Trace number 2082025

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 0.755884 0.789528

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-1.xml
MD5SUMb533018f75b84b97c42ae06595d24f86
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 benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints145
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension145
Global constraints used (with number of constraints)

Solver Data 

0.68/0.75	s UNSATISFIABLE
0.68/0.75	d AC 32
0.68/0.75	d RUNTIME 0.641
0.68/0.75	d NODES 0
0.68/0.75	d NODES/s 0
0.68/0.75	d BACKTRACKS 0
0.68/0.75	d BACKTRACKS/s 0
0.68/0.75	d CHECKS 0
0.68/0.75	d CHECKS/s 0
0.68/0.75	c UNSAT 0.641 TIME      0 NDS    259 PARSTIME      373 BUILDPB       9 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-2082025-1247374522/watcher-2082025-1247374522 -o /tmp/evaluation-result-2082025-1247374522/solver-2082025-1247374522 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082025-1247374522.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: 1.95 1.99 1.99 3/80 22578
/proc/meminfo: memFree=1622136/2055920 swapFree=4192812/4192956
[pid=22578] ppid=22576 vsize=1472 CPUtime=0
/proc/22578/stat : 22578 (java) R 22576 22578 17808 0 -1 0 279 0 0 0 0 0 0 0 18 0 1 0 24514788 1507328 72 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/22578/statm: 368 83 61 9 0 10 0

[startup+0.053214 s]
/proc/loadavg: 1.95 1.99 1.99 3/80 22578
/proc/meminfo: memFree=1622136/2055920 swapFree=4192812/4192956
[pid=22578] ppid=22576 vsize=861572 CPUtime=0.04
/proc/22578/stat : 22578 (java) S 22576 22578 17808 0 -1 0 2420 0 1 0 3 1 0 0 18 0 9 0 24514788 882249728 1975 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/22578/statm: 215393 1978 916 9 0 210308 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 861572

[startup+0.102219 s]
/proc/loadavg: 1.95 1.99 1.99 3/80 22578
/proc/meminfo: memFree=1622136/2055920 swapFree=4192812/4192956
[pid=22578] ppid=22576 vsize=864096 CPUtime=0.09
/proc/22578/stat : 22578 (java) S 22576 22578 17808 0 -1 0 3668 0 1 0 7 2 0 0 18 0 9 0 24514788 884834304 3135 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/22578/statm: 216024 3142 1625 9 0 210492 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 864096

[startup+0.302245 s]
/proc/loadavg: 1.95 1.99 1.99 3/80 22578
/proc/meminfo: memFree=1622136/2055920 swapFree=4192812/4192956
[pid=22578] ppid=22576 vsize=864484 CPUtime=0.29
/proc/22578/stat : 22578 (java) S 22576 22578 17808 0 -1 0 4875 0 1 0 25 4 0 0 18 0 9 0 24514788 885231616 4291 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/22578/statm: 216121 4291 1881 9 0 210589 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 864484

[startup+0.702299 s]
/proc/loadavg: 1.95 1.99 1.99 3/80 22578
/proc/meminfo: memFree=1622136/2055920 swapFree=4192812/4192956
[pid=22578] ppid=22576 vsize=864572 CPUtime=0.68
/proc/22578/stat : 22578 (java) S 22576 22578 17808 0 -1 0 7154 0 1 0 62 6 0 0 18 0 9 0 24514788 885321728 6535 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/22578/statm: 216143 6535 1966 9 0 210611 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 864572

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

Child status: 0
Real time (s): 0.789528
CPU time (s): 0.755884
CPU user time (s): 0.680896
CPU system time (s): 0.074988
CPU usage (%): 95.7387
Max. virtual memory (cumulated for all children) (KiB): 864572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.680896
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7336
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= 802
involuntary context switches= 784

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-07-12 06:55:22
IDJOB=2082025
IDBENCH=57523
IDSOLVER=737
FILE ID=node71/2082025-1247374522
PBS_JOBID= 9507052
Free space on /tmp= 66396 MiB

SOLVER NAME= Choco2.1.1 2009-06-10
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-1.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-2082025-1247374522/watcher-2082025-1247374522 -o /tmp/evaluation-result-2082025-1247374522/solver-2082025-1247374522 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2082025-1247374522.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= b533018f75b84b97c42ae06595d24f86
RANDOM SEED=1517677353

node71.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		: 3000.222
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		: 3000.222
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:       1622616 kB
Buffers:         15896 kB
Cached:          94128 kB
SwapCached:          0 kB
Active:         351256 kB
Inactive:        33736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1622616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3156 kB
Writeback:           0 kB
Mapped:         292936 kB
Slab:            32948 kB
Committed_AS:   941376 kB
PageTables:       2364 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= 66392 MiB
End job on node71 at 2009-07-12 06:55:23