Trace number 2074318

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
Mistral 1.545UNSAT 1.21381 1.21416

DiagnosticValue
ASSIGNMENTS2782
CHECKS1069390
NODES2782

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-9-9-2.xml
MD5SUMce08ce1390ffd10aa41a85c876acf89f
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.12383
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of constraints1296
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1296
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
1.19/1.20	s UNSATISFIABLE
1.19/1.20	d CHECKS 1069386
1.19/1.20	d ASSIGNMENTS 2782
1.19/1.20	d NODES 2782 BACKTRACKS 2740 FAILURES 2741 RUNTIME 1.13 TOTALTIME 1.2 NODES/s 2461.95 CHECKS/s 946359

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-2074318-1247359161/watcher-2074318-1247359161 -o /tmp/evaluation-result-2074318-1247359161/solver-2074318-1247359161 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074318-1247359161.xml 

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: 1.24 1.79 1.93 1/67 17765
/proc/meminfo: memFree=1931656/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=4804 CPUtime=0
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 181 0 0 0 0 0 0 0 20 0 1 0 22607855 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1201 162 137 29 0 16 0

[startup+0.0483919 s]
/proc/loadavg: 1.24 1.79 1.93 1/67 17765
/proc/meminfo: memFree=1931656/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=5204 CPUtime=0.04
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 519 0 0 0 4 0 0 0 20 0 1 0 22607855 5328896 498 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157374987 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1301 498 373 29 0 116 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5204

[startup+0.101398 s]
/proc/loadavg: 1.24 1.79 1.93 1/67 17765
/proc/meminfo: memFree=1931656/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=6524 CPUtime=0.09
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 854 0 0 0 9 0 0 0 20 0 1 0 22607855 6680576 833 996147200 1448431616 1448550632 4294956208 18446744073709551615 134861081 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1631 833 398 29 0 446 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6524

[startup+0.301414 s]
/proc/loadavg: 1.24 1.79 1.93 1/67 17765
/proc/meminfo: memFree=1931656/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=6524 CPUtime=0.29
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 854 0 0 0 29 0 0 0 22 0 1 0 22607855 6680576 833 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534249 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1631 833 398 29 0 446 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6524

[startup+0.701449 s]
/proc/loadavg: 1.24 1.79 1.93 1/67 17765
/proc/meminfo: memFree=1931656/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=6524 CPUtime=0.69
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 854 0 0 0 69 0 0 0 25 0 1 0 22607855 6680576 833 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534272 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1631 833 398 29 0 446 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6524

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

[startup+1.10549 s]
/proc/loadavg: 1.24 1.79 1.93 2/68 17766
/proc/meminfo: memFree=1929920/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=6524 CPUtime=1.1
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 854 0 0 0 110 0 0 0 25 0 1 0 22607855 6680576 833 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534249 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1631 833 398 29 0 446 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 6524

[startup+1.20149 s]
/proc/loadavg: 1.24 1.79 1.93 2/68 17766
/proc/meminfo: memFree=1929920/2055920 swapFree=4192812/4192956
[pid=17765] ppid=17763 vsize=6524 CPUtime=1.19
/proc/17765/stat : 17765 (ld-linux.so.2) R 17763 17765 15910 0 -1 4194304 854 0 0 0 119 0 0 0 25 0 1 0 22607855 6680576 833 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534272 0 0 4096 0 0 0 0 17 0 0 0
/proc/17765/statm: 1631 833 398 29 0 446 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 6524

Child status: 0
Real time (s): 1.21416
CPU time (s): 1.21381
CPU user time (s): 1.20882
CPU system time (s): 0.004999
CPU usage (%): 99.9714
Max. virtual memory (cumulated for all children) (KiB): 6524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.20882
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 888
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 24
involuntary context switches= 7

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-12 02:39:22
IDJOB=2074318
IDBENCH=56086
IDSOLVER=769
FILE ID=node41/2074318-1247359161
PBS_JOBID= 9506891
Free space on /tmp= 65880 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-9-9-2.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074318-1247359161/watcher-2074318-1247359161 -o /tmp/evaluation-result-2074318-1247359161/solver-2074318-1247359161 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074318-1247359161.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ce08ce1390ffd10aa41a85c876acf89f
RANDOM SEED=1347434764

node41.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		: 3000.212
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	: 5931.00
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		: 3000.212
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:       1932072 kB
Buffers:          5800 kB
Cached:          59208 kB
SwapCached:          0 kB
Active:          64216 kB
Inactive:        16296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1932072 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1396 kB
Writeback:           0 kB
Mapped:          25312 kB
Slab:            29068 kB
Committed_AS:   137316 kB
PageTables:       1552 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= 65876 MiB
End job on node41 at 2009-07-12 02:39:23