Trace number 2082377

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
Choco2.1.1 2009-06-10UNSAT 0.616905 0.625429

DiagnosticValue
CHECKS0
NODES12

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-5.xml
MD5SUM42a251b4e5e78e8baab98daca83f50dd
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 benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables10
Number of constraints50
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension50
Global constraints used (with number of constraints)

Solver Data 

0.59/0.61	s UNSATISFIABLE
0.59/0.61	d AC 32
0.59/0.61	d RUNTIME 0.508
0.59/0.61	d NODES 12
0.59/0.61	d NODES/s 24
0.59/0.61	d BACKTRACKS 19
0.59/0.61	d BACKTRACKS/s 37
0.59/0.61	d CHECKS 0
0.59/0.61	d CHECKS/s 0
0.59/0.61	c UNSAT 0.508 TIME      12 NDS    209 PARSTIME      207 BUILDPB       92 RES       true RESTART       1 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-2082377-1247375014/watcher-2082377-1247375014 -o /tmp/evaluation-result-2082377-1247375014/solver-2082377-1247375014 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082377-1247375014.xml -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -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: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=152 CPUtime=0
/proc/23496/stat : 23496 (java) R 23494 23496 17578 0 -1 0 222 0 0 0 0 0 0 0 18 0 1 0 24568409 155648 26 996147200 134512640 134550932 4294955840 18446744073709551615 9695531 0 0 4096 0 0 0 0 17 0 0 0
/proc/23496/statm: 38 26 19 9 0 4 0

[startup+0.066387 s]
/proc/loadavg: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=862188 CPUtime=0.06
/proc/23496/stat : 23496 (java) S 23494 23496 17578 0 -1 0 2968 0 1 0 4 2 0 0 18 0 9 0 24568409 882880512 2460 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/23496/statm: 215547 2463 1183 9 0 210416 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 862188

[startup+0.101388 s]
/proc/loadavg: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=864108 CPUtime=0.09
/proc/23496/stat : 23496 (java) S 23494 23496 17578 0 -1 0 3894 0 1 0 7 2 0 0 18 0 9 0 24568409 884846592 3341 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/23496/statm: 216027 3341 1749 9 0 210495 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 864108

[startup+0.301408 s]
/proc/loadavg: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=864408 CPUtime=0.29
/proc/23496/stat : 23496 (java) S 23494 23496 17578 0 -1 0 5042 0 1 0 26 3 0 0 18 0 9 0 24568409 885153792 4456 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/23496/statm: 216102 4456 1888 9 0 210570 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 864408

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

[startup+0.501426 s]
/proc/loadavg: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=864552 CPUtime=0.49
/proc/23496/stat : 23496 (java) S 23494 23496 17578 0 -1 0 6531 0 1 0 45 4 0 0 18 0 9 0 24568409 885301248 5913 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/23496/statm: 216138 5913 1960 9 0 210606 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 864552

[startup+0.601439 s]
/proc/loadavg: 2.10 2.20 2.11 4/74 23496
/proc/meminfo: memFree=1901272/2055920 swapFree=4192812/4192956
[pid=23496] ppid=23494 vsize=864552 CPUtime=0.59
/proc/23496/stat : 23496 (java) S 23494 23496 17578 0 -1 0 6760 0 1 0 55 4 0 0 18 0 9 0 24568409 885301248 6141 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/23496/statm: 216138 6141 1961 9 0 210606 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 864552

Child status: 0
Real time (s): 0.625429
CPU time (s): 0.616905
CPU user time (s): 0.565913
CPU system time (s): 0.050992
CPU usage (%): 98.6371
Max. virtual memory (cumulated for all children) (KiB): 864552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.565913
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6804
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= 431
involuntary context switches= 396

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-12 07:03:34
IDJOB=2082377
IDBENCH=57579
IDSOLVER=737
FILE ID=node12/2082377-1247375014
PBS_JOBID= 9507003
Free space on /tmp= 66216 MiB

SOLVER NAME= Choco2.1.1 2009-06-10
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-5.xml
COMMAND LINE= java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file BENCHNAME -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -saclim 60 -s true -verb 0 -seed 11041979
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082377-1247375014/watcher-2082377-1247375014 -o /tmp/evaluation-result-2082377-1247375014/solver-2082377-1247375014 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082377-1247375014.xml -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -saclim 60 -s true -verb 0 -seed 11041979

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

MD5SUM BENCH= 42a251b4e5e78e8baab98daca83f50dd
RANDOM SEED=1105797004

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:       1901752 kB
Buffers:          3560 kB
Cached:          64844 kB
SwapCached:        140 kB
Active:          72284 kB
Inactive:        19552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1901752 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2628 kB
Writeback:           0 kB
Mapped:          34452 kB
Slab:            47512 kB
Committed_AS:   171416 kB
PageTables:       1804 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= 66212 MiB
End job on node12 at 2009-07-12 07:03:35