Trace number 1773728

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
CircUs 2009-03-23UNSAT 7.79181 7.79506

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl016.cnf
MD5SUM505fee3283f518ccb9d234f549b3c214
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.75658
Satisfiable
(Un)Satisfiability was proved
Number of variables4567
Number of clauses13652
Sum of the clauses size31852
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 29100
Number of clauses of size 34550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.07	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.00/0.07	c Eliminate time :       0.06 
7.69/7.79	c CNF read time  :       0.01 
7.69/7.79	c CNF solve time :       7.77 
7.69/7.79	c Memory usage :    4.42578 MB
7.69/7.79	c Restart : 29
7.69/7.79	c Decisions : random(629), heuristic(44514), history(0/0)
7.69/7.79	c Implications : 10967104
7.69/7.79	c Forced Restart : 0
7.69/7.79	c Polarity Change : 108
7.69/7.79	c Learned clasues  : 2262 out of 34896
7.69/7.79	c Learned literals : 25884 out of 742650
7.69/7.79	c Number of first UIP : 7334 out of 34896
7.69/7.79	c Number of simplify : 5
7.69/7.79	c Number of continuous distill : 165
7.69/7.79	c Average depth of OTS : 36
7.69/7.79	c Average depth of additional conflict : 306
7.69/7.79	c Saved conflict clasues : 91
7.69/7.79	c Saved conflict literals : 507
7.69/7.79	c Additional conflict clauses : 749
7.69/7.79	c Additional conflict literals : 10059
7.69/7.79	c Additional conflict analysis : 6558
7.69/7.79	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1773728-1241318508/watcher-1773728-1241318508 -o /tmp/evaluation-result-1773728-1241318508/solver-1773728-1241318508 -C 10000 -W 12000 -M 1800 HOME/CirCUs HOME/instance-1773728-1241318508.cnf -t 10000 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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 27712
/proc/meminfo: memFree=1151904/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=1768 CPUtime=0
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 231 0 0 0 0 0 0 0 18 0 1 1000000 159877545 1810432 216 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 442 216 70 173 0 267 0

[startup+0.086855 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27712
/proc/meminfo: memFree=1151904/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=3604 CPUtime=0.08
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 731 0 0 0 8 0 0 0 18 0 1 1000000 159877545 3690496 715 1992294400 134512640 135224549 4294956224 18446744073709551615 134595318 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 901 715 93 173 0 726 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3604

[startup+0.101857 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27712
/proc/meminfo: memFree=1151904/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=3604 CPUtime=0.09
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 731 0 0 0 9 0 0 0 18 0 1 1000000 159877545 3690496 715 1992294400 134512640 135224549 4294956224 18446744073709551615 134595322 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 901 715 93 173 0 726 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3604

[startup+0.301892 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27712
/proc/meminfo: memFree=1151904/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=3736 CPUtime=0.29
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 748 0 0 0 29 0 0 0 19 0 1 1000000 159877545 3825664 732 1992294400 134512640 135224549 4294956224 18446744073709551615 134585011 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 934 732 93 173 0 759 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3736

[startup+0.701964 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 27712
/proc/meminfo: memFree=1151904/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4000 CPUtime=0.69
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 809 0 0 0 69 0 0 0 22 0 1 1000000 159877545 4096000 793 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1000 793 93 173 0 825 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4000

[startup+1.50111 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1149016/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4000 CPUtime=1.49
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 825 0 0 0 149 0 0 0 25 0 1 1000000 159877545 4096000 809 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1000 809 93 173 0 825 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4000

[startup+3.10139 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1148888/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4132 CPUtime=3.09
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 847 0 0 0 309 0 0 0 25 0 1 1000000 159877545 4231168 831 1992294400 134512640 135224549 4294956224 18446744073709551615 134587793 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1033 831 93 173 0 858 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4132

[startup+6.30297 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1148440/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4528 CPUtime=6.29
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 938 0 0 0 629 0 0 0 25 0 1 1000000 159877545 4636672 922 1992294400 134512640 135224549 4294956224 18446744073709551615 134595295 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1132 922 93 173 0 957 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4528

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

[startup+7.10111 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1148392/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4528 CPUtime=7.08
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 941 0 0 0 708 0 0 0 25 0 1 1000000 159877545 4636672 925 1992294400 134512640 135224549 4294956224 18446744073709551615 134595766 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1132 925 93 173 0 957 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 4528

[startup+7.50118 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1148392/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4528 CPUtime=7.48
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 957 0 0 0 748 0 0 0 25 0 1 1000000 159877545 4636672 941 1992294400 134512640 135224549 4294956224 18446744073709551615 134595315 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1132 941 93 173 0 957 0
Current children cumulated CPU time (s) 7.48
Current children cumulated vsize (KiB) 4528

[startup+7.70522 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 27713
/proc/meminfo: memFree=1148328/2055920 swapFree=4181016/4192956
[pid=27712] ppid=27710 vsize=4528 CPUtime=7.69
/proc/27712/stat : 27712 (CirCUs) R 27710 27712 27675 0 -1 4194304 957 0 0 0 769 0 0 0 25 0 1 1000000 159877545 4636672 941 1992294400 134512640 135224549 4294956224 18446744073709551615 134595275 0 0 4096 8192 0 0 0 17 1 0 0
/proc/27712/statm: 1132 941 93 173 0 957 0
Current children cumulated CPU time (s) 7.69
Current children cumulated vsize (KiB) 4528

Child status: 0
Real time (s): 7.79506
CPU time (s): 7.79181
CPU user time (s): 7.78182
CPU system time (s): 0.009998
CPU usage (%): 99.9584
Max. virtual memory (cumulated for all children) (KiB): 4528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.78182
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 961
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= 23

runsolver used 0.005999 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node60 at 2009-05-03 04:41:48
IDJOB=1773728
IDBENCH=70783
IDSOLVER=614
FILE ID=node60/1773728-1241318508
PBS_JOBID= 9225320
Free space on /tmp= 66500 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl016.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773728-1241318508/watcher-1773728-1241318508 -o /tmp/evaluation-result-1773728-1241318508/solver-1773728-1241318508 -C 10000 -W 12000 -M 1800  HOME/CirCUs HOME/instance-1773728-1241318508.cnf -t 10000

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 505fee3283f518ccb9d234f549b3c214
RANDOM SEED=1018722585

node60.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		: 3000.256
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		: 3000.256
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:       1152320 kB
Buffers:         73068 kB
Cached:         727180 kB
SwapCached:       6096 kB
Active:          56800 kB
Inactive:       752136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1152320 kB
SwapTotal:     4192956 kB
SwapFree:      4181016 kB
Dirty:            1308 kB
Writeback:           0 kB
Mapped:          14172 kB
Slab:            80600 kB
Committed_AS:   721500 kB
PageTables:       1448 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= 66500 MiB
End job on node60 at 2009-05-03 04:41:56