Trace number 2079403

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
pcs 0.3.2UNSAT 0.158975 0.166706

DiagnosticValue
ASSIGNMENTS7

General information on the benchmark

Namecsp/lexVg/
normalized-crossword-m1c-lex-vg11-13_ext.xml
MD5SUM1e8333cdbeb4ed1922608e5d4d89f27d
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 benchmark0.084986
Satisfiable
(Un)Satisfiability was proved
Number of variables143
Number of constraints24
Maximum constraint arity13
Maximum domain size26
Number of constraints which are defined in extension24
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 2130659324
0.00/0.02	c Constructing HOME/instance-2079403-1247716732.xml  with 24 constraints
0.00/0.03	c Solving 7 backtracks
0.08/0.16	s UNSATISFIABLE
0.08/0.16	d ASSIGNMENTS 7

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-2079403-1247716732/watcher-2079403-1247716732 -o /tmp/evaluation-result-2079403-1247716732/solver-2079403-1247716732 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2130659324 HOME/instance-2079403-1247716732.xml 

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 2.07 2.06 4/82 17820
/proc/meminfo: memFree=1402392/2055920 swapFree=4192812/4192956
[pid=17820] ppid=17818 vsize=5356 CPUtime=0
/proc/17820/stat : 17820 (pcssolve) R 17818 17820 16374 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58736798 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 240577473183 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17820/statm: 1339 241 200 169 0 50 0
[pid=17821] ppid=17820 vsize=3676 CPUtime=0
/proc/17821/stat : 17821 (fgrep) R 17820 17820 16374 0 -1 4194304 135 0 0 0 0 0 0 0 22 0 1 0 58736799 3764224 102 996147200 4194304 4274172 548682068976 18446744073709551615 4241492 0 0 4096 0 0 0 0 17 1 0 0
/proc/17821/statm: 919 102 83 19 0 43 0
[pid=17822] ppid=17820 vsize=5356 CPUtime=0
/proc/17822/stat : 17822 (pcssolve) R 17820 17820 16374 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58736799 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 240577473183 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17822/statm: 1339 241 200 169 0 50 0

[startup+0.0257269 s]
/proc/loadavg: 2.05 2.07 2.06 4/82 17820
/proc/meminfo: memFree=1402392/2055920 swapFree=4192812/4192956
[pid=17820] ppid=17818 vsize=4376 CPUtime=0
/proc/17820/stat : 17820 (pcs.small) R 17818 17820 16374 0 -1 4194304 823 822 0 0 0 0 0 0 25 0 1 0 58736798 4481024 432 996147200 134512640 135095119 4294956304 18446744073709551615 134945962 0 0 4096 0 0 0 0 17 1 0 0
/proc/17820/statm: 1094 432 375 142 0 48 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4376

[startup+0.101732 s]
/proc/loadavg: 2.05 2.07 2.06 4/82 17820
/proc/meminfo: memFree=1402392/2055920 swapFree=4192812/4192956
[pid=17820] ppid=17818 vsize=4640 CPUtime=0.08
/proc/17820/stat : 17820 (pcs.small) R 17818 17820 16374 0 -1 4194304 896 822 0 0 8 0 0 0 25 0 1 0 58736798 4751360 505 996147200 134512640 135095119 4294956304 18446744073709551615 134918069 0 0 4096 0 0 0 0 17 1 0 0
/proc/17820/statm: 1160 505 390 142 0 114 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4640

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

Child status: 0
Real time (s): 0.166706
CPU time (s): 0.158975
CPU user time (s): 0.146977
CPU system time (s): 0.011998
CPU usage (%): 95.3625
Max. virtual memory (cumulated for all children) (KiB): 4640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.146977
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1727
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= 22
involuntary context switches= 20

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-16 05:58:52
IDJOB=2079403
IDBENCH=56895
IDSOLVER=733
FILE ID=node50/2079403-1247716732
PBS_JOBID= 9521342
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/lexVg/normalized-crossword-m1c-lex-vg11-13_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2079403-1247716732/watcher-2079403-1247716732 -o /tmp/evaluation-result-2079403-1247716732/solver-2079403-1247716732 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2130659324 HOME/instance-2079403-1247716732.xml

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

MD5SUM BENCH= 1e8333cdbeb4ed1922608e5d4d89f27d
RANDOM SEED=2130659324

node50.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		: 3000.231
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		: 3000.231
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:       1402872 kB
Buffers:         66564 kB
Cached:         221144 kB
SwapCached:          0 kB
Active:         358628 kB
Inactive:       220232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1402872 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1756 kB
Writeback:           0 kB
Mapped:         311556 kB
Slab:            57796 kB
Committed_AS:   787124 kB
PageTables:       3392 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= 66396 MiB
End job on node50 at 2009-07-16 05:58:52