Trace number 1725414

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
HydraSAT 2009-03-22-BaseUNSAT 15.2727 15.2776

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
MD5SUMfc73c241ff6e8e1a49a6ff2500eb7905
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.131979
Satisfiable
(Un)Satisfiability was proved
Number of variables322
Number of clauses9322
Sum of the clauses size72335
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 379
Number of clauses of size 4136
Number of clauses of size 5421
Number of clauses of size over 58674

Solver Data 

15.18/15.27	
15.18/15.27	c decisions : 254364
15.18/15.27	c conflicts : 113427
15.18/15.27	c Memory limit 1620 MiB
15.18/15.27	c RANDOM SEED: 1246509036
15.18/15.27	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-1725414-1240704487/watcher-1725414-1240704487 -o /tmp/evaluation-result-1725414-1240704487/solver-1725414-1240704487 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat HOME/instance-1725414-1240704487.cnf -rs 1246509036 -co memory_limit 1800 

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: 1.63 1.20 1.07 3/64 20863
/proc/meminfo: memFree=1726128/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=1768 CPUtime=0
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 210 0 0 0 0 0 0 0 20 0 1 0 98481655 1810432 194 1992294400 134512640 135997824 4294956160 18446744073709551615 135431166 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 442 195 151 362 0 77 0

[startup+0.017088 s]
/proc/loadavg: 1.63 1.20 1.07 3/64 20863
/proc/meminfo: memFree=1726128/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=2032 CPUtime=0.01
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 285 0 0 0 1 0 0 0 20 0 1 0 98481655 2080768 269 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 508 269 151 362 0 143 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2032

[startup+0.101096 s]
/proc/loadavg: 1.63 1.20 1.07 3/64 20863
/proc/meminfo: memFree=1726128/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=2876 CPUtime=0.09
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 509 0 0 0 9 0 0 0 20 0 1 0 98481655 2945024 493 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 719 493 159 362 0 354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2876

[startup+0.301115 s]
/proc/loadavg: 1.63 1.20 1.07 3/64 20863
/proc/meminfo: memFree=1726128/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=3272 CPUtime=0.29
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 628 0 0 0 29 0 0 0 22 0 1 0 98481655 3350528 611 1992294400 134512640 135997824 4294956160 18446744073709551615 134590411 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 818 611 174 362 0 453 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3272

[startup+0.701155 s]
/proc/loadavg: 1.63 1.20 1.07 3/64 20863
/proc/meminfo: memFree=1726128/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=3804 CPUtime=0.69
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 754 0 0 0 69 0 0 0 25 0 1 0 98481655 3895296 737 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 951 737 174 362 0 586 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3804

[startup+1.50124 s]
/proc/loadavg: 1.63 1.20 1.07 2/65 20864
/proc/meminfo: memFree=1723240/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=5204 CPUtime=1.49
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 1097 0 0 0 149 0 0 0 25 0 1 0 98481655 5328896 1080 1992294400 134512640 135997824 4294956160 18446744073709551615 134757699 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 1301 1080 174 362 0 936 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5204

[startup+3.1014 s]
/proc/loadavg: 1.63 1.20 1.07 2/65 20864
/proc/meminfo: memFree=1721064/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=8200 CPUtime=3.09
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 1728 0 0 0 309 0 0 0 25 0 1 0 98481655 8396800 1711 1992294400 134512640 135997824 4294956160 18446744073709551615 134756085 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 2050 1711 174 362 0 1685 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8200

[startup+6.30172 s]
/proc/loadavg: 1.58 1.20 1.07 2/65 20864
/proc/meminfo: memFree=1717104/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=11784 CPUtime=6.29
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 2571 0 0 0 628 1 0 0 25 0 1 0 98481655 12066816 2521 1992294400 134512640 135997824 4294956160 18446744073709551615 134758023 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 2946 2521 174 362 0 2581 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11784

[startup+12.7014 s]
/proc/loadavg: 1.54 1.20 1.07 2/65 20864
/proc/meminfo: memFree=1712816/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=16136 CPUtime=12.68
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 3634 0 0 0 1267 1 0 0 25 0 1 0 98481655 16523264 3481 1992294400 134512640 135997824 4294956160 18446744073709551615 134590316 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 4034 3481 174 362 0 3669 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 16136

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

[startup+14.3055 s]
/proc/loadavg: 1.49 1.19 1.07 2/65 20864
/proc/meminfo: memFree=1711600/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=17336 CPUtime=14.29
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 3868 0 0 0 1428 1 0 0 25 0 1 0 98481655 17752064 3715 1992294400 134512640 135997824 4294956160 18446744073709551615 134757727 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 4334 3715 174 362 0 3969 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 17336

[startup+14.7016 s]
/proc/loadavg: 1.49 1.19 1.07 2/65 20864
/proc/meminfo: memFree=1711600/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=17336 CPUtime=14.68
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 3879 0 0 0 1467 1 0 0 25 0 1 0 98481655 17752064 3726 1992294400 134512640 135997824 4294956160 18446744073709551615 134757664 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 4334 3726 174 362 0 3969 0
Current children cumulated CPU time (s) 14.68
Current children cumulated vsize (KiB) 17336

[startup+15.1016 s]
/proc/loadavg: 1.49 1.19 1.07 2/65 20864
/proc/meminfo: memFree=1711600/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=17336 CPUtime=15.08
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 3912 0 0 0 1507 1 0 0 25 0 1 0 98481655 17752064 3759 1992294400 134512640 135997824 4294956160 18446744073709551615 134757372 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 4334 3759 174 362 0 3969 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 17336

[startup+15.2016 s]
/proc/loadavg: 1.49 1.19 1.07 2/65 20864
/proc/meminfo: memFree=1711600/2055920 swapFree=4180920/4192956
[pid=20863] ppid=20861 vsize=17468 CPUtime=15.18
/proc/20863/stat : 20863 (hydrasat) R 20861 20863 20316 0 -1 4194304 3930 0 0 0 1517 1 0 0 25 0 1 0 98481655 17887232 3777 1992294400 134512640 135997824 4294956160 18446744073709551615 134756083 0 0 4096 1 0 0 0 17 1 0 0
/proc/20863/statm: 4367 3777 174 362 0 4002 0
Current children cumulated CPU time (s) 15.18
Current children cumulated vsize (KiB) 17468

Child status: 20
Real time (s): 15.2776
CPU time (s): 15.2727
CPU user time (s): 15.2527
CPU system time (s): 0.019996
CPU usage (%): 99.9679
Max. virtual memory (cumulated for all children) (KiB): 17468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.2527
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3941
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= 37

runsolver used 0.019996 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-26 02:08:07
IDJOB=1725414
IDBENCH=24582
IDSOLVER=520
FILE ID=node27/1725414-1240704487
PBS_JOBID= 9186752
Free space on /tmp= 66196 MiB

SOLVER NAME= HydraSAT 2009-03-22-Base
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
COMMAND LINE= DIR/hydrasat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725414-1240704487/watcher-1725414-1240704487 -o /tmp/evaluation-result-1725414-1240704487/solver-1725414-1240704487 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat HOME/instance-1725414-1240704487.cnf -rs 1246509036 -co memory_limit 1800

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

MD5SUM BENCH= fc73c241ff6e8e1a49a6ff2500eb7905
RANDOM SEED=1246509036

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1726544 kB
Buffers:         42892 kB
Cached:         220520 kB
SwapCached:       4848 kB
Active:         128928 kB
Inactive:       142400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1726544 kB
SwapTotal:     4192956 kB
SwapFree:      4180920 kB
Dirty:            1868 kB
Writeback:           0 kB
Mapped:          14060 kB
Slab:            43936 kB
Committed_AS:   337816 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66196 MiB
End job on node27 at 2009-04-26 02:08:23