Trace number 1065539

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 2008-06-27UNSAT 0.380941 0.39209

General information on the benchmark

Namecsp/jnhUnsat/
normalized-jnh06_ext.xml
MD5SUMc8dd7ae625012716d50ff163c5676529
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.044992
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints850
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension850
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.02	c bpsolver version 6.27.2008
0.00/0.02	c converting(HOME/instance-1065539-1215146804)
0.09/0.16	c Converted in 40 ms
0.09/0.16	c solving(HOME/instance-1065539-1215146804,1800000)
0.28/0.39	c (ffc_inout)
0.28/0.39	s UNSATISFIABLE
0.28/0.39	
0.28/0.39	c Time=224 ms
0.28/0.39

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1065539-1215146804/watcher-1065539-1215146804 -o /tmp/evaluation-result-1065539-1215146804/solver-1065539-1215146804 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solver HOME/instance-1065539-1215146804 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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 24048
/proc/meminfo: memFree=1728800/2055920 swapFree=4180096/4192956
[pid=24048] ppid=24046 vsize=18572 CPUtime=0
/proc/24048/stat : 24048 (runsolver) R 24046 24048 22283 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 1993652844 19017728 292 996147200 4194304 4296836 548682068496 18446744073709551615 259415141671 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24048/statm: 4643 292 257 25 0 2626 0

[startup+0.058461 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 24048
/proc/meminfo: memFree=1728800/2055920 swapFree=4180096/4192956
[pid=24048] ppid=24046 vsize=56080 CPUtime=0.04
/proc/24048/stat : 24048 (bprolog) R 24046 24048 22283 0 -1 4194304 1102 0 0 0 2 2 0 0 21 0 1 0 1993652844 57425920 815 996147200 134512640 134990860 4294956112 18446744073709551615 13193912 0 0 4096 2 0 0 0 17 1 0 0
/proc/24048/statm: 14020 815 176 116 0 13531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 56080

[startup+0.101463 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 24048
/proc/meminfo: memFree=1728800/2055920 swapFree=4180096/4192956
[pid=24048] ppid=24046 vsize=56080 CPUtime=0.09
/proc/24048/stat : 24048 (bprolog) R 24046 24048 22283 0 -1 4194304 1102 0 0 0 4 5 0 0 21 0 1 0 1993652844 57425920 815 996147200 134512640 134990860 4294956112 18446744073709551615 12823521 0 0 4096 2 0 0 0 17 1 0 0
/proc/24048/statm: 14020 815 176 116 0 13531 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 56080

[startup+0.301486 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 24048
/proc/meminfo: memFree=1728800/2055920 swapFree=4180096/4192956
[pid=24048] ppid=24046 vsize=66316 CPUtime=0.28
/proc/24048/stat : 24048 (bprolog) R 24046 24048 22283 0 -1 4194304 1298 0 0 0 18 10 0 0 23 0 2 0 1993652844 67907584 1008 996147200 134512640 134990860 4294956112 18446744073709551615 134629713 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24048/statm: 16579 1008 191 116 0 16090 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 66316

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

Child status: 0
Real time (s): 0.39209
CPU time (s): 0.380941
CPU user time (s): 0.278957
CPU system time (s): 0.101984
CPU usage (%): 97.1565
Max. virtual memory (cumulated for all children) (KiB): 66316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.278957
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1298
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= 39

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node42 at 2008-07-04 06:46:44
IDJOB=1065539
IDBENCH=55072
IDSOLVER=347
FILE ID=node42/1065539-1215146804
PBS_JOBID= 7877327
Free space on /tmp= 66552 MiB

SOLVER NAME= bpsolver 2008-06-27
BENCH NAME= CPAI08/csp/jnhUnsat/normalized-jnh06_ext.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1065539-1215146804/watcher-1065539-1215146804 -o /tmp/evaluation-result-1065539-1215146804/solver-1065539-1215146804 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solver HOME/instance-1065539-1215146804 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c8dd7ae625012716d50ff163c5676529
RANDOM SEED=657495605

node42.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		: 3000.214
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		: 3000.214
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:       1729216 kB
Buffers:         39564 kB
Cached:         141540 kB
SwapCached:       6848 kB
Active:         187504 kB
Inactive:        79460 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1729216 kB
SwapTotal:     4192956 kB
SwapFree:      4180096 kB
Dirty:            1352 kB
Writeback:           0 kB
Mapped:          99660 kB
Slab:            44552 kB
Committed_AS:  4275592 kB
PageTables:       2076 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= 66548 MiB
End job on node42 at 2008-07-04 06:46:44