Trace number 195594

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 2006-12-13UNSAT 0.264959 0.271263

General information on the benchmark

Namerlfap/rlfapGraphs/
graph7.xml
MD5SUM6894350c4fec852e84b11a6ff9a12c54
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 benchmark0.264959
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables400
Number of constraints2170
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2170
Global constraints used (with number of constraints)

Solver Data (download as text)

0.26	
0.26	Time: 243
0.26	
c 
c 
c 
c solution file
c 
c 

UNSAT

c 
c 
c 
c conversion script
c 
c 

converting(/tmp/evaluation/195594-1168113240/unknown)

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/node26/watcher-195594-1168113240 -o ROOT/results/node26/solver-195594-1168113240 -C 1800 -M 900 /tmp/evaluation/195594-1168113240/Complete/Ordinary/solver /tmp/evaluation/195594-1168113240/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: 1.99 1.55 1.74 5/95 31327
/proc/meminfo: memFree=1150904/2055920 swapFree=4192812/4192956
[pid=31326] ppid=31324 vsize=18540 CPUtime=0
/proc/31326/stat : 31326 (runsolver) R 31324 31326 30954 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 159718766 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 269028486439 0 0 4096 24578 0 0 0 17 1 0 0
/proc/31326/statm: 4635 279 244 17 0 2626 0

[startup+0.107656 s]
/proc/loadavg: 1.99 1.55 1.74 5/95 31327
/proc/meminfo: memFree=1150904/2055920 swapFree=4192812/4192956
[pid=31326] ppid=31324 vsize=61768 CPUtime=0.09
/proc/31326/stat : 31326 (bprolog) R 31324 31326 30954 0 -1 4194304 1402 0 0 0 9 0 0 0 20 0 1 0 159718766 63250432 1117 18446744073709551615 134512640 134884608 4294956576 18446744073709551615 134554069 0 0 4096 2 0 0 0 17 1 0 0
/proc/31326/statm: 15442 1117 173 90 0 14980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61768

Child status: 0
Real time (s): 0.271263
CPU time (s): 0.264959
CPU user time (s): 0.254961
CPU system time (s): 0.009998
CPU usage (%): 97.676
Max. virtual memory (cumulated for all children) (KiB): 61768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.254961
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1429
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= 6
involuntary context switches= 25

runsolver used 0.003999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node26 on Sat Jan  6 19:54:02 UTC 2007


IDJOB= 195594
IDBENCH= 3289
FILE ID= node26/195594-1168113240

PBS_JOBID= 3477394

Free space on /tmp= 66037 MiB

BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapGraphs/graph7.xml
COMMAND LINE= /tmp/evaluation/195594-1168113240/Complete/Ordinary/solver /tmp/evaluation/195594-1168113240/unknown 1800
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node26/convwatcher-195594-1168113240 -o ROOT/results/node26/conversion-195594-1168113240 -C 600 -M 900 /tmp/evaluation/195594-1168113240/Complete/Ordinary/conversion /tmp/evaluation/195594-1168113240/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-195594-1168113240 -o ROOT/results/node26/solver-195594-1168113240 -C 1800 -M 900  /tmp/evaluation/195594-1168113240/Complete/Ordinary/solver /tmp/evaluation/195594-1168113240/unknown 1800

META MD5SUM SOLVER= b53ab06f245aa5e62684a7a0a4388ade
MD5SUM BENCH=  6894350c4fec852e84b11a6ff9a12c54

RANDOM SEED= 681749933

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		: 3000.236
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		: 3000.236
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:       1151576 kB
Buffers:         42748 kB
Cached:         654320 kB
SwapCached:          0 kB
Active:         208560 kB
Inactive:       621624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1151576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          262812 kB
Writeback:           0 kB
Mapped:         158692 kB
Slab:            58708 kB
Committed_AS:  3172696 kB
PageTables:       2480 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= 65985 MiB



End job on node26 on Sat Jan  6 19:54:05 UTC 2007