Trace number 1878892

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 clSAT 0.101983 0.102567

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/
FPGA_SAT05/normalized-fpga25_25_sat_pb.cnf.cr.opb
MD5SUM67169e121732ee6d464f6ac82d33a699
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.036993
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables938
Total number of constraints700
Number of constraints which are clauses650
Number of constraints which are cardinality constraints (but not clauses)50
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint12
Maximum length of a constraint25
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
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: Clause 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-1878892-1245126613.opb
0.00/0.00	c File size is 84931 bytes.
0.00/0.01	c Highest Coefficient sum: 26
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.012 s
0.00/0.01	c Var: 938 Constr: 700 650/50/0 Lit: 10013 Watch. Lit: 2238
0.00/0.01	c Obj. Vars: 0 (0 % of total variables)
0.00/0.04	c Pre-processing Time: 0.044 s
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c        0    938      700    10013   14     2238    6420      0      0 0.04
0.00/0.04	c Switching off lower bounding mode.
0.09/0.10	c      100    938      800    22844   28     2438    7063    100   1754 0.06
0.09/0.10	c      251    938      951    43191   45     2740    7770    251   3217 0.08
0.09/0.10	c Backtracks by Clause: 0
0.09/0.10	c Backtracks by PB constraint: 0
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-x526 -x527 -x532 -x533 -x539 -x540 -x542 -x543 -x545 -x548 -x550 -x518 -x53 -x506 -x400 -x101 -x138 -x440 -x186 -x351 -x132 -x377 -x378 -x379 -x381 -x383 -x385 -x387 -x388 -x390 -x391 -x392 -x393 -x398 -x399 -x75 -x192 -x598 -x176 -x179 -x183 -x189 -x195 -x196 -x200 -x429 -x103 -x514 -x510 -x512 -x520 -x521 -x524 -x355 -x371 -x364 -x54 -x58 -x62 -x65 -x579 -x580 -x591 -x593 -x594 -x596 -x597 -x372 -x147 -x146 -x441 -x358 -x128 -x134 -x136 -x108 -x448 -x449 -x102 -x124 -x366 -x431 -x435 
0.09/0.10	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.10	c    2      448    135     2897     1148    59190    448   4525 0.10
0.09/0.10	s SATISFIABLE
0.09/0.10	c Total time: 0.099 s

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1878892-1245126613/watcher-1878892-1245126613 -o /tmp/evaluation-result-1878892-1245126613/solver-1878892-1245126613 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878892-1245126613.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: 0.92 0.98 0.99 3/64 1688
/proc/meminfo: memFree=1775472/2055920 swapFree=4191900/4192956
[pid=1688] ppid=1686 vsize=10788 CPUtime=0
/proc/1688/stat : 1688 (bsolo) R 1686 1688 501 0 -1 4194304 245 0 0 0 0 0 0 0 18 0 1 0 180262028 11046912 229 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1688/statm: 2697 229 175 640 0 2032 0

[startup+0.0650281 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1688
/proc/meminfo: memFree=1775472/2055920 swapFree=4191900/4192956
[pid=1688] ppid=1686 vsize=11228 CPUtime=0.06
/proc/1688/stat : 1688 (bsolo) R 1686 1688 501 0 -1 4194304 420 0 0 0 6 0 0 0 18 0 1 0 180262028 11497472 383 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1688/statm: 2807 383 196 640 0 2163 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11228

[startup+0.101032 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1688
/proc/meminfo: memFree=1775472/2055920 swapFree=4191900/4192956
[pid=1688] ppid=1686 vsize=11604 CPUtime=0.09
/proc/1688/stat : 1688 (bsolo) R 1686 1688 501 0 -1 4194304 530 0 0 0 9 0 0 0 18 0 1 0 180262028 11882496 493 1992294400 134512640 137136520 4294956256 18446744073709551615 134573092 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1688/statm: 2901 493 196 640 0 2257 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11604

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

Child status: 0
Real time (s): 0.102567
CPU time (s): 0.101983
CPU user time (s): 0.100984
CPU system time (s): 0.000999
CPU usage (%): 99.4305
Max. virtual memory (cumulated for all children) (KiB): 11604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.100984
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 537
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= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node9 at 2009-06-16 06:30:13
IDJOB=1878892
IDBENCH=1405
IDSOLVER=700
FILE ID=node9/1878892-1245126613
PBS_JOBID= 9363670
Free space on /tmp= 66160 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-fpga25_25_sat_pb.cnf.cr.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878892-1245126613/watcher-1878892-1245126613 -o /tmp/evaluation-result-1878892-1245126613/solver-1878892-1245126613 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878892-1245126613.opb

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

MD5SUM BENCH= 67169e121732ee6d464f6ac82d33a699
RANDOM SEED=281242564

node9.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:       1775888 kB
Buffers:         29912 kB
Cached:         183348 kB
SwapCached:        260 kB
Active:          69980 kB
Inactive:       156052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1775888 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4024 kB
Writeback:           0 kB
Mapped:          21944 kB
Slab:            40044 kB
Committed_AS:   149732 kB
PageTables:       1392 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= 66160 MiB
End job on node9 at 2009-06-16 06:30:14