Trace number 245848

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, and are wall clock time (not CPU 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
VALCSP 3.0? (MO) 152.029 152.65

General information on the benchmark

NamelargeQueens/
queens-800.xml
MD5SUMae3fb08e380de75bb270c4046c2f54ea
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark398.828
SatisfiableYES
(Un)Satisfiability was proved
Number of variables800
Number of constraints319600
Maximum constraint arity2
Maximum domain size800
Number of constraints which are defined in extension0
Number of constraints which are defined in intension319600
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node9/watcher-245848-1168383183 -o ROOT/results/node9/solver-245848-1168383183 -C 1800 -M 900 /tmp/evaluation/245848-1168383183/VALCSP /tmp/evaluation/245848-1168383183/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.25 0.86 1.40 5/84 570
/proc/meminfo: memFree=1606944/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=8464 CPUtime=0
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 1852 0 0 0 0 0 0 0 20 0 1 0 186714002 8667136 1830 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 9098875 0 0 4096 0 0 0 0 17 1 0 0
/proc/569/statm: 2116 1830 62 8 0 1788 0

[startup+0.117565 s]
/proc/loadavg: 0.25 0.86 1.40 5/84 570
/proc/meminfo: memFree=1606944/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=31664 CPUtime=0.1
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 5798 0 0 0 8 2 0 0 20 0 1 0 186714002 32423936 5776 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530258 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 7916 5776 65 8 0 7588 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 31664

[startup+0.52555 s]
/proc/loadavg: 0.25 0.86 1.40 5/84 570
/proc/meminfo: memFree=1606944/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=34172 CPUtime=0.51
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 6425 0 0 0 49 2 0 0 24 0 1 0 186714002 34992128 6403 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 8543 6403 65 8 0 8215 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 34172

[startup+1.34671 s]
/proc/loadavg: 0.25 0.86 1.40 3/82 1097
/proc/meminfo: memFree=1579944/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=39188 CPUtime=1.33
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 7680 0 0 0 130 3 0 0 25 0 1 0 186714002 40128512 7658 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530286 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 9797 7658 65 8 0 9469 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 39188

[startup+2.99282 s]
/proc/loadavg: 0.25 0.86 1.40 3/88 1223
/proc/meminfo: memFree=1568176/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=46712 CPUtime=2.98
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 9563 0 0 0 294 4 0 0 25 0 1 0 186714002 47833088 9541 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 11678 9541 65 8 0 11350 0
Current children cumulated CPU time (s) 2.98
Current children cumulated vsize (KiB) 46712

[startup+6.27421 s]
/proc/loadavg: 0.39 0.88 1.40 3/90 1229
/proc/meminfo: memFree=1483104/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=66776 CPUtime=6.25
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 14583 0 0 0 620 5 0 0 25 0 1 0 186714002 68378624 14561 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 16694 14561 65 8 0 16366 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 66776

[startup+12.7459 s]
/proc/loadavg: 0.52 0.89 1.40 3/87 1230
/proc/meminfo: memFree=1179000/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=104528 CPUtime=12.69
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 23996 0 0 0 1260 9 0 0 25 0 1 0 186714002 107036672 23974 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 26132 23974 65 8 0 25804 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 104528

[startup+25.5704 s]
/proc/loadavg: 0.93 0.96 1.42 3/87 1230
/proc/meminfo: memFree=619448/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=179768 CPUtime=25.51
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 42822 0 0 0 2532 19 0 0 25 0 1 0 186714002 184082432 42800 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 44942 42800 65 8 0 44614 0
Current children cumulated CPU time (s) 25.51
Current children cumulated vsize (KiB) 179768

[startup+51.2183 s]
/proc/loadavg: 1.22 1.03 1.43 3/87 1939
/proc/meminfo: memFree=920312/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=330380 CPUtime=51.1
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 80474 0 0 0 5062 48 0 0 25 0 1 0 186714002 338309120 80452 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 82595 80452 65 8 0 82267 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 330380

[startup+102.419 s]
/proc/loadavg: 1.66 1.18 1.45 3/87 1940
/proc/meminfo: memFree=609664/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=629096 CPUtime=102.02
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 155151 0 0 0 10120 82 0 0 25 0 1 0 186714002 644194304 155129 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 157274 155129 65 8 0 156946 0
Current children cumulated CPU time (s) 102.02
Current children cumulated vsize (KiB) 629096



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+152.513 s]
/proc/loadavg: 1.85 1.30 1.48 3/87 1940
/proc/meminfo: memFree=310208/2055920 swapFree=4191880/4192956
[pid=569] ppid=567 vsize=922796 CPUtime=151.89
/proc/569/stat : 569 (VALCSP) R 567 569 472 0 -1 4194304 228573 0 0 0 15076 113 0 0 25 0 1 0 186714002 944943104 228551 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/569/statm: 230699 228551 65 8 0 230371 0
Current children cumulated CPU time (s) 151.89
Current children cumulated vsize (KiB) 922796

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 152.65
CPU time (s): 152.029
CPU user time (s): 150.765
CPU system time (s): 1.26381
CPU usage (%): 99.5932
Max. virtual memory (cumulated for all children) (KiB): 922796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 150.765
system time used= 1.26381
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 228573
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= 6
involuntary context switches= 5164

runsolver used 0.189971 s user time and 0.496924 s system time

The end



Launcher Data (download as text)




Begin job on node9 on Tue Jan  9 22:53:09 UTC 2007


IDJOB= 245848
IDBENCH= 10308
FILE ID= node9/245848-1168383183

PBS_JOBID= 3522475

Free space on /tmp= 66457 MiB

BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-800.xml
COMMAND LINE= /tmp/evaluation/245848-1168383183/VALCSP /tmp/evaluation/245848-1168383183/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-245848-1168383183 -o ROOT/results/node9/solver-245848-1168383183 -C 1800 -M 900  /tmp/evaluation/245848-1168383183/VALCSP /tmp/evaluation/245848-1168383183/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  ae3fb08e380de75bb270c4046c2f54ea

RANDOM SEED= 78212311

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.231
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		: 3000.231
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:       1608016 kB
Buffers:         50168 kB
Cached:         298536 kB
SwapCached:        408 kB
Active:         252608 kB
Inactive:       143324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1608016 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           93976 kB
Writeback:           0 kB
Mapped:          58828 kB
Slab:            37028 kB
Committed_AS:  6271452 kB
PageTables:       2172 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= 66405 MiB



End job on node9 on Tue Jan  9 22:55:41 UTC 2007