Trace number 245899

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_s 2007-01-08? (MO) 1.57376 30.6921

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/node21/watcher-245899-1168703601 -o ROOT/results/node21/solver-245899-1168703601 -C 1800 -M 900 /tmp/evaluation/245899-1168703601/solver2 /tmp/evaluation/245899-1168703601/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: 0.89 1.67 1.72 4/81 24918
/proc/meminfo: memFree=1244200/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=0
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 295 0 0 0 0 0 0 0 18 0 1 0 218756103 5480448 232 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/24917/statm: 1338 232 194 169 0 49 0
[pid=24919] ppid=24917 vsize=0 CPUtime=0
/proc/24919/stat : 24919 (solver2) D 24917 24917 24035 0 -1 4194372 26 0 0 0 0 0 0 0 19 0 1 0 218756103 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 65538 18446744072100051646 0 0 17 1 0 0
/proc/24919/statm: 0 0 0 0 0 0 0
[pid=24920] ppid=24917 vsize=0 CPUtime=0
/proc/24920/stat : 24920 (grep) D 24917 24917 24035 0 -1 4194308 164 0 0 0 0 0 0 0 21 0 1 0 218756103 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/24920/statm: 0 0 0 0 0 0 0

[startup+0.10705 s]
/proc/loadavg: 0.89 1.67 1.72 4/81 24918
/proc/meminfo: memFree=1244200/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=0
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.517124 s]
/proc/loadavg: 0.89 1.67 1.72 4/81 24918
/proc/meminfo: memFree=1244200/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=0
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+1.34028 s]
/proc/loadavg: 0.90 1.66 1.71 2/85 24929
/proc/meminfo: memFree=1220424/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=0
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24922] ppid=24917 vsize=5356 CPUtime=0.79
/proc/24922/stat : 24922 (XML2BORD) S 24917 24917 24035 0 -1 4194304 384 540 0 0 0 0 72 7 17 0 1 0 218756105 5484544 234 18446744073709551615 4194304 4889804 548682069440 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24922/statm: 1339 234 196 169 0 50 0
[pid=24927] ppid=24922 vsize=2608 CPUtime=0
/proc/24927/stat : 24927 (gcc) S 24922 24917 24035 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 218756188 2670592 114 18446744073709551615 4194304 4289356 548682069472 18446744073709551615 221236486980 0 0 4096 16387 18446744071563356171 0 0 17 0 0 0
/proc/24927/statm: 652 114 90 23 0 43 0
[pid=24929] ppid=24927 vsize=14652 CPUtime=0.41
/proc/24929/stat : 24929 (cc1) R 24927 24917 24035 0 -1 4194304 2241 0 1 0 40 1 0 0 17 0 1 0 218756190 15003648 2184 18446744073709551615 4194304 8332500 548682069296 18446744073709551615 5971547 0 0 4096 1256 0 0 0 17 1 0 0
/proc/24929/statm: 3663 2184 279 1010 0 2067 0
[pid=24928] ppid=24922 vsize=3692 CPUtime=0.05
/proc/24928/stat : 24928 (grep) S 24922 24917 24035 0 -1 4194304 172 0 0 0 2 3 0 0 16 0 1 0 218756188 3780608 142 18446744073709551615 4194304 4274172 548682069488 18446744073709551615 221236658258 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/24928/statm: 923 142 109 19 0 47 0
Current children cumulated CPU time (s) 1.25
Current children cumulated vsize (KiB) 31660

[startup+2.97763 s]
/proc/loadavg: 0.90 1.66 1.71 2/82 24933
/proc/meminfo: memFree=1191456/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=1.57
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 376 3888 0 1 0 0 140 17 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24933] ppid=24917 vsize=55532 CPUtime=1.35
/proc/24933/stat : 24933 (bordewijk) R 24917 24917 24035 0 -1 4194304 13369 0 0 0 126 9 0 0 25 0 1 0 218756261 56864768 13341 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 8898328 0 0 4096 0 0 0 0 17 0 0 0
/proc/24933/statm: 13883 13342 204 97 0 13164 0
Current children cumulated CPU time (s) 2.92
Current children cumulated vsize (KiB) 60884

[startup+6.26421 s]
/proc/loadavg: 0.90 1.66 1.71 4/85 24971
/proc/meminfo: memFree=1037128/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=1.57
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 376 3888 0 1 0 0 140 17 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24933] ppid=24917 vsize=174068 CPUtime=4.62
/proc/24933/stat : 24933 (bordewijk) R 24917 24917 24035 0 -1 4194304 43010 0 0 0 426 36 0 0 25 0 1 0 218756261 178245632 42982 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 0 0 0
/proc/24933/statm: 43517 42982 204 97 0 42798 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 179420

[startup+12.7274 s]
/proc/loadavg: 1.06 1.67 1.71 2/82 24988
/proc/meminfo: memFree=744240/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=1.57
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 376 3888 0 1 0 0 140 17 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24933] ppid=24917 vsize=397016 CPUtime=11.07
/proc/24933/stat : 24933 (bordewijk) R 24917 24917 24035 0 -1 4194304 98730 0 0 0 1023 84 0 0 25 0 1 0 218756261 406544384 98702 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 0 0 0
/proc/24933/statm: 99254 98702 204 97 0 98535 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 402368

[startup+25.5459 s]
/proc/loadavg: 1.13 1.66 1.71 2/82 24995
/proc/meminfo: memFree=546224/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=1.57
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 376 3888 0 1 0 0 140 17 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24933] ppid=24917 vsize=521192 CPUtime=23.89
/proc/24933/stat : 24933 (bordewijk) R 24917 24917 24035 0 -1 4194304 139119 0 0 0 2253 136 0 0 25 0 1 0 218756261 533700608 129659 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 134692977 0 0 4096 0 0 0 0 17 0 0 0
/proc/24933/statm: 130298 129659 211 97 0 129579 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 526544



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+30.6788 s]
/proc/loadavg: 1.20 1.67 1.71 2/82 24995
/proc/meminfo: memFree=91184/2055920 swapFree=4156356/4192956
[pid=24917] ppid=24915 vsize=5352 CPUtime=1.57
/proc/24917/stat : 24917 (solver2) S 24915 24917 24035 0 -1 4194304 376 3888 0 1 0 0 140 17 16 0 1 0 218756103 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 221236486980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/24917/statm: 1338 242 203 169 0 49 0
[pid=24933] ppid=24917 vsize=932204 CPUtime=29.02
/proc/24933/stat : 24933 (bordewijk) R 24917 24917 24035 0 -1 4194304 266758 0 0 0 2689 213 0 0 25 0 1 0 218756261 954576896 231450 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 0 0 0
/proc/24933/statm: 233051 231455 215 97 0 232332 0
Current children cumulated CPU time (s) 30.59
Current children cumulated vsize (KiB) 937556

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 30.6921
CPU time (s): 1.57376
CPU user time (s): 1.40079
CPU system time (s): 0.172973
CPU usage (%): 5.12757
Max. virtual memory (cumulated for all children) (KiB): 937556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40079
system time used= 0.172973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4264
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= 2237
involuntary context switches= 165

runsolver used 0.034994 s user time and 0.088986 s system time

The end



Launcher Data (download as text)




Begin job on node21 on Sat Jan 13 15:53:30 UTC 2007


IDJOB= 245899
IDBENCH= 10311
IDSOLVER= 82
FILE ID= node21/245899-1168703601

PBS_JOBID= 3547217

Free space on /tmp= 66539 MiB

SOLVER NAME= buggy_2_5_s 2007-01-08
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-500.xml
COMMAND LINE= /tmp/evaluation/245899-1168703601/solver2 /tmp/evaluation/245899-1168703601/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-245899-1168703601 -o ROOT/results/node21/solver-245899-1168703601 -C 1800 -M 900  /tmp/evaluation/245899-1168703601/solver2 /tmp/evaluation/245899-1168703601/unknown 1800

META MD5SUM SOLVER= 2182e29fee250f6e45b9a85a6429fa3a
MD5SUM BENCH=  5b25d062fefd9db3976f835c6c16921b

RANDOM SEED= 252864412

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		: 3000.261
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		: 3000.261
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:       1244344 kB
Buffers:         45972 kB
Cached:         678248 kB
SwapCached:       3176 kB
Active:         137720 kB
Inactive:       616604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1244344 kB
SwapTotal:     4192956 kB
SwapFree:      4156356 kB
Dirty:           26348 kB
Writeback:           0 kB
Mapped:          38716 kB
Slab:            42536 kB
Committed_AS:  4264956 kB
PageTables:       1988 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 node21 on Sat Jan 13 15:54:09 UTC 2007