Trace number 1732885

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
gnovelty+2 2009-03-22SAT 0.350946 0.351358

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK10.cnf
MD5SUM0d32a4893e12fa46a8943c5daeb46b88
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.12498
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses75600
Sum of the clauses size907200
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 575600

Solver Data 

0.29/0.33	c +------------------------------+
0.29/0.33	c | gNovelty+, version 2.0       |
0.29/0.33	c +------------------------------+
0.29/0.33	c gnovelty+ -h for help
0.29/0.33	c 
0.29/0.33	c Problem instance: numAtoms = 45, numClauses = 75600
0.29/0.33	c General parameters: seed = 427364289, timeout = 10 secs, targetCost = 0, print solution: no
0.29/0.33	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 1.00, noise = adaptive
0.29/0.33	c tries = 1
0.29/0.33	c 
0.29/0.34	c      0        2         0         2         0      0.01
0.29/0.34	s SATISFIABLE
0.29/0.34	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 -37 38 39 40 -41 42 -43 -44 45 0
0.29/0.35	c Done in 0.010000 seconds

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-1732885-1240783927/watcher-1732885-1240783927 -o /tmp/evaluation-result-1732885-1240783927/solver-1732885-1240783927 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1732885-1240783927.cnf 427364289 

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: 1.00 1.00 1.00 3/65 24574
/proc/meminfo: memFree=1831384/2055920 swapFree=4181392/4192956
[pid=24574] ppid=24572 vsize=1018020 CPUtime=0
/proc/24574/stat : 24574 (gnovelty+2) R 24572 24574 24317 0 -1 4194304 142 0 0 0 0 0 0 0 20 0 1 0 106421938 1042452480 126 1992294400 134512640 135663704 4294956208 18446744073709551615 135160590 0 0 4096 0 0 0 0 17 1 0 0
/proc/24574/statm: 254505 126 96 281 0 254221 0

[startup+0.0913891 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 24574
/proc/meminfo: memFree=1831384/2055920 swapFree=4181392/4192956
[pid=24574] ppid=24572 vsize=1018804 CPUtime=0.08
/proc/24574/stat : 24574 (gnovelty+2) R 24572 24574 24317 0 -1 4194304 441 0 0 0 8 0 0 0 20 0 1 0 106421938 1043255296 425 1992294400 134512640 135663704 4294956208 18446744073709551615 134518254 0 0 4096 0 0 0 0 17 1 0 0
/proc/24574/statm: 254701 425 96 281 0 254417 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1018804

[startup+0.102388 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 24574
/proc/meminfo: memFree=1831384/2055920 swapFree=4181392/4192956
[pid=24574] ppid=24572 vsize=1018804 CPUtime=0.1
/proc/24574/stat : 24574 (gnovelty+2) R 24572 24574 24317 0 -1 4194304 480 0 0 0 10 0 0 0 20 0 1 0 106421938 1043255296 464 1992294400 134512640 135663704 4294956208 18446744073709551615 135288842 0 0 4096 0 0 0 0 17 1 0 0
/proc/24574/statm: 254701 464 96 281 0 254417 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1018804

[startup+0.302416 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 24574
/proc/meminfo: memFree=1831384/2055920 swapFree=4181392/4192956
[pid=24574] ppid=24572 vsize=1021156 CPUtime=0.29
/proc/24574/stat : 24574 (gnovelty+2) R 24572 24574 24317 0 -1 4194304 1172 0 0 0 29 0 0 0 22 0 1 0 106421938 1045663744 1156 1992294400 134512640 135663704 4294956208 18446744073709551615 135295624 0 0 4096 0 0 0 0 17 1 0 0
/proc/24574/statm: 255289 1157 96 281 0 255005 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1021156

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

Child status: 10
Real time (s): 0.351358
CPU time (s): 0.350946
CPU user time (s): 0.337948
CPU system time (s): 0.012998
CPU usage (%): 99.8827
Max. virtual memory (cumulated for all children) (KiB): 1021156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.337948
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2449
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= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-27 00:12:08
IDJOB=1732885
IDBENCH=71129
IDSOLVER=548
FILE ID=node87/1732885-1240783927
PBS_JOBID= 9187277
Free space on /tmp= 66440 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK10.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732885-1240783927/watcher-1732885-1240783927 -o /tmp/evaluation-result-1732885-1240783927/solver-1732885-1240783927 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1732885-1240783927.cnf 427364289

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

MD5SUM BENCH= 0d32a4893e12fa46a8943c5daeb46b88
RANDOM SEED=427364289

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1831864 kB
Buffers:         24368 kB
Cached:         136528 kB
SwapCached:       5228 kB
Active:          62908 kB
Inactive:       105640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1831864 kB
SwapTotal:     4192956 kB
SwapFree:      4181392 kB
Dirty:            4452 kB
Writeback:           0 kB
Mapped:          13372 kB
Slab:            41412 kB
Committed_AS:   403912 kB
PageTables:       1456 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= 66440 MiB
End job on node87 at 2009-04-27 00:12:08