Trace number 245900

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
buggy_2_5 2007-01-08? (MO) 2.10668 33.1563

General information on the benchmark

NamelargeQueens/
queens-500.xml
MD5SUM5b25d062fefd9db3976f835c6c16921b
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 benchmark27.5908
SatisfiableYES
(Un)Satisfiability was proved
Number of variables500
Number of constraints124750
Maximum constraint arity2
Maximum domain size500
Number of constraints which are defined in extension0
Number of constraints which are defined in intension124750
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/node1/watcher-245900-1168703604 -o ROOT/results/node1/solver-245900-1168703604 -C 1800 -M 900 /tmp/evaluation/245900-1168703604/solver /tmp/evaluation/245900-1168703604/unknown 1800 

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: 0.81 1.65 1.71 5/82 1349
/proc/meminfo: memFree=1007640/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=0
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 295 0 0 0 0 0 0 0 18 0 1 0 218757344 5480448 232 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 232 194 169 0 49 0
[pid=1350] ppid=1348 vsize=0 CPUtime=0
/proc/1350/stat : 1350 (solver) D 1348 1348 478 0 -1 4194372 26 0 0 0 0 0 0 0 18 0 1 0 218757345 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 65538 18446744072100051646 0 0 17 1 0 0
/proc/1350/statm: 0 0 0 0 0 0 0
[pid=1351] ppid=1348 vsize=0 CPUtime=0
/proc/1351/stat : 1351 (grep) D 1348 1348 478 0 -1 4194308 164 0 0 0 0 0 0 0 18 0 1 0 218757345 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/1351/statm: 0 0 0 0 0 0 0

[startup+0.107218 s]
/proc/loadavg: 0.81 1.65 1.71 5/82 1349
/proc/meminfo: memFree=1007640/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=0
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 354 334 0 0 0 0 0 0 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.515262 s]
/proc/loadavg: 0.81 1.65 1.71 5/82 1349
/proc/meminfo: memFree=1007640/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=0
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 354 334 0 0 0 0 0 0 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+1.33635 s]
/proc/loadavg: 0.81 1.65 1.71 2/83 1355
/proc/meminfo: memFree=1002640/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=0
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 354 334 0 0 0 0 0 0 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
[pid=1353] ppid=1348 vsize=5352 CPUtime=0
/proc/1353/stat : 1353 (XML2BORD) S 1348 1348 478 0 -1 4194304 279 0 0 0 0 0 0 0 18 0 1 0 218757347 5480448 228 18446744073709551615 4194304 4889804 548682069424 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1353/statm: 1338 228 191 169 0 49 0
[pid=1354] ppid=1353 vsize=1488 CPUtime=1.29
/proc/1354/stat : 1354 (Xml2Bord) R 1353 1348 478 0 -1 4194304 128 0 0 0 125 4 0 0 25 0 1 0 218757347 1523712 104 18446744073709551615 134512640 134544448 4294956816 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1354/statm: 372 104 82 7 0 45 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 12192

[startup+2.97355 s]
/proc/loadavg: 0.82 1.64 1.70 3/85 1361
/proc/meminfo: memFree=976640/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=2.09
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 376 3861 0 27 0 0 194 15 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 5352

[startup+6.26093 s]
/proc/loadavg: 0.82 1.64 1.70 2/82 1364
/proc/meminfo: memFree=842080/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=2.09
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 376 3861 0 27 0 0 194 15 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
[pid=1362] ppid=1348 vsize=138296 CPUtime=3.78
/proc/1362/stat : 1362 (bordewijk) R 1348 1348 478 0 -1 4194304 34075 0 4 0 347 31 0 0 25 0 1 0 218757573 141615104 34051 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 134569030 0 0 4096 0 0 0 0 17 1 0 0
/proc/1362/statm: 34574 34052 204 97 0 33855 0
Current children cumulated CPU time (s) 5.87
Current children cumulated vsize (KiB) 143648

[startup+12.7187 s]
/proc/loadavg: 1.00 1.65 1.71 2/82 1364
/proc/meminfo: memFree=565368/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=2.09
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 376 3861 0 27 0 0 194 15 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
[pid=1362] ppid=1348 vsize=353588 CPUtime=10.24
/proc/1362/stat : 1362 (bordewijk) R 1348 1348 478 0 -1 4194304 87893 0 4 0 936 88 0 0 25 0 1 0 218757573 362074112 87869 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 1 0 0
/proc/1362/statm: 88397 87869 204 97 0 87678 0
Current children cumulated CPU time (s) 12.33
Current children cumulated vsize (KiB) 358940

[startup+25.5462 s]
/proc/loadavg: 1.00 1.63 1.70 2/82 1367
/proc/meminfo: memFree=335616/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=2.09
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 376 3861 0 27 0 0 194 15 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
[pid=1362] ppid=1348 vsize=499900 CPUtime=23.05
/proc/1362/stat : 1362 (bordewijk) R 1348 1348 478 0 -1 4194304 133767 0 4 0 2160 145 0 0 25 0 1 0 218757573 511897600 124311 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 134789925 0 0 4096 0 0 0 0 17 1 0 0
/proc/1362/statm: 124975 124311 211 97 0 124256 0
Current children cumulated CPU time (s) 25.14
Current children cumulated vsize (KiB) 505252



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+33.1431 s]
/proc/loadavg: 1.00 1.61 1.69 2/82 1367
/proc/meminfo: memFree=15680/2055920 swapFree=4165612/4192956
[pid=1348] ppid=1346 vsize=5352 CPUtime=2.09
/proc/1348/stat : 1348 (solver) S 1346 1348 478 0 -1 4194304 376 3861 0 27 0 0 194 15 16 0 1 0 218757344 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1348/statm: 1338 242 203 169 0 49 0
[pid=1362] ppid=1348 vsize=946064 CPUtime=30.62
/proc/1362/stat : 1362 (bordewijk) R 1348 1348 478 0 -1 4194304 270249 0 4 0 2833 229 0 0 25 0 1 0 218757573 968769536 234945 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 1 0 0
/proc/1362/statm: 236516 234949 215 97 0 235797 0
Current children cumulated CPU time (s) 32.71
Current children cumulated vsize (KiB) 951416

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 33.1563
CPU time (s): 2.10668
CPU user time (s): 1.9447
CPU system time (s): 0.161975
CPU usage (%): 6.35378
Max. virtual memory (cumulated for all children) (KiB): 951416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9447
system time used= 0.161975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4237
page faults= 27
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2240
involuntary context switches= 253

runsolver used 0.034994 s user time and 0.094985 s system time

The end



Launcher Data (download as text)




Begin job on node1 on Sat Jan 13 15:53:32 UTC 2007


IDJOB= 245900
IDBENCH= 10311
IDSOLVER= 83
FILE ID= node1/245900-1168703604

PBS_JOBID= 3546974

Free space on /tmp= 66538 MiB

SOLVER NAME= buggy_2_5 2007-01-08
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-500.xml
COMMAND LINE= /tmp/evaluation/245900-1168703604/solver /tmp/evaluation/245900-1168703604/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-245900-1168703604 -o ROOT/results/node1/solver-245900-1168703604 -C 1800 -M 900  /tmp/evaluation/245900-1168703604/solver /tmp/evaluation/245900-1168703604/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  5b25d062fefd9db3976f835c6c16921b

RANDOM SEED= 73407737

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		: 3000.234
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		: 3000.234
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:       1008056 kB
Buffers:         68372 kB
Cached:         880932 kB
SwapCached:       4260 kB
Active:         628680 kB
Inactive:       360744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1008056 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:           27124 kB
Writeback:           0 kB
Mapped:          49380 kB
Slab:            43500 kB
Committed_AS:  6754072 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= 66321 MiB



End job on node1 on Sat Jan 13 15:54:17 UTC 2007