Trace number 1784671

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
IUT_BMB_SAT 1.0UNSAT 0.665898 0.670212

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
MD5SUM270191e44d7630b87c6baceebf140e40
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.187971
Satisfiable
(Un)Satisfiability was proved
Number of variables288
Number of clauses11604
Sum of the clauses size89223
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 214
Number of clauses of size 373
Number of clauses of size 472
Number of clauses of size 5457
Number of clauses of size over 510986

Solver Data 

0.00/0.00	c IUT_BMB_SAT version 1.0
0.08/0.14	c WARNING: for repeatability, setting FPU to use double precision
0.08/0.14	c ============================[ Problem Statistics ]=============================
0.08/0.14	c |                                                                             |
0.08/0.14	c |  Number of variables:  288                                                  |
0.08/0.14	c |  Number of clauses:    11602                                                |
0.08/0.16	c |  Parsing time:         0.02         s                                       |
0.13/0.66	c restarts              : 0
0.13/0.66	c conflicts             : 0              (0 /sec)
0.13/0.66	c decisions             : 0              ( nan % random) (0 /sec)
0.13/0.66	c propagations          : 12             (23 /sec)
0.13/0.66	c conflict literals     : 0              ( nan % deleted)
0.13/0.66	c Memory used           : 4.50 MB
0.13/0.66	c CPU time              : 0.52092 s
0.13/0.66	
0.13/0.66	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-1784671-1241864251/watcher-1784671-1241864251 -o /tmp/evaluation-result-1784671-1241864251/solver-1784671-1241864251 -C 5000 -W 6000 -M 1800 IUT_BMB_SAT HOME/instance-1784671-1241864251.cnf HOME 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=1420 CPUtime=0
/proc/27264/stat : 27264 (IUT_BMB_SAT) R 27262 27264 27111 0 -1 4194304 140 0 0 0 0 0 0 0 20 0 1 0 214458242 1454080 123 1992294400 134512640 135635285 4294956224 18446744073709551615 134533654 0 0 4096 0 0 0 0 17 1 0 0
/proc/27264/statm: 355 124 92 274 0 78 0

[startup+0.0689589 s]
/proc/loadavg: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=2616 CPUtime=0.05
/proc/27264/stat : 27264 (IUT_BMB_SAT) R 27262 27264 27111 0 -1 4194304 464 0 0 0 5 0 0 0 20 0 1 0 214458242 2678784 447 1992294400 134512640 135635285 4294956224 18446744073709551615 135132478 0 0 4096 0 0 0 0 17 1 0 0
/proc/27264/statm: 654 447 101 274 0 377 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2616

[startup+0.101962 s]
/proc/loadavg: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=2616 CPUtime=0.08
/proc/27264/stat : 27264 (IUT_BMB_SAT) R 27262 27264 27111 0 -1 4194304 464 0 0 0 6 2 0 0 20 0 1 0 214458242 2678784 447 1992294400 134512640 135635285 4294956224 18446744073709551615 135132478 0 0 4096 0 0 0 0 17 1 0 0
/proc/27264/statm: 654 447 101 274 0 377 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2616

[startup+0.301984 s]
/proc/loadavg: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=2616 CPUtime=0.13
/proc/27264/stat : 27264 (IUT_BMB_SAT) S 27262 27264 27111 0 -1 4194304 470 0 0 0 8 5 0 0 21 0 1 0 214458242 2678784 452 1992294400 134512640 135635285 4294956224 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 1 0 0
/proc/27264/statm: 654 452 106 274 0 377 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 2616

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

[startup+0.502007 s]
/proc/loadavg: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=2616 CPUtime=0.13
/proc/27264/stat : 27264 (IUT_BMB_SAT) S 27262 27264 27111 0 -1 4194304 470 0 0 0 8 5 0 0 21 0 1 0 214458242 2678784 452 1992294400 134512640 135635285 4294956224 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 1 0 0
/proc/27264/statm: 654 452 106 274 0 377 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 2616

[startup+0.602019 s]
/proc/loadavg: 0.99 0.97 0.88 3/65 27264
/proc/meminfo: memFree=1908016/2055920 swapFree=4159908/4192956
[pid=27264] ppid=27262 vsize=2616 CPUtime=0.13
/proc/27264/stat : 27264 (IUT_BMB_SAT) S 27262 27264 27111 0 -1 4194304 470 0 0 0 8 5 0 0 21 0 1 0 214458242 2678784 452 1992294400 134512640 135635285 4294956224 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 1 0 0
/proc/27264/statm: 654 452 106 274 0 377 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 2616

Child status: 0
Real time (s): 0.670212
CPU time (s): 0.665898
CPU user time (s): 0.606907
CPU system time (s): 0.058991
CPU usage (%): 99.3563
Max. virtual memory (cumulated for all children) (KiB): 2616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.606907
system time used= 0.058991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1919
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= 8
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node32 at 2009-05-09 12:17:31
IDJOB=1784671
IDBENCH=24586
IDSOLVER=638
FILE ID=node32/1784671-1241864251
PBS_JOBID= 9264580
Free space on /tmp= 66032 MiB

SOLVER NAME= IUT_BMB_SAT 1.0
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= IUT_BMB_SAT BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784671-1241864251/watcher-1784671-1241864251 -o /tmp/evaluation-result-1784671-1241864251/solver-1784671-1241864251 -C 5000 -W 6000 -M 1800  IUT_BMB_SAT HOME/instance-1784671-1241864251.cnf HOME

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 270191e44d7630b87c6baceebf140e40
RANDOM SEED=1427314590

node32.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		: 3000.216
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		: 3000.216
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:       1908496 kB
Buffers:         23384 kB
Cached:          57788 kB
SwapCached:      26540 kB
Active:          71260 kB
Inactive:        37784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1908496 kB
SwapTotal:     4192956 kB
SwapFree:      4159908 kB
Dirty:            2564 kB
Writeback:           0 kB
Mapped:          14188 kB
Slab:            24104 kB
Committed_AS:   742128 kB
PageTables:       1488 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66032 MiB
End job on node32 at 2009-05-09 12:17:32