Trace number 1725540

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 15.2737 15.2804

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.063989
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.00/0.03	c Eliminate time :          0 
15.18/15.28	c CNF read time  :       0.02 
15.18/15.28	c CNF solve time :      15.24 
15.18/15.28	c Memory usage :    13.3281 MB
15.18/15.28	c Restart : 414
15.18/15.28	c Decisions : random(71886), heuristic(3645424), history(0/0)
15.18/15.28	c Implications : 7479400
15.18/15.28	c Forced Restart : 0
15.18/15.28	c Polarity Change : 1074
15.18/15.28	c Learned clasues  : 18251 out of 455081
15.18/15.28	c Learned literals : 258014 out of 6158032
15.18/15.28	c Number of first UIP : 183570 out of 455081
15.18/15.28	c Number of simplify : 0
15.18/15.28	c Number of continuous distill : 83265
15.18/15.28	c Average depth of OTS : 6
15.18/15.28	c Average depth of additional conflict : 9
15.18/15.28	c Saved conflict clasues : 45001
15.18/15.28	c Saved conflict literals : 528074
15.18/15.28	c Additional conflict clauses : 9096
15.18/15.28	c Additional conflict literals : 113364
15.18/15.28	c Additional conflict analysis : 13363
15.18/15.28	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-1725540-1240705296/watcher-1725540-1240705296 -o /tmp/evaluation-result-1725540-1240705296/solver-1725540-1240705296 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1725540-1240705296.cnf -t 1200 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 26843
/proc/meminfo: memFree=1729616/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=1988 CPUtime=0
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 270 0 0 0 0 0 0 0 18 0 1 120000 98563407 2035712 255 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 497 255 70 173 0 322 0

[startup+0.0908741 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 26843
/proc/meminfo: memFree=1729616/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=2856 CPUtime=0.08
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 520 0 0 0 8 0 0 0 18 0 1 120000 98563407 2924544 504 1992294400 134512640 135224549 4294956224 18446744073709551615 134638485 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 714 504 89 173 0 539 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2856

[startup+0.101875 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 26843
/proc/meminfo: memFree=1729616/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=2856 CPUtime=0.09
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 526 0 0 0 9 0 0 0 18 0 1 120000 98563407 2924544 510 1992294400 134512640 135224549 4294956224 18446744073709551615 134638533 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 714 510 89 173 0 539 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2856

[startup+0.301909 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 26843
/proc/meminfo: memFree=1729616/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=3388 CPUtime=0.29
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 654 0 0 0 29 0 0 0 19 0 1 120000 98563407 3469312 638 1992294400 134512640 135224549 4294956224 18446744073709551615 134726407 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 847 638 89 173 0 672 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3388

[startup+0.701978 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 26843
/proc/meminfo: memFree=1729616/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=3916 CPUtime=0.69
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 812 0 0 0 69 0 0 0 22 0 1 120000 98563407 4009984 796 1992294400 134512640 135224549 4294956224 18446744073709551615 134595552 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 979 796 89 173 0 804 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3916

[startup+1.50112 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 26844
/proc/meminfo: memFree=1726280/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=5008 CPUtime=1.49
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 1072 0 0 0 149 0 0 0 25 0 1 120000 98563407 5128192 1056 1992294400 134512640 135224549 4294956224 18446744073709551615 134638352 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 1252 1056 89 173 0 1077 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5008

[startup+3.1014 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 26844
/proc/meminfo: memFree=1724680/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=6864 CPUtime=3.09
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 1554 0 0 0 309 0 0 0 25 0 1 120000 98563407 7028736 1538 1992294400 134512640 135224549 4294956224 18446744073709551615 134631531 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 1716 1538 89 173 0 1541 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6864

[startup+6.30196 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 26844
/proc/meminfo: memFree=1721672/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=9768 CPUtime=6.29
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 2260 0 0 0 628 1 0 0 25 0 1 120000 98563407 10002432 2211 1992294400 134512640 135224549 4294956224 18446744073709551615 134595219 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 2442 2211 89 173 0 2267 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 9768

[startup+12.7011 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 26844
/proc/meminfo: memFree=1718672/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=12560 CPUtime=12.69
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 2993 0 0 0 1268 1 0 0 25 0 1 120000 98563407 12861440 2944 1992294400 134512640 135224549 4294956224 18446744073709551615 134632717 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 3140 2944 89 173 0 2965 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 12560

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

[startup+14.3054 s]
/proc/loadavg: 0.93 0.96 0.97 2/65 26844
/proc/meminfo: memFree=1717520/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=12956 CPUtime=14.29
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 3083 0 0 0 1428 1 0 0 25 0 1 120000 98563407 13266944 3034 1992294400 134512640 135224549 4294956224 18446744073709551615 134595571 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 3239 3034 89 173 0 3064 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 12956

[startup+14.7014 s]
/proc/loadavg: 0.93 0.96 0.97 2/65 26844
/proc/meminfo: memFree=1717520/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=12956 CPUtime=14.68
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 3106 0 0 0 1467 1 0 0 25 0 1 120000 98563407 13266944 3057 1992294400 134512640 135224549 4294956224 18446744073709551615 134595683 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 3239 3057 89 173 0 3064 0
Current children cumulated CPU time (s) 14.68
Current children cumulated vsize (KiB) 12956

[startup+15.1015 s]
/proc/loadavg: 0.93 0.96 0.97 2/65 26844
/proc/meminfo: memFree=1717520/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=13644 CPUtime=15.08
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 3240 0 0 0 1507 1 0 0 25 0 1 120000 98563407 13971456 3126 1992294400 134512640 135224549 4294956224 18446744073709551615 134631398 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 3411 3126 89 173 0 3236 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 13644

[startup+15.2015 s]
/proc/loadavg: 0.93 0.96 0.97 2/65 26844
/proc/meminfo: memFree=1717520/2055920 swapFree=4181852/4192956
[pid=26843] ppid=26841 vsize=13644 CPUtime=15.18
/proc/26843/stat : 26843 (CirCUs) R 26841 26843 26444 0 -1 4194304 3240 0 0 0 1517 1 0 0 25 0 1 120000 98563407 13971456 3126 1992294400 134512640 135224549 4294956224 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/26843/statm: 3411 3126 89 173 0 3236 0
Current children cumulated CPU time (s) 15.18
Current children cumulated vsize (KiB) 13644

Child status: 0
Real time (s): 15.2804
CPU time (s): 15.2737
CPU user time (s): 15.2567
CPU system time (s): 0.016997
CPU usage (%): 99.9559
Max. virtual memory (cumulated for all children) (KiB): 13644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.2567
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3245
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= 43

runsolver used 0.013997 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node7 at 2009-04-26 02:21:36
IDJOB=1725540
IDBENCH=24589
IDSOLVER=544
FILE ID=node7/1725540-1240705296
PBS_JOBID= 9186777
Free space on /tmp= 66200 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725540-1240705296/watcher-1725540-1240705296 -o /tmp/evaluation-result-1725540-1240705296/solver-1725540-1240705296 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1725540-1240705296.cnf -t 1200

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=1055366750

node7.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:       1730096 kB
Buffers:         40412 kB
Cached:         216772 kB
SwapCached:       4616 kB
Active:         103884 kB
Inactive:       160820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730096 kB
SwapTotal:     4192956 kB
SwapFree:      4181852 kB
Dirty:            1344 kB
Writeback:           0 kB
Mapped:          13420 kB
Slab:            47140 kB
Committed_AS:   680168 kB
PageTables:       1444 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= 66200 MiB
End job on node7 at 2009-04-26 02:21:51