
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:01:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1353.49.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/grafo1353.49.lp
Reading time = 0.18 seconds
: 89590 rows, 2497 columns, 270530 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 89590 rows, 2497 columns and 270530 nonzeros
Model fingerprint: 0xd719852a
Variable types: 45 continuous, 2452 integer (2452 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 15106 rows and 2 columns
Presolve time: 0.81s
Presolved: 74484 rows, 2495 columns, 225511 nonzeros
Variable types: 0 continuous, 2495 integer (2450 binary)
Root relaxation presolved: 2477 rows, 76961 columns, 228006 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16005    4.5767842e+01   0.000000e+00   7.680517e+03      5s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      9s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      9s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.600000e+01, 31372 iterations, 8.30 seconds (4.84 work units)
Total elapsed time = 20.71s (DegenMoves)
Total elapsed time = 28.82s (DegenMoves)
Total elapsed time = 33.69s (DegenMoves)

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

     0     0   46.00000    0  534          -   46.00000      -     -   34s
H    0     0                       9.0000000   46.00000   411%     -   38s
     0     0   46.00000    0  678    9.00000   46.00000   411%     -   46s
H    0     0                      15.0000000   46.00000   207%     -   47s
     0     0   46.00000    0  704   15.00000   46.00000   207%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 1
  Clique: 6
  MIR: 43
  Zero half: 2
  RLT: 32
  BQP: 1

Explored 1 nodes (58721 simplex iterations) in 50.19 seconds (37.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.600000000000e+01, gap 206.6667%

Wrote result file './lp_solutions/grafo1353.49.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:40:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1353.49.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/grafo1353.49.lp
Reading time = 0.14 seconds
: 89590 rows, 2497 columns, 270530 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 89590 rows, 2497 columns and 270530 nonzeros
Model fingerprint: 0xd719852a
Variable types: 45 continuous, 2452 integer (2452 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 15106 rows and 2 columns
Presolve time: 0.50s
Presolved: 74484 rows, 2495 columns, 225511 nonzeros
Variable types: 0 continuous, 2495 integer (2450 binary)
Root relaxation presolved: 2477 rows, 76961 columns, 228006 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25535    4.5759944e+01   0.000000e+00   2.191392e+03      5s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      6s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      6s
   31372    4.6000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.600000e+01, 31372 iterations, 5.65 seconds (4.84 work units)
Total elapsed time = 15.04s (DegenMoves)
Total elapsed time = 21.08s (DegenMoves)

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

     0     0   46.00000    0  534          -   46.00000      -     -   24s
H    0     0                       9.0000000   46.00000   411%     -   27s
     0     0   46.00000    0  678    9.00000   46.00000   411%     -   32s
H    0     0                      15.0000000   46.00000   207%     -   33s
     0     0   46.00000    0  704   15.00000   46.00000   207%     -   34s
     0     0   46.00000    0  741   15.00000   46.00000   207%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 39
  Cover: 28
  Clique: 8
  MIR: 164
  Zero half: 51
  RLT: 81
  BQP: 4

Explored 1 nodes (69614 simplex iterations) in 50.09 seconds (48.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.600000000000e+01, gap 206.6667%

Wrote result file './lp_solutions/grafo1353.49.sol'

