Trace number 357589

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 NameAnswerCPU timeWall clock time
PB-clasp 2007-04-10SAT 0.141977 0.123079

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/robin/normalized-robin8.opb
MD5SUMb99d95db889fb1865f00b4b2c1a82fb3
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.041992
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables784
Total number of constraints256
Number of constraints which are clauses112
Number of constraints which are cardinality constraints (but not clauses)144
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint28
Maximum length of a constraint49
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 51
Number of bits of the biggest sum of numbers6
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)

0.00/0.12	s SATISFIABLE
0.00/0.12	v x22 x38 x82 x86 x140 x163 x182 x197 x248 x272 x287 x316 x345 x370 x408 x445 x463 x479 x516 x559 x565 x605 x629 x663 x683 x718 x732
0.00/0.12	v x777

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/357589-1176829764/instance-357589-1176829764.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node61/watcher-357589-1176829764 -o ROOT/results/node61/solver-357589-1176829764 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-357589-1176829764.opb /tmp/evaluation/357589-1176829764/temp 

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: 0.85 0.97 0.99 3/64 10595
/proc/meminfo: memFree=1885176/2055920 swapFree=4181928/4192956
[pid=10595] ppid=10593 vsize=12268 CPUtime=0
/proc/10595/stat : 10595 (pbclasp) D 10593 10595 9808 0 -1 4194304 351 0 0 0 0 0 0 0 18 0 1 0 94940070 12562432 317 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 246406675045 0 2147483391 4224 0 0 0 0 17 1 0 0
/proc/10595/statm: 3067 317 242 3 0 167 0

[startup+0.106053 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 10595
/proc/meminfo: memFree=1885176/2055920 swapFree=4181928/4192956
[pid=10595] ppid=10593 vsize=12400 CPUtime=0
/proc/10595/stat : 10595 (pbclasp) S 10593 10595 9808 0 -1 4194304 492 0 0 0 0 0 0 0 16 0 1 0 94940070 12697600 440 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 246415405154 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/10595/statm: 3100 440 320 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

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

[startup+0.106053 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 10595
/proc/meminfo: memFree=1885176/2055920 swapFree=4181928/4192956
[pid=10595] ppid=10593 vsize=12400 CPUtime=0
/proc/10595/stat : 10595 (pbclasp) S 10593 10595 9808 0 -1 4194304 492 0 0 0 0 0 0 0 16 0 1 0 94940070 12697600 440 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 246415405154 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/10595/statm: 3100 440 320 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

Child status: 0
Real time (s): 0.123079
CPU time (s): 0.141977
CPU user time (s): 0.121981
CPU system time (s): 0.019996
CPU usage (%): 115.354
Max. virtual memory (cumulated for all children) (KiB): 12400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.121981
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2300
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= 66
involuntary context switches= 8

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node61 on Tue Apr 17 17:09:24 UTC 2007

IDJOB= 357589
IDBENCH= 1152
IDSOLVER= 167
FILE ID= node61/357589-1176829764

PBS_JOBID= 4586356

Free space on /tmp= 66511 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/prestwich/robin/normalized-robin8.opb
COMMAND LINE= pbclasp instance-357589-1176829764.opb /tmp/evaluation/357589-1176829764/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node61/convwatcher-357589-1176829764 -o ROOT/results/node61/conversion-357589-1176829764 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357589-1176829764/instance-357589-1176829764.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-357589-1176829764 -o ROOT/results/node61/solver-357589-1176829764 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-357589-1176829764.opb /tmp/evaluation/357589-1176829764/temp

META MD5SUM SOLVER= 1e5f480786d97be718f2223f2ffb5f36
MD5SUM BENCH=  b99d95db889fb1865f00b4b2c1a82fb3

RANDOM SEED= 572098357

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node61.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		: 3000.240
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:       1885584 kB
Buffers:         15892 kB
Cached:         112884 kB
SwapCached:       5320 kB
Active:          49144 kB
Inactive:        92112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1885584 kB
SwapTotal:     4192956 kB
SwapFree:      4181928 kB
Dirty:             532 kB
Writeback:           0 kB
Mapped:          15796 kB
Slab:            15200 kB
Committed_AS:   779228 kB
PageTables:       1388 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= 66511 MiB

End job on node61 on Tue Apr 17 17:09:25 UTC 2007