Trace number 2066467

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 4.09438 4.13686

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/pseudo/ssa/
normalized-ssa-6288-047.xml
MD5SUMdd00c5def4c55b065ec455ee1bcb23cb
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 benchmark2.72858
Satisfiable
(Un)Satisfiability was proved
Number of variables20820
Number of constraints44644
Maximum constraint arity6
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44644
Global constraints used (with number of constraints)

Solver Data 

0.02/0.06	c has operations which may create big domains
0.02/0.06	c big-domain mode
0.02/0.06	c Seed is 421925847
0.02/0.07	c Constructing HOME/instance-2066467-1247704928.xml  with 129055 constraints
3.15/3.23	c Solving 0 backtracks
4.04/4.13	s UNSATISFIABLE
4.04/4.13	d ASSIGNMENTS 0

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-2066467-1247704928/watcher-2066467-1247704928 -o /tmp/evaluation-result-2066467-1247704928/solver-2066467-1247704928 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 421925847 HOME/instance-2066467-1247704928.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: 2.02 2.01 2.00 4/81 13941
/proc/meminfo: memFree=1363472/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=5356 CPUtime=0
/proc/13941/stat : 13941 (pcssolve) R 13939 13941 13123 0 -1 4194304 269 0 0 0 0 0 0 0 20 0 1 0 57559672 5484544 237 996147200 4194304 4889804 548682068800 18446744073709551615 240472462049 0 0 4100 65536 0 0 0 17 1 0 0
/proc/13941/statm: 1339 237 197 169 0 50 0

[startup+0.0466999 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 13941
/proc/meminfo: memFree=1363472/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=5356 CPUtime=0.02
/proc/13941/stat : 13941 (pcssolve) S 13939 13941 13123 0 -1 4194304 367 649 0 0 0 0 1 1 22 0 1 0 57559672 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 240472613700 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13941/statm: 1339 243 202 169 0 50 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5356

[startup+0.1017 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 13941
/proc/meminfo: memFree=1363472/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=5704 CPUtime=0.06
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 1102 826 0 0 2 0 3 1 18 0 1 0 57559672 5840896 711 996147200 134512640 135215973 4294956304 18446744073709551615 134770353 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 1426 711 361 171 0 351 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5704

[startup+0.301718 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 13941
/proc/meminfo: memFree=1363472/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=11772 CPUtime=0.26
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 2835 826 0 0 21 1 3 1 19 0 1 0 57559672 12054528 1924 996147200 134512640 135215973 4294956304 18446744073709551615 134761742 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 2943 1924 385 171 0 1868 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 11772

[startup+0.701753 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 13941
/proc/meminfo: memFree=1363472/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=17836 CPUtime=0.67
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 4743 826 0 0 60 3 3 1 22 0 1 0 57559672 18264064 3153 996147200 134512640 135215973 4294956304 18446744073709551615 4158918244 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 4459 3153 385 171 0 3384 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 17836

[startup+1.50182 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 13947
/proc/meminfo: memFree=1348552/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=25652 CPUtime=1.46
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 7532 826 0 0 138 4 3 1 25 0 1 0 57559672 26267648 5245 996147200 134512640 135215973 4294956304 18446744073709551615 134898243 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 6413 5245 385 171 0 5338 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 25652

[startup+3.10196 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 13947
/proc/meminfo: memFree=1336392/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=45168 CPUtime=3.05
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 14164 826 0 0 294 7 3 1 25 0 1 0 57559672 46252032 9585 996147200 134512640 135215973 4294956304 18446744073709551615 134689532 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 11292 9585 385 171 0 10217 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 45168

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

[startup+3.90204 s]
/proc/loadavg: 2.02 2.01 2.00 4/82 13947
/proc/meminfo: memFree=1325704/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=69684 CPUtime=3.83
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 23555 826 0 0 368 11 3 1 25 0 1 0 57559672 71356416 16331 996147200 134512640 135215973 4294956304 18446744073709551615 134599825 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 17421 16331 406 171 0 16346 0
Current children cumulated CPU time (s) 3.83
Current children cumulated vsize (KiB) 69684

[startup+4.10206 s]
/proc/loadavg: 2.02 2.01 2.00 4/82 13947
/proc/meminfo: memFree=1325704/2055920 swapFree=4191900/4192956
[pid=13941] ppid=13939 vsize=55716 CPUtime=4.04
/proc/13941/stat : 13941 (pcs.big) R 13939 13941 13123 0 -1 4194304 23571 826 0 0 388 12 3 1 25 0 1 0 57559672 57053184 12871 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/13941/statm: 13929 12871 408 171 0 12854 0
Current children cumulated CPU time (s) 4.04
Current children cumulated vsize (KiB) 55716

Child status: 0
Real time (s): 4.13686
CPU time (s): 4.09438
CPU user time (s): 3.9484
CPU system time (s): 0.145977
CPU usage (%): 98.9731
Max. virtual memory (cumulated for all children) (KiB): 69684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9484
system time used= 0.145977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24400
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= 177

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node15 at 2009-07-16 02:42:08
IDJOB=2066467
IDBENCH=54522
IDSOLVER=733
FILE ID=node15/2066467-1247704928
PBS_JOBID= 9521279
Free space on /tmp= 66300 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/pseudo/ssa/normalized-ssa-6288-047.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2066467-1247704928/watcher-2066467-1247704928 -o /tmp/evaluation-result-2066467-1247704928/solver-2066467-1247704928 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 421925847 HOME/instance-2066467-1247704928.xml

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

MD5SUM BENCH= dd00c5def4c55b065ec455ee1bcb23cb
RANDOM SEED=421925847

node15.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		: 3000.220
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		: 3000.220
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:       1363952 kB
Buffers:         79284 kB
Cached:         501020 kB
SwapCached:        416 kB
Active:         216944 kB
Inactive:       406944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1363952 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            8636 kB
Writeback:           0 kB
Mapped:          63276 kB
Slab:            53124 kB
Committed_AS:   874796 kB
PageTables:       2000 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= 66296 MiB
End job on node15 at 2009-07-16 02:42:12