Trace number 1880130

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 21.0168 21.0323

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975965.opb
MD5SUM5a91e712d3aef81a2c9052622caecb97
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 benchmark2.76358
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 1171
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-1880130-1245115599.opb
0.00/0.00	c File size is 9896 bytes.
0.00/0.00	c Highest Coefficient sum: 1171
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: 897
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      878    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
20.98/21.03	c      100    169      296    21036   71    11589    2820    197   1724 0.06
20.98/21.03	c      251    169      584    47561   81    25676    3103    485   1287 0.20
20.98/21.03	c      477    169     1006    85196   84    45890    3414    907    884 0.54
20.98/21.03	c      815    169     1625   141780   87    71673    3756   1526    663 1.23
20.98/21.03	c     1326    169     2568   232270   90   102377    4132   2469    464 2.85
20.98/21.03	c     2090    169     3963   366449   92   139545    4546   3864    317 6.57
20.98/21.03	c     3236    169     3701   348485   94   131577    5001   3602    199 16.20
20.98/21.03	c Backtracks by Clause: 3027
20.98/21.03	c Backtracks by PB constraint: 305
20.98/21.03	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
20.98/21.03	c    7     3919    580     5255     4926   463198   4827    186 21.01
20.98/21.03	s UNSATISFIABLE
20.98/21.03	c Total time: 21.013 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-1880130-1245115599/watcher-1880130-1245115599 -o /tmp/evaluation-result-1880130-1245115599/solver-1880130-1245115599 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880130-1245115599.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: 0.99 0.97 1.00 3/64 3103
/proc/meminfo: memFree=1275408/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=10708 CPUtime=0
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179159944 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 2677 239 188 640 0 2033 0

[startup+0.0346699 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 3103
/proc/meminfo: memFree=1275408/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=10968 CPUtime=0.03
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 354 0 0 0 3 0 0 0 18 0 1 0 179159944 11231232 335 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 2742 335 197 640 0 2098 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10968

[startup+0.101677 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 3103
/proc/meminfo: memFree=1275408/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=11484 CPUtime=0.09
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 463 0 0 0 9 0 0 0 18 0 1 0 179159944 11759616 444 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 2871 444 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.301699 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 3103
/proc/meminfo: memFree=1275408/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=12260 CPUtime=0.29
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 661 0 0 0 29 0 0 0 19 0 1 0 179159944 12554240 642 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 3065 642 197 640 0 2421 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12260

[startup+0.701745 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 3103
/proc/meminfo: memFree=1275408/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=13296 CPUtime=0.69
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 915 0 0 0 69 0 0 0 22 0 1 0 179159944 13615104 896 1992294400 134512640 137136520 4294956256 18446744073709551615 135982505 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 3324 896 197 640 0 2680 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13296

[startup+1.50184 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 3104
/proc/meminfo: memFree=1271944/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=14592 CPUtime=1.49
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 1258 0 0 0 149 0 0 0 25 0 1 0 179159944 14942208 1239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 3648 1239 197 640 0 3004 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14592

[startup+3.10202 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 3104
/proc/meminfo: memFree=1270344/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=16424 CPUtime=3.09
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 1706 0 0 0 308 1 0 0 25 0 1 0 179159944 16818176 1687 1992294400 134512640 137136520 4294956256 18446744073709551615 134544431 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 4106 1687 197 640 0 3462 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16424

[startup+6.30139 s]
/proc/loadavg: 1.15 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1267080/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=18640 CPUtime=6.29
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2275 0 0 0 627 2 0 0 25 0 1 0 179159944 19087360 2256 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 4660 2256 197 640 0 4016 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18640

[startup+12.7011 s]
/proc/loadavg: 1.14 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20472 CPUtime=12.68
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2728 0 0 0 1266 2 0 0 25 0 1 0 179159944 20963328 2709 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5118 2709 197 640 0 4474 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 20472

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

[startup+13.2012 s]
/proc/loadavg: 1.14 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20472 CPUtime=13.18
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2728 0 0 0 1316 2 0 0 25 0 1 0 179159944 20963328 2709 1992294400 134512640 137136520 4294956256 18446744073709551615 134543948 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5118 2709 197 640 0 4474 0
Current children cumulated CPU time (s) 13.18
Current children cumulated vsize (KiB) 20472

[startup+16.4016 s]
/proc/loadavg: 1.13 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20472 CPUtime=16.38
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2728 0 0 0 1636 2 0 0 25 0 1 0 179159944 20963328 2709 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5118 2709 197 640 0 4474 0
Current children cumulated CPU time (s) 16.38
Current children cumulated vsize (KiB) 20472

[startup+19.6019 s]
/proc/loadavg: 1.13 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20472 CPUtime=19.57
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2728 0 0 0 1955 2 0 0 25 0 1 0 179159944 20963328 2709 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5118 2709 197 640 0 4474 0
Current children cumulated CPU time (s) 19.57
Current children cumulated vsize (KiB) 20472

[startup+20.402 s]
/proc/loadavg: 1.13 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20472 CPUtime=20.37
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2736 0 0 0 2035 2 0 0 25 0 1 0 179159944 20963328 2717 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5118 2717 197 640 0 4474 0
Current children cumulated CPU time (s) 20.37
Current children cumulated vsize (KiB) 20472

[startup+20.8011 s]
/proc/loadavg: 1.13 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20732 CPUtime=20.78
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2771 0 0 0 2075 3 0 0 25 0 1 0 179159944 21229568 2752 1992294400 134512640 137136520 4294956256 18446744073709551615 135982528 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5183 2752 197 640 0 4539 0
Current children cumulated CPU time (s) 20.78
Current children cumulated vsize (KiB) 20732

[startup+21.0011 s]
/proc/loadavg: 1.13 1.00 1.01 2/65 3104
/proc/meminfo: memFree=1264968/2055920 swapFree=4191900/4192956
[pid=3103] ppid=3101 vsize=20732 CPUtime=20.98
/proc/3103/stat : 3103 (bsolo) R 3101 3103 2914 0 -1 4194304 2789 0 0 0 2095 3 0 0 25 0 1 0 179159944 21229568 2770 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3103/statm: 5183 2770 197 640 0 4539 0
Current children cumulated CPU time (s) 20.98
Current children cumulated vsize (KiB) 20732

Child status: 0
Real time (s): 21.0323
CPU time (s): 21.0168
CPU user time (s): 20.9838
CPU system time (s): 0.032994
CPU usage (%): 99.9263
Max. virtual memory (cumulated for all children) (KiB): 20732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.9838
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2792
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= 28

runsolver used 0.114982 second user time and 0.224965 second system time

The end

Launcher Data 

Begin job on node28 at 2009-06-16 03:26:39
IDJOB=1880130
IDBENCH=1199
IDSOLVER=701
FILE ID=node28/1880130-1245115599
PBS_JOBID= 9363637
Free space on /tmp= 66176 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975965.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880130-1245115599/watcher-1880130-1245115599 -o /tmp/evaluation-result-1880130-1245115599/solver-1880130-1245115599 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880130-1245115599.opb

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

MD5SUM BENCH= 5a91e712d3aef81a2c9052622caecb97
RANDOM SEED=1874798005

node28.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		: 3000.231
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		: 3000.231
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:       1275824 kB
Buffers:         41840 kB
Cached:         659796 kB
SwapCached:        260 kB
Active:          74132 kB
Inactive:       641780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1275824 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4140 kB
Writeback:           0 kB
Mapped:          22592 kB
Slab:            49948 kB
Committed_AS:   141644 kB
PageTables:       1424 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= 66176 MiB
End job on node28 at 2009-06-16 03:27:00