
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:00:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3326.42.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/grafo3326.42.lp
Reading time = 0.66 seconds
: 338016 rows, 3063 columns, 1017099 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 338016 rows, 3063 columns and 1017099 nonzeros
Model fingerprint: 0xb6315c0e
Variable types: 57 continuous, 3006 integer (3006 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, 6e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 138475 rows and 8 columns
Presolve time: 2.99s
Presolved: 199541 rows, 3055 columns, 602269 nonzeros
Variable types: 0 continuous, 3055 integer (2998 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3036 rows, 202577 columns, 605324 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5453    1.5756386e+02   0.000000e+00   7.819386e+05      5s
   24024    8.8997545e+01   0.000000e+00   1.140295e+05     11s
   36824    6.4871195e+01   0.000000e+00   1.924259e+05     15s
   50529    6.3794237e+01   0.000000e+00   2.417387e+05     20s
   63563    6.2754293e+01   0.000000e+00   5.902190e+04     25s
   77404    6.2731405e+01   0.000000e+00   1.794514e+04     30s
   89614    6.2719648e+01   0.000000e+00   2.622003e+04     35s
  101824    6.2712743e+01   0.000000e+00   5.155458e+04     40s
  114848    6.2708657e+01   0.000000e+00   1.170906e+03     45s

Root relaxation: time limit, 127006 iterations, 46.64 seconds (27.40 work units)

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

     0     0          -    0         8.00000  405.00000  4962%     -   50s

Explored 1 nodes (127006 simplex iterations) in 50.04 seconds (30.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.050000000000e+02, gap 4962.5000%

Wrote result file './lp_solutions/grafo3326.42.sol'

