Trace number 1553343

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 8.71867 8.72103

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.27	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.19/0.27	c Eliminate time :       0.24 
8.69/8.72	c CNF read time  :       0.02 
8.69/8.72	c CNF solve time :       8.68 
8.69/8.72	c Memory usage :    11.6055 MB
8.69/8.72	c Restart : 118
8.69/8.72	c Decisions : random(3324), heuristic(242549), history(0/0)
8.69/8.72	c Implications : 7565584
8.69/8.72	c Forced Restart : 0
8.69/8.72	c Polarity Change : 277
8.69/8.72	c Learned clasues  : 9136 out of 68768
8.69/8.72	c Learned literals : 472138 out of 3366328
8.69/8.72	c Number of first UIP : 28154 out of 68768
8.69/8.72	c Number of simplify : 4
8.69/8.72	c Number of continuous distill : 727
8.69/8.72	c Average depth of OTS : 37
8.69/8.72	c Average depth of additional conflict : 43
8.69/8.72	c Saved conflict clasues : 475
8.69/8.72	c Saved conflict literals : 6774
8.69/8.72	c Additional conflict clauses : 1503
8.69/8.72	c Additional conflict literals : 67279
8.69/8.72	c Additional conflict analysis : 3447
8.69/8.72	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-1553343-1238713807/watcher-1553343-1238713807 -o /tmp/evaluation-result-1553343-1238713807/solver-1553343-1238713807 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1553343-1238713807.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: 1.00 1.00 1.00 3/80 16497
/proc/meminfo: memFree=1510708/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=2412 CPUtime=0
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 334 0 0 0 0 0 0 0 20 0 1 120000 1144044394 2469888 319 1992294400 134512640 135224549 4294956224 18446744073709551615 134632646 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 603 319 70 173 0 428 0

[startup+0.072025 s]
/proc/loadavg: 1.00 1.00 1.00 3/80 16497
/proc/meminfo: memFree=1510708/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=5836 CPUtime=0.06
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 1268 0 0 0 6 0 0 0 20 0 1 120000 1144044394 5976064 1219 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 1459 1220 77 173 0 1284 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5836

[startup+0.100965 s]
/proc/loadavg: 1.00 1.00 1.00 3/80 16497
/proc/meminfo: memFree=1510708/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=7024 CPUtime=0.09
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 1580 0 0 0 8 1 0 0 20 0 1 120000 1144044394 7192576 1531 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 1756 1532 77 173 0 1581 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7024

[startup+0.301978 s]
/proc/loadavg: 1.00 1.00 1.00 3/80 16497
/proc/meminfo: memFree=1510708/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=9220 CPUtime=0.29
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2139 0 0 0 28 1 0 0 22 0 1 120000 1144044394 9441280 2025 1992294400 134512640 135224549 4294956224 18446744073709551615 134595766 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2305 2025 93 173 0 2130 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9220

[startup+0.70202 s]
/proc/loadavg: 1.00 1.00 1.00 3/80 16497
/proc/meminfo: memFree=1510708/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=10012 CPUtime=0.69
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2355 0 0 0 68 1 0 0 25 0 1 120000 1144044394 10252288 2241 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2503 2241 93 173 0 2328 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10012

[startup+1.50111 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1501996/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=10408 CPUtime=1.49
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2434 0 0 0 148 1 0 0 25 0 1 120000 1144044394 10657792 2320 1992294400 134512640 135224549 4294956224 18446744073709551615 134587928 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2602 2320 93 173 0 2427 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10408

[startup+3.10127 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1501292/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=10956 CPUtime=3.09
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2587 0 0 0 308 1 0 0 25 0 1 120000 1144044394 11218944 2473 1992294400 134512640 135224549 4294956224 18446744073709551615 134632748 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2739 2473 93 173 0 2564 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10956

[startup+6.3016 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1500524/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=11748 CPUtime=6.29
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2780 0 0 0 628 1 0 0 25 0 1 120000 1144044394 12029952 2666 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2937 2666 93 173 0 2762 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11748

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

[startup+7.90176 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1500012/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=11880 CPUtime=7.89
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2825 0 0 0 788 1 0 0 25 0 1 120000 1144044394 12165120 2711 1992294400 134512640 135224549 4294956224 18446744073709551615 134595683 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2970 2711 93 173 0 2795 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 11880

[startup+8.3018 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1500012/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=11880 CPUtime=8.29
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2825 0 0 0 828 1 0 0 25 0 1 120000 1144044394 12165120 2711 1992294400 134512640 135224549 4294956224 18446744073709551615 134587841 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2970 2711 93 173 0 2795 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 11880

[startup+8.70185 s]
/proc/loadavg: 1.00 1.00 1.00 2/81 16498
/proc/meminfo: memFree=1500012/2055920 swapFree=4163588/4192956
[pid=16497] ppid=16495 vsize=11880 CPUtime=8.69
/proc/16497/stat : 16497 (CirCUs) R 16495 16497 16262 0 -1 4194304 2828 0 0 0 868 1 0 0 25 0 1 120000 1144044394 12165120 2713 1992294400 134512640 135224549 4294956224 18446744073709551615 134598791 0 0 4096 8192 0 0 0 17 1 0 0
/proc/16497/statm: 2970 2713 95 173 0 2795 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 11880

Child status: 0
Real time (s): 8.72103
CPU time (s): 8.71867
CPU user time (s): 8.69968
CPU system time (s): 0.018997
CPU usage (%): 99.973
Max. virtual memory (cumulated for all children) (KiB): 11880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.69968
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2829
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= 21

runsolver used 0.016997 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node90 at 2009-04-03 01:10:07
IDJOB=1553343
IDBENCH=70759
IDSOLVER=544
FILE ID=node90/1553343-1238713807
PBS_JOBID= 9085286
Free space on /tmp= 66532 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553343-1238713807/watcher-1553343-1238713807 -o /tmp/evaluation-result-1553343-1238713807/solver-1553343-1238713807 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1553343-1238713807.cnf -t 1200

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=172851126

node90.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1511188 kB
Buffers:         83608 kB
Cached:         365508 kB
SwapCached:      19132 kB
Active:         235276 kB
Inactive:       234404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1511188 kB
SwapTotal:     4192956 kB
SwapFree:      4163588 kB
Dirty:            1512 kB
Writeback:           0 kB
Mapped:          25744 kB
Slab:            59312 kB
Committed_AS:  2582888 kB
PageTables:       2668 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= 66532 MiB
End job on node90 at 2009-04-03 01:10:16