Trace number 1719580

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 3.50647 3.5079

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 benchmark0.108983
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 

3.49/3.50	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-1719580-1240647594/watcher-1719580-1240647594 -o /tmp/evaluation-result-1719580-1240647594/solver-1719580-1240647594 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1719580-1240647594.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 1.05 3/64 22866
/proc/meminfo: memFree=1895416/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=568 CPUtime=0
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 92787087 581632 55 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 142 55 40 102 0 37 0

[startup+0.089007 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 22866
/proc/meminfo: memFree=1895416/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1104 CPUtime=0.08
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 208 0 0 0 4 4 0 0 18 0 1 0 92787087 1130496 192 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 276 192 48 102 0 171 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1104

[startup+0.101007 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 22866
/proc/meminfo: memFree=1895416/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1104 CPUtime=0.09
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 213 0 0 0 5 4 0 0 18 0 1 0 92787087 1130496 197 1992294400 134512640 134931368 4294956224 18446744073709551615 134530859 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 276 197 48 102 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1104

[startup+0.301025 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 22866
/proc/meminfo: memFree=1895416/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1500 CPUtime=0.29
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 319 0 0 0 25 4 0 0 19 0 1 0 92787087 1536000 303 1992294400 134512640 134931368 4294956224 18446744073709551615 134530799 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 375 303 48 102 0 270 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1500

[startup+0.701062 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 22866
/proc/meminfo: memFree=1895416/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1896 CPUtime=0.69
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 398 0 0 0 65 4 0 0 23 0 1 0 92787087 1941504 382 1992294400 134512640 134931368 4294956224 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 474 382 48 102 0 369 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1896

[startup+1.50114 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 22867
/proc/meminfo: memFree=1894128/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1896 CPUtime=1.49
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 405 0 0 0 145 4 0 0 25 0 1 0 92787087 1941504 389 1992294400 134512640 134931368 4294956224 18446744073709551615 134531136 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 474 389 48 102 0 369 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1896

[startup+3.10128 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 22867
/proc/meminfo: memFree=1893936/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1896 CPUtime=3.09
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 406 0 0 0 305 4 0 0 25 0 1 0 92787087 1941504 390 1992294400 134512640 134931368 4294956224 18446744073709551615 134524122 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/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+3.50132 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 22867
/proc/meminfo: memFree=1893872/2055920 swapFree=4180436/4192956
[pid=22866] ppid=22864 vsize=1896 CPUtime=3.49
/proc/22866/stat : 22866 (picosat) R 22864 22866 22156 0 -1 4194304 406 0 0 0 345 4 0 0 25 0 1 0 92787087 1941504 390 1992294400 134512640 134931368 4294956224 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/22866/statm: 474 390 48 102 0 369 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 1896

Child status: 20
Real time (s): 3.5079
CPU time (s): 3.50647
CPU user time (s): 3.46147
CPU system time (s): 0.044993
CPU usage (%): 99.959
Max. virtual memory (cumulated for all children) (KiB): 1896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.46147
system time used= 0.044993
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= 10

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node48 at 2009-04-25 10:19:54
IDJOB=1719580
IDBENCH=69564
IDSOLVER=563
FILE ID=node48/1719580-1240647594
PBS_JOBID= 9186421
Free space on /tmp= 66308 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-1719580-1240647594/watcher-1719580-1240647594 -o /tmp/evaluation-result-1719580-1240647594/solver-1719580-1240647594 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1719580-1240647594.cnf            

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

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=586945931

node48.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		: 3000.209
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		: 3000.209
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:       1895896 kB
Buffers:          3640 kB
Cached:          95836 kB
SwapCached:       5652 kB
Active:          59452 kB
Inactive:        47268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1895896 kB
SwapTotal:     4192956 kB
SwapFree:      4180436 kB
Dirty:             612 kB
Writeback:           0 kB
Mapped:          12612 kB
Slab:            39304 kB
Committed_AS:   401936 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= 66308 MiB
End job on node48 at 2009-04-25 10:19:57