Trace number 1092858

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 0.879865 0.906094

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-5.xml
MD5SUM88c157a70985ca5ac0101be737665729
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 benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints205
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension205
Global constraints used (with number of constraints)

Solver Data (download as text)

0.78/0.88	s UNSATISFIABLE
0.78/0.88	d ASSIGNMENTS 0
0.78/0.88	c UNSAT 791 TIME      0 NDS    348 PARSTIME      389 BUILDPB       54 RES       true 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-1092858-1215277851/watcher-1092858-1215277851 -o /tmp/evaluation-result-1092858-1215277851/solver-1092858-1215277851 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1092858-1215277851.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: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=10800 CPUtime=0
/proc/27471/stat : 27471 (java) S 27469 27471 26822 0 -1 0 710 0 0 0 0 0 0 0 18 0 2 0 2006754668 11059200 488 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 2700 488 213 9 0 1230 0
[pid=27471/tid=27472] ppid=27469 vsize=10800 CPUtime=0
/proc/27471/task/27472/stat : 27472 (java) R 27469 27471 26822 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 2006754670 11059200 488 996147200 134512640 134550740 4294956016 18446744073709551615 7737304 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.067604 s]
/proc/loadavg: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=864636 CPUtime=0.05
/proc/27471/stat : 27471 (java) S 27469 27471 26822 0 -1 0 2960 0 1 0 3 2 0 0 18 0 9 0 2006754668 885387264 2481 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 216159 2481 1222 9 0 211026 0
[pid=27471/tid=27472] ppid=27469 vsize=864636 CPUtime=0.04
/proc/27471/task/27472/stat : 27472 (java) R 27469 27471 26822 0 -1 64 2017 0 1 0 3 1 0 0 20 0 9 0 2006754670 885387264 2481 996147200 134512640 134550740 4294956016 18446744073709551615 4125950758 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 864636

[startup+0.101613 s]
/proc/loadavg: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=866556 CPUtime=0.09
/proc/27471/stat : 27471 (java) S 27469 27471 26822 0 -1 0 3839 0 1 0 7 2 0 0 18 0 9 0 2006754668 887353344 3303 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 216639 3303 1769 9 0 211111 0
[pid=27471/tid=27472] ppid=27469 vsize=866556 CPUtime=0.07
/proc/27471/task/27472/stat : 27472 (java) R 27469 27471 26822 0 -1 64 2896 0 1 0 6 1 0 0 18 0 9 0 2006754670 887353344 3303 996147200 134512640 134550740 4294956016 18446744073709551615 102596401 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 866556

[startup+0.301649 s]
/proc/loadavg: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=866848 CPUtime=0.28
/proc/27471/stat : 27471 (java) S 27469 27471 26822 0 -1 0 4582 0 1 0 26 2 0 0 18 0 9 0 2006754668 887652352 4024 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 216712 4024 1886 9 0 211184 0
[pid=27471/tid=27472] ppid=27469 vsize=866848 CPUtime=0.23
/proc/27471/task/27472/stat : 27472 (java) R 27469 27471 26822 0 -1 64 3543 0 1 0 22 1 0 0 19 0 9 0 2006754670 887652352 4024 996147200 134512640 134550740 4294956016 18446744073709551615 103009029 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866848

[startup+0.701721 s]
/proc/loadavg: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=867428 CPUtime=0.68
/proc/27471/stat : 27471 (java) S 27469 27471 26822 0 -1 0 8303 0 1 0 64 4 0 0 18 0 9 0 2006754668 888246272 7706 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 216857 7706 1965 9 0 211329 0
[pid=27471/tid=27472] ppid=27469 vsize=867428 CPUtime=0.52
/proc/27471/task/27472/stat : 27472 (java) R 27469 27471 26822 0 -1 64 7074 0 1 0 49 3 0 0 21 0 9 0 2006754670 888246272 7706 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867428

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

[startup+0.90233 s]
/proc/loadavg: 2.03 1.99 1.99 4/80 27471
/proc/meminfo: memFree=1560648/2055920 swapFree=4181480/4192956
[pid=27471] ppid=27469 vsize=0 CPUtime=0.87
/proc/27471/stat : 27471 (java) Z 27469 27471 26822 0 -1 12 9994 0 1 0 81 6 0 0 16 0 2 0 2006754668 0 0 996147200 0 0 0 0 0 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27471/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 0.906094
CPU time (s): 0.879865
CPU user time (s): 0.810876
CPU system time (s): 0.068989
CPU usage (%): 97.1053
Max. virtual memory (cumulated for all children) (KiB): 867428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.810876
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9994
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= 678
involuntary context switches= 658

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node67 at 2008-07-05 19:10:51
IDJOB=1092858
IDBENCH=58664
IDSOLVER=348
FILE ID=node67/1092858-1215277851
PBS_JOBID= 7882264
Free space on /tmp= 66432 MiB

SOLVER NAME= choco2_impwdeg 2008-06-26
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-5.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-1092858-1215277851/watcher-1092858-1215277851 -o /tmp/evaluation-result-1092858-1215277851/solver-1092858-1215277851 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar choco2impWdeg.jar HOME/instance-1092858-1215277851.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 88c157a70985ca5ac0101be737665729
RANDOM SEED=1712169236

node67.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		: 3000.281
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		: 3000.281
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:       1561128 kB
Buffers:         65420 kB
Cached:         237584 kB
SwapCached:       5376 kB
Active:         303896 kB
Inactive:       128264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1561128 kB
SwapTotal:     4192956 kB
SwapFree:      4181480 kB
Dirty:            6376 kB
Writeback:           0 kB
Mapped:         145448 kB
Slab:            47688 kB
Committed_AS:  4978920 kB
PageTables:       2060 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= 66424 MiB
End job on node67 at 2008-07-05 19:10:52