
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:43:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3134.37.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/grafo3134.37.lp
Reading time = 0.16 seconds
: 94331 rows, 1703 columns, 284279 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 94331 rows, 1703 columns and 284279 nonzeros
Model fingerprint: 0x33c53db0
Variable types: 38 continuous, 1665 integer (1665 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 3.0000000
Presolve removed 33786 rows and 23 columns
Presolve time: 0.70s
Presolved: 60545 rows, 1680 columns, 183221 nonzeros
Variable types: 0 continuous, 1680 integer (1642 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1680 rows, 62225 columns, 184901 nonzeros


Root relaxation: objective 3.400000e+01, 2070 iterations, 0.53 seconds (0.64 work units)
Total elapsed time = 6.60s (DegenMoves)

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

     0     0   34.00000    0  501    9.00000   34.00000   278%     -    7s
H    0     0                      10.0000000   34.00000   240%     -    7s
     0     0   34.00000    0  667   10.00000   34.00000   240%     -   17s
     0     0   34.00000    0  694   10.00000   34.00000   240%     -   19s
H    0     0                      11.0000000   34.00000   209%     -   23s
     0     0   33.00000    0  531   11.00000   33.00000   200%     -   43s
     0     0   33.00000    0  509   11.00000   33.00000   200%     -   44s
     0     0   33.00000    0  531   11.00000   33.00000   200%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 13
  Clique: 16
  MIR: 60
  Zero half: 140
  RLT: 43

Explored 1 nodes (39263 simplex iterations) in 50.07 seconds (48.00 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.300000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo3134.37.sol'

