Trace number 1880124

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 30.2494 30.2581

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111217555.opb
MD5SUM6e4ce17645d1ea8394af123256e7adc9
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 benchmark1.90071
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 1222
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-1880124-1245115535.opb
0.00/0.00	c File size is 9906 bytes.
0.00/0.00	c Highest Coefficient sum: 1222
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: 899
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      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
30.18/30.25	c      100    169      299    21828   73    11808    2820    200   1785 0.06
30.18/30.25	c      250    169      587    48924   83    25728    3103    488   1269 0.20
30.18/30.25	c      475    169     1014    91314   90    44846    3414    915    871 0.55
30.18/30.25	c      815    169     1655   152576   92    69388    3756   1556    626 1.30
30.18/30.25	c     1323    169     2581   242128   93   100196    4132   2482    417 3.17
30.18/30.25	c     2089    169     3976   371391   93   149358    4546   3877    278 7.49
30.18/30.25	c     3236    169     3715   347299   93   129292    5001   3616    185 17.42
30.18/30.25	c Backtracks by Clause: 3809
30.18/30.25	c Backtracks by PB constraint: 332
30.18/30.25	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
30.18/30.25	c    7     4763    736     6385     3925   351845   3826    157 30.25
30.18/30.25	s UNSATISFIABLE
30.18/30.25	c Total time: 30.246 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-1880124-1245115535/watcher-1880124-1245115535 -o /tmp/evaluation-result-1880124-1245115535/solver-1880124-1245115535 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880124-1245115535.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 1.09 3/65 32088
/proc/meminfo: memFree=915392/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=10708 CPUtime=0
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 258 0 0 0 0 0 0 0 20 0 1 0 168080003 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 2677 239 188 640 0 2033 0

[startup+0.0608771 s]
/proc/loadavg: 1.00 1.00 1.09 3/65 32088
/proc/meminfo: memFree=915392/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=11224 CPUtime=0.05
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 406 0 0 0 5 0 0 0 20 0 1 0 168080003 11493376 387 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 2806 387 196 640 0 2162 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11224

[startup+0.10188 s]
/proc/loadavg: 1.00 1.00 1.09 3/65 32088
/proc/meminfo: memFree=915392/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=11484 CPUtime=0.09
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 475 0 0 0 9 0 0 0 20 0 1 0 168080003 11759616 456 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 2871 456 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.301898 s]
/proc/loadavg: 1.00 1.00 1.09 3/65 32088
/proc/meminfo: memFree=915392/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=12264 CPUtime=0.29
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 667 0 0 0 29 0 0 0 22 0 1 0 168080003 12558336 648 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 3066 648 197 640 0 2422 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12264

[startup+0.701935 s]
/proc/loadavg: 1.00 1.00 1.09 3/65 32088
/proc/meminfo: memFree=915392/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=13308 CPUtime=0.69
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 919 0 0 0 69 0 0 0 25 0 1 0 168080003 13627392 900 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 3327 900 197 640 0 2683 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13308

[startup+1.50201 s]
/proc/loadavg: 1.00 1.00 1.09 2/66 32089
/proc/meminfo: memFree=911992/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=14596 CPUtime=1.49
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 1249 0 0 0 149 0 0 0 25 0 1 0 168080003 14946304 1230 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 3649 1230 197 640 0 3005 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14596

[startup+3.10116 s]
/proc/loadavg: 1.00 1.00 1.09 2/66 32089
/proc/meminfo: memFree=910456/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=16284 CPUtime=3.09
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 1659 0 0 0 308 1 0 0 25 0 1 0 168080003 16674816 1640 1992294400 134512640 137136520 4294956256 18446744073709551615 134544164 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 4071 1640 197 640 0 3427 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16284

[startup+6.30146 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=907576/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=18508 CPUtime=6.28
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2229 0 0 0 627 1 0 0 25 0 1 0 168080003 18952192 2210 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 4627 2210 197 640 0 3983 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 18508

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904952/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=20596 CPUtime=12.69
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2755 0 0 0 1267 2 0 0 25 0 1 0 168080003 21090304 2736 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5149 2736 197 640 0 4505 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 20596

[startup+25.5013 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=25.48
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 2546 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 21116

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

[startup+28.7016 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=28.68
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 2866 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 21116

[startup+29.5016 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=29.48
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 2946 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134544443 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 21116

[startup+29.9017 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=29.88
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 2986 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134544461 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (KiB) 21116

[startup+30.1017 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=30.08
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 3006 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134544162 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 30.08
Current children cumulated vsize (KiB) 21116

[startup+30.2017 s]
/proc/loadavg: 1.00 1.00 1.08 2/66 32089
/proc/meminfo: memFree=904384/2055920 swapFree=4192812/4192956
[pid=32088] ppid=32086 vsize=21116 CPUtime=30.18
/proc/32088/stat : 32088 (bsolo) R 32086 32088 32018 0 -1 4194304 2893 0 0 0 3016 2 0 0 25 0 1 0 168080003 21622784 2874 1992294400 134512640 137136520 4294956256 18446744073709551615 134544122 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32088/statm: 5279 2874 197 640 0 4635 0
Current children cumulated CPU time (s) 30.18
Current children cumulated vsize (KiB) 21116

Child status: 0
Real time (s): 30.2581
CPU time (s): 30.2494
CPU user time (s): 30.2174
CPU system time (s): 0.031995
CPU usage (%): 99.9713
Max. virtual memory (cumulated for all children) (KiB): 21116

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.2174
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2894
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= 48

runsolver used 0.036994 second user time and 0.081987 second system time

The end

Launcher Data 

Begin job on node8 at 2009-06-16 03:25:36
IDJOB=1880124
IDBENCH=1193
IDSOLVER=701
FILE ID=node8/1880124-1245115535
PBS_JOBID= 9363662
Free space on /tmp= 66316 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111217555.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880124-1245115535/watcher-1880124-1245115535 -o /tmp/evaluation-result-1880124-1245115535/solver-1880124-1245115535 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880124-1245115535.opb

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

MD5SUM BENCH= 6e4ce17645d1ea8394af123256e7adc9
RANDOM SEED=1802171134

node8.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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        915872 kB
Buffers:         89040 kB
Cached:         941156 kB
SwapCached:        140 kB
Active:         124396 kB
Inactive:       920732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        915872 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          24588 kB
Slab:            80720 kB
Committed_AS:   153136 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66312 MiB
End job on node8 at 2009-06-16 03:26:06