Trace number 212478

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
BPrologCSPSolver70a 2006-12-13SAT 0.470928 0.483257

General information on the benchmark

NamepseudoSeries/mpsReduced/
mps-red-qnet1.xml
MD5SUM164290b3ac87a118a6cec0fff728a368
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.470928
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables5380
Number of constraints962
Maximum constraint arity77
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension962
Global constraints used (with number of constraints)

Solver Data (download as text)

0.47	
0.47	Time: 418
0.47	
c 
c 
c 
c solution file
c 
c 

SAT
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c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/212478-1168220370/unknown)

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node1/watcher-212478-1168220370 -o ROOT/results/node1/solver-212478-1168220370 -C 1800 -M 900 /tmp/evaluation/212478-1168220370/Complete/Ordinary/solver /tmp/evaluation/212478-1168220370/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: 2.00 2.01 2.00 5/86 2027
/proc/meminfo: memFree=1563544/2055920 swapFree=4165612/4192956
[pid=2026] ppid=2024 vsize=53472 CPUtime=0
/proc/2026/stat : 2026 (bprolog) R 2024 2026 32736 0 -1 4194304 487 0 0 0 0 0 0 0 20 0 1 0 170433032 54755328 206 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134550336 0 0 4096 2 0 0 0 17 1 0 0
/proc/2026/statm: 13368 206 123 90 0 12906 0

[startup+0.103452 s]
/proc/loadavg: 2.00 2.01 2.00 5/86 2027
/proc/meminfo: memFree=1563544/2055920 swapFree=4165612/4192956
[pid=2026] ppid=2024 vsize=61640 CPUtime=0.08
/proc/2026/stat : 2026 (bprolog) R 2024 2026 32736 0 -1 4194304 2237 0 0 0 8 0 0 0 20 0 1 0 170433032 63119360 1953 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134552117 0 0 4096 2 0 0 0 17 1 0 0
/proc/2026/statm: 15410 1953 158 90 0 14948 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 61640

Child status: 0
Real time (s): 0.483257
CPU time (s): 0.470928
CPU user time (s): 0.432934
CPU system time (s): 0.037994
CPU usage (%): 97.4488
Max. virtual memory (cumulated for all children) (KiB): 72656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.432934
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4993
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= 11
involuntary context switches= 18

runsolver used 0.001999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Mon Jan  8 01:39:30 UTC 2007


IDJOB= 212478
IDBENCH= 4774
FILE ID= node1/212478-1168220370

PBS_JOBID= 3480624

Free space on /tmp= 66306 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/mpsReduced/mps-red-qnet1.xml
COMMAND LINE= /tmp/evaluation/212478-1168220370/Complete/Ordinary/solver /tmp/evaluation/212478-1168220370/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node1/convwatcher-212478-1168220370 -o ROOT/results/node1/conversion-212478-1168220370 -C 600 -M 900 /tmp/evaluation/212478-1168220370/Complete/Ordinary/conversion /tmp/evaluation/212478-1168220370/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-212478-1168220370 -o ROOT/results/node1/solver-212478-1168220370 -C 1800 -M 900  /tmp/evaluation/212478-1168220370/Complete/Ordinary/solver /tmp/evaluation/212478-1168220370/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  164290b3ac87a118a6cec0fff728a368

RANDOM SEED= 941464018

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:       1564024 kB
Buffers:         45444 kB
Cached:         312492 kB
SwapCached:       3620 kB
Active:         228156 kB
Inactive:       207080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1564024 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:            2148 kB
Writeback:           0 kB
Mapped:          90672 kB
Slab:            41420 kB
Committed_AS:  4958424 kB
PageTables:       2372 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= 66306 MiB



End job on node1 on Mon Jan  8 01:39:33 UTC 2007