
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:56:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3312.39.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/grafo3312.39.lp
Reading time = 0.15 seconds
: 91521 rows, 1958 columns, 276105 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 91521 rows, 1958 columns and 276105 nonzeros
Model fingerprint: 0x03379a87
Variable types: 43 continuous, 1915 integer (1915 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 27102 rows and 27 columns
Presolve time: 0.69s
Presolved: 64419 rows, 1931 columns, 195124 nonzeros
Variable types: 0 continuous, 1931 integer (1888 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1931 rows, 66350 columns, 197055 nonzeros


Root relaxation: objective 4.200000e+01, 2331 iterations, 0.55 seconds (0.64 work units)
Total elapsed time = 7.06s (DegenMoves)

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

     0     0   42.00000    0  518    7.00000   42.00000   500%     -    7s
H    0     0                       9.0000000   42.00000   367%     -    7s
     0     0   42.00000    0  692    9.00000   42.00000   367%     -   16s
H    0     0                      11.0000000   42.00000   282%     -   19s
     0     0   42.00000    0  668   11.00000   42.00000   282%     -   19s
     0     0   42.00000    0  658   11.00000   42.00000   282%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 39
  Cover: 7
  Clique: 30
  MIR: 114
  Zero half: 14
  RLT: 56
  BQP: 1

Explored 1 nodes (37769 simplex iterations) in 50.08 seconds (49.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.200000000000e+01, gap 281.8182%

Wrote result file './lp_solutions/grafo3312.39.sol'

