Trace number 1805749

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 2009-03-18UNSAT 1.76973 1.77142

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 revival is preprocessing the formula...Proved UNSATISFIABLE by ReVivAl !!
1.69/1.76	(polynomial instance)
1.69/1.76	done !
1.69/1.76	c Calling MINISAT
1.69/1.77	This is MiniSat 2.0 beta
1.69/1.77	WARNING: for repeatability, setting FPU to use double precision
1.69/1.77	============================[ Problem Statistics ]=============================
1.69/1.77	|                                                                             |
1.69/1.77	|  Number of variables:  1                                                    |
1.69/1.77	|  Number of clauses:    2                                                    |
1.69/1.77	|  Parsing time:         0.00         s                                       |
1.69/1.77	Solved by unit propagation
1.69/1.77	UNSATISFIABLE
1.69/1.77	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-1805749-1242142211/watcher-1805749-1242142211 -o /tmp/evaluation-result-1805749-1242142211/solver-1805749-1242142211 -C 1200 -W 1800 -M 1800 HOME/run.sh HOME/instance-1805749-1242142211.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 0.14 0.70 3/64 1860
/proc/meminfo: memFree=1698104/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) R 1858 1860 1820 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 236 1992294400 4194304 4889804 548682068784 18446744073709551615 233402067615 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/1860/statm: 1340 236 195 169 0 51 0
[pid=1861] ppid=1860 vsize=1520 CPUtime=0
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 91 0 0 0 0 0 0 0 18 0 1 0 242247155 1556480 67 1992294400 134512640 134537284 4294956368 18446744073709551615 8415953 0 0 4096 0 0 0 0 17 0 0 0
/proc/1861/statm: 368 72 56 6 0 6 0

[startup+0.0852511 s]
/proc/loadavg: 0.00 0.14 0.70 3/64 1860
/proc/meminfo: memFree=1698104/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2720 CPUtime=0.07
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 471 0 0 0 7 0 0 0 19 0 1 50000 242247155 2785280 362 1992294400 134512640 134537284 4294956368 18446744073709551615 134523789 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 680 362 85 6 0 318 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8080

[startup+0.101252 s]
/proc/loadavg: 0.00 0.14 0.70 3/64 1860
/proc/meminfo: memFree=1698104/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2720 CPUtime=0.09
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 471 0 0 0 9 0 0 0 19 0 1 50000 242247155 2785280 362 1992294400 134512640 134537284 4294956368 18446744073709551615 134524080 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 680 362 85 6 0 318 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8080

[startup+0.301271 s]
/proc/loadavg: 0.00 0.14 0.70 3/64 1860
/proc/meminfo: memFree=1698104/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2720 CPUtime=0.29
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 475 0 0 0 29 0 0 0 21 0 1 50000 242247155 2785280 366 1992294400 134512640 134537284 4294956368 18446744073709551615 134523670 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 680 366 85 6 0 318 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8080

[startup+0.701311 s]
/proc/loadavg: 0.00 0.14 0.70 3/64 1860
/proc/meminfo: memFree=1698104/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2720 CPUtime=0.69
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 484 0 0 0 69 0 0 0 25 0 1 50000 242247155 2785280 375 1992294400 134512640 134537284 4294956368 18446744073709551615 134523819 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 680 375 85 6 0 318 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8080

[startup+1.50139 s]
/proc/loadavg: 0.08 0.16 0.70 2/66 1862
/proc/meminfo: memFree=1696488/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2720 CPUtime=1.49
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 501 0 0 0 149 0 0 0 25 0 1 50000 242247155 2785280 392 1992294400 134512640 134537284 4294956368 18446744073709551615 134523851 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 680 392 85 6 0 318 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8080

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

[startup+1.70141 s]
/proc/loadavg: 0.08 0.16 0.70 2/66 1862
/proc/meminfo: memFree=1696488/2055920 swapFree=4180268/4192956
[pid=1860] ppid=1858 vsize=5360 CPUtime=0
/proc/1860/stat : 1860 (run.sh) S 1858 1860 1820 0 -1 4194304 286 0 0 0 0 0 0 0 18 0 1 0 242247154 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 233402065732 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/1860/statm: 1340 237 196 169 0 51 0
[pid=1861] ppid=1860 vsize=2852 CPUtime=1.69
/proc/1861/stat : 1861 (revival) R 1860 1860 1820 0 -1 4194304 504 0 0 0 169 0 0 0 25 0 1 50000 242247155 2920448 395 1992294400 134512640 134537284 4294956368 18446744073709551615 134515896 0 0 4096 8192 0 0 0 17 0 0 0
/proc/1861/statm: 713 395 85 6 0 351 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 8212

Child status: 20
Real time (s): 1.77142
CPU time (s): 1.76973
CPU user time (s): 1.76473
CPU system time (s): 0.004999
CPU usage (%): 99.9044
Max. virtual memory (cumulated for all children) (KiB): 8212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.76473
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 931
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= 7
involuntary context switches= 17

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node70 at 2009-05-12 17:30:11
IDJOB=1805749
IDBENCH=24589
IDSOLVER=649
FILE ID=node70/1805749-1242142211
PBS_JOBID= 9289655
Free space on /tmp= 66328 MiB

SOLVER NAME= ReVivAl 0.23 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-1805749-1242142211/watcher-1805749-1242142211 -o /tmp/evaluation-result-1805749-1242142211/solver-1805749-1242142211 -C 1200 -W 1800 -M 1800  HOME/run.sh HOME/instance-1805749-1242142211.cnf HOME

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

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=67559114

node70.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		: 3000.213
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		: 3000.213
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:       1698592 kB
Buffers:         39972 kB
Cached:         237704 kB
SwapCached:       6496 kB
Active:          57884 kB
Inactive:       228156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1698592 kB
SwapTotal:     4192956 kB
SwapFree:      4180268 kB
Dirty:            1912 kB
Writeback:           0 kB
Mapped:          13948 kB
Slab:            57328 kB
Committed_AS:   831240 kB
PageTables:       1372 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= 66328 MiB
End job on node70 at 2009-05-12 17:30:13