Trace number 458653

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
PBS4_v2 2007-03-23UNSAT 26.6559 26.6644

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum2.opb
MD5SUM321e9d4e6ed80bc00fdeca5e2a9625ff
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark6.52701
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables25930
Total number of constraints22640
Number of constraints which are clauses10362
Number of constraints which are cardinality constraints (but not clauses)103
Number of constraints which are nor clauses,nor cardinality constraints12175
Minimum length of a constraint1
Maximum length of a constraint913
Number of terms in the objective function 24130
Biggest coefficient in the objective function 94430
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 544308
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 371834
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 544308
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458653-1178639371/instance-458653-1178639371.opb ......
26.58/26.64	c done parsing opb.
26.58/26.64	s UNSATISFIABLE
26.58/26.64	c Total Run Time					0.056992

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458653-1178639371/instance-458653-1178639371.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-458653-1178639371 -o ROOT/results/node44/solver-458653-1178639371 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458653-1178639371/instance-458653-1178639371.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.34 1.08 1.03 3/77 20055
/proc/meminfo: memFree=1825416/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=3756 CPUtime=0
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 495 0 0 0 0 0 0 0 18 0 1 0 311849037 3846144 477 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134570608 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 939 481 79 219 0 716 0

[startup+0.0244049 s]
/proc/loadavg: 1.34 1.08 1.03 3/77 20055
/proc/meminfo: memFree=1825416/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=4976 CPUtime=0.01
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1034 0 0 0 1 0 0 0 18 0 1 0 311849037 5095424 1016 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135057549 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1244 1016 84 219 0 1021 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4976

[startup+0.101413 s]
/proc/loadavg: 1.34 1.08 1.03 3/77 20055
/proc/meminfo: memFree=1825416/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=6124 CPUtime=0.09
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1315 0 0 0 9 0 0 0 18 0 1 0 311849037 6270976 1264 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134784927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1531 1264 84 219 0 1308 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6124

[startup+0.301434 s]
/proc/loadavg: 1.34 1.08 1.03 3/77 20055
/proc/meminfo: memFree=1825416/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=6304 CPUtime=0.29
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1379 0 0 0 29 0 0 0 19 0 1 0 311849037 6455296 1328 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586381 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1576 1328 86 219 0 1353 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6304

[startup+0.701473 s]
/proc/loadavg: 1.34 1.08 1.03 3/77 20055
/proc/meminfo: memFree=1825416/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=6304 CPUtime=0.69
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1379 0 0 0 69 0 0 0 23 0 1 0 311849037 6455296 1328 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586362 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1576 1328 86 219 0 1353 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6304

[startup+1.50156 s]
/proc/loadavg: 1.32 1.08 1.02 2/78 20056
/proc/meminfo: memFree=1820352/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=6304 CPUtime=1.49
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1379 0 0 0 149 0 0 0 25 0 1 0 311849037 6455296 1328 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586474 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1576 1328 86 219 0 1353 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6304

[startup+3.10173 s]
/proc/loadavg: 1.32 1.08 1.02 2/78 20056
/proc/meminfo: memFree=1819968/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=6684 CPUtime=3.09
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 1474 0 0 0 309 0 0 0 25 0 1 0 311849037 6844416 1423 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134587091 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 1671 1423 86 219 0 1448 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6684

[startup+6.30105 s]
/proc/loadavg: 1.32 1.08 1.02 2/78 20056
/proc/meminfo: memFree=1811776/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=17740 CPUtime=6.29
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 5687 0 0 0 627 2 0 0 25 0 1 0 311849037 18165760 4208 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134530468 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 4435 4208 86 219 0 4212 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17740

[startup+12.7017 s]
/proc/loadavg: 1.27 1.08 1.02 2/78 20056
/proc/meminfo: memFree=1781464/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=45932 CPUtime=12.69
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 12843 0 0 0 1263 6 0 0 25 0 1 0 311849037 47034368 11140 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134793282 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 11483 11140 86 219 0 11260 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 45932

[startup+25.501 s]
/proc/loadavg: 1.23 1.07 1.02 2/78 20056
/proc/meminfo: memFree=1757080/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=71584 CPUtime=25.48
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 19245 0 0 0 2537 11 0 0 25 0 1 0 311849037 73302016 17542 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134530024 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 17896 17542 86 219 0 17673 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 71584

Solver just ended. Dumping a history of the last processes samples

[startup+26.3011 s]
/proc/loadavg: 1.21 1.07 1.02 2/78 20056
/proc/meminfo: memFree=1754712/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=73184 CPUtime=26.28
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 19666 0 0 0 2617 11 0 0 25 0 1 0 311849037 74940416 17963 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586450 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 18296 17963 86 219 0 18073 0
Current children cumulated CPU time (s) 26.28
Current children cumulated vsize (KiB) 73184

[startup+26.5011 s]
/proc/loadavg: 1.21 1.07 1.02 2/78 20056
/proc/meminfo: memFree=1754712/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=73632 CPUtime=26.48
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 19758 0 0 0 2637 11 0 0 25 0 1 0 311849037 75399168 18055 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134530019 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 18408 18055 86 219 0 18185 0
Current children cumulated CPU time (s) 26.48
Current children cumulated vsize (KiB) 73632

[startup+26.6011 s]
/proc/loadavg: 1.21 1.07 1.02 2/78 20056
/proc/meminfo: memFree=1754712/2055920 swapFree=4155964/4192956
[pid=20055] ppid=20053 vsize=73572 CPUtime=26.58
/proc/20055/stat : 20055 (PBS4_SAT07v2) R 20053 20055 19862 0 -1 4194304 19893 0 0 0 2647 11 0 0 25 0 1 0 311849037 75337728 18091 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134545675 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20055/statm: 18393 18091 89 219 0 18170 0
Current children cumulated CPU time (s) 26.58
Current children cumulated vsize (KiB) 73572

Child status: 0
Real time (s): 26.6644
CPU time (s): 26.6559
CPU user time (s): 26.525
CPU system time (s): 0.13098
CPU usage (%): 99.9681
Max. virtual memory (cumulated for all children) (KiB): 73632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.525
system time used= 0.13098
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19912
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= 8
involuntary context switches= 560

runsolver used 0.021996 second user time and 0.072988 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Tue May  8 15:49:33 UTC 2007

IDJOB= 458653
IDBENCH= 1775
IDSOLVER= 200
FILE ID= node44/458653-1178639371

PBS_JOBID= 5218342

Free space on /tmp= 66528 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum2.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458653-1178639371/instance-458653-1178639371.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node44/convwatcher-458653-1178639371 -o ROOT/results/node44/conversion-458653-1178639371 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458653-1178639371/instance-458653-1178639371.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-458653-1178639371 -o ROOT/results/node44/solver-458653-1178639371 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458653-1178639371/instance-458653-1178639371.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  321e9d4e6ed80bc00fdeca5e2a9625ff

RANDOM SEED= 290393728

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.234
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		: 3000.234
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:       1825888 kB
Buffers:          3436 kB
Cached:          91900 kB
SwapCached:      12512 kB
Active:         119212 kB
Inactive:        36516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1825888 kB
SwapTotal:     4192956 kB
SwapFree:      4155964 kB
Dirty:           33836 kB
Writeback:           0 kB
Mapped:          68892 kB
Slab:            59764 kB
Committed_AS:  4638012 kB
PageTables:       1832 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66528 MiB

End job on node44 on Tue May  8 15:50:00 UTC 2007