Trace number 1825038

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
SAT07 reference solver: picosat 535UNSAT 3.2845 3.28541

General information on the benchmark

Namecmu-bmc-barrel6.cnf
MD5SUMcc87f90bf08e13838e59f0f2639db121
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.82072
Satisfiable
(Un)Satisfiability was proved
Number of variables2306
Number of clauses8931
Sum of the clauses size24664
Maximum clause length217
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22629
Number of clauses of size 36048
Number of clauses of size 4252
Number of clauses of size 50
Number of clauses of size over 52

Solver Data 

3.20/3.28	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-1825038-1242472866/watcher-1825038-1242472866 -o /tmp/evaluation-result-1825038-1242472866/solver-1825038-1242472866 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1825038-1242472866.cnf 

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
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: 0.99 0.97 0.91 3/64 28468
/proc/meminfo: memFree=1771248/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=568 CPUtime=0
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 275320126 581632 55 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 142 55 40 102 0 37 0

[startup+0.0637399 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 28468
/proc/meminfo: memFree=1771248/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=964 CPUtime=0.05
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 178 0 0 0 2 3 0 0 18 0 1 0 275320126 987136 164 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 241 164 40 102 0 136 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 964

[startup+0.101742 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 28468
/proc/meminfo: memFree=1771248/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1104 CPUtime=0.09
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 216 0 0 0 6 3 0 0 18 0 1 0 275320126 1130496 200 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 276 200 48 102 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1104

[startup+0.301766 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 28468
/proc/meminfo: memFree=1771248/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1632 CPUtime=0.29
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 335 0 0 0 26 3 0 0 19 0 1 0 275320126 1671168 319 1992294400 134512640 134931368 4294956240 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 408 319 48 102 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1632

[startup+0.70181 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 28468
/proc/meminfo: memFree=1771248/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1896 CPUtime=0.69
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 398 0 0 0 65 4 0 0 23 0 1 0 275320126 1941504 382 1992294400 134512640 134931368 4294956240 18446744073709551615 134525892 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 474 382 48 102 0 369 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1896

[startup+1.5029 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 28469
/proc/meminfo: memFree=1769896/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1896 CPUtime=1.5
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 405 0 0 0 146 4 0 0 25 0 1 0 275320126 1941504 389 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 474 389 48 102 0 369 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1896

[startup+3.10108 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 28469
/proc/meminfo: memFree=1769768/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1896 CPUtime=3.09
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 406 0 0 0 305 4 0 0 25 0 1 0 275320126 1941504 390 1992294400 134512640 134931368 4294956240 18446744073709551615 134522890 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 474 390 48 102 0 369 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1896

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

[startup+3.2011 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 28469
/proc/meminfo: memFree=1769704/2055920 swapFree=4150900/4192956
[pid=28468] ppid=28466 vsize=1896 CPUtime=3.2
/proc/28468/stat : 28468 (picosat) R 28466 28468 28387 0 -1 4194304 406 0 0 0 316 4 0 0 25 0 1 0 275320126 1941504 390 1992294400 134512640 134931368 4294956240 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 0 0 0
/proc/28468/statm: 474 390 48 102 0 369 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 1896

Child status: 20
Real time (s): 3.28541
CPU time (s): 3.2845
CPU user time (s): 3.24251
CPU system time (s): 0.041993
CPU usage (%): 99.9723
Max. virtual memory (cumulated for all children) (KiB): 1896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.24251
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 408
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= 7

runsolver used 0.003999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node23 at 2009-05-16 13:21:06
IDJOB=1825038
IDBENCH=69564
IDSOLVER=666
FILE ID=node23/1825038-1242472866
PBS_JOBID= 9306811
Free space on /tmp= 66424 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-barrel6.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1825038-1242472866/watcher-1825038-1242472866 -o /tmp/evaluation-result-1825038-1242472866/solver-1825038-1242472866 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1825038-1242472866.cnf            

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

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=1055646583

node23.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		: 3000.238
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		: 3000.238
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:       1771736 kB
Buffers:         40716 kB
Cached:         138896 kB
SwapCached:      35880 kB
Active:          38068 kB
Inactive:       178996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1771736 kB
SwapTotal:     4192956 kB
SwapFree:      4150900 kB
Dirty:             608 kB
Writeback:           0 kB
Mapped:          14128 kB
Slab:            53092 kB
Committed_AS:   994708 kB
PageTables:       1388 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= 66424 MiB
End job on node23 at 2009-05-16 13:21:10