Trace number 245912

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) 179.117 179.22

General information on the benchmark

NamelargeQueens/
queens-1000.xml
MD5SUM24563206a3688bcf26d5cd66cbbda335
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 benchmark440.78
SatisfiableYES
(Un)Satisfiability was proved
Number of variables1000
Number of constraints499500
Maximum constraint arity2
Maximum domain size1000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension499500
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/node11/watcher-245912-1168383264 -o ROOT/results/node11/solver-245912-1168383264 -C 1800 -M 900 /tmp/evaluation/245912-1168383264/VALCSP /tmp/evaluation/245912-1168383264/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: 1.17 1.03 1.07 5/88 31623
/proc/meminfo: memFree=1555672/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=3712 CPUtime=0
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 675 0 0 0 0 0 0 0 20 0 1 0 186721803 3801088 653 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8414843 0 0 4096 0 0 0 0 17 1 0 0
/proc/31622/statm: 928 653 62 8 0 600 0

[startup+0.108339 s]
/proc/loadavg: 1.17 1.03 1.07 5/88 31623
/proc/meminfo: memFree=1555672/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=48684 CPUtime=0.09
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 8979 0 0 0 6 3 0 0 20 0 1 0 186721803 49852416 8957 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/31622/statm: 12171 8957 65 8 0 11843 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 48684

[startup+0.516433 s]
/proc/loadavg: 1.17 1.03 1.07 5/88 31623
/proc/meminfo: memFree=1555672/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=48684 CPUtime=0.49
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 8979 0 0 0 46 3 0 0 24 0 1 0 186721803 49852416 8957 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 12171 8957 65 8 0 11843 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 48684

[startup+1.33859 s]
/proc/loadavg: 1.17 1.03 1.07 3/90 31629
/proc/meminfo: memFree=1490760/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=52512 CPUtime=1.32
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 9959 0 0 0 128 4 0 0 25 0 1 0 186721803 53772288 9937 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 13128 9937 65 8 0 12800 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 52512

[startup+2.98191 s]
/proc/loadavg: 1.17 1.03 1.07 3/87 31630
/proc/meminfo: memFree=1449440/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=60432 CPUtime=2.97
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 11918 0 0 0 292 5 0 0 25 0 1 0 186721803 61882368 11896 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 15108 11896 65 8 0 14780 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 60432

[startup+6.26156 s]
/proc/loadavg: 1.39 1.08 1.09 3/87 31630
/proc/meminfo: memFree=1297888/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=76008 CPUtime=6.24
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 15837 0 0 0 618 6 0 0 25 0 1 0 186721803 77832192 15815 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530975 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 19002 15815 65 8 0 18674 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 76008

[startup+12.7328 s]
/proc/loadavg: 1.44 1.10 1.09 3/87 31630
/proc/meminfo: memFree=988728/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=107424 CPUtime=12.71
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 23675 0 0 0 1261 10 0 0 25 0 1 0 186721803 110002176 23653 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 26856 23653 65 8 0 26528 0
Current children cumulated CPU time (s) 12.71
Current children cumulated vsize (KiB) 107424

[startup+25.5534 s]
/proc/loadavg: 1.56 1.14 1.11 3/87 31630
/proc/meminfo: memFree=722104/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=170124 CPUtime=25.52
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 39349 0 0 0 2536 16 0 0 25 0 1 0 186721803 174206976 39327 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530305 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 42531 39327 65 8 0 42203 0
Current children cumulated CPU time (s) 25.52
Current children cumulated vsize (KiB) 170124

[startup+51.1944 s]
/proc/loadavg: 1.61 1.19 1.12 2/81 32362
/proc/meminfo: memFree=1306608/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=295524 CPUtime=51.13
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 70699 0 0 0 5077 36 0 0 25 0 1 0 186721803 302616576 70677 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 73881 70677 65 8 0 73553 0
Current children cumulated CPU time (s) 51.13
Current children cumulated vsize (KiB) 295524

[startup+102.437 s]
/proc/loadavg: 1.26 1.16 1.11 2/78 632
/proc/meminfo: memFree=1060680/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=546324 CPUtime=102.36
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 133398 0 0 0 10172 64 0 0 25 0 1 0 186721803 559435776 133376 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530257 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 136581 133376 65 8 0 136253 0
Current children cumulated CPU time (s) 102.36
Current children cumulated vsize (KiB) 546324

[startup+162.485 s]
/proc/loadavg: 1.10 1.13 1.10 2/78 632
/proc/meminfo: memFree=762312/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=840156 CPUtime=162.38
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 206875 0 0 0 16146 92 0 0 25 0 1 0 186721803 860319744 206853 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 210039 206853 65 8 0 209711 0
Current children cumulated CPU time (s) 162.38
Current children cumulated vsize (KiB) 840156



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+179.081 s]
/proc/loadavg: 1.07 1.12 1.10 2/78 632
/proc/meminfo: memFree=679880/2055920 swapFree=4192812/4192956
[pid=31622] ppid=31620 vsize=922524 CPUtime=178.98
/proc/31622/stat : 31622 (VALCSP) R 31620 31622 30887 0 -1 4194304 227448 0 0 0 17798 100 0 0 25 0 1 0 186721803 944664576 227426 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/31622/statm: 230631 227426 65 8 0 230303 0
Current children cumulated CPU time (s) 178.98
Current children cumulated vsize (KiB) 922524

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 179.22
CPU time (s): 179.117
CPU user time (s): 177.982
CPU system time (s): 1.13483
CPU usage (%): 99.9424
Max. virtual memory (cumulated for all children) (KiB): 922524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 177.982
system time used= 1.13483
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 227448
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= 787

runsolver used 0.184971 s user time and 0.490925 s system time

The end



Launcher Data (download as text)




Begin job on node11 on Tue Jan  9 22:54:28 UTC 2007


IDJOB= 245912
IDBENCH= 10312
FILE ID= node11/245912-1168383264

PBS_JOBID= 3522484

Free space on /tmp= 66462 MiB

BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-1000.xml
COMMAND LINE= /tmp/evaluation/245912-1168383264/VALCSP /tmp/evaluation/245912-1168383264/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-245912-1168383264 -o ROOT/results/node11/solver-245912-1168383264 -C 1800 -M 900  /tmp/evaluation/245912-1168383264/VALCSP /tmp/evaluation/245912-1168383264/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  24563206a3688bcf26d5cd66cbbda335

RANDOM SEED= 331589253

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	: 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		: 3000.261
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:       1557112 kB
Buffers:         56024 kB
Cached:         327088 kB
SwapCached:          0 kB
Active:         268192 kB
Inactive:       176180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1557112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           93364 kB
Writeback:           0 kB
Mapped:          81120 kB
Slab:            38972 kB
Committed_AS:  6368288 kB
PageTables:       2416 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= 66489 MiB



End job on node11 on Tue Jan  9 22:57:29 UTC 2007