Trace number 2117132

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 2009-07-16UNSAT 0.688894 0.711052

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-4.xml
MD5SUMb37d50180c85d43bb3d8c25e0f871b0d
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables16
Number of constraints132
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension132
Global constraints used (with number of constraints)

Solver Data 

0.68/0.70	s UNSATISFIABLE
0.68/0.70	d AC 32
0.68/0.70	d RUNTIME 0.582
0.68/0.70	d NODES 0
0.68/0.70	d NODES/s 0
0.68/0.70	d BACKTRACKS 0
0.68/0.70	d BACKTRACKS/s 0
0.68/0.70	d CHECKS 0
0.68/0.70	d CHECKS/s 0
0.68/0.70	c UNSAT 0.582 TIME      0 NDS    309 PARSTIME      85 BUILDPB       181 CONFIG        7 RES       false RESTART       0 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-2117132-1248033229/watcher-2117132-1248033229 -o /tmp/evaluation-result-2117132-1248033229/solver-2117132-1248033229 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2117132-1248033229.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: 2.00 2.00 2.00 4/80 28037
/proc/meminfo: memFree=672928/2055920 swapFree=4192812/4192956
[pid=28037] ppid=28035 vsize=18576 CPUtime=0
/proc/28037/stat : 28037 (runsolver) R 28035 28037 27141 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 90389883 19021824 284 996147200 4194304 4302564 548682068272 18446744073709551615 262910045479 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/28037/statm: 4644 284 249 26 0 2626 0

[startup+0.0234869 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 28037
/proc/meminfo: memFree=672928/2055920 swapFree=4192812/4192956
[pid=28037] ppid=28035 vsize=10764 CPUtime=0
/proc/28037/stat : 28037 (java) S 28035 28037 27141 0 -1 0 761 0 0 0 0 0 0 0 18 0 2 0 90389883 11022336 523 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/28037/statm: 2691 523 234 9 0 1196 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10764

[startup+0.10196 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 28037
/proc/meminfo: memFree=672928/2055920 swapFree=4192812/4192956
[pid=28037] ppid=28035 vsize=862252 CPUtime=0.07
/proc/28037/stat : 28037 (java) S 28035 28037 27141 0 -1 0 3323 0 1 0 6 1 0 0 18 0 9 0 90389883 882946048 2789 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28037/statm: 215563 2789 1310 9 0 210433 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 862252

[startup+0.301997 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 28037
/proc/meminfo: memFree=672928/2055920 swapFree=4192812/4192956
[pid=28037] ppid=28035 vsize=864188 CPUtime=0.27
/proc/28037/stat : 28037 (java) S 28035 28037 27141 0 -1 0 4710 0 1 0 25 2 0 0 18 0 9 0 90389883 884928512 4126 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28037/statm: 216047 4126 1883 9 0 210516 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 864188

[startup+0.701077 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 28037
/proc/meminfo: memFree=672928/2055920 swapFree=4192812/4192956
[pid=28037] ppid=28035 vsize=864564 CPUtime=0.68
/proc/28037/stat : 28037 (java) S 28035 28037 27141 0 -1 0 6866 0 1 0 64 4 0 0 18 0 9 0 90389883 885313536 6246 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28037/statm: 216141 6246 1968 9 0 210610 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 864564

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

Child status: 0
Real time (s): 0.711052
CPU time (s): 0.688894
CPU user time (s): 0.644901
CPU system time (s): 0.043993
CPU usage (%): 96.8838
Max. virtual memory (cumulated for all children) (KiB): 864564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.644901
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6889
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= 239
involuntary context switches= 177

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node11 at 2009-07-19 21:53:49
IDJOB=2117132
IDBENCH=58650
IDSOLVER=780
FILE ID=node11/2117132-1248033229
PBS_JOBID= 9529023
Free space on /tmp= 66404 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-4.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-2117132-1248033229/watcher-2117132-1248033229 -o /tmp/evaluation-result-2117132-1248033229/solver-2117132-1248033229 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2117132-1248033229.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= b37d50180c85d43bb3d8c25e0f871b0d
RANDOM SEED=350716241

node11.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		: 3000.274
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		: 3000.274
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:        673408 kB
Buffers:         93192 kB
Cached:         927556 kB
SwapCached:          0 kB
Active:         393196 kB
Inactive:       890848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        673408 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4996 kB
Writeback:           0 kB
Mapped:         281160 kB
Slab:            83132 kB
Committed_AS:  1272900 kB
PageTables:       2360 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= 66396 MiB
End job on node11 at 2009-07-19 21:53:50