
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:53:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3276.49.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/grafo3276.49.lp
Reading time = 0.32 seconds
: 147012 rows, 3158 columns, 443768 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 147012 rows, 3158 columns and 443768 nonzeros
Model fingerprint: 0x90b3ca0e
Variable types: 56 continuous, 3102 integer (3102 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 2.0000000
Presolve removed 31685 rows and 0 columns
Presolve time: 1.18s
Presolved: 115327 rows, 3158 columns, 349234 nonzeros
Variable types: 0 continuous, 3158 integer (3102 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3122 rows, 118449 columns, 352392 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14044    6.6005892e+01   0.000000e+00   2.288069e+05      5s
   27207    6.1967483e+01   0.000000e+00   3.575990e+04     10s
   40001    6.1952372e+01   0.000000e+00   2.900701e+04     15s
   52321    6.1943631e+01   0.000000e+00   7.831838e+03     20s
   64177    6.1938018e+01   0.000000e+00   1.458747e+04     25s
   76033    6.1934163e+01   0.000000e+00   8.377373e+03     30s
   87433    6.1931901e+01   0.000000e+00   1.050612e+04     35s
   98833    6.1931035e+01   0.000000e+00   2.147836e+02     40s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     43s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     43s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     44s

Root relaxation: objective 6.200000e+01, 106103 iterations, 42.13 seconds (27.10 work units)

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

     0     0   62.00000    0 1982   11.00000   62.00000   464%     -   50s

Explored 1 nodes (107762 simplex iterations) in 50.06 seconds (33.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.200000000000e+01, gap 463.6364%

Wrote result file './lp_solutions/grafo3276.49.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:45:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3276.49.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/grafo3276.49.lp
Reading time = 0.23 seconds
: 147012 rows, 3158 columns, 443768 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 147012 rows, 3158 columns and 443768 nonzeros
Model fingerprint: 0x90b3ca0e
Variable types: 56 continuous, 3102 integer (3102 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 2.0000000
Presolve removed 31685 rows and 0 columns
Presolve time: 0.87s
Presolved: 115327 rows, 3158 columns, 349234 nonzeros
Variable types: 0 continuous, 3158 integer (3102 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3122 rows, 118449 columns, 352392 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18491    6.3986727e+01   0.000000e+00   7.239311e+05      5s
   35436    6.1957036e+01   0.000000e+00   4.640336e+04     10s
   52321    6.1943631e+01   0.000000e+00   7.831838e+03     15s
   68737    6.1936440e+01   0.000000e+00   4.481995e+04     20s
   85153    6.1932226e+01   0.000000e+00   2.117974e+03     25s
  101113    6.1930964e+01   0.000000e+00   1.048347e+03     30s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     32s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     32s
  106103    6.2000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 6.200000e+01, 106103 iterations, 30.63 seconds (27.10 work units)

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

     0     0   62.00000    0 1982   11.00000   62.00000   464%     -   50s

Explored 1 nodes (115956 simplex iterations) in 50.04 seconds (45.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.200000000000e+01, gap 463.6364%

Wrote result file './lp_solutions/grafo3276.49.sol'

