Trace number 2082289

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 2009-06-10SAT 0.490925 0.520826

DiagnosticValue
CHECKS0
NODES2

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-3.xml
MD5SUM106804da3e01f843ca5d9120fa0a4072
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables6
Number of constraints18
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18
Global constraints used (with number of constraints)

Solver Data 

0.38/0.49	s SATISFIABLE
0.38/0.49	v 2 0 1 4 3 5 
0.38/0.49	d AC 32
0.38/0.49	d RUNTIME 0.386
0.38/0.49	d NODES 2
0.38/0.49	d NODES/s 5
0.38/0.49	d BACKTRACKS 0
0.38/0.49	d BACKTRACKS/s 0
0.38/0.49	d CHECKS 0
0.38/0.49	d CHECKS/s 0
0.38/0.49	c SAT 0.386 TIME      2 NDS    167 PARSTIME      192 BUILDPB       27 RES       true RESTART       1 HEURISTIC       true RANDVAL

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2082289-1247374882/watcher-2082289-1247374882 -o /tmp/evaluation-result-2082289-1247374882/solver-2082289-1247374882 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082289-1247374882.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 2.07 2.02 4/81 27938
/proc/meminfo: memFree=1781712/2055920 swapFree=4192812/4192956
[pid=27938] ppid=27936 vsize=152 CPUtime=0
/proc/27938/stat : 27938 (java) R 27936 27938 23333 0 -1 0 222 0 0 0 0 0 0 0 18 0 1 0 24551782 155648 26 996147200 134512640 134550932 4294955840 18446744073709551615 7917867 0 0 4096 0 0 0 0 17 0 0 0
/proc/27938/statm: 38 26 19 9 0 4 0

[startup+0.056105 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 27938
/proc/meminfo: memFree=1781712/2055920 swapFree=4192812/4192956
[pid=27938] ppid=27936 vsize=862188 CPUtime=0.05
/proc/27938/stat : 27938 (java) S 27936 27938 23333 0 -1 0 2817 0 1 0 3 2 0 0 18 0 9 0 24551782 882880512 2337 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27938/statm: 215547 2338 1141 9 0 210416 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 862188

[startup+0.101109 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 27938
/proc/meminfo: memFree=1781712/2055920 swapFree=4192812/4192956
[pid=27938] ppid=27936 vsize=864096 CPUtime=0.09
/proc/27938/stat : 27938 (java) S 27936 27938 23333 0 -1 0 3878 0 1 0 7 2 0 0 18 0 9 0 24551782 884834304 3328 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27938/statm: 216024 3330 1747 9 0 210492 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 864096

[startup+0.301121 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 27938
/proc/meminfo: memFree=1781712/2055920 swapFree=4192812/4192956
[pid=27938] ppid=27936 vsize=864568 CPUtime=0.29
/proc/27938/stat : 27938 (java) S 27936 27938 23333 0 -1 0 5329 0 1 0 26 3 0 0 18 0 9 0 24551782 885317632 4733 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27938/statm: 216142 4734 1918 9 0 210610 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 864568

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

[startup+0.501144 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 27938
/proc/meminfo: memFree=1781712/2055920 swapFree=4192812/4192956
[pid=27938] ppid=27936 vsize=864892 CPUtime=0.48
/proc/27938/stat : 27938 (java) S 27936 27938 23333 0 -1 0 6655 0 1 0 44 4 0 0 18 0 9 0 24551782 885649408 6034 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27938/statm: 216223 6034 1966 9 0 210691 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 864892

Child status: 0
Real time (s): 0.520826
CPU time (s): 0.490925
CPU user time (s): 0.444932
CPU system time (s): 0.045993
CPU usage (%): 94.2589
Max. virtual memory (cumulated for all children) (KiB): 864892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.444932
system time used= 0.045993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6660
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= 314
involuntary context switches= 264

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-12 07:01:22
IDJOB=2082289
IDBENCH=57564
IDSOLVER=737
FILE ID=node50/2082289-1247374882
PBS_JOBID= 9507088
Free space on /tmp= 66428 MiB

SOLVER NAME= Choco2.1.1 2009-06-10
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-3.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-2082289-1247374882/watcher-2082289-1247374882 -o /tmp/evaluation-result-2082289-1247374882/solver-2082289-1247374882 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082289-1247374882.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= 106804da3e01f843ca5d9120fa0a4072
RANDOM SEED=1614352657

node50.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		: 3000.231
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		: 3000.231
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:       1782256 kB
Buffers:          8012 kB
Cached:          71140 kB
SwapCached:          0 kB
Active:         181884 kB
Inactive:        37380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1782256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3016 kB
Writeback:           0 kB
Mapped:         160620 kB
Slab:            39164 kB
Committed_AS:   382468 kB
PageTables:       2172 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 node50 at 2009-07-12 07:01:22