Trace number 248763

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 0.019996 0.0210401

General information on the benchmark

Nameprimes/primes-25/
primes-25-20-2-1.xml
MD5SUM5ea2b9cecba6ca61591010afe2356843
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 benchmark0.019996
SatisfiableYES
(Un)Satisfiability was proved
Number of variables100
Number of constraints20
Maximum constraint arity3
Maximum domain size96
Number of constraints which are defined in extension0
Number of constraints which are defined in intension20
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	
0.01	Time: 2
0.01	
c 
c 
c 
c solution file
c 
c 

SAT
2 37 2 2 67 31 34 61 97 79 2 2 2 29 2 2 2 6 2 37 2 34 2 2 87 13 2 89 61 31 11 5 2 2 2 2 67 17 2 2 11 92 79 83 2 2 89 2 2 2 2 2 2 2 2 2 41 2 79 2 2 2 2 2 2 2 2 2 43 2 2 73 2 2 2 2 2 2 2 2 2 2 2 2 43 2 2 2 2 2 2 2 2 2 2 2 3 36 2 47 
c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/248763-1168401136/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/node76/watcher-248763-1168401136 -o ROOT/results/node76/solver-248763-1168401136 -C 1800 -M 900 /tmp/evaluation/248763-1168401136/Complete/Ordinary/solver /tmp/evaluation/248763-1168401136/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: 1.96 2.00 1.89 3/86 20628
/proc/meminfo: memFree=1032328/2055888 swapFree=4095388/4096564
[pid=20627] ppid=20625 vsize=53476 CPUtime=0
/proc/20627/stat : 20627 (bprolog) R 20625 20627 20104 0 -1 4194304 515 0 0 0 0 0 0 0 21 0 1 0 188510794 54759424 236 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134531678 0 0 4096 2 0 0 0 17 1 0 0
/proc/20627/statm: 13369 237 124 90 0 12906 0

Child status: 0
Real time (s): 0.0210401
CPU time (s): 0.019996
CPU user time (s): 0.012998
CPU system time (s): 0.006998
CPU usage (%): 95.0376
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.012998
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 798
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= 7

runsolver used 0.002999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Wed Jan 10 03:52:17 UTC 2007


IDJOB= 248763
IDBENCH= 11732
FILE ID= node76/248763-1168401136

PBS_JOBID= 3522987

Free space on /tmp= 66651 MiB

BENCH NAME= HOME/pub/bench/CPAI06/primes/primes-25/primes-25-20-2-1.xml
COMMAND LINE= /tmp/evaluation/248763-1168401136/Complete/Ordinary/solver /tmp/evaluation/248763-1168401136/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node76/convwatcher-248763-1168401136 -o ROOT/results/node76/conversion-248763-1168401136 -C 600 -M 900 /tmp/evaluation/248763-1168401136/Complete/Ordinary/conversion /tmp/evaluation/248763-1168401136/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-248763-1168401136 -o ROOT/results/node76/solver-248763-1168401136 -C 1800 -M 900  /tmp/evaluation/248763-1168401136/Complete/Ordinary/solver /tmp/evaluation/248763-1168401136/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  5ea2b9cecba6ca61591010afe2356843

RANDOM SEED= 150507938

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1033000 kB
Buffers:         44964 kB
Cached:         291660 kB
SwapCached:        384 kB
Active:         713124 kB
Inactive:       250596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1033000 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            1264 kB
Writeback:           0 kB
Mapped:         643928 kB
Slab:            43592 kB
Committed_AS:  7614908 kB
PageTables:       3056 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66651 MiB



End job on node76 on Wed Jan 10 03:52:17 UTC 2007