Trace number 41191

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
PBS 4.1LOPT788263 165.968 166.019

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-pipex.opb
MD5SUM3e6a99258fbc02bc052cab2d6151884d
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark788263
Best CPU time to get the best result obtained on this benchmark0.18597
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 788263
Optimality of the best value was proved YES
Number of variables48
Total number of constraints25
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint3
Maximum length of a constraint16
Number of terms in the objective function 48
Biggest coefficient in the objective function 107865
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 2514082
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 107865
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 2514082
Number of bits of the biggest sum of numbers22
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node2/41191-1149322748/instance-41191-1149322748.opb ......
0.03	c done parsing opb.
0.03	o 869247
0.04	o 864813
0.04	o 853929
0.05	o 839465
0.06	o 825951
0.10	o 822368
0.12	o 820846
0.15	o 794954
6.52	o 794342
55.51	o 792333
63.53	o 790714
85.00	o 788263
166.01	o 788263
166.01	s OPTIMUM FOUND
166.01	c Total Run Time					165.962
166.01	v x1 -x10 x11 -x12 x13 -x14 -x15 -x16 -x17 -x18 -x19 x2 -x20 -x21 -x22 x23 x24 -x25 -x26 -x27 x28 -x29 -x3 x30 x31 x32 -x33 -x34 x35
166.01	v x36 x37 x38 -x39 -x4 -x40 x41 x42 -x43 -x44 -x45 -x46 -x47 -x48 -x5 -x6 -x7 -x8 -x9

Verifier Data (download as text)

OK	788263

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-41191-1149322748 -o ROOT/results/node2/solver-41191-1149322748 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node2/41191-1149322748/instance-41191-1149322748.opb 382218001 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.92 3/64 29896
/proc/meminfo: memFree=1465744/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=1400 CPUtime=0
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 197936470 1433600 119 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135084712 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 342 119 101 232 0 107 0

[startup+10.0019 s]
/proc/loadavg: 0.93 0.95 0.92 2/64 29896
/proc/meminfo: memFree=1459480/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=7812 CPUtime=9.99
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 1829 0 0 0 994 5 0 0 25 0 1 0 197936470 7999488 1666 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 1953 1666 107 232 0 1718 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 7812

[startup+20.0079 s]
/proc/loadavg: 0.94 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1457048/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=13380 CPUtime=19.99
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 2628 0 0 0 1991 8 0 0 25 0 1 0 197936470 13701120 2272 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134551979 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 3345 2272 107 232 0 3110 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 13380

[startup+30.014 s]
/proc/loadavg: 0.95 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1454936/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=14028 CPUtime=29.99
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 3150 0 0 0 2989 10 0 0 25 0 1 0 197936470 14364672 2794 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 3507 2794 107 232 0 3272 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 14028

[startup+40.02 s]
/proc/loadavg: 0.95 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1453016/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=14644 CPUtime=40
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 3619 0 0 0 3987 13 0 0 25 0 1 0 197936470 14995456 3263 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134551979 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 3661 3263 107 232 0 3426 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 14644

[startup+50.0261 s]
/proc/loadavg: 0.96 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1452248/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=16636 CPUtime=50.01
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 4197 0 0 0 4986 15 0 0 25 0 1 0 197936470 17035264 3456 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 4159 3456 107 232 0 3924 0
Current children cumulated CPU time (s) 50.01
Current children cumulated vsize (Kb) 16636

[startup+60.0321 s]
/proc/loadavg: 0.97 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1450840/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=25356 CPUtime=60
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 4573 0 0 0 5984 16 0 0 25 0 1 0 197936470 25964544 3832 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6339 3832 107 232 0 6104 0
Current children cumulated CPU time (s) 60
Current children cumulated vsize (Kb) 25356

[startup+70.0382 s]
/proc/loadavg: 0.97 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1449432/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=26148 CPUtime=70.01
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 4922 0 0 0 6983 18 0 0 25 0 1 0 197936470 26775552 4181 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6537 4181 107 232 0 6302 0
Current children cumulated CPU time (s) 70.01
Current children cumulated vsize (Kb) 26148

[startup+80.0442 s]
/proc/loadavg: 0.98 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1448216/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=26280 CPUtime=80.01
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 5220 0 0 0 7982 19 0 0 25 0 1 0 197936470 26910720 4479 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6570 4479 107 232 0 6335 0
Current children cumulated CPU time (s) 80.01
Current children cumulated vsize (Kb) 26280

[startup+90.0503 s]
/proc/loadavg: 0.98 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1447064/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=26544 CPUtime=90.02
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 5496 0 0 0 8981 21 0 0 25 0 1 0 197936470 27181056 4755 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6636 4755 107 232 0 6401 0
Current children cumulated CPU time (s) 90.02
Current children cumulated vsize (Kb) 26544

[startup+100.056 s]
/proc/loadavg: 0.98 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1446040/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=26544 CPUtime=100.02
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 5761 0 0 0 9979 23 0 0 25 0 1 0 197936470 27181056 5020 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6636 5020 107 232 0 6401 0
Current children cumulated CPU time (s) 100.02
Current children cumulated vsize (Kb) 26544

[startup+110.062 s]
/proc/loadavg: 0.98 0.96 0.92 2/64 29896
/proc/meminfo: memFree=1444632/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=27060 CPUtime=110.02
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 6113 0 0 0 10977 25 0 0 25 0 1 0 197936470 27709440 5372 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6765 5372 107 232 0 6530 0
Current children cumulated CPU time (s) 110.02
Current children cumulated vsize (Kb) 27060

[startup+120.068 s]
/proc/loadavg: 0.99 0.97 0.92 2/64 29896
/proc/meminfo: memFree=1443352/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=27636 CPUtime=120.02
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 6526 0 0 0 11976 26 0 0 25 0 1 0 197936470 28299264 5686 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 6909 5686 107 232 0 6674 0
Current children cumulated CPU time (s) 120.02
Current children cumulated vsize (Kb) 27636

[startup+130.073 s]
/proc/loadavg: 0.99 0.97 0.92 2/64 29896
/proc/meminfo: memFree=1442456/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=28084 CPUtime=130.03
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 6818 0 0 0 12975 28 0 0 25 0 1 0 197936470 28758016 5912 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 7021 5912 107 232 0 6786 0
Current children cumulated CPU time (s) 130.03
Current children cumulated vsize (Kb) 28084

[startup+140.079 s]
/proc/loadavg: 0.99 0.97 0.92 2/64 29896
/proc/meminfo: memFree=1441496/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=31284 CPUtime=140.03
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 7828 0 0 0 13973 30 0 0 25 0 1 0 197936470 32034816 6120 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 7821 6120 107 232 0 7586 0
Current children cumulated CPU time (s) 140.03
Current children cumulated vsize (Kb) 31284

[startup+150.086 s]
/proc/loadavg: 0.99 0.97 0.92 2/64 29896
/proc/meminfo: memFree=1440920/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=31544 CPUtime=150.03
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 8031 0 0 0 14972 31 0 0 25 0 1 0 197936470 32301056 6290 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 7886 6290 107 232 0 7651 0
Current children cumulated CPU time (s) 150.03
Current children cumulated vsize (Kb) 31544

[startup+160.092 s]
/proc/loadavg: 0.99 0.97 0.92 2/64 29896
/proc/meminfo: memFree=1438872/2055920 swapFree=4181512/4192956
[pid=29896] ppid=29894 vsize=33008 CPUtime=160.04
/proc/29896/stat : 29896 (PBS4L) R 29894 29896 29850 0 -1 4194304 8552 0 0 0 15970 34 0 0 25 0 1 0 197936470 33800192 6811 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 1 0 0
/proc/29896/statm: 8252 6811 107 232 0 8017 0
Current children cumulated CPU time (s) 160.04
Current children cumulated vsize (Kb) 33008

Child status: 0
Real time (s): 166.019
CPU time (s): 165.968
CPU user time (s): 165.611
CPU system time (s): 0.356945
CPU usage (%): 99.9692
Max. virtual memory (cumulated for all children) (Kb): 33008

Launcher Data (download as text)

Begin job on node2 on Sat Jun  3 08:19:09 UTC 2006


FILE ID= 41191-1149322748

PBS_JOBID= 309457

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-pipex.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node2/41191-1149322748/instance-41191-1149322748.opb 382218001
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-41191-1149322748 -o ROOT/results/node2/solver-41191-1149322748 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node2/41191-1149322748/instance-41191-1149322748.opb 382218001

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  3e6a99258fbc02bc052cab2d6151884d

RANDOM SEED= 382218001


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1465952 kB
Buffers:         27956 kB
Cached:         491436 kB
SwapCached:       3392 kB
Active:          79920 kB
Inactive:       448396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1465952 kB
SwapTotal:     4192956 kB
SwapFree:      4181512 kB
Dirty:             156 kB
Writeback:           0 kB
Mapped:          14936 kB
Slab:            47596 kB
Committed_AS:   286736 kB
PageTables:       1496 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node2 on Sat Jun  3 08:21:55 UTC 2006