Trace number 2081416

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 0.420935 0.428276

DiagnosticValue
ASSIGNMENTS275

General information on the benchmark

Namecsp/queenAttacking/
normalized-queenAttacking-3.xml
MD5SUM7c7d2bd47e49bff016e6945f19c1acba
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables10
Number of constraints40
Maximum constraint arity2
Maximum domain size9
Number of constraints which are defined in extension0
Number of constraints which are defined in intension40
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has operations which may create big domains
0.00/0.01	c big-domain mode
0.18/0.21	c Seed is 730399525
0.18/0.21	c Constructing HOME/instance-2081416-1247719567.xml 
0.18/0.21	c deduced all_different(V2,V5,V7,V0)
0.18/0.21	c deduced all_different(V3,V5,V7,V9,V1)
0.18/0.21	c deduced all_different(V1,V6,V8,V4)
0.18/0.21	c  with 327 constraints
0.18/0.21	c Solving 275 backtracks 5 restarts
0.38/0.42	s UNSATISFIABLE
0.38/0.42	d ASSIGNMENTS 275

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-2081416-1247719567/watcher-2081416-1247719567 -o /tmp/evaluation-result-2081416-1247719567/solver-2081416-1247719567 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 730399525 HOME/instance-2081416-1247719567.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: 1.91 1.95 1.98 4/72 14164
/proc/meminfo: memFree=1364240/2055920 swapFree=4192812/4192956
[pid=14164] ppid=14162 vsize=5356 CPUtime=0
/proc/14164/stat : 14164 (pcssolve) R 14162 14164 10627 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59023690 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14164/statm: 1339 241 200 169 0 50 0
[pid=14165] ppid=14164 vsize=3676 CPUtime=0
/proc/14165/stat : 14165 (fgrep) R 14164 14164 10627 0 -1 4194304 122 0 0 0 0 0 0 0 22 0 1 0 59023690 3764224 89 996147200 4194304 4274172 548682068976 18446744073709551615 252429407680 0 0 4096 0 0 0 0 17 1 0 0
/proc/14165/statm: 919 89 71 19 0 43 0

[startup+0.0746799 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 14164
/proc/meminfo: memFree=1364240/2055920 swapFree=4192812/4192956
[pid=14164] ppid=14162 vsize=4780 CPUtime=0.05
/proc/14164/stat : 14164 (pcs.big) R 14162 14164 10627 0 -1 4194304 924 805 0 0 5 0 0 0 18 0 1 0 59023690 4894720 533 996147200 134512640 135215973 4294956304 18446744073709551615 9813108 0 0 4096 0 0 0 0 17 1 0 0
/proc/14164/statm: 1195 533 423 171 0 120 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4780

[startup+0.102677 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 14164
/proc/meminfo: memFree=1364240/2055920 swapFree=4192812/4192956
[pid=14164] ppid=14162 vsize=4780 CPUtime=0.08
/proc/14164/stat : 14164 (pcs.big) R 14162 14164 10627 0 -1 4194304 936 805 0 0 8 0 0 0 18 0 1 0 59023690 4894720 545 996147200 134512640 135215973 4294956304 18446744073709551615 134532715 0 0 4096 0 0 0 0 17 1 0 0
/proc/14164/statm: 1195 545 423 171 0 120 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4780

[startup+0.302697 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 14164
/proc/meminfo: memFree=1364240/2055920 swapFree=4192812/4192956
[pid=14164] ppid=14162 vsize=5040 CPUtime=0.28
/proc/14164/stat : 14164 (pcs.big) R 14162 14164 10627 0 -1 4194304 1011 805 0 0 28 0 0 0 19 0 1 0 59023690 5160960 620 996147200 134512640 135215973 4294956304 18446744073709551615 134902593 0 0 4096 0 0 0 0 17 1 0 0
/proc/14164/statm: 1260 620 423 171 0 185 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5040

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

[startup+0.402708 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 14164
/proc/meminfo: memFree=1364240/2055920 swapFree=4192812/4192956
[pid=14164] ppid=14162 vsize=5332 CPUtime=0.38
/proc/14164/stat : 14164 (pcs.big) R 14162 14164 10627 0 -1 4194304 1058 805 0 0 38 0 0 0 20 0 1 0 59023690 5459968 667 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/14164/statm: 1333 667 423 171 0 258 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 5332

Child status: 0
Real time (s): 0.428276
CPU time (s): 0.420935
CPU user time (s): 0.413937
CPU system time (s): 0.006998
CPU usage (%): 98.2859
Max. virtual memory (cumulated for all children) (KiB): 5332

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.413937
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1877
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= 21

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-16 06:46:07
IDJOB=2081416
IDBENCH=57396
IDSOLVER=733
FILE ID=node12/2081416-1247719567
PBS_JOBID= 9521380
Free space on /tmp= 66268 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/queenAttacking/normalized-queenAttacking-3.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081416-1247719567/watcher-2081416-1247719567 -o /tmp/evaluation-result-2081416-1247719567/solver-2081416-1247719567 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 730399525 HOME/instance-2081416-1247719567.xml

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

MD5SUM BENCH= 7c7d2bd47e49bff016e6945f19c1acba
RANDOM SEED=730399525

node12.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		: 3000.240
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		: 3000.240
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:       1364720 kB
Buffers:         81828 kB
Cached:         375948 kB
SwapCached:          0 kB
Active:         233428 kB
Inactive:       376084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1364720 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2064 kB
Writeback:           0 kB
Mapped:         163256 kB
Slab:            66748 kB
Committed_AS:   647176 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= 66264 MiB
End job on node12 at 2009-07-16 06:46:07