
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 00:42:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo947.15.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/grafo947.15.lp
Reading time = 0.38 seconds
: 235958 rows, 682 columns, 708402 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 235958 rows, 682 columns and 708402 nonzeros
Model fingerprint: 0xb17a9075
Variable types: 23 continuous, 659 integer (659 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 1.0000000
Presolve removed 123626 rows and 3 columns
Presolve time: 1.75s
Presolved: 112332 rows, 679 columns, 337634 nonzeros
Variable types: 0 continuous, 679 integer (656 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 675 rows, 113007 columns, 338313 nonzeros


Starting sifting (using dual simplex for sub-problems)...

    Iter     Pivots    Primal Obj      Dual Obj        Time
       0        145    -infinity     -1.0000000e+00      2s
       1        921  -2.2275000e+08  -1.5850000e+01      2s
       2       1687  -2.5003800e+05  -1.6578619e+01      2s
       3       2136  -3.6000000e+01  -1.8065919e+01      2s
       4       2882  -3.4000000e+01  -1.9480523e+01      2s

Sifting complete


Root relaxation: objective 3.000000e+01, 3240 iterations, 0.53 seconds (0.51 work units)
Total elapsed time = 6.24s (DegenMoves)

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

     0     0   30.00000    0  334    5.00000   30.00000   500%     -   10s
     0     0   30.00000    0  388    5.00000   30.00000   500%     -   16s
     0     0   30.00000    0  380    5.00000   30.00000   500%     -   17s
     0     0   30.00000    0  276    5.00000   30.00000   500%     -   26s
     0     0   30.00000    0  257    5.00000   30.00000   500%     -   28s
     0     0   30.00000    0  339    5.00000   30.00000   500%     -   37s
     0     0   30.00000    0  333    5.00000   30.00000   500%     -   38s
     0     0   30.00000    0  302    5.00000   30.00000   500%     -   48s
     0     0   30.00000    0  265    5.00000   30.00000   500%     -   50s

Cutting planes:
  Clique: 43
  MIR: 14
  RLT: 19
  BQP: 4

Explored 1 nodes (22932 simplex iterations) in 50.04 seconds (61.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 5 1 

Time limit reached
Best objective 5.000000000000e+00, best bound 3.000000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo947.15.sol'

