Trace number 1723764

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 1.83772 1.83868

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 

1.79/1.83	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-1723764-1240688489/watcher-1723764-1240688489 -o /tmp/evaluation-result-1723764-1240688489/solver-1723764-1240688489 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1723764-1240688489.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: 1.37 1.08 1.15 3/64 12548
/proc/meminfo: memFree=1740820/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=568 CPUtime=0
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 73 0 0 0 0 0 0 0 20 0 1 0 96878021 581632 59 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 142 59 40 102 0 37 0

[startup+0.0389731 s]
/proc/loadavg: 1.37 1.08 1.15 3/64 12548
/proc/meminfo: memFree=1740820/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=856 CPUtime=0.02
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 148 0 0 0 1 1 0 0 20 0 1 0 96878021 876544 134 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 214 134 40 102 0 109 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 856

[startup+0.101979 s]
/proc/loadavg: 1.37 1.08 1.15 3/64 12548
/proc/meminfo: memFree=1740820/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=1344 CPUtime=0.09
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 245 0 0 0 4 5 0 0 20 0 1 0 96878021 1376256 231 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 336 231 40 102 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1344

[startup+0.301999 s]
/proc/loadavg: 1.37 1.08 1.15 3/64 12548
/proc/meminfo: memFree=1740820/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=2468 CPUtime=0.29
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 540 0 0 0 14 15 0 0 22 0 1 0 96878021 2527232 526 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 617 526 40 102 0 512 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2468

[startup+0.701041 s]
/proc/loadavg: 1.37 1.08 1.15 3/64 12548
/proc/meminfo: memFree=1740820/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=4752 CPUtime=0.69
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 975 0 0 0 45 24 0 0 25 0 1 0 96878021 4866048 942 1992294400 134512640 134931368 4294956224 18446744073709551615 134524072 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 1188 942 42 102 0 1083 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4752

[startup+1.50112 s]
/proc/loadavg: 1.34 1.08 1.15 2/65 12549
/proc/meminfo: memFree=1737100/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=5156 CPUtime=1.49
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 1084 0 0 0 125 24 0 0 25 0 1 0 96878021 5279744 1049 1992294400 134512640 134931368 4294956224 18446744073709551615 134529919 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 1289 1049 48 102 0 1184 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5156

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

[startup+1.70114 s]
/proc/loadavg: 1.34 1.08 1.15 2/65 12549
/proc/meminfo: memFree=1737100/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=5156 CPUtime=1.69
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 1084 0 0 0 145 24 0 0 25 0 1 0 96878021 5279744 1049 1992294400 134512640 134931368 4294956224 18446744073709551615 134522932 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 1289 1049 48 102 0 1184 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5156

[startup+1.80115 s]
/proc/loadavg: 1.34 1.08 1.15 2/65 12549
/proc/meminfo: memFree=1737100/2055920 swapFree=4192952/4192956
[pid=12548] ppid=12546 vsize=5156 CPUtime=1.79
/proc/12548/stat : 12548 (picosat) R 12546 12548 12050 0 -1 4194304 1084 0 0 0 155 24 0 0 25 0 1 0 96878021 5279744 1049 1992294400 134512640 134931368 4294956224 18446744073709551615 134525616 0 0 4096 0 0 0 0 17 1 0 0
/proc/12548/statm: 1289 1049 48 102 0 1184 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 5156

Child status: 20
Real time (s): 1.83868
CPU time (s): 1.83772
CPU user time (s): 1.58876
CPU system time (s): 0.248962
CPU usage (%): 99.9477
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.58876
system time used= 0.248962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1086
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= 3

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node90 at 2009-04-25 21:41:30
IDJOB=1723764
IDBENCH=71734
IDSOLVER=563
FILE ID=node90/1723764-1240688489
PBS_JOBID= 9186682
Free space on /tmp= 66524 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723764-1240688489/watcher-1723764-1240688489 -o /tmp/evaluation-result-1723764-1240688489/solver-1723764-1240688489 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1723764-1240688489.cnf            

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=559267773

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		: 3000.238
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1741236 kB
Buffers:         30988 kB
Cached:         198168 kB
SwapCached:          4 kB
Active:          57724 kB
Inactive:       188664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1741236 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            1792 kB
Writeback:           0 kB
Mapped:          23976 kB
Slab:            54280 kB
Committed_AS:   238728 kB
PageTables:       1428 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= 66524 MiB
End job on node90 at 2009-04-25 21:41:32