Trace number 2116691

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
Choco2.1.1b 2009-07-16UNSAT 0.532918 0.587357

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-11.xml
MD5SUMd024b00d7492160e14e33ed9f6aa64a5
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables8
Number of constraints22
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension22
Global constraints used (with number of constraints)

Solver Data 

0.48/0.54	s UNSATISFIABLE
0.48/0.54	d AC 32
0.48/0.54	d RUNTIME 0.426
0.48/0.54	d NODES 0
0.48/0.54	d NODES/s 0
0.48/0.54	d BACKTRACKS 0
0.48/0.54	d BACKTRACKS/s 0
0.48/0.54	d CHECKS 0
0.48/0.54	d CHECKS/s 0
0.48/0.54	c UNSAT 0.426 TIME      0 NDS    191 PARSTIME      75 BUILDPB       159 CONFIG        1 RES       false RESTART       0 HEURISTIC       true RANDVAL

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-2116691-1248032120/watcher-2116691-1248032120 -o /tmp/evaluation-result-2116691-1248032120/solver-2116691-1248032120 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116691-1248032120.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979 

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 2.00 2.00 4/81 28669
/proc/meminfo: memFree=374440/2055920 swapFree=4192812/4192956
[pid=28669] ppid=28667 vsize=18576 CPUtime=0
/proc/28669/stat : 28669 (runsolver) R 28667 28669 27856 0 -1 4194368 16 0 0 0 0 0 0 0 22 0 1 0 90277045 19021824 284 996147200 4194304 4302564 548682068272 18446744073709551615 269807578407 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/28669/statm: 4644 284 249 26 0 2626 0

[startup+0.0305329 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 28669
/proc/meminfo: memFree=374440/2055920 swapFree=4192812/4192956
[pid=28669] ppid=28667 vsize=859244 CPUtime=0.01
/proc/28669/stat : 28669 (java) S 28667 28669 27856 0 -1 0 1755 0 1 0 0 1 0 0 22 0 3 0 90277045 879865856 1431 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/28669/statm: 214811 1431 605 9 0 209726 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 859244

[startup+0.10254 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 28669
/proc/meminfo: memFree=374440/2055920 swapFree=4192812/4192956
[pid=28669] ppid=28667 vsize=864104 CPUtime=0.08
/proc/28669/stat : 28669 (java) S 28667 28669 27856 0 -1 0 3765 0 1 0 6 2 0 0 22 0 9 0 90277045 884842496 3230 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28669/statm: 216026 3230 1692 9 0 210495 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864104

[startup+0.30257 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 28669
/proc/meminfo: memFree=374440/2055920 swapFree=4192812/4192956
[pid=28669] ppid=28667 vsize=864416 CPUtime=0.28
/proc/28669/stat : 28669 (java) S 28667 28669 27856 0 -1 0 5046 0 1 0 25 3 0 0 22 0 9 0 90277045 885161984 4460 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28669/statm: 216104 4460 1891 9 0 210573 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 864416

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

[startup+0.501583 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 28669
/proc/meminfo: memFree=374440/2055920 swapFree=4192812/4192956
[pid=28669] ppid=28667 vsize=864544 CPUtime=0.48
/proc/28669/stat : 28669 (java) S 28667 28669 27856 0 -1 0 6603 0 1 0 44 4 0 0 22 0 9 0 90277045 885293056 5984 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28669/statm: 216136 5984 1965 9 0 210605 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 864544

Child status: 0
Real time (s): 0.587357
CPU time (s): 0.532918
CPU user time (s): 0.479927
CPU system time (s): 0.052991
CPU usage (%): 90.7315
Max. virtual memory (cumulated for all children) (KiB): 864544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.479927
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6774
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 264
involuntary context switches= 179

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node81 at 2009-07-19 21:35:20
IDJOB=2116691
IDBENCH=57519
IDSOLVER=780
FILE ID=node81/2116691-1248032120
PBS_JOBID= 9528892
Free space on /tmp= 126624 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-11.xml
COMMAND LINE= java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file BENCHNAME -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2116691-1248032120/watcher-2116691-1248032120 -o /tmp/evaluation-result-2116691-1248032120/solver-2116691-1248032120 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116691-1248032120.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979

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

MD5SUM BENCH= d024b00d7492160e14e33ed9f6aa64a5
RANDOM SEED=1887794622

node81.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		: 3000.233
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		: 3000.233
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        374920 kB
Buffers:        103812 kB
Cached:         815956 kB
SwapCached:          0 kB
Active:         934360 kB
Inactive:       651504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        374920 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4956 kB
Writeback:           0 kB
Mapped:         683916 kB
Slab:            78920 kB
Committed_AS:  1328212 kB
PageTables:       3140 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126620 MiB
End job on node81 at 2009-07-19 21:35:20