
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:27:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6834.46.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/grafo6834.46.lp
Reading time = 0.54 seconds
: 316622 rows, 3660 columns, 953570 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 316622 rows, 3660 columns and 953570 nonzeros
Model fingerprint: 0x8320ed79
Variable types: 64 continuous, 3596 integer (3596 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 111924 rows and 27 columns
Presolve time: 2.26s
Presolved: 204698 rows, 3633 columns, 618364 nonzeros
Variable types: 0 continuous, 3633 integer (3569 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3621 rows, 208319 columns, 621997 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10385    1.5075040e+02   0.000000e+00   6.162615e+05      5s
   27038    1.1501603e+02   0.000000e+00   4.243200e+06     10s
   40060    8.5711813e+01   0.000000e+00   9.034467e+05     15s
   53060    7.6784010e+01   0.000000e+00   1.744719e+05     20s
   65986    7.5724954e+01   0.000000e+00   2.853515e+05     25s
   77158    7.5688343e+01   0.000000e+00   4.024206e+05     30s
   88559    7.5664767e+01   0.000000e+00   5.156988e+04     35s
  100734    7.5650601e+01   0.000000e+00   2.195964e+04     40s
  112134    7.5641901e+01   0.000000e+00   2.242431e+04     45s

Root relaxation: time limit, 123778 iterations, 47.41 seconds (34.94 work units)

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

     0     0          -    0        12.00000  384.00000  3100%     -   50s

Explored 1 nodes (123778 simplex iterations) in 50.03 seconds (37.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 -0 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.840000000000e+02, gap 3100.0000%

Wrote result file './lp_solutions/grafo6834.46.sol'

