216%     -   23s
     0     0   37.96667    0  449   12.00000   37.96667   216%     -   24s
H    0     0                      13.0000000   37.96667   192%     -   47s
     0     0   37.63333    0  280   13.00000   37.63333   189%     -   47s
     0     0   37.63333    0  331   13.00000   37.63333   189%     -   48s
     0     0          -    0        13.00000   37.63333   189%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 38
  Clique: 17
  MIR: 141
  Zero half: 54
  Mod-K: 2
  RLT: 69
  BQP: 5

Explored 1 nodes (31391 simplex iterations) in 50.05 seconds (33.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 11 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo3072.27.sol'

