Trace number 237925

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
buggy_2_5 2007-01-08UNSAT 2.33265 2.37395

General information on the benchmark

Namehaystacks/
haystacks_18.xml
MD5SUM757a7d7d596bf08d2c2a5ff2f9f77493
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.33265
SatisfiableNO
(Un)Satisfiability was proved
Number of variables324
Number of constraints2771
Maximum constraint arity2
Maximum domain size18
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2771
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

UNSAT

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-237925-1168352264 -o ROOT/results/node41/solver-237925-1168352264 -C 1800 -M 900 /tmp/evaluation/237925-1168352264/solver /tmp/evaluation/237925-1168352264/unknown 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.93 2.00 1.99 5/74 26750
/proc/meminfo: memFree=1749104/2055920 swapFree=4191892/4192956
[pid=26749] ppid=26747 vsize=5352 CPUtime=0
/proc/26749/stat : 26749 (solver) S 26747 26749 23857 0 -1 4194304 295 26 0 0 0 0 0 0 16 0 1 0 183625789 5480448 232 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 238390141764 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/26749/statm: 1338 232 194 169 0 49 0
[pid=26752] ppid=26749 vsize=100 CPUtime=0
/proc/26752/stat : 26752 (grep) R 26749 26749 23857 0 -1 4194304 26 0 0 0 0 0 0 0 23 0 1 0 183625789 102400 3 18446744073709551615 0 0 548682070239 18446744073709551615 238390144295 0 0 4096 0 0 0 0 17 1 0 0
/proc/26752/statm: 25 3 0 0 0 2 0

[startup+0.106653 s]
/proc/loadavg: 1.93 2.00 1.99 5/74 26750
/proc/meminfo: memFree=1749104/2055920 swapFree=4191892/4192956
[pid=26749] ppid=26747 vsize=5352 CPUtime=0.05
/proc/26749/stat : 26749 (solver) S 26747 26749 23857 0 -1 4194304 376 2256 0 0 0 0 4 1 17 0 1 0 183625789 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 238390141764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26749/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5352

[startup+0.518684 s]
/proc/loadavg: 1.93 2.00 1.99 5/74 26750
/proc/meminfo: memFree=1749104/2055920 swapFree=4191892/4192956
[pid=26749] ppid=26747 vsize=5352 CPUtime=0.05
/proc/26749/stat : 26749 (solver) S 26747 26749 23857 0 -1 4194304 376 2256 0 0 0 0 4 1 17 0 1 0 183625789 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 238390141764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26749/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5352

[startup+1.34476 s]
/proc/loadavg: 1.93 2.00 1.99 3/75 26763
/proc/meminfo: memFree=1744864/2055920 swapFree=4191892/4192956
[pid=26749] ppid=26747 vsize=5352 CPUtime=0.57
/proc/26749/stat : 26749 (solver) S 26747 26749 23857 0 -1 4194304 396 5172 0 0 0 0 33 24 15 0 1 0 183625789 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 238390141764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26749/statm: 1338 242 203 169 0 49 0
[pid=26763] ppid=26749 vsize=5480 CPUtime=0.73
/proc/26763/stat : 26763 (standalone) R 26749 26749 23857 0 -1 4194304 902 0 0 0 68 5 0 0 25 0 1 0 183625849 5611520 818 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134519655 0 0 4096 0 0 0 0 17 1 0 0
/proc/26763/statm: 1370 818 137 64 0 685 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 10832

Child status: 0
Real time (s): 2.37395
CPU time (s): 2.33265
CPU user time (s): 2.02369
CPU system time (s): 0.308953
CPU usage (%): 98.2599
Max. virtual memory (cumulated for all children) (KiB): 10832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.02369
system time used= 0.308953
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6488
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= 140
involuntary context switches= 74

runsolver used 0.005999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Jan  9 14:17:45 UTC 2007


IDJOB= 237925
IDBENCH= 6971
FILE ID= node41/237925-1168352264

PBS_JOBID= 3503644

Free space on /tmp= 66548 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_18.xml
COMMAND LINE= /tmp/evaluation/237925-1168352264/solver /tmp/evaluation/237925-1168352264/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-237925-1168352264 -o ROOT/results/node41/solver-237925-1168352264 -C 1800 -M 900  /tmp/evaluation/237925-1168352264/solver /tmp/evaluation/237925-1168352264/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  757a7d7d596bf08d2c2a5ff2f9f77493

RANDOM SEED= 446139129

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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:       1749520 kB
Buffers:         11692 kB
Cached:         131868 kB
SwapCached:        396 kB
Active:         186452 kB
Inactive:        68204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749520 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:           11088 kB
Writeback:           0 kB
Mapped:         120968 kB
Slab:            36904 kB
Committed_AS:  4051268 kB
PageTables:       2064 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= 66547 MiB



End job on node41 on Tue Jan  9 14:17:48 UTC 2007