Trace number 1805748

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
ReVivAl 0.23 + SatElite 2009-03-18UNSAT 0.315951 0.315789

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.075988
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c SatElite...
0.00/0.00	c Parsing...
0.00/0.02	c ==============================================================================
0.00/0.02	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.02	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.02	c ==============================================================================
0.00/0.02	c |         0 |   12720    50717 |    3815       0        0     nan |  0.000 % |
0.09/0.19	c |         0 |    2103     8409 |      --       0       --      -- |     --   | -10617/-42303
0.09/0.19	c ==============================================================================
0.09/0.19	c Result  :   #vars: 1079   #clauses: 2103   #literals: 8409
0.09/0.19	c CPU time:   0.181972 s
0.09/0.19	c ==============================================================================
0.09/0.19	c SatElite is done !
0.09/0.19	c revival is preprocessing the formula...Proved UNSATISFIABLE by ReVivAl !!
0.18/0.31	(polynomial instance)
0.18/0.31	done !
0.18/0.31	c Calling MINISAT
0.18/0.31	This is MiniSat 2.0 beta
0.18/0.31	WARNING: for repeatability, setting FPU to use double precision
0.18/0.31	============================[ Problem Statistics ]=============================
0.18/0.31	|                                                                             |
0.18/0.31	|  Number of variables:  1                                                    |
0.18/0.31	|  Number of clauses:    2                                                    |
0.18/0.31	|  Parsing time:         0.00         s                                       |
0.18/0.31	Solved by unit propagation
0.18/0.31	UNSATISFIABLE
0.18/0.31	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-1805748-1242142211/watcher-1805748-1242142211 -o /tmp/evaluation-result-1805748-1242142211/solver-1805748-1242142211 -C 1200 -W 1800 -M 1800 HOME/run.sh HOME/instance-1805748-1242142211.cnf HOME 

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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.15 0.83 3/64 16171
/proc/meminfo: memFree=742712/2055920 swapFree=4181160/4192956
[pid=16171] ppid=16169 vsize=5360 CPUtime=0
/proc/16171/stat : 16171 (run.sh) R 16169 16171 16134 0 -1 4194304 269 0 0 0 0 0 0 0 18 0 1 0 242253737 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 254195329695 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/16171/statm: 1340 237 196 169 0 51 0
[pid=16172] ppid=16171 vsize=1552 CPUtime=0
/proc/16172/stat : 16172 (SatElite) R 16171 16171 16134 0 -1 4194304 288 0 0 0 0 0 0 0 18 0 1 0 242253737 1589248 271 1992294400 134512640 135031949 4294956224 18446744073709551615 134544701 0 0 4096 3 0 0 0 17 0 0 0
/proc/16172/statm: 388 275 51 126 0 259 0

[startup+0.0327249 s]
/proc/loadavg: 0.00 0.15 0.83 3/64 16171
/proc/meminfo: memFree=742712/2055920 swapFree=4181160/4192956
[pid=16171] ppid=16169 vsize=5360 CPUtime=0
/proc/16171/stat : 16171 (run.sh) S 16169 16171 16134 0 -1 4194304 288 0 0 0 0 0 0 0 18 0 1 0 242253737 5488640 238 1992294400 4194304 4889804 548682068784 18446744073709551615 254195327812 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16171/statm: 1340 238 197 169 0 51 0
[pid=16172] ppid=16171 vsize=3108 CPUtime=0.02
/proc/16172/stat : 16172 (SatElite) R 16171 16171 16134 0 -1 4194304 682 0 0 0 2 0 0 0 18 0 1 0 242253737 3182592 655 1992294400 134512640 135031949 4294956224 18446744073709551615 134529044 0 0 4096 3 0 0 0 17 0 0 0
/proc/16172/statm: 777 655 67 126 0 648 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8468

[startup+0.101729 s]
/proc/loadavg: 0.00 0.15 0.83 3/64 16171
/proc/meminfo: memFree=742712/2055920 swapFree=4181160/4192956
[pid=16171] ppid=16169 vsize=5360 CPUtime=0
/proc/16171/stat : 16171 (run.sh) S 16169 16171 16134 0 -1 4194304 288 0 0 0 0 0 0 0 18 0 1 0 242253737 5488640 238 1992294400 4194304 4889804 548682068784 18446744073709551615 254195327812 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16171/statm: 1340 238 197 169 0 51 0
[pid=16172] ppid=16171 vsize=3228 CPUtime=0.09
/proc/16172/stat : 16172 (SatElite) R 16171 16171 16134 0 -1 4194304 804 0 0 0 9 0 0 0 19 0 1 0 242253737 3305472 705 1992294400 134512640 135031949 4294956224 18446744073709551615 134574217 0 0 4096 3 0 0 0 17 0 0 0
/proc/16172/statm: 807 705 67 126 0 678 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8588

[startup+0.301745 s]
/proc/loadavg: 0.00 0.15 0.83 3/64 16171
/proc/meminfo: memFree=742712/2055920 swapFree=4181160/4192956
[pid=16171] ppid=16169 vsize=5360 CPUtime=0.18
/proc/16171/stat : 16171 (run.sh) S 16169 16171 16134 0 -1 4194304 317 1115 0 0 0 0 18 0 16 0 1 0 242253737 5488640 241 1992294400 4194304 4889804 548682068784 18446744073709551615 254195327812 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16171/statm: 1340 241 197 169 0 51 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5360

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

Child status: 20
Real time (s): 0.315789
CPU time (s): 0.315951
CPU user time (s): 0.304953
CPU system time (s): 0.010998
CPU usage (%): 100.051
Max. virtual memory (cumulated for all children) (KiB): 8588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.304953
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1767
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= 10
involuntary context switches= 7

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node34 at 2009-05-12 17:30:11
IDJOB=1805748
IDBENCH=24589
IDSOLVER=648
FILE ID=node34/1805748-1242142211
PBS_JOBID= 9289687
Free space on /tmp= 66248 MiB

SOLVER NAME= ReVivAl 0.23 + SatElite 2009-03-18
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/run.sh BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1805748-1242142211/watcher-1805748-1242142211 -o /tmp/evaluation-result-1805748-1242142211/solver-1805748-1242142211 -C 1200 -W 1800 -M 1800  HOME/run.sh HOME/instance-1805748-1242142211.cnf HOME

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

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=1615565224

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:        743192 kB
Buffers:         83488 kB
Cached:        1132068 kB
SwapCached:       5588 kB
Active:         180636 kB
Inactive:      1042656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        743192 kB
SwapTotal:     4192956 kB
SwapFree:      4181160 kB
Dirty:            1900 kB
Writeback:           0 kB
Mapped:          13420 kB
Slab:            75472 kB
Committed_AS:   898264 kB
PageTables:       1380 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= 66244 MiB
End job on node34 at 2009-05-12 17:30:11