Trace number 1806897

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 2009-03-18SAT 0.904861 0.906786

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK09.cnf
MD5SUM167bdfed21466d25646b3f9481920143
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses15120
Sum of the clauses size181440
Maximum clause length12
Minimum clause length12
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 515120

Solver Data 

0.00/0.00	c revival is preprocessing the formula...#ITERATIONS 1
0.79/0.82	#LEARNT CLAUSES 0
0.79/0.87	done !
0.79/0.87	c Calling MINISAT
0.79/0.87	This is MiniSat 2.0 beta
0.79/0.87	WARNING: for repeatability, setting FPU to use double precision
0.79/0.87	============================[ Problem Statistics ]=============================
0.79/0.87	|                                                                             |
0.79/0.87	|  Number of variables:  36                                                   |
0.79/0.87	|  Number of clauses:    15120                                                |
0.79/0.90	|  Parsing time:         0.02         s                                       |
0.79/0.90	============================[ Search Statistics ]==============================
0.79/0.90	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.79/0.90	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.86/0.90	===============================================================================
0.86/0.90	|         0 |      36    15120   181440 |     5040        0    nan |  0.000 % |
0.86/0.90	===============================================================================
0.86/0.90	restarts              : 1
0.86/0.90	conflicts             : 0              (0 /sec)
0.86/0.90	decisions             : 27             (0.00 % random) (1421 /sec)
0.86/0.90	propagations          : 36             (1895 /sec)
0.86/0.90	conflict literals     : 0              ( nan % deleted)
0.86/0.90	Memory used           : 3.01 MB
0.86/0.90	CPU time              : 0.018997 s
0.86/0.90	
0.86/0.90	SATISFIABLE
0.86/0.90	s SATISFIABLE
0.86/0.90	v -1 2 3 4 5 6 -7 -8 9 10 11 12 13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1806897-1242153396/watcher-1806897-1242153396 -o /tmp/evaluation-result-1806897-1242153396/solver-1806897-1242153396 -C 1200 -W 1800 -M 1800 HOME/run.sh HOME/instance-1806897-1242153396.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: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0
/proc/8901/stat : 8901 (run.sh) R 8899 8901 8482 0 -1 4194304 268 0 0 0 0 0 0 0 19 0 1 0 243368883 5488640 236 1992294400 4194304 4889804 548682068784 18446744073709551615 230266825375 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/8901/statm: 1340 236 195 169 0 51 0
[pid=8902] ppid=8901 vsize=2124 CPUtime=0
/proc/8902/stat : 8902 (revival) R 8901 8901 8482 0 -1 4194304 250 0 0 0 0 0 0 0 19 0 1 0 243368883 2174976 217 1992294400 134512640 134537284 4294956368 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/8902/statm: 531 223 81 6 0 169 0

[startup+0.0663889 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0
/proc/8901/stat : 8901 (run.sh) S 8899 8901 8482 0 -1 4194304 286 0 0 0 0 0 0 0 19 0 1 0 243368883 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/8901/statm: 1340 237 196 169 0 51 0
[pid=8902] ppid=8901 vsize=2936 CPUtime=0.06
/proc/8902/stat : 8902 (revival) R 8901 8901 8482 0 -1 4194304 615 0 0 0 6 0 0 0 20 0 1 50000 243368883 3006464 430 1992294400 134512640 134537284 4294956368 18446744073709551615 134523798 0 0 4096 8192 0 0 0 17 0 0 0
/proc/8902/statm: 734 430 85 6 0 372 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8296

[startup+0.102392 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0
/proc/8901/stat : 8901 (run.sh) S 8899 8901 8482 0 -1 4194304 286 0 0 0 0 0 0 0 19 0 1 0 243368883 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/8901/statm: 1340 237 196 169 0 51 0
[pid=8902] ppid=8901 vsize=2936 CPUtime=0.09
/proc/8902/stat : 8902 (revival) R 8901 8901 8482 0 -1 4194304 622 0 0 0 9 0 0 0 20 0 1 50000 243368883 3006464 437 1992294400 134512640 134537284 4294956368 18446744073709551615 134523720 0 0 4096 8192 0 0 0 17 0 0 0
/proc/8902/statm: 734 437 85 6 0 372 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8296

[startup+0.301412 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0
/proc/8901/stat : 8901 (run.sh) S 8899 8901 8482 0 -1 4194304 286 0 0 0 0 0 0 0 19 0 1 0 243368883 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/8901/statm: 1340 237 196 169 0 51 0
[pid=8902] ppid=8901 vsize=3076 CPUtime=0.29
/proc/8902/stat : 8902 (revival) R 8901 8901 8482 0 -1 4194304 670 0 0 0 29 0 0 0 22 0 1 50000 243368883 3149824 485 1992294400 134512640 134537284 4294956368 18446744073709551615 134523727 0 0 4096 8192 0 0 0 17 0 0 0
/proc/8902/statm: 769 485 85 6 0 407 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8436

[startup+0.701454 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0
/proc/8901/stat : 8901 (run.sh) S 8899 8901 8482 0 -1 4194304 286 0 0 0 0 0 0 0 19 0 1 0 243368883 5488640 237 1992294400 4194304 4889804 548682068784 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/8901/statm: 1340 237 196 169 0 51 0
[pid=8902] ppid=8901 vsize=3216 CPUtime=0.69
/proc/8902/stat : 8902 (revival) R 8901 8901 8482 0 -1 4194304 692 0 0 0 69 0 0 0 25 0 1 50000 243368883 3293184 507 1992294400 134512640 134537284 4294956368 18446744073709551615 134523842 0 0 4096 8192 0 0 0 17 0 0 0
/proc/8902/statm: 804 507 85 6 0 442 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8576

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

[startup+0.901477 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 8901
/proc/meminfo: memFree=1220648/2055924 swapFree=4181596/4192956
[pid=8901] ppid=8899 vsize=5360 CPUtime=0.86
/proc/8901/stat : 8901 (run.sh) S 8899 8901 8482 0 -1 4194304 312 707 0 0 0 0 86 0 16 0 1 0 243368883 5488640 238 1992294400 4194304 4889804 548682068784 18446744073709551615 230266823492 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8901/statm: 1340 238 197 169 0 51 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 5360

Child status: 10
Real time (s): 0.906786
CPU time (s): 0.904861
CPU user time (s): 0.890864
CPU system time (s): 0.013997
CPU usage (%): 99.7877
Max. virtual memory (cumulated for all children) (KiB): 8576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.890864
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1921
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= 13
involuntary context switches= 29

runsolver used 0.008998 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node83 at 2009-05-12 20:36:36
IDJOB=1806897
IDBENCH=71125
IDSOLVER=649
FILE ID=node83/1806897-1242153396
PBS_JOBID= 9289643
Free space on /tmp= 66180 MiB

SOLVER NAME= ReVivAl 0.23 2009-03-18
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK09.cnf
COMMAND LINE= HOME/run.sh BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806897-1242153396/watcher-1806897-1242153396 -o /tmp/evaluation-result-1806897-1242153396/solver-1806897-1242153396 -C 1200 -W 1800 -M 1800  HOME/run.sh HOME/instance-1806897-1242153396.cnf HOME

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

MD5SUM BENCH= 167bdfed21466d25646b3f9481920143
RANDOM SEED=1760670570

node83.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		: 3000.222
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		: 3000.222
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:      2055924 kB
MemFree:       1221200 kB
Buffers:         73936 kB
Cached:         668600 kB
SwapCached:       5464 kB
Active:          58492 kB
Inactive:       692056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1221200 kB
SwapTotal:     4192956 kB
SwapFree:      4181596 kB
Dirty:            2016 kB
Writeback:           0 kB
Mapped:          13620 kB
Slab:            70176 kB
Committed_AS:   887776 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= 66176 MiB
End job on node83 at 2009-05-12 20:36:37