
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:54:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4048.38.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/grafo4048.38.lp
Reading time = 0.11 seconds
: 69622 rows, 1724 columns, 210134 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 69622 rows, 1724 columns and 210134 nonzeros
Model fingerprint: 0x35b3c240
Variable types: 39 continuous, 1685 integer (1685 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 19919 rows and 22 columns
Presolve time: 0.46s
Presolved: 49703 rows, 1702 columns, 150631 nonzeros
Variable types: 0 continuous, 1702 integer (1663 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1702 rows, 51405 columns, 152333 nonzeros


Root relaxation: objective 3.600000e+01, 3004 iterations, 0.88 seconds (1.07 work units)

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

     0     0   36.00000    0  369    6.00000   36.00000   500%     -    4s
H    0     0                       8.0000000   36.00000   350%     -    5s
     0     0   36.00000    0  684    8.00000   36.00000   350%     -   11s
     0     0   36.00000    0  681    8.00000   36.00000   350%     -   11s
H    0     0                       9.0000000   36.00000   300%     -   24s
     0     0   35.00000    0  462    9.00000   35.00000   289%     -   25s
     0     0   35.00000    0  505    9.00000   35.00000   289%     -   27s
H    0     0                      10.0000000   35.00000   250%     -   43s
     0     0   35.00000    0  486   10.00000   35.00000   250%     -   43s
     0     0   35.00000    0  461   10.00000   35.00000   250%     -   44s
     0     0   35.00000    0  518   10.00000   35.00000   250%     -   50s

Cutting planes:
  Cover: 19
  Clique: 17
  MIR: 111
  GUB cover: 1
  Zero half: 21
  RLT: 56
  BQP: 1

Explored 1 nodes (55122 simplex iterations) in 50.06 seconds (49.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 8 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.500000000000e+01, gap 250.0000%

Wrote result file './lp_solutions/grafo4048.38.sol'

