Trace number 1880184

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 1.58676 1.58737

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224929.opb
MD5SUM7cb47e44b2705fbf7948e62a414ce623
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 benchmark0.178972
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 1264
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-1880184-1245115895.opb
0.00/0.00	c File size is 9911 bytes.
0.00/0.00	c Highest Coefficient sum: 1264
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: 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      884    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
1.49/1.58	c      100    169      299    20898   69    12551    2820    200   1724 0.06
1.49/1.58	c      251    169      600    48346   80    28612    3103    501   1218 0.21
1.49/1.58	c      479    169     1049    88173   84    53192    3414    950    831 0.58
1.49/1.58	c      818    169     1725   150754   87    81352    3756   1626    585 1.40
1.49/1.58	c Backtracks by Clause: 722
1.49/1.58	c Backtracks by PB constraint: 139
1.49/1.58	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.49/1.58	c    4      869    193     1417     1825   158664   1726    548 1.58
1.49/1.58	s UNSATISFIABLE
1.49/1.58	c Total time: 1.584 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-1880184-1245115895/watcher-1880184-1245115895 -o /tmp/evaluation-result-1880184-1245115895/solver-1880184-1245115895 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880184-1245115895.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: 0.96 0.98 1.06 3/64 1250
/proc/meminfo: memFree=1419304/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=10708 CPUtime=0
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179190559 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 2677 239 188 640 0 2033 0

[startup+0.102483 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 1250
/proc/meminfo: memFree=1419304/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=11484 CPUtime=0.09
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 468 0 0 0 9 0 0 0 18 0 1 0 179190559 11759616 449 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 2871 449 196 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.201494 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 1250
/proc/meminfo: memFree=1419304/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=11876 CPUtime=0.19
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 584 0 0 0 19 0 0 0 18 0 1 0 179190559 12161024 565 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 2969 565 196 640 0 2325 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11876

[startup+0.301505 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 1250
/proc/meminfo: memFree=1419304/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=12268 CPUtime=0.29
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 675 0 0 0 29 0 0 0 19 0 1 0 179190559 12562432 656 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 3067 656 197 640 0 2423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12268

[startup+0.701552 s]
/proc/loadavg: 0.96 0.98 1.06 3/64 1250
/proc/meminfo: memFree=1419304/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=13312 CPUtime=0.69
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 933 0 0 0 69 0 0 0 22 0 1 0 179190559 13631488 914 1992294400 134512640 137136520 4294956256 18446744073709551615 134544256 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 3328 914 197 640 0 2684 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13312

[startup+1.50165 s]
/proc/loadavg: 0.96 0.98 1.06 2/65 1251
/proc/meminfo: memFree=1415584/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=14748 CPUtime=1.49
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 1285 0 0 0 148 1 0 0 25 0 1 0 179190559 15101952 1266 1992294400 134512640 137136520 4294956256 18446744073709551615 134544461 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 3687 1266 197 640 0 3043 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14748

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

[startup+1.50165 s]
/proc/loadavg: 0.96 0.98 1.06 2/65 1251
/proc/meminfo: memFree=1415584/2055920 swapFree=4191900/4192956
[pid=1250] ppid=1248 vsize=14748 CPUtime=1.49
/proc/1250/stat : 1250 (bsolo) R 1248 1250 864 0 -1 4194304 1285 0 0 0 148 1 0 0 25 0 1 0 179190559 15101952 1266 1992294400 134512640 137136520 4294956256 18446744073709551615 134544461 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1250/statm: 3687 1266 197 640 0 3043 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14748

Child status: 0
Real time (s): 1.58737
CPU time (s): 1.58676
CPU user time (s): 1.57476
CPU system time (s): 0.011998
CPU usage (%): 99.9614
Max. virtual memory (cumulated for all children) (KiB): 14748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.57476
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1305
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= 2

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node1 at 2009-06-16 03:31:35
IDJOB=1880184
IDBENCH=1253
IDSOLVER=701
FILE ID=node1/1880184-1245115895
PBS_JOBID= 9363668
Free space on /tmp= 66220 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111224929.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880184-1245115895/watcher-1880184-1245115895 -o /tmp/evaluation-result-1880184-1245115895/solver-1880184-1245115895 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880184-1245115895.opb

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

MD5SUM BENCH= 7cb47e44b2705fbf7948e62a414ce623
RANDOM SEED=853381612

node1.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		: 3000.245
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		: 3000.245
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:       1419784 kB
Buffers:         59548 kB
Cached:         482012 kB
SwapCached:        400 kB
Active:          77656 kB
Inactive:       477308 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1419784 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4220 kB
Writeback:           0 kB
Mapped:          22492 kB
Slab:            67184 kB
Committed_AS:   137740 kB
PageTables:       1436 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= 66216 MiB
End job on node1 at 2009-06-16 03:31:36