Trace number 1092669

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_impwdeg 2008-06-26UNSAT 0.665898 0.682423

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-3.xml
MD5SUMaa253ebcb4b244774c05961391955ab9
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 benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables12
Number of constraints75
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension75
Global constraints used (with number of constraints)

Solver Data (download as text)

0.59/0.67	s UNSATISFIABLE
0.59/0.67	d ASSIGNMENTS 0
0.59/0.67	c UNSAT 583 TIME      0 NDS    250 PARSTIME      322 BUILDPB       11 RES       null RESTART       2 HEURISTIC

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092669-1215276653/watcher-1092669-1215276653 -o /tmp/evaluation-result-1092669-1215276653/solver-1092669-1215276653 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1092669-1215276653.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=10800 CPUtime=0
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 710 0 0 0 0 0 0 0 18 0 2 0 2006639587 11059200 488 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 2700 488 213 9 0 1230 0
[pid=26349/tid=26350] ppid=26347 vsize=10800 CPUtime=0
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 2006639588 11059200 488 996147200 134512640 134550740 4294956016 18446744073709551615 9285592 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.11271 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=866556 CPUtime=0.1
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 3936 0 1 0 8 2 0 0 18 0 9 0 2006639587 887353344 3395 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 216639 3395 1795 9 0 211111 0
[pid=26349/tid=26350] ppid=26347 vsize=866556 CPUtime=0.08
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 2999 0 1 0 7 1 0 0 18 0 9 0 2006639588 887353344 3395 996147200 134512640 134550740 4294956016 18446744073709551615 4125978312 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 866556

[startup+0.201727 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=866556 CPUtime=0.18
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 4390 0 1 0 16 2 0 0 18 0 9 0 2006639587 887353344 3832 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 216639 3832 1877 9 0 211111 0
[pid=26349/tid=26350] ppid=26347 vsize=866556 CPUtime=0.17
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 3453 0 1 0 16 1 0 0 18 0 9 0 2006639588 887353344 3832 996147200 134512640 134550740 4294956016 18446744073709551615 4125975663 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 866556

[startup+0.301747 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=866556 CPUtime=0.28
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 4725 0 1 0 26 2 0 0 18 0 9 0 2006639587 887353344 4167 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 216639 4167 1887 9 0 211111 0
[pid=26349/tid=26350] ppid=26347 vsize=866556 CPUtime=0.26
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 3766 0 1 0 24 2 0 0 19 0 9 0 2006639588 887353344 4167 996147200 134512640 134550740 4294956016 18446744073709551615 4125951336 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866556

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

[startup+0.402767 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=866940 CPUtime=0.38
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 5256 0 1 0 35 3 0 0 18 0 9 0 2006639587 887746560 4680 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 216735 4680 1926 9 0 211207 0
[pid=26349/tid=26350] ppid=26347 vsize=866940 CPUtime=0.32
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 4207 0 1 0 30 2 0 0 20 0 9 0 2006639588 887746560 4680 996147200 134512640 134550740 4294956016 18446744073709551615 4159724999 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 866940

[startup+0.601804 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 26349
/proc/meminfo: memFree=1303128/2055920 swapFree=4180412/4192956
[pid=26349] ppid=26347 vsize=866940 CPUtime=0.59
/proc/26349/stat : 26349 (java) S 26347 26349 23995 0 -1 0 7007 0 1 0 54 5 0 0 18 0 9 0 2006639587 887746560 6410 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26349/statm: 216735 6410 1966 9 0 211207 0
[pid=26349/tid=26350] ppid=26347 vsize=866940 CPUtime=0.47
/proc/26349/task/26350/stat : 26350 (java) R 26347 26349 23995 0 -1 64 5930 0 1 0 44 3 0 0 21 0 9 0 2006639588 887746560 6410 996147200 134512640 134550740 4294956016 18446744073709551615 104253009 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 866940

Child status: 0
Real time (s): 0.682423
CPU time (s): 0.665898
CPU user time (s): 0.607907
CPU system time (s): 0.057991
CPU usage (%): 97.5785
Max. virtual memory (cumulated for all children) (KiB): 866940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.607907
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7500
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= 328
involuntary context switches= 320

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node21 at 2008-07-05 18:50:53
IDJOB=1092669
IDBENCH=58648
IDSOLVER=348
FILE ID=node21/1092669-1215276653
PBS_JOBID= 7882151
Free space on /tmp= 66476 MiB

SOLVER NAME= choco2_impwdeg 2008-06-26
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-3.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092669-1215276653/watcher-1092669-1215276653 -o /tmp/evaluation-result-1092669-1215276653/solver-1092669-1215276653 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1092669-1215276653.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= aa253ebcb4b244774c05961391955ab9
RANDOM SEED=602900264

node21.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		: 3000.263
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		: 3000.263
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:       1303608 kB
Buffers:        111152 kB
Cached:         475744 kB
SwapCached:       6472 kB
Active:         333580 kB
Inactive:       347572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1303608 kB
SwapTotal:     4192956 kB
SwapFree:      4180412 kB
Dirty:            6260 kB
Writeback:           0 kB
Mapped:         106668 kB
Slab:            56144 kB
Committed_AS:  4381256 kB
PageTables:       1996 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= 66472 MiB
End job on node21 at 2008-07-05 18:50:54