Trace number 1718807

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
picosat 913UNSAT 0.217966 0.218254

General information on the benchmark

Nameindustrial/babic/xinetd/
xinetd_vc56703.cnf
MD5SUM09053ffc48c8fbc3352a0ce4d89c2bbb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.217966
Satisfiable
(Un)Satisfiability was proved
Number of variables110923
Number of clauses286428
Sum of the clauses size694958
Maximum clause length3
Minimum clause length1
Number of clauses of size 113085
Number of clauses of size 2138156
Number of clauses of size 3135187
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1718807-1240640192.cnf
0.00/0.00	c parsed header 'p cnf 110923 286428'
0.09/0.19	c initialized 110923 variables
0.09/0.19	c found 286428 non trivial clauses
0.09/0.19	c
0.09/0.19	c random number generator seed 0
0.09/0.19	c 
0.09/0.19	c  seconds     variables   original    learned     agility
0.09/0.19	c         level        used      conflicts    limit          MB
0.09/0.19	c 
0.09/0.19	c 0   0.2   0.0 87169  21.4 135e3     1     0     0   0.0  13.1 
0.19/0.21	c 
0.19/0.21	c  seconds     variables   original    learned     agility
0.19/0.21	c         level        used      conflicts    limit          MB
0.19/0.21	c 
0.19/0.21	s UNSATISFIABLE
0.19/0.21	c
0.19/0.21	c 0 iterations
0.19/0.21	c 0 restarts
0.19/0.21	c 0 failed literals
0.19/0.21	c 1 conflicts
0.19/0.21	c 0 decisions
0.19/0.21	c 23754 fixed variables
0.19/0.21	c 10669 learned literals
0.19/0.21	c 0.0% deleted literals
0.19/0.21	c 23754 propagations
0.19/0.21	c 21.4% variables used
0.19/0.21	c 0.2 seconds in library
0.19/0.21	c 0.1 megaprops/second
0.19/0.21	c 0 simplifications
0.19/0.21	c 0 reductions
0.19/0.21	c 0.0 MB recycled
0.19/0.21	c 13.1 MB maximally allocated
0.19/0.21	c 0.2 seconds total run time

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-1718807-1240640192/watcher-1718807-1240640192 -o /tmp/evaluation-result-1718807-1240640192/solver-1718807-1240640192 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1718807-1240640192.cnf 

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 3/65 4407
/proc/meminfo: memFree=856032/2055920 swapFree=4192956/4192956
[pid=4407] ppid=4405 vsize=7336 CPUtime=0
/proc/4407/stat : 4407 (picosat) R 4405 4407 4168 0 -1 4194304 624 0 0 0 0 0 0 0 20 0 1 0 92048560 7512064 609 1992294400 134512640 135137933 4294956224 18446744073709551615 134532201 0 0 4096 0 0 0 0 17 1 0 0
/proc/4407/statm: 1834 614 53 152 0 1680 0

[startup+0.0678599 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 4407
/proc/meminfo: memFree=856032/2055920 swapFree=4192956/4192956
[pid=4407] ppid=4405 vsize=10152 CPUtime=0.05
/proc/4407/stat : 4407 (picosat) R 4405 4407 4168 0 -1 4194304 2391 0 0 0 5 0 0 0 20 0 1 0 92048560 10395648 2377 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/4407/statm: 2538 2377 56 152 0 2384 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 10152

[startup+0.101865 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 4407
/proc/meminfo: memFree=856032/2055920 swapFree=4192956/4192956
[pid=4407] ppid=4405 vsize=11728 CPUtime=0.09
/proc/4407/stat : 4407 (picosat) R 4405 4407 4168 0 -1 4194304 2766 0 0 0 8 1 0 0 20 0 1 0 92048560 12009472 2751 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/4407/statm: 2932 2751 56 152 0 2778 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11728

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

[startup+0.201884 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 4407
/proc/meminfo: memFree=856032/2055920 swapFree=4192956/4192956
[pid=4407] ppid=4405 vsize=15040 CPUtime=0.19
/proc/4407/stat : 4407 (picosat) R 4405 4407 4168 0 -1 4194304 3796 0 0 0 17 2 0 0 21 0 1 0 92048560 15400960 3633 1992294400 134512640 135137933 4294956224 18446744073709551615 134658841 0 0 4096 0 0 0 0 17 1 0 0
/proc/4407/statm: 3760 3633 68 152 0 3606 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 15040

Child status: 20
Real time (s): 0.218254
CPU time (s): 0.217966
CPU user time (s): 0.19297
CPU system time (s): 0.024996
CPU usage (%): 99.868
Max. virtual memory (cumulated for all children) (KiB): 15040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19297
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3798
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= 1

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node82 at 2009-04-25 08:16:32
IDJOB=1718807
IDBENCH=20516
IDSOLVER=506
FILE ID=node82/1718807-1240640192
PBS_JOBID= 9186433
Free space on /tmp= 66272 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT07/industrial/babic/xinetd/xinetd_vc56703.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1718807-1240640192/watcher-1718807-1240640192 -o /tmp/evaluation-result-1718807-1240640192/solver-1718807-1240640192 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1718807-1240640192.cnf

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

MD5SUM BENCH= 09053ffc48c8fbc3352a0ce4d89c2bbb
RANDOM SEED=754086354

node82.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		: 3000.259
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		: 3000.259
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:        856448 kB
Buffers:         90112 kB
Cached:        1005912 kB
SwapCached:          0 kB
Active:         385336 kB
Inactive:       725292 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        856448 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5680 kB
Writeback:           0 kB
Mapped:          24324 kB
Slab:            74752 kB
Committed_AS:   215700 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66272 MiB
End job on node82 at 2009-04-25 08:16:33