Trace number 2073152

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 1.545SAT 2.69759 2.75344

DiagnosticValue
ASSIGNMENTS7164
CHECKS3929360
NODES7164

General information on the benchmark

Namecsp/ramsey4/
normalized-ramsey-33-4.xml
MD5SUMa42d79bb6fe860b06fb8edfaf7f29aa0
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.69759
Satisfiable
(Un)Satisfiability was proved
Number of variables528
Number of constraints5456
Maximum constraint arity3
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5456
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c mistral version 1.545
2.65/2.72	s SATISFIABLE
2.65/2.72	v 2 0 3 2 1 3 1 3 3 3 2 1 0 2 1 3 1 0 0 1 1 3 3 0 0 1 1 0 2 2 2 0 2 1 3 0 3 0 0 2 0 3 3 3 1 2 2 2 3 1 1 3 2 2 0 0 3 1 0 0 1 3 1 3 2 2 0 0 2 0 1 3 3 2 1 0 3 3 3 2 0 2 1 0 1 3 0 1 2 0 3 0 1 2 0 1 1 2 2 2 2 1 0 3 1 0 1 1 3 0 1 1 2 0 0 3 2 3 0 2 3 0 1 0 2 0 3 3 0 2 0 3 1 2 1 2 1 3 1 1 3 2 3 2 0 0 0 0 1 2 2 2 1 1 3 0 0 1 2 0 2 2 3 3 2 0 3 0 1 1 3 0 3 2 0 3 1 3 1 2 2 2 0 1 1 3 0 3 2 1 1 0 0 2 0 0 1 2 3 3 2 1 0 1 1 3 3 3 0 3 2 1 0 3 0 3 0 2 2 1 2 3 0 2 1 0 1 0 0 1 3 2 3 3 2 2 2 3 0 0 1 1 0 2 3 3 1 3 3 1 0 2 0 3 0 0 1 3 0 3 3 1 2 1 1 1 2 2 1 0 3 3 1 2 3 0 1 3 0 3 2 0 1 2 1 2 0 1 3 2 2 3 1 3 0 1 0 2 2 1 2 2 2 0 3 0 1 3 1 3 0 0 3 1 1 1 0 2 1 1 3 1 0 0 1 2 2 2 3 1 2 0 2 2 3 1 0 3 0 0 3 3 1 3 2 1 0 1 2 2 0 2 1 1 2 2 3 1 3 1 1 0 0 2 3 2 2 0 2 2 2 0 3 0 2 1 0 0 3 2 2 3 1 1 0 3 2 1 1 1 2 0 0 0 0 3 3 1 0 3 1 3 2 2 3 0 2 1 2 2 0 2 3 1 1 1 2 3 0 0 1 3 1 1 2 0 2 3 1 2 1 0 2 0 1 2 1 3 3 0 2 2 3 0 2 1 1 3 2 2 0 3 2 1 1 2 0 3 1 0 3 2 3 3 1 1 0 3 3 2 2 0 1 0 2 3 2 0 1 1 2 0 3 0 0 3 1 0 2 3 3 0 3 0 0 3 2 3 0 3 1 3 1 2 0 3 2 3 0 1 0 2 0 1 1 3 1 3 2 2 0 1 3 3 1 1 2 3
2.65/2.72	d CHECKS 3929364
2.65/2.72	d ASSIGNMENTS 7164
2.65/2.73	d NODES 7164 BACKTRACKS 5791 FAILURES 5791 RUNTIME 2.42 TOTALTIME 2.67 NODES/s 2960.33 CHECKS/s 1.6237e+06

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-2073152-1247357755/watcher-2073152-1247357755 -o /tmp/evaluation-result-2073152-1247357755/solver-2073152-1247357755 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2073152-1247357755.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: 3.00 2.80 2.48 3/72 15798
/proc/meminfo: memFree=1918984/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=2224 CPUtime=0
/proc/15798/stat : 15798 (ld-linux.so.2) D 15796 15798 14866 0 -1 4194304 48 0 0 0 0 0 0 0 18 0 1 0 22843144 2277376 33 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448525156 0 0 4096 0 18446744071563608240 0 0 17 0 0 0
/proc/15798/statm: 556 33 25 29 0 4 0

[startup+0.0221809 s]
/proc/loadavg: 3.00 2.80 2.48 3/72 15798
/proc/meminfo: memFree=1918984/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=2224 CPUtime=0
/proc/15798/stat : 15798 (ld-linux.so.2) D 15796 15798 14866 0 -1 4194304 48 0 0 0 0 0 0 0 18 0 1 0 22843144 2277376 33 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448525284 0 0 4096 0 18446744071563608240 0 0 17 0 0 0
/proc/15798/statm: 556 33 25 29 0 4 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2224

[startup+0.101202 s]
/proc/loadavg: 3.00 2.80 2.48 3/72 15798
/proc/meminfo: memFree=1918984/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=5456 CPUtime=0.06
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 573 0 0 0 6 0 0 0 18 0 1 0 22843144 5586944 552 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 1364 552 373 29 0 179 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5456

[startup+0.30124 s]
/proc/loadavg: 3.00 2.80 2.48 3/72 15798
/proc/meminfo: memFree=1918984/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=10340 CPUtime=0.27
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 1799 0 0 0 26 1 0 0 19 0 1 0 22843144 10588160 1778 996147200 1448431616 1448550632 4294956208 18446744073709551615 134528929 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 2585 1778 395 29 0 1400 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 10340

[startup+0.701311 s]
/proc/loadavg: 3.00 2.80 2.48 3/72 15798
/proc/meminfo: memFree=1918984/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=10340 CPUtime=0.66
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 1833 0 0 0 65 1 0 0 23 0 1 0 22843144 10588160 1812 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860501 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 2585 1812 406 29 0 1400 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 10340

[startup+1.50146 s]
/proc/loadavg: 2.92 2.79 2.48 3/73 15799
/proc/meminfo: memFree=1912896/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=10340 CPUtime=1.46
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 1834 0 0 0 145 1 0 0 25 0 1 0 22843144 10588160 1813 996147200 1448431616 1448550632 4294956208 18446744073709551615 134531116 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 2585 1813 406 29 0 1400 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 10340

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

[startup+2.30161 s]
/proc/loadavg: 2.92 2.79 2.48 3/73 15799
/proc/meminfo: memFree=1912768/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=10340 CPUtime=2.25
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 1835 0 0 0 224 1 0 0 25 0 1 0 22843144 10588160 1814 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161282 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 2585 1814 406 29 0 1400 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 10340

[startup+2.70168 s]
/proc/loadavg: 2.92 2.79 2.48 3/73 15799
/proc/meminfo: memFree=1912768/2055920 swapFree=4192812/4192956
[pid=15798] ppid=15796 vsize=10340 CPUtime=2.65
/proc/15798/stat : 15798 (ld-linux.so.2) R 15796 15798 14866 0 -1 4194304 1835 0 0 0 264 1 0 0 25 0 1 0 22843144 10588160 1814 996147200 1448431616 1448550632 4294956208 18446744073709551615 134528937 0 0 4096 0 0 0 0 17 0 0 0
/proc/15798/statm: 2585 1814 406 29 0 1400 0
Current children cumulated CPU time (s) 2.65
Current children cumulated vsize (KiB) 10340

Child status: 0
Real time (s): 2.75344
CPU time (s): 2.69759
CPU user time (s): 2.67959
CPU system time (s): 0.017997
CPU usage (%): 97.9717
Max. virtual memory (cumulated for all children) (KiB): 10340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.67959
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1865
page faults= 6
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 36
involuntary context switches= 61

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node2 at 2009-07-12 02:15:55
IDJOB=2073152
IDBENCH=55952
IDSOLVER=769
FILE ID=node2/2073152-1247357755
PBS_JOBID= 9506910
Free space on /tmp= 66308 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/ramsey4/normalized-ramsey-33-4.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073152-1247357755/watcher-2073152-1247357755 -o /tmp/evaluation-result-2073152-1247357755/solver-2073152-1247357755 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2073152-1247357755.xml

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

MD5SUM BENCH= a42d79bb6fe860b06fb8edfaf7f29aa0
RANDOM SEED=26095745

node2.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1919656 kB
Buffers:         13756 kB
Cached:          36904 kB
SwapCached:          0 kB
Active:          73968 kB
Inactive:        15192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1919656 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2352 kB
Writeback:           0 kB
Mapped:          49992 kB
Slab:            32432 kB
Committed_AS:   165636 kB
PageTables:       1872 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= 66308 MiB
End job on node2 at 2009-07-12 02:15:58