Trace number 2068458

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 0.944855 0.980886

DiagnosticValue
ASSIGNMENTS24

General information on the benchmark

Namecsp/pseudo/primesDimacs/
normalized-bf-1355-075.xml
MD5SUMb8a060a50997549131721c2244d1d2c8
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.704891
Satisfiable
(Un)Satisfiability was proved
Number of variables4360
Number of constraints8953
Maximum constraint arity6
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8953
Global constraints used (with number of constraints)

Solver Data 

0.00/0.04	c has operations which may create big domains
0.00/0.04	c big-domain mode
0.00/0.05	c Seed is 1869012861
0.00/0.05	c Constructing HOME/instance-2068458-1247706595.xml  with 25107 constraints
0.55/0.61	c Solving 24 backtracks 1 restarts
0.84/0.97	s UNSATISFIABLE
0.84/0.97	d ASSIGNMENTS 24

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-2068458-1247706595/watcher-2068458-1247706595 -o /tmp/evaluation-result-2068458-1247706595/solver-2068458-1247706595 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1869012861 HOME/instance-2068458-1247706595.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: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=18576 CPUtime=0
/proc/11565/stat : 11565 (runsolver) R 11563 11565 9811 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 57723442 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 259415141671 0 0 4096 24578 0 0 0 17 1 0 0
/proc/11565/statm: 4644 284 249 26 0 2626 0

[startup+0.0250411 s]
/proc/loadavg: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=5356 CPUtime=0
/proc/11565/stat : 11565 (pcssolve) S 11563 11565 9811 0 -1 4194304 339 317 0 0 0 0 0 0 19 0 1 0 57723442 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 259415139140 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/11565/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101503 s]
/proc/loadavg: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=6128 CPUtime=0.05
/proc/11565/stat : 11565 (pcs.big) R 11563 11565 9811 0 -1 4194304 1237 826 0 0 5 0 0 0 20 0 1 0 57723442 6275072 762 996147200 134512640 135215973 4294956304 18446744073709551615 4159347601 0 0 4096 0 0 0 0 17 0 0 0
/proc/11565/statm: 1532 762 385 171 0 457 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6128

[startup+0.301543 s]
/proc/loadavg: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=8992 CPUtime=0.24
/proc/11565/stat : 11565 (pcs.big) R 11563 11565 9811 0 -1 4194304 2094 826 0 0 24 0 0 0 21 0 1 0 57723442 9207808 1354 996147200 134512640 135215973 4294956304 18446744073709551615 134761786 0 0 4096 0 0 0 0 17 0 0 0
/proc/11565/statm: 2248 1354 385 171 0 1173 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 8992

[startup+0.701627 s]
/proc/loadavg: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=18056 CPUtime=0.64
/proc/11565/stat : 11565 (pcs.big) R 11563 11565 9811 0 -1 4194304 5236 826 0 0 63 1 0 0 25 0 1 0 57723442 18489344 3420 996147200 134512640 135215973 4294956304 18446744073709551615 134585694 0 0 4096 0 0 0 0 17 0 0 0
/proc/11565/statm: 4514 3420 406 171 0 3439 0
Current children cumulated CPU time (s) 0.64
Current children cumulated vsize (KiB) 18056

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

[startup+0.90166 s]
/proc/loadavg: 2.00 2.05 2.06 4/82 11565
/proc/meminfo: memFree=1442104/2055920 swapFree=4192812/4192956
[pid=11565] ppid=11563 vsize=21072 CPUtime=0.84
/proc/11565/stat : 11565 (pcs.big) R 11563 11565 9811 0 -1 4194304 6243 826 0 0 82 2 0 0 25 0 1 0 57723442 21577728 4007 996147200 134512640 135215973 4294956304 18446744073709551615 134588292 0 0 4096 0 0 0 0 17 0 0 0
/proc/11565/statm: 5268 4007 409 171 0 4193 0
Current children cumulated CPU time (s) 0.84
Current children cumulated vsize (KiB) 21072

Child status: 0
Real time (s): 0.980886
CPU time (s): 0.944855
CPU user time (s): 0.907861
CPU system time (s): 0.036994
CPU usage (%): 96.3267
Max. virtual memory (cumulated for all children) (KiB): 21072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.907861
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7091
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= 25
involuntary context switches= 39

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-16 03:09:55
IDJOB=2068458
IDBENCH=54867
IDSOLVER=733
FILE ID=node42/2068458-1247706595
PBS_JOBID= 9521227
Free space on /tmp= 66292 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/pseudo/primesDimacs/normalized-bf-1355-075.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2068458-1247706595/watcher-2068458-1247706595 -o /tmp/evaluation-result-2068458-1247706595/solver-2068458-1247706595 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1869012861 HOME/instance-2068458-1247706595.xml

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

MD5SUM BENCH= b8a060a50997549131721c2244d1d2c8
RANDOM SEED=1869012861

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		: 3000.283
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		: 3000.283
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:       1442584 kB
Buffers:         66584 kB
Cached:         306328 kB
SwapCached:          0 kB
Active:         214716 kB
Inactive:       329920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1442584 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3096 kB
Writeback:           0 kB
Mapped:         192216 kB
Slab:            53492 kB
Committed_AS:   727820 kB
PageTables:       2152 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= 66288 MiB
End job on node42 at 2009-07-16 03:09:56