Trace number 1723753

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 1.84972 1.85087

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.39/0.47	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.39/0.47	c Eliminate time :       0.39 
1.79/1.85	c CNF read time  :       0.07 
1.79/1.85	c CNF solve time :       1.79 
1.79/1.85	c Memory usage :    14.6094 MB
1.79/1.85	c Restart : 20
1.79/1.85	c Decisions : random(931), heuristic(54354), history(0/0)
1.79/1.85	c Implications : 1536350
1.79/1.85	c Forced Restart : 0
1.79/1.85	c Polarity Change : 47
1.79/1.85	c Learned clasues  : 4018 out of 19286
1.79/1.85	c Learned literals : 64823 out of 361775
1.79/1.85	c Number of first UIP : 3841 out of 19286
1.79/1.85	c Number of simplify : 1
1.79/1.85	c Number of continuous distill : 1352
1.79/1.85	c Average depth of OTS : 9
1.79/1.85	c Average depth of additional conflict : 24
1.79/1.85	c Saved conflict clasues : 815
1.79/1.85	c Saved conflict literals : 13918
1.79/1.85	c Additional conflict clauses : 552
1.79/1.85	c Additional conflict literals : 9431
1.79/1.85	c Additional conflict analysis : 1450
1.79/1.85	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-1723753-1240688442/watcher-1723753-1240688442 -o /tmp/evaluation-result-1723753-1240688442/solver-1723753-1240688442 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1723753-1240688442.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 0.97 0.99 3/64 21010
/proc/meminfo: memFree=1723184/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=3264 CPUtime=0
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 466 0 0 0 0 0 0 0 18 0 1 120000 96872124 3342336 451 1992294400 134512640 135224549 4294956208 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 816 453 70 173 0 641 0

[startup+0.0757149 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21010
/proc/meminfo: memFree=1723184/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=7484 CPUtime=0.06
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 1621 0 0 0 6 0 0 0 18 0 1 120000 96872124 7663616 1573 1992294400 134512640 135224549 4294956208 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 1871 1574 70 173 0 1696 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7484

[startup+0.101716 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21010
/proc/meminfo: memFree=1723184/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=8396 CPUtime=0.09
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 1883 0 0 0 9 0 0 0 18 0 1 120000 96872124 8597504 1769 1992294400 134512640 135224549 4294956208 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 2099 1769 77 173 0 1924 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8396

[startup+0.301736 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21010
/proc/meminfo: memFree=1723184/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=13504 CPUtime=0.29
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 3275 0 0 0 28 1 0 0 19 0 1 120000 96872124 13828096 3032 1992294400 134512640 135224549 4294956208 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 3376 3032 77 173 0 3201 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13504

[startup+0.701777 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 21010
/proc/meminfo: memFree=1723184/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=14296 CPUtime=0.69
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 3566 0 0 0 68 1 0 0 22 0 1 120000 96872124 14639104 3229 1992294400 134512640 135224549 4294956208 18446744073709551615 134595336 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 3574 3229 93 173 0 3399 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14296

[startup+1.50186 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 21011
/proc/meminfo: memFree=1710120/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=14956 CPUtime=1.49
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 3724 0 0 0 148 1 0 0 25 0 1 120000 96872124 15314944 3387 1992294400 134512640 135224549 4294956208 18446744073709551615 134622602 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 3739 3387 93 173 0 3564 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14956

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

[startup+1.70188 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 21011
/proc/meminfo: memFree=1710120/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=14956 CPUtime=1.69
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 3733 0 0 0 168 1 0 0 25 0 1 120000 96872124 15314944 3396 1992294400 134512640 135224549 4294956208 18446744073709551615 134618659 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 3739 3396 93 173 0 3564 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 14956

[startup+1.80189 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 21011
/proc/meminfo: memFree=1710120/2055920 swapFree=4180816/4192956
[pid=21010] ppid=21008 vsize=14956 CPUtime=1.79
/proc/21010/stat : 21010 (CirCUs) R 21008 21010 20435 0 -1 4194304 3735 0 0 0 178 1 0 0 25 0 1 120000 96872124 15314944 3398 1992294400 134512640 135224549 4294956208 18446744073709551615 134595278 0 0 4096 8192 0 0 0 17 1 0 0
/proc/21010/statm: 3739 3398 93 173 0 3564 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 14956

Child status: 0
Real time (s): 1.85087
CPU time (s): 1.84972
CPU user time (s): 1.83072
CPU system time (s): 0.018997
CPU usage (%): 99.9379
Max. virtual memory (cumulated for all children) (KiB): 14956

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.83072
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= 3739
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= 5

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-25 21:40:42
IDJOB=1723753
IDBENCH=71734
IDSOLVER=544
FILE ID=node45/1723753-1240688442
PBS_JOBID= 9186643
Free space on /tmp= 66280 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723753-1240688442/watcher-1723753-1240688442 -o /tmp/evaluation-result-1723753-1240688442/solver-1723753-1240688442 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1723753-1240688442.cnf -t 1200

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=596870575

node45.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:       1723664 kB
Buffers:         28972 kB
Cached:         241940 kB
SwapCached:       6324 kB
Active:         124672 kB
Inactive:       155052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1723664 kB
SwapTotal:     4192956 kB
SwapFree:      4180816 kB
Dirty:            2140 kB
Writeback:           0 kB
Mapped:          14068 kB
Slab:            38576 kB
Committed_AS:   377976 kB
PageTables:       1384 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= 66280 MiB
End job on node45 at 2009-04-25 21:40:44