Trace number 2116567

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 0.920859 0.947994

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/knights/
normalized-knights-12-5.xml
MD5SUM3e07c67836725db23817dc963b7a8aaa
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 benchmark0.78088
Satisfiable
(Un)Satisfiability was proved
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size144
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data 

0.88/0.92	s UNSATISFIABLE
0.88/0.92	d AC 32
0.88/0.92	d RUNTIME 0.809
0.88/0.92	d NODES 0
0.88/0.92	d NODES/s 0
0.88/0.92	d BACKTRACKS 0
0.88/0.92	d BACKTRACKS/s 0
0.88/0.92	d CHECKS 0
0.88/0.92	d CHECKS/s 0
0.88/0.92	c UNSAT 0.809 TIME      0 NDS    197 PARSTIME      80 BUILDPB       157 CONFIG        375 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-2116567-1248031340/watcher-2116567-1248031340 -o /tmp/evaluation-result-2116567-1248031340/solver-2116567-1248031340 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116567-1248031340.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: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=18576 CPUtime=0
/proc/28504/stat : 28504 (runsolver) R 28502 28504 27940 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 90200213 19021824 284 996147200 4194304 4302564 548682068272 18446744073709551615 233588714791 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/28504/statm: 4644 284 249 26 0 2626 0

[startup+0.106839 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=864104 CPUtime=0.09
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 3657 0 1 0 7 2 0 0 20 0 9 0 90200213 884842496 3122 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216026 3122 1598 9 0 210495 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 864104

[startup+0.202859 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=864256 CPUtime=0.18
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 4564 0 1 0 16 2 0 0 20 0 9 0 90200213 884998144 3981 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216064 3981 1879 9 0 210533 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 864256

[startup+0.302876 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=865280 CPUtime=0.28
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 5005 0 1 0 25 3 0 0 20 0 9 0 90200213 886046720 4421 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216320 4421 1885 9 0 210789 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 865280

[startup+0.702946 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=865452 CPUtime=0.68
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 6816 0 1 0 64 4 0 0 20 0 9 0 90200213 886222848 6196 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216363 6196 1969 9 0 210832 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 865452

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

[startup+0.802961 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=865452 CPUtime=0.78
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 6827 0 1 0 74 4 0 0 20 0 9 0 90200213 886222848 6207 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216363 6207 1971 9 0 210832 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 865452

[startup+0.902979 s]
/proc/loadavg: 1.93 2.01 1.95 4/80 28504
/proc/meminfo: memFree=1053424/2055920 swapFree=4192812/4192956
[pid=28504] ppid=28502 vsize=865452 CPUtime=0.88
/proc/28504/stat : 28504 (java) S 28502 28504 27940 0 -1 0 6838 0 1 0 83 5 0 0 20 0 9 0 90200213 886222848 6218 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/28504/statm: 216363 6218 1971 9 0 210832 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 865452

Child status: 0
Real time (s): 0.947994
CPU time (s): 0.920859
CPU user time (s): 0.866868
CPU system time (s): 0.053991
CPU usage (%): 97.1376
Max. virtual memory (cumulated for all children) (KiB): 865452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.866868
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6868
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= 460
involuntary context switches= 383

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node27 at 2009-07-19 21:22:20
IDJOB=2116567
IDBENCH=57120
IDSOLVER=780
FILE ID=node27/2116567-1248031340
PBS_JOBID= 9528993
Free space on /tmp= 66240 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/knights/normalized-knights-12-5.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-2116567-1248031340/watcher-2116567-1248031340 -o /tmp/evaluation-result-2116567-1248031340/solver-2116567-1248031340 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116567-1248031340.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= 3e07c67836725db23817dc963b7a8aaa
RANDOM SEED=1182654982

node27.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		: 2800.239
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	: 5521.40
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		: 2800.239
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:       1053840 kB
Buffers:        102872 kB
Cached:         706736 kB
SwapCached:          0 kB
Active:         292388 kB
Inactive:       603740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1053840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4992 kB
Writeback:           0 kB
Mapped:         104272 kB
Slab:            91044 kB
Committed_AS:  1331084 kB
PageTables:       1896 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66236 MiB
End job on node27 at 2009-07-19 21:22:21