Trace number 1880120

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
bsolo 3.1 pbUNSAT 3.75443 3.75571

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110977780.opb
MD5SUMadb656a15e659ae7735494d2d3ad9316
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.040992
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1327
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Generic Pseudo-Boolean Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1880120-1245115501.opb
0.00/0.00	c File size is 9916 bytes.
0.00/0.00	c Highest Coefficient sum: 1327
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 904
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.005 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    169       99     1179   11      883    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
3.69/3.75	c      100    169      293    18608   63    12720    2820    194   1851 0.05
3.69/3.75	c      251    169      586    43839   74    28061    3103    487   1248 0.20
3.69/3.75	c      478    169     1020    84883   83    47320    3414    921    910 0.53
3.69/3.75	c      821    169     1663   143980   86    74894    3756   1564    704 1.17
3.69/3.75	c     1331    169     2555   226333   88   102583    4132   2456    500 2.66
3.69/3.75	c Backtracks by Clause: 1155
3.69/3.75	c Backtracks by PB constraint: 186
3.69/3.75	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.69/3.75	c    5     1605    337     2587     3016   265998   2917    427 3.75
3.69/3.75	s UNSATISFIABLE
3.69/3.75	c Total time: 3.751 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1880120-1245115501/watcher-1880120-1245115501 -o /tmp/evaluation-result-1880120-1245115501/solver-1880120-1245115501 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880120-1245115501.opb 

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): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 32213
/proc/meminfo: memFree=1086264/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=10708 CPUtime=0
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179147365 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 2677 239 188 640 0 2033 0

[startup+0.0959431 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 32213
/proc/meminfo: memFree=1086264/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=11484 CPUtime=0.09
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 461 0 0 0 9 0 0 0 18 0 1 0 179147365 11759616 442 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 2871 442 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.101943 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 32213
/proc/meminfo: memFree=1086264/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=11484 CPUtime=0.09
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 471 0 0 0 9 0 0 0 18 0 1 0 179147365 11759616 452 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 2871 452 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.301962 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 32213
/proc/meminfo: memFree=1086264/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=12260 CPUtime=0.29
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 653 0 0 0 29 0 0 0 19 0 1 0 179147365 12554240 634 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 3065 634 197 640 0 2421 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12260

[startup+0.702002 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 32213
/proc/meminfo: memFree=1086264/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=13436 CPUtime=0.69
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 950 0 0 0 69 0 0 0 22 0 1 0 179147365 13758464 931 1992294400 134512640 137136520 4294956256 18446744073709551615 134616760 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 3359 931 197 640 0 2715 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13436

[startup+1.50208 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 32214
/proc/meminfo: memFree=1082608/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=14876 CPUtime=1.49
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 1310 0 0 0 149 0 0 0 25 0 1 0 179147365 15233024 1291 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 3719 1291 197 640 0 3075 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14876

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 32214
/proc/meminfo: memFree=1080944/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=16560 CPUtime=3.09
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 1733 0 0 0 308 1 0 0 25 0 1 0 179147365 16957440 1714 1992294400 134512640 137136520 4294956256 18446744073709551615 136502406 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 4140 1714 197 640 0 3496 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16560

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

[startup+3.50128 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 32214
/proc/meminfo: memFree=1079920/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=16824 CPUtime=3.49
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 1808 0 0 0 348 1 0 0 25 0 1 0 179147365 17227776 1789 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 4206 1789 197 640 0 3562 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 16824

[startup+3.7013 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 32214
/proc/meminfo: memFree=1079920/2055920 swapFree=4192812/4192956
[pid=32213] ppid=32211 vsize=16952 CPUtime=3.69
/proc/32213/stat : 32213 (bsolo) R 32211 32213 31844 0 -1 4194304 1850 0 0 0 368 1 0 0 25 0 1 0 179147365 17358848 1831 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32213/statm: 4238 1831 197 640 0 3594 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 16952

Child status: 0
Real time (s): 3.75571
CPU time (s): 3.75443
CPU user time (s): 3.74043
CPU system time (s): 0.013997
CPU usage (%): 99.9659
Max. virtual memory (cumulated for all children) (KiB): 16952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.74043
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1861
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= 2
involuntary context switches= 6

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node36 at 2009-06-16 03:25:01
IDJOB=1880120
IDBENCH=1189
IDSOLVER=701
FILE ID=node36/1880120-1245115501
PBS_JOBID= 9363652
Free space on /tmp= 66200 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110977780.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880120-1245115501/watcher-1880120-1245115501 -o /tmp/evaluation-result-1880120-1245115501/solver-1880120-1245115501 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880120-1245115501.opb

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

MD5SUM BENCH= adb656a15e659ae7735494d2d3ad9316
RANDOM SEED=205649380

node36.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		: 3000.230
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		: 3000.230
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:       1086680 kB
Buffers:         31912 kB
Cached:         872624 kB
SwapCached:          0 kB
Active:          70372 kB
Inactive:       847980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1086680 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4212 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            36932 kB
Committed_AS:   154892 kB
PageTables:       1360 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= 66196 MiB
End job on node36 at 2009-06-16 03:25:04