Trace number 2116717

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 2009-07-16SAT 0.504922 0.525107

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 

0.48/0.50	s SATISFIABLE
0.48/0.50	v 2 0 1 4 3 5 
0.48/0.50	d AC 32
0.48/0.50	d RUNTIME 0.398
0.48/0.50	d NODES 2
0.48/0.50	d NODES/s 5
0.48/0.50	d BACKTRACKS 0
0.48/0.50	d BACKTRACKS/s 0
0.48/0.50	d CHECKS 0
0.48/0.50	d CHECKS/s 0
0.48/0.50	c SAT 0.398 TIME      2 NDS    164 PARSTIME      71 BUILDPB       135 CONFIG        28 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-2116717-1248032128/watcher-2116717-1248032128 -o /tmp/evaluation-result-2116717-1248032128/solver-2116717-1248032128 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116717-1248032128.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: 2.09 2.02 2.01 4/81 30731
/proc/meminfo: memFree=823744/2055920 swapFree=4192812/4192956
[pid=30731] ppid=30729 vsize=1616 CPUtime=0
/proc/30731/stat : 30731 (java) R 30729 30731 30108 0 -1 0 197 0 0 0 0 0 0 0 20 0 1 0 90277767 1654784 164 996147200 134512640 134550932 4294956064 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/30731/statm: 404 164 127 9 0 46 0

[startup+0.0971731 s]
/proc/loadavg: 2.09 2.02 2.01 4/81 30731
/proc/meminfo: memFree=823744/2055920 swapFree=4192812/4192956
[pid=30731] ppid=30729 vsize=864072 CPUtime=0.08
/proc/30731/stat : 30731 (java) S 30729 30731 30108 0 -1 0 3818 0 1 0 6 2 0 0 20 0 9 0 90277767 884809728 3279 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30731/statm: 216018 3279 1727 9 0 210487 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864072

[startup+0.101171 s]
/proc/loadavg: 2.09 2.02 2.01 4/81 30731
/proc/meminfo: memFree=823744/2055920 swapFree=4192812/4192956
[pid=30731] ppid=30729 vsize=864072 CPUtime=0.08
/proc/30731/stat : 30731 (java) S 30729 30731 30108 0 -1 0 3879 0 1 0 6 2 0 0 20 0 9 0 90277767 884809728 3329 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30731/statm: 216018 3329 1747 9 0 210487 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864072

[startup+0.301212 s]
/proc/loadavg: 2.09 2.02 2.01 4/81 30731
/proc/meminfo: memFree=823744/2055920 swapFree=4192812/4192956
[pid=30731] ppid=30729 vsize=864532 CPUtime=0.29
/proc/30731/stat : 30731 (java) S 30729 30731 30108 0 -1 0 5346 0 1 0 25 4 0 0 20 0 9 0 90277767 885280768 4750 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30731/statm: 216133 4750 1921 9 0 210602 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 864532

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

[startup+0.501253 s]
/proc/loadavg: 2.09 2.02 2.01 4/81 30731
/proc/meminfo: memFree=823744/2055920 swapFree=4192812/4192956
[pid=30731] ppid=30729 vsize=864532 CPUtime=0.48
/proc/30731/stat : 30731 (java) S 30729 30731 30108 0 -1 0 6725 0 1 0 43 5 0 0 20 0 9 0 90277767 885280768 6105 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30731/statm: 216133 6105 1966 9 0 210602 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 864532

Child status: 0
Real time (s): 0.525107
CPU time (s): 0.504922
CPU user time (s): 0.441932
CPU system time (s): 0.06299
CPU usage (%): 96.156
Max. virtual memory (cumulated for all children) (KiB): 864532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.441932
system time used= 0.06299
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6773
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= 331
involuntary context switches= 309

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node82 at 2009-07-19 21:35:28
IDJOB=2116717
IDBENCH=57564
IDSOLVER=780
FILE ID=node82/2116717-1248032128
PBS_JOBID= 9528890
Free space on /tmp= 66320 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-3.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-2116717-1248032128/watcher-2116717-1248032128 -o /tmp/evaluation-result-2116717-1248032128/solver-2116717-1248032128 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116717-1248032128.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= 106804da3e01f843ca5d9120fa0a4072
RANDOM SEED=1887794622

node82.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		: 3000.265
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		: 3000.265
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:        824224 kB
Buffers:        104400 kB
Cached:         912404 kB
SwapCached:          0 kB
Active:         321760 kB
Inactive:       809728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        824224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5196 kB
Writeback:           0 kB
Mapped:         132528 kB
Slab:            85364 kB
Committed_AS:  1295296 kB
PageTables:       1980 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= 66316 MiB
End job on node82 at 2009-07-19 21:35:29