Trace number 2657646

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 3.2 ClUNSAT 31.2303 31.2417

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976935.opb
MD5SUM09a2a97c88821c18a87bc8c5a7b2e947
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 benchmark0.033994
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 1229
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 3.2 - 23/05/2010 : 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 Time Limit set to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Instance file HOME/instance-2657646-1276274673.opb
0.00/0.00	c File size is 9903 bytes.
0.00/0.00	c Highest Coefficient sum: 1229
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 901
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 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.
31.18/31.24	c      101    169      200     4294   21     1093    2820    101   7214 0.01
31.18/31.24	c      251    169      350    11033   31     1392    3103    251   8366 0.03
31.18/31.24	c      476    169      575    20324   35     1842    3414    476   8067 0.06
31.18/31.24	c      814    169      913    32243   35     2518    3756    814   7679 0.11
31.18/31.24	c     1323    169     1422    49045   34     3535    4132   1323   6819 0.19
31.18/31.24	c     2086    169     2185    76299   34     5061    4546   2086   5778 0.36
31.18/31.24	c     3232    169     3331   108891   32     7355    5001   3232   4860 0.67
31.18/31.24	c     4953    169     5052   155541   30    10796    5502   4953   3690 1.34
31.18/31.24	c     7537    169     4788   149587   31    10269    6053   4689   3184 2.37
31.18/31.24	c    11417    169     5549   200175   36    11790    6659   5450   2692 4.24
31.18/31.24	c    17239    169     4533   179152   39     9757    7325   4434   2378 7.25
31.18/31.24	c    25976    168     5731   200136   34    12153    8058   5632   2132 12.18
31.18/31.24	c    39088    168     6459   252635   39    13610    8864   6360   1947 20.07
31.18/31.24	c Backtracks by Clause: 0
31.18/31.24	c Backtracks by PB constraint: 0
31.18/31.24	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
31.18/31.24	c   13    53324  14327    85264     7069   291944   6970   1707 31.23
31.18/31.24	s UNSATISFIABLE
31.18/31.24	c Total time: 31.228 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-2657646-1276274673/watcher-2657646-1276274673 -o /tmp/evaluation-result-2657646-1276274673/solver-2657646-1276274673 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l1 HOME/instance-2657646-1276274673.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: 1.07 1.08 1.00 3/106 3927
/proc/meminfo: memFree=1574808/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=10792 CPUtime=0
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 333 0 0 0 0 0 0 0 24 0 1 0 1119153 11051008 248 1992294400 134512640 137138936 4293635744 18446744073709551615 134575820 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 2698 248 190 642 0 2054 0

[startup+0.0728529 s]
/proc/loadavg: 1.07 1.08 1.00 3/106 3927
/proc/meminfo: memFree=1574808/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=11044 CPUtime=0.06
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 416 0 0 0 6 0 0 0 24 0 1 0 1119153 11309056 331 1992294400 134512640 137138936 4293635744 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 2761 331 190 642 0 2117 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11044

[startup+0.100856 s]
/proc/loadavg: 1.07 1.08 1.00 3/106 3927
/proc/meminfo: memFree=1574808/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=11172 CPUtime=0.09
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 444 0 0 0 9 0 0 0 24 0 1 0 1119153 11440128 359 1992294400 134512640 137138936 4293635744 18446744073709551615 134542528 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 2793 359 190 642 0 2149 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11172

[startup+0.300891 s]
/proc/loadavg: 1.07 1.08 1.00 3/106 3927
/proc/meminfo: memFree=1574808/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=11808 CPUtime=0.29
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 591 0 0 0 29 0 0 0 25 0 1 0 1119153 12091392 506 1992294400 134512640 137138936 4293635744 18446744073709551615 134618336 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 2952 507 190 642 0 2308 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11808

[startup+0.700962 s]
/proc/loadavg: 1.07 1.08 1.00 3/106 3927
/proc/meminfo: memFree=1574808/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=12580 CPUtime=0.69
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 776 0 0 0 69 0 0 0 25 0 1 0 1119153 12881920 691 1992294400 134512640 137138936 4293635744 18446744073709551615 136511221 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 3145 691 190 642 0 2501 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12580

[startup+1.50111 s]
/proc/loadavg: 1.07 1.08 1.00 2/107 3928
/proc/meminfo: memFree=1572196/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=13480 CPUtime=1.49
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1003 0 0 0 148 1 0 0 25 0 1 0 1119153 13803520 918 1992294400 134512640 137138936 4293635744 18446744073709551615 134542233 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 3370 918 190 642 0 2726 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13480

[startup+3.10139 s]
/proc/loadavg: 1.07 1.08 1.00 2/107 3928
/proc/meminfo: memFree=1571204/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=13988 CPUtime=3.09
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1128 0 0 0 308 1 0 0 25 0 1 0 1119153 14323712 1043 1992294400 134512640 137138936 4293635744 18446744073709551615 136502659 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 3497 1043 190 642 0 2853 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13988

[startup+6.30096 s]
/proc/loadavg: 1.07 1.08 1.00 2/107 3928
/proc/meminfo: memFree=1570088/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=14732 CPUtime=6.29
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1322 0 0 0 626 3 0 0 25 0 1 0 1119153 15085568 1237 1992294400 134512640 137138936 4293635744 18446744073709551615 134602918 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 3683 1237 190 642 0 3039 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14732

[startup+12.7011 s]
/proc/loadavg: 1.06 1.08 1.00 2/107 3928
/proc/meminfo: memFree=1569468/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=15116 CPUtime=12.68
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1424 0 0 0 1263 5 0 0 25 0 1 0 1119153 15478784 1339 1992294400 134512640 137138936 4293635744 18446744073709551615 136296960 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 3779 1339 190 642 0 3135 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 15116

[startup+25.5004 s]
/proc/loadavg: 1.05 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568476/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16260 CPUtime=25.48
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1713 0 0 0 2538 10 0 0 25 0 1 0 1119153 16650240 1628 1992294400 134512640 137138936 4293635744 18446744073709551615 134542199 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4065 1628 190 642 0 3421 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16260

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

[startup+28.701 s]
/proc/loadavg: 1.04 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568476/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16260 CPUtime=28.68
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1713 0 0 0 2856 12 0 0 25 0 1 0 1119153 16650240 1628 1992294400 134512640 137138936 4293635744 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4065 1628 190 642 0 3421 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 16260

[startup+30.3012 s]
/proc/loadavg: 1.04 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568104/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16512 CPUtime=30.28
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1784 0 0 0 3016 12 0 0 25 0 1 0 1119153 16908288 1699 1992294400 134512640 137138936 4293635744 18446744073709551615 134542310 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4128 1699 190 642 0 3484 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 16512

[startup+30.7013 s]
/proc/loadavg: 1.04 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568104/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16512 CPUtime=30.69
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1784 0 0 0 3057 12 0 0 25 0 1 0 1119153 16908288 1699 1992294400 134512640 137138936 4293635744 18446744073709551615 134542214 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4128 1699 190 642 0 3484 0
Current children cumulated CPU time (s) 30.69
Current children cumulated vsize (KiB) 16512

[startup+31.1014 s]
/proc/loadavg: 1.04 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568104/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16512 CPUtime=31.08
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1784 0 0 0 3096 12 0 0 25 0 1 0 1119153 16908288 1699 1992294400 134512640 137138936 4293635744 18446744073709551615 134542770 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4128 1699 190 642 0 3484 0
Current children cumulated CPU time (s) 31.08
Current children cumulated vsize (KiB) 16512

[startup+31.2014 s]
/proc/loadavg: 1.04 1.07 1.00 2/107 3928
/proc/meminfo: memFree=1568104/2059040 swapFree=4192956/4192956
[pid=3927] ppid=3925 vsize=16512 CPUtime=31.18
/proc/3927/stat : 3927 (bsolo_pb10) R 3925 3927 2439 0 -1 4202496 1784 0 0 0 3106 12 0 0 25 0 1 0 1119153 16908288 1699 1992294400 134512640 137138936 4293635744 18446744073709551615 134542345 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/3927/statm: 4128 1699 190 642 0 3484 0
Current children cumulated CPU time (s) 31.18
Current children cumulated vsize (KiB) 16512

Child status: 0
Real time (s): 31.2417
CPU time (s): 31.2303
CPU user time (s): 31.1033
CPU system time (s): 0.12698
CPU usage (%): 99.9632
Max. virtual memory (cumulated for all children) (KiB): 16512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.1033
system time used= 0.12698
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1785
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= 1
involuntary context switches= 423

runsolver used 0.056991 second user time and 0.181972 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-11 18:44:33
IDJOB=2657646
IDBENCH=1209
IDSOLVER=1163
FILE ID=node027/2657646-1276274673
PBS_JOBID= 11172190
Free space on /tmp= 62448 MiB

SOLVER NAME= bsolo 3.2 Cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976935.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l1 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2657646-1276274673/watcher-2657646-1276274673 -o /tmp/evaluation-result-2657646-1276274673/solver-2657646-1276274673 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l1 HOME/instance-2657646-1276274673.opb

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

MD5SUM BENCH= 09a2a97c88821c18a87bc8c5a7b2e947
RANDOM SEED=1872689613

node027.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 2800.261
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5600.52
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		: 2800.261
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1575212 kB
Buffers:         46916 kB
Cached:         310620 kB
SwapCached:          0 kB
Active:         165884 kB
Inactive:       250948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1575212 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3980 kB
Writeback:           0 kB
AnonPages:       59204 kB
Mapped:          15484 kB
Slab:            45148 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181528 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62444 MiB
End job on node027 at 2010-06-11 18:45:04