
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:54:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2104.36.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/grafo2104.36.lp
Reading time = 0.09 seconds
: 55804 rows, 1760 columns, 168807 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 55804 rows, 1760 columns and 168807 nonzeros
Model fingerprint: 0x2216d07d
Variable types: 40 continuous, 1720 integer (1720 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 16435 rows and 60 columns
Presolve time: 0.35s
Presolved: 39369 rows, 1700 columns, 119890 nonzeros
Variable types: 0 continuous, 1700 integer (1660 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 22349 rows, 18720 columns, 85850 nonzeros


Root relaxation: objective 4.100000e+01, 4606 iterations, 2.45 seconds (2.17 work units)
Total elapsed time = 6.02s (DegenMoves)

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

     0     0   41.00000    0  554   10.00000   41.00000   310%     -    8s
H    0     0                      11.0000000   41.00000   273%     -    8s
H    0     0                      13.0000000   41.00000   215%     -   10s
     0     0   41.00000    0  672   13.00000   41.00000   215%     -   14s
     0     0   41.00000    0  655   13.00000   41.00000   215%     -   15s
H    0     0                      14.0000000   41.00000   193%     -   29s
H    0     0                      15.0000000   41.00000   173%     -   29s
     0     0   41.00000    0  453   15.00000   41.00000   173%     -   30s
     0     0   41.00000    0  399   15.00000   41.00000   173%     -   30s
     0     0   41.00000    0  553   15.00000   41.00000   173%     -   38s
     0     0   41.00000    0  571   15.00000   41.00000   173%     -   39s
     0     0   41.00000    0  628   15.00000   41.00000   173%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 5
  MIR: 118
  GUB cover: 1
  Zero half: 78
  RLT: 48
  BQP: 1

Explored 1 nodes (64000 simplex iterations) in 50.06 seconds (45.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 10

Time limit reached
Best objective 1.500000000000e+01, best bound 4.100000000000e+01, gap 173.3333%

Wrote result file './lp_solutions/grafo2104.36.sol'

