0.00/0.01 c SCIP version 1.1.0.7
0.00/0.01 c LP-Solver Clp 1.8.2
0.00/0.01 c user parameter file <scip.set> not found - using default parameters
0.00/0.01 c read problem <HOME/instance-1869989-1245187685.opb>
0.00/0.01 c original problem has 280 variables (280 bin, 0 int, 0 impl, 0 cont) and 190 constraints
0.00/0.01 c start presolving problem
0.00/0.01 c presolving:
0.00/0.02 c (round 1) 8 del vars, 0 del conss, 0 chg bounds, 0 chg sides, 24 chg coeffs, 0 upgd conss, 1264 impls, 0 clqs
0.00/0.03 c (round 2) 10 del vars, 0 del conss, 0 chg bounds, 0 chg sides, 24 chg coeffs, 8 upgd conss, 1286 impls, 0 clqs
0.00/0.04 c (0.0s) probing: 176/270 (65.2%) - 0 fixings, 0 aggregations, 29 implications, 0 bound changes
0.00/0.04 c (0.0s) probing aborted: 100/100 successive totally useless probings
0.00/0.04 c presolving (3 rounds):
0.00/0.04 c 10 deleted vars, 0 deleted constraints, 0 tightened bounds, 0 added holes, 0 changed sides, 24 changed coefficients
0.00/0.04 c 1344 implications, 0 cliques
0.00/0.04 c presolved problem has 270 variables (270 bin, 0 int, 0 impl, 0 cont) and 189 constraints
0.00/0.04 c 174 constraints of type <and>
0.00/0.04 c 7 constraints of type <linear>
0.00/0.04 c 8 constraints of type <logicor>
0.00/0.04 c transformed objective value is always integral (scale: 1)
0.00/0.04 c Presolving Time: 0.03
0.00/0.04 c OPT-NLC
0.00/0.04 c -----------------------------------------------------------------------------------------------
0.00/0.04 c # maximal memory usage in MB; reported memory usage is lower than real memory usage!
0.00/0.04 c # [type: real, range: [0,1.79769313486232e+308], default: 1e+20]
0.00/0.04 c limits/memory = c 1620
0.00/0.04 c # maximal time in seconds to run
0.00/0.04 c # [type: real, range: [0,1.79769313486232e+308], default: 1e+20]
0.00/0.04 c limits/time = c 1791
0.00/0.04 c # frequency for displaying node information lines
0.00/0.04 c # [type: int, range: [-1,2147483647], default: 100]
0.00/0.04 c display/freq = c 10000
0.00/0.04 c -----------------------------------------------------------------------------------------------
0.00/0.04 c start solving problem
0.00/0.04 c
0.04/0.05 c time | node | left |LP iter| mem |mdpt |frac |vars |cons |ccons|cols |rows |cuts |confs|strbr| dualbound | primalbound | gap
0.04/0.05 c 0.0s| 1 | 0 | 21 |1148k| 0 | 12 | 270 | 189 | 189 | 270 | 361 | 0 | 0 | 0 | 2.000000e+00 | -- | Inf
0.04/0.08 c 0.1s| 1 | 0 | 311 |1169k| 0 | 11 | 270 | 189 | 189 | 270 | 369 | 8 | 0 | 0 | 2.000000e+00 | -- | Inf
0.04/0.09 c 0.1s| 1 | 0 | 356 |1207k| 0 | 43 | 270 | 189 | 189 | 270 | 392 | 31 | 0 | 0 | 2.000000e+00 | -- | Inf
0.09/0.12 c 0.1s| 1 | 0 | 432 |1253k| 0 | 76 | 270 | 189 | 189 | 270 | 407 | 46 | 0 | 0 | 2.000000e+00 | -- | Inf
0.09/0.18 c 0.1s| 1 | 0 | 547 |1322k| 0 | 73 | 270 | 189 | 189 | 270 | 482 | 121 | 0 | 0 | 2.000000e+00 | -- | Inf
0.19/0.23 c 0.2s| 1 | 0 | 594 |1391k| 0 | 70 | 270 | 189 | 189 | 270 | 519 | 158 | 0 | 0 | 2.000000e+00 | -- | Inf
0.29/0.30 c 0.3s| 1 | 0 | 651 |1450k| 0 | 83 | 270 | 189 | 189 | 270 | 544 | 183 | 0 | 0 | 2.000000e+00 | -- | Inf
0.39/0.40 c 0.4s| 1 | 2 | 651 |1450k| 0 | 83 | 270 | 189 | 189 | 270 | 544 | 183 | 0 | 17 | 2.000000e+00 | -- | Inf
5.49/5.59 o 2
5.49/5.59 c * 5.5s| 871 | 0 | 14910 |1946k| 51 | - | 270 | 848 | 80 | 270 | 272 |5013 | 660 |2130 | 2.000000e+00 | 2.000000e+00 | 0.00%
5.49/5.59 c
5.49/5.59 c SCIP Status : problem is solved [optimal solution found]
5.49/5.59 c Solving Time (sec) : 5.49
5.49/5.59 c Solving Nodes : 871
5.49/5.59 c Primal Bound : +2.00000000000000e+00 (1 solutions)
5.49/5.59 c Dual Bound : +2.00000000000000e+00
5.49/5.59 c Gap : 0.00 %
5.49/5.59 c NODE 871
5.49/5.59 c DUAL BOUND 2
5.49/5.59 c PRIMAL BOUND 2
5.49/5.59 c GAP 0
5.49/5.59 s OPTIMUM FOUND
5.49/5.59 v -x105 x104 -x103 -x102 -x101 -x100 -x99 -x98 -x97 x96 -x70 x69 -x68 x67 -x66 -x95 x94 -x93 -x92 -x91 -x65 x64 x63 x62 -x61 -x90
5.49/5.59 v x89 -x88 x87 -x86 x60 -x59 -x58 x57 -x56 -x85 x84 -x83 x82 x81 x55 x54 -x53 x52 -x51 x80 -x79 -x78 -x77 x76 -x50 x49 x48 x47
5.49/5.59 v -x46 -x75 -x74 -x73 -x72 -x71 x45 -x44 -x43 x42 -x41 x40 x39 -x38 x37 x36 -x35 -x34 -x33 x32 x31 -x30 x29 x28 x27 x26 -x25 x24
5.49/5.59 v x23 -x22 x21 x20 x19 -x18 x17 x16 x15 x14 x13 x12 x11 -x10 x9 -x8 -x7 x6 -x5 -x4 -x3 x2 -x1
5.49/5.59 c SCIP Status : problem is solved [optimal solution found]
5.49/5.59 c Solving Time : 5.49
5.49/5.59 c Original Problem :
5.49/5.59 c Problem name : HOME/instance-1869989-1245187685.opb
5.49/5.59 c Variables : 280 (280 binary, 0 integer, 0 implicit integer, 0 continuous)
5.49/5.59 c Constraints : 190 initial, 190 maximal
5.49/5.59 c Presolved Problem :
5.49/5.59 c Problem name : t_HOME/instance-1869989-1245187685.opb
5.49/5.59 c Variables : 270 (270 binary, 0 integer, 0 implicit integer, 0 continuous)
5.49/5.59 c Constraints : 189 initial, 848 maximal
5.49/5.59 c Presolvers : Time FixedVars AggrVars ChgTypes ChgBounds AddHoles DelCons ChgSides ChgCoefs
5.49/5.59 c trivial : 0.00 0 0 0 0 0 0 0 0
5.49/5.59 c dualfix : 0.00 0 0 0 0 0 0 0 0
5.49/5.59 c boundshift : 0.00 0 0 0 0 0 0 0 0
5.49/5.59 c inttobinary : 0.00 0 0 0 0 0 0 0 0
5.49/5.59 c implics : 0.00 0 2 0 0 0 0 0 0
5.49/5.59 c probing : 0.02 0 0 0 0 0 0 0 0
5.49/5.59 c and : 0.01 0 0 0 0 0 0 0 0
5.49/5.59 c linear : 0.00 1 7 0 0 0 0 0 24
5.49/5.59 c logicor : 0.00 0 0 0 0 0 0 0 0
5.49/5.59 c root node : - 0 - - 0 - - - -
5.49/5.59 c Constraints : Number #Separate #Propagate #EnfoLP #EnfoPS Cutoffs DomReds Cuts Conss Children
5.49/5.59 c integral : 0 0 0 777 0 6 115 0 0 1404
5.49/5.59 c and : 174 2100 3303 1 0 80 4379 4890 0 0
5.49/5.59 c linear : 7 6 3223 1 0 153 1421 0 0 0
5.49/5.59 c logicor : 8+ 6 1212 1 0 18 243 0 0 0
5.49/5.59 c countsols : 0 0 0 1 0 0 0 0 0 0
5.49/5.59 c Constraint Timings : TotalTime Separate Propagate EnfoLP EnfoPS
5.49/5.59 c integral : 1.65 0.00 0.00 1.65 0.00
5.49/5.59 c and : 0.11 0.07 0.04 0.00 0.00
5.49/5.59 c linear : 0.01 0.00 0.01 0.00 0.00
5.49/5.59 c logicor : 0.01 0.00 0.01 0.00 0.00
5.49/5.59 c countsols : 0.00 0.00 0.00 0.00 0.00
5.49/5.59 c Propagators : Time Calls Cutoffs DomReds
5.49/5.59 c rootredcost : 0.00 0 0 0
5.49/5.59 c pseudoobj : 0.01 2936 0 0
5.49/5.59 c Conflict Analysis : Time Calls Success Conflicts Literals Reconvs ReconvLits LP Iters
5.49/5.59 c propagation : 0.01 251 249 1470 21.0 71 13.1 -
5.49/5.59 c infeasible LP : 0.00 14 0 0 0.0 0 0.0 0
5.49/5.59 c bound exceed. LP : 0.00 0 0 0 0.0 0 0.0 0
5.49/5.59 c strong branching : 0.00 0 0 0 0.0 0 0.0 0
5.49/5.59 c pseudo solution : 0.00 0 0 0 0.0 0 0.0 -
5.49/5.59 c applied globally : - - - 659 16.1 - - -
5.49/5.59 c applied locally : - - - 1 39.0 - - -
5.49/5.59 c Separators : Time Calls Cutoffs DomReds Cuts Conss
5.49/5.59 c cut pool : 0.00 5 - - 44 - (maximal pool size: 316)
5.49/5.59 c redcost : 0.02 2100 0 0 0 0
5.49/5.59 c impliedbounds : 0.00 6 0 0 147 0
5.49/5.59 c intobj : 0.00 0 0 0 0 0
5.49/5.59 c gomory : 0.05 6 0 0 109 0
5.49/5.59 c strongcg : 0.05 6 0 0 269 0
5.49/5.59 c cmir : 0.02 6 0 0 87 0
5.49/5.59 c flowcover : 0.06 6 0 0 184 0
5.49/5.59 c clique : 0.00 6 0 0 1 0
5.49/5.59 c zerohalf : 0.00 0 0 0 0 0
5.49/5.59 c mcf : 0.00 1 0 0 0 0
5.49/5.59 c Pricers : Time Calls Vars
5.49/5.59 c problem variables: 0.00 0 0
5.49/5.59 c Branching Rules : Time Calls Cutoffs DomReds Cuts Conss Children
5.49/5.59 c relpscost : 1.65 776 6 115 0 0 1404
5.49/5.59 c pscost : 0.00 0 0 0 0 0 0
5.49/5.59 c inference : 0.00 0 0 0 0 0 0
5.49/5.59 c mostinf : 0.00 0 0 0 0 0 0
5.49/5.59 c leastinf : 0.00 0 0 0 0 0 0
5.49/5.59 c fullstrong : 0.00 0 0 0 0 0 0
5.49/5.59 c allfullstrong : 0.00 0 0 0 0 0 0
5.49/5.59 c random : 0.00 0 0 0 0 0 0
5.49/5.59 c Primal Heuristics : Time Calls Found
5.49/5.59 c LP solutions : 0.00 - 1
5.49/5.59 c pseudo solutions : 0.00 - 0
5.49/5.59 c oneopt : 0.00 0 0
5.49/5.59 c crossover : 0.00 0 0
5.49/5.59 c guideddiving : 0.00 0 0
5.49/5.59 c intshifting : 0.00 0 0
5.49/5.59 c pscostdiving : 0.01 3 0
5.49/5.59 c fracdiving : 0.01 3 0
5.49/5.59 c veclendiving : 0.01 3 0
5.49/5.59 c linesearchdiving : 0.01 3 0
5.49/5.59 c objpscostdiving : 0.06 2 0
5.49/5.59 c feaspump : 0.03 2 0
5.49/5.59 c rootsoldiving : 0.03 2 0
5.49/5.59 c coefdiving : 0.01 4 0
5.49/5.59 c simplerounding : 0.01 0 0
5.49/5.59 c rounding : 0.01 627 0
5.49/5.59 c shifting : 0.13 195 0
5.49/5.59 c fixandinfer : 0.00 0 0
5.49/5.59 c intdiving : 0.00 0 0
5.49/5.59 c actconsdiving : 0.00 0 0
5.49/5.59 c octane : 0.00 0 0
5.49/5.59 c rens : 0.02 1 0
5.49/5.59 c rins : 0.00 0 0
5.49/5.59 c localbranching : 0.00 0 0
5.49/5.59 c mutation : 0.00 0 0
5.49/5.59 c dins : 0.00 0 0
5.49/5.59 c LP : Time Calls Iterations Iter/call Iter/sec
5.49/5.59 c primal LP : 0.33 0 0 0.00 0.00
5.49/5.59 c dual LP : 2.48 2277 13837 6.08 5579.44
5.49/5.59 c barrier LP : 0.00 0 0 0.00 -
5.49/5.59 c diving/probing LP: 0.14 163 1073 6.58 7664.29
5.49/5.59 c strong branching : 1.62 2130 24958 11.72 15406.17
5.49/5.59 c (at root node) : - 17 699 41.12 -
5.49/5.59 c conflict analysis: 0.00 0 0 0.00 -
5.49/5.59 c B&B Tree :
5.49/5.59 c number of runs : 1
5.49/5.59 c nodes : 871
5.49/5.59 c nodes (total) : 871
5.49/5.59 c nodes left : 0
5.49/5.59 c max depth : 51
5.49/5.59 c max depth (total): 51
5.49/5.59 c backtracks : 107 (12.3%)
5.49/5.59 c delayed cutoffs : 79
5.49/5.59 c repropagations : 343 (1135 domain reductions, 59 cutoffs)
5.49/5.59 c avg switch length: 3.30
5.49/5.59 c switching time : 0.37
5.49/5.59 c Solution :
5.49/5.59 c Solutions found : 1 (1 improvements)
5.49/5.59 c Primal Bound : +2.00000000000000e+00 (in run 1, after 871 nodes, 5.49 seconds, depth 51, found by <relaxation>)
5.49/5.59 c Dual Bound : +2.00000000000000e+00
5.49/5.59 c Gap : 0.00 %
5.49/5.59 c Root Dual Bound : +2.00000000000000e+00
5.49/5.60 c Time complete: 5.59.
runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1869989-1245187685/watcher-1869989-1245187685 -o /tmp/evaluation-result-1869989-1245187685/solver-1869989-1245187685 -C 1800 -W 2000 -M 1800 HOME/pbscip.linux.x86_64.gnu.opt-gcc42.clp -t 1800 -m 1800 -f HOME/instance-1869989-1245187685.opb
Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB
[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13908
/proc/meminfo: memFree=1657248/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=5812 CPUtime=0
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 518 0 0 0 0 0 0 0 18 0 1 0 71477290 5951488 502 1992294400 4194304 9342243 548682068736 18446744073709551615 8223232 0 0 4096 0 0 0 0 17 1 0 0
/proc/13908/statm: 1453 507 336 1256 0 192 0
[startup+0.0505391 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13908
/proc/meminfo: memFree=1657248/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=16028 CPUtime=0.04
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 2985 0 0 0 3 1 0 0 18 0 1 0 71477290 16412672 2616 1992294400 4194304 9342243 548682068736 18446744073709551615 6957408 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4007 2624 606 1256 0 2746 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 16028
[startup+0.101544 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13908
/proc/meminfo: memFree=1657248/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=16680 CPUtime=0.09
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 3229 0 0 0 7 2 0 0 18 0 1 0 71477290 17080320 2858 1992294400 4194304 9342243 548682068736 18446744073709551615 8300202 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4170 2858 680 1256 0 2909 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16680
[startup+0.301562 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13908
/proc/meminfo: memFree=1657248/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=17924 CPUtime=0.29
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 3585 0 0 0 27 2 0 0 19 0 1 0 71477290 18354176 3204 1992294400 4194304 9342243 548682068736 18446744073709551615 8300202 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4481 3204 680 1256 0 3220 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17924
[startup+0.701597 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13908
/proc/meminfo: memFree=1657248/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19228 CPUtime=0.69
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5403 0 0 0 65 4 0 0 22 0 1 0 71477290 19689472 3342 1992294400 4194304 9342243 548682068736 18446744073709551615 8308455 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4807 3342 694 1256 0 3546 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19228
[startup+1.50166 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1646488/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19228 CPUtime=1.49
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5429 0 0 0 145 4 0 0 25 0 1 0 71477290 19689472 3368 1992294400 4194304 9342243 548682068736 18446744073709551615 8300202 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4807 3368 701 1256 0 3546 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19228
[startup+3.10181 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1646104/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19508 CPUtime=3.09
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5561 0 0 0 303 6 0 0 25 0 1 0 71477290 19976192 3500 1992294400 4194304 9342243 548682068736 18446744073709551615 8308455 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4877 3500 701 1256 0 3616 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 19508
Solver just ended. Dumping a history of the last processes samples
[startup+4.70195 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1645528/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19508 CPUtime=4.69
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5624 0 0 0 461 8 0 0 25 0 1 0 71477290 19976192 3563 1992294400 4194304 9342243 548682068736 18446744073709551615 8300202 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4877 3563 701 1256 0 3616 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 19508
[startup+5.10198 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1645528/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19676 CPUtime=5.09
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5646 0 0 0 500 9 0 0 25 0 1 0 71477290 20148224 3585 1992294400 4194304 9342243 548682068736 18446744073709551615 8308455 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4919 3585 701 1256 0 3658 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 19676
[startup+5.50602 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1645464/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=19676 CPUtime=5.49
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194304 5663 0 0 0 540 9 0 0 25 0 1 0 71477290 20148224 3602 1992294400 4194304 9342243 548682068736 18446744073709551615 8300202 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13908/statm: 4919 3602 701 1256 0 3658 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 19676
[startup+5.60203 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 13909
/proc/meminfo: memFree=1645464/2055920 swapFree=4192956/4192956
[pid=13908] ppid=13906 vsize=0 CPUtime=5.59
/proc/13908/stat : 13908 (pbscip.linux.x8) R 13906 13908 12952 0 -1 4194308 5669 0 0 0 550 9 0 0 25 0 1 0 71477290 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/13908/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 5.59
Current children cumulated vsize (KiB) 0
Child status: 0
Real time (s): 5.60261
CPU time (s): 5.60115
CPU user time (s): 5.50116
CPU system time (s): 0.099984
CPU usage (%): 99.9738
Max. virtual memory (cumulated for all children) (KiB): 19676
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.50116
system time used= 0.099984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5669
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 8
runsolver used 0.010998 second user time and 0.017997 second system time
The end