Trace number 1719892

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 8.20475 8.20531

General information on the benchmark

Namehoons-vbmc-lucky7.cnf
MD5SUMe05028f569e580a3335aeab2d092cf1f
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14183
Satisfiable
(Un)Satisfiability was proved
Number of variables8503
Number of clauses25116
Sum of the clauses size58576
Maximum clause length3
Minimum clause length1
Number of clauses of size 121
Number of clauses of size 216730
Number of clauses of size 38365
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

8.19/8.20	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-1719892-1240650403/watcher-1719892-1240650403 -o /tmp/evaluation-result-1719892-1240650403/solver-1719892-1240650403 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1719892-1240650403.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 3/64 12891
/proc/meminfo: memFree=1880320/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=1536 CPUtime=0
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 242 0 0 0 0 0 0 0 18 0 1 0 93072954 1572864 228 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 384 228 40 102 0 279 0

[startup+0.0103311 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12891
/proc/meminfo: memFree=1880320/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=1536 CPUtime=0
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 242 0 0 0 0 0 0 0 18 0 1 0 93072954 1572864 228 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 384 228 40 102 0 279 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1536

[startup+0.101337 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12891
/proc/meminfo: memFree=1880320/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=1800 CPUtime=0.09
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 296 0 0 0 4 5 0 0 18 0 1 0 93072954 1843200 282 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 450 282 40 102 0 345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1800

[startup+0.301351 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12891
/proc/meminfo: memFree=1880320/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2544 CPUtime=0.29
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 442 0 0 0 19 10 0 0 19 0 1 0 93072954 2605056 421 1992294400 134512640 134931368 4294956240 18446744073709551615 134523361 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 636 421 42 102 0 531 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2544

[startup+0.70138 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12891
/proc/meminfo: memFree=1880320/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2552 CPUtime=0.69
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 462 0 0 0 59 10 0 0 24 0 1 0 93072954 2613248 439 1992294400 134512640 134931368 4294956240 18446744073709551615 134529686 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 638 439 48 102 0 533 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2552

[startup+1.50144 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878712/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2552 CPUtime=1.49
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 471 0 0 0 139 10 0 0 25 0 1 0 93072954 2613248 448 1992294400 134512640 134931368 4294956240 18446744073709551615 134529868 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 638 448 48 102 0 533 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2552

[startup+3.10156 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878520/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2672 CPUtime=3.09
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 499 0 0 0 299 10 0 0 25 0 1 0 93072954 2736128 476 1992294400 134512640 134931368 4294956240 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 668 476 48 102 0 563 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2672

[startup+6.30179 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878264/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2804 CPUtime=6.29
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 529 0 0 0 619 10 0 0 25 0 1 0 93072954 2871296 506 1992294400 134512640 134931368 4294956240 18446744073709551615 134529880 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 701 506 48 102 0 596 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2804

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

[startup+7.10185 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878264/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2804 CPUtime=7.09
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 530 0 0 0 699 10 0 0 25 0 1 0 93072954 2871296 507 1992294400 134512640 134931368 4294956240 18446744073709551615 134524075 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 701 507 48 102 0 596 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 2804

[startup+7.90191 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878264/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2804 CPUtime=7.89
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 532 0 0 0 779 10 0 0 25 0 1 0 93072954 2871296 509 1992294400 134512640 134931368 4294956240 18446744073709551615 134522787 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 701 509 48 102 0 596 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 2804

[startup+8.10192 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878264/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2804 CPUtime=8.09
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 532 0 0 0 799 10 0 0 25 0 1 0 93072954 2871296 509 1992294400 134512640 134931368 4294956240 18446744073709551615 134525554 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 701 509 48 102 0 596 0
Current children cumulated CPU time (s) 8.09
Current children cumulated vsize (KiB) 2804

[startup+8.20193 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12892
/proc/meminfo: memFree=1878264/2055920 swapFree=4191900/4192956
[pid=12891] ppid=12889 vsize=2804 CPUtime=8.19
/proc/12891/stat : 12891 (picosat) R 12889 12891 12763 0 -1 4194304 533 0 0 0 809 10 0 0 25 0 1 0 93072954 2871296 510 1992294400 134512640 134931368 4294956240 18446744073709551615 134521602 0 0 4096 0 0 0 0 17 1 0 0
/proc/12891/statm: 701 510 48 102 0 596 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 2804

Child status: 20
Real time (s): 8.20531
CPU time (s): 8.20475
CPU user time (s): 8.09977
CPU system time (s): 0.104984
CPU usage (%): 99.9931
Max. virtual memory (cumulated for all children) (KiB): 2804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.09977
system time used= 0.104984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 535
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= 15

runsolver used 0.004999 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node34 at 2009-04-25 11:06:43
IDJOB=1719892
IDBENCH=69576
IDSOLVER=563
FILE ID=node34/1719892-1240650403
PBS_JOBID= 9186476
Free space on /tmp= 66368 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT_RACE08/cnf/hoons-vbmc-lucky7.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719892-1240650403/watcher-1719892-1240650403 -o /tmp/evaluation-result-1719892-1240650403/solver-1719892-1240650403 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1719892-1240650403.cnf            

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=308509429

node34.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		: 3000.214
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		: 3000.214
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:       1880736 kB
Buffers:          4512 kB
Cached:         104176 kB
SwapCached:        384 kB
Active:          28264 kB
Inactive:        93784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1880736 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:             836 kB
Writeback:           0 kB
Mapped:          21792 kB
Slab:            39136 kB
Committed_AS:   315848 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= 66368 MiB
End job on node34 at 2009-04-25 11:06:51