Trace number 2089686

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
bpsolver 09UNSAT 0.180972 0.18795

General information on the benchmark

Namecsp/composed-25-1-2/
normalized-composed-25-1-2-9_ext.xml
MD5SUM33c6fb029f81e936192ed55ea3e5048c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.018996
Satisfiable
(Un)Satisfiability was proved
Number of variables33
Number of constraints224
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension224
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2089686-1247390301)
0.00/0.16	c Converted in 43 ms
0.15/0.17	c solving(HOME/instance-2089686-1247390301,1800000)
0.15/0.17	c solving(HOME/instance-2089686-1247390301,1800000)
0.15/0.18	c (ffc_inout)
0.15/0.18	s UNSATISFIABLE
0.15/0.18	
0.15/0.18	c Time=23 ms Backtracks=7
0.15/0.18

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2089686-1247390301/watcher-2089686-1247390301 -o /tmp/evaluation-result-2089686-1247390301/solver-2089686-1247390301 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2089686-1247390301 1800 

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): 2000 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


[startup+0 s]
/proc/loadavg: 2.05 2.02 2.00 4/73 596
/proc/meminfo: memFree=1872336/2055920 swapFree=4192812/4192956
[pid=596] ppid=594 vsize=7000 CPUtime=0
/proc/596/stat : 596 (bprolog) R 594 596 30645 0 -1 4194304 405 0 0 0 0 0 0 0 20 0 1 0 26093997 7168000 123 996147200 134512640 135105188 4294956096 18446744073709551615 134530919 0 0 4096 0 0 0 0 17 1 0 0
/proc/596/statm: 1750 123 72 144 0 1234 0

[startup+0.162776 s]
/proc/loadavg: 2.05 2.02 2.00 4/73 596
/proc/meminfo: memFree=1872336/2055920 swapFree=4192812/4192956
[pid=596] ppid=594 vsize=62204 CPUtime=0.15
/proc/596/stat : 596 (bprolog) R 594 596 30645 0 -1 4194304 1107 0 0 0 6 9 0 0 20 0 1 0 26093997 63696896 818 996147200 134512640 135105188 4294956096 18446744073709551615 134577151 0 0 4096 2 0 0 0 17 1 0 0
/proc/596/statm: 15551 818 179 144 0 15035 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 62204

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

[startup+0.162776 s]
/proc/loadavg: 2.05 2.02 2.00 4/73 596
/proc/meminfo: memFree=1872336/2055920 swapFree=4192812/4192956
[pid=596] ppid=594 vsize=62204 CPUtime=0.15
/proc/596/stat : 596 (bprolog) R 594 596 30645 0 -1 4194304 1107 0 0 0 6 9 0 0 20 0 1 0 26093997 63696896 818 996147200 134512640 135105188 4294956096 18446744073709551615 134577151 0 0 4096 2 0 0 0 17 1 0 0
/proc/596/statm: 15551 818 179 144 0 15035 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 62204

Child status: 0
Real time (s): 0.18795
CPU time (s): 0.180972
CPU user time (s): 0.082987
CPU system time (s): 0.097985
CPU usage (%): 96.2873
Max. virtual memory (cumulated for all children) (KiB): 62204

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.082987
system time used= 0.097985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1355
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= 4
involuntary context switches= 32

runsolver used 0.006998 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-07-12 11:18:21
IDJOB=2089686
IDBENCH=59597
IDSOLVER=770
FILE ID=node44/2089686-1247390301
PBS_JOBID= 9507292
Free space on /tmp= 66388 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/composed-25-1-2/normalized-composed-25-1-2-9_ext.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2089686-1247390301/watcher-2089686-1247390301 -o /tmp/evaluation-result-2089686-1247390301/solver-2089686-1247390301 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2089686-1247390301 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 33c6fb029f81e936192ed55ea3e5048c
RANDOM SEED=402456568

node44.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.219
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		: 3000.219
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:       1872816 kB
Buffers:         23456 kB
Cached:          87316 kB
SwapCached:          0 kB
Active:          99424 kB
Inactive:        33744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1872816 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1368 kB
Writeback:           0 kB
Mapped:          33112 kB
Slab:            35240 kB
Committed_AS:   311580 kB
PageTables:       1748 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= 66384 MiB
End job on node44 at 2009-07-12 11:18:21