Trace number 1783065

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+-T 2009-03-22SAT 2.56761 2.5691

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/4000/
unif-k3-r4.2-v4000-c16800-S1835046931-014.cnf
MD5SUM526915dc72c013b3ed33744e623b5ae9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.12783
Satisfiable
(Un)Satisfiability was proved
Number of variables4000
Number of clauses16800
Sum of the clauses size50400
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316800
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

0.09/0.18	c +------------------------------+
0.09/0.18	c | gNovelty+, version 1.0       |
0.09/0.18	c +------------------------------+
0.09/0.18	c gnovelty+ -h for help
0.09/0.18	c 
2.49/2.55	s SATISFIABLE
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2.49/2.55	c Done in 2.370000 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-1783065-1241720052/watcher-1783065-1241720052 -o /tmp/evaluation-result-1783065-1241720052/solver-1783065-1241720052 -C 5000 -W 6000 -M 1800 HOME/gnovelty+ HOME/instance-1783065-1241720052.cnf 486417463 0 

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 1.00 3/64 2975
/proc/meminfo: memFree=1996452/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=509152 CPUtime=0
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 1011 0 0 0 0 0 0 0 18 0 1 0 200037808 521371648 997 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 127288 1003 102 285 0 127000 0

[startup+0.0771311 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 2975
/proc/meminfo: memFree=1996452/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=516968 CPUtime=0.07
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 9981 0 0 0 3 4 0 0 18 0 1 0 200037808 529375232 9966 1992294400 134512640 135680988 4294956208 18446744073709551615 134958286 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129242 9966 102 285 0 128954 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 516968

[startup+0.101134 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 2975
/proc/meminfo: memFree=1996452/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=516964 CPUtime=0.09
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 12899 0 0 0 4 5 0 0 18 0 1 0 200037808 529371136 12883 1992294400 134512640 135680988 4294956208 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129241 12888 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.301155 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 2975
/proc/meminfo: memFree=1996452/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=518576 CPUtime=0.29
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 20046 0 0 0 21 8 0 0 19 0 1 0 200037808 531021824 20030 1992294400 134512640 135680988 4294956208 18446744073709551615 134546271 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129644 20030 104 285 0 129356 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 518576

[startup+0.701199 s]
/proc/loadavg: 0.99 0.97 1.00 3/64 2975
/proc/meminfo: memFree=1996452/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=518576 CPUtime=0.69
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 20046 0 0 0 61 8 0 0 23 0 1 0 200037808 531021824 20030 1992294400 134512640 135680988 4294956208 18446744073709551615 134534576 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129644 20030 104 285 0 129356 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 518576

[startup+1.50129 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 2976
/proc/meminfo: memFree=1916508/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=518576 CPUtime=1.49
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 20046 0 0 0 141 8 0 0 25 0 1 0 200037808 531021824 20030 1992294400 134512640 135680988 4294956208 18446744073709551615 134533047 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129644 20030 104 285 0 129356 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 518576

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

[startup+2.30137 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 2976
/proc/meminfo: memFree=1916380/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=518576 CPUtime=2.29
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 20046 0 0 0 221 8 0 0 25 0 1 0 200037808 531021824 20030 1992294400 134512640 135680988 4294956208 18446744073709551615 134533858 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129644 20030 104 285 0 129356 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 518576

[startup+2.5014 s]
/proc/loadavg: 0.99 0.97 1.00 2/65 2976
/proc/meminfo: memFree=1916380/2055920 swapFree=4181212/4192956
[pid=2975] ppid=2973 vsize=518576 CPUtime=2.49
/proc/2975/stat : 2975 (gnovelty+) R 2973 2975 2795 0 -1 4194304 20046 0 0 0 241 8 0 0 25 0 1 0 200037808 531021824 20030 1992294400 134512640 135680988 4294956208 18446744073709551615 134532941 0 0 4096 0 0 0 0 17 1 0 0
/proc/2975/statm: 129644 20030 104 285 0 129356 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 518576

Child status: 10
Real time (s): 2.5691
CPU time (s): 2.56761
CPU user time (s): 2.46663
CPU system time (s): 0.100984
CPU usage (%): 99.9421
Max. virtual memory (cumulated for all children) (KiB): 518576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.46663
system time used= 0.100984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20064
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= 3

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data

Begin job on node35 at 2009-05-07 20:14:13
IDJOB=1783065
IDBENCH=70337
IDSOLVER=636
FILE ID=node35/1783065-1241720052
PBS_JOBID= 9264362
Free space on /tmp= 66288 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/4000/unif-k3-r4.2-v4000-c16800-S1835046931-014.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783065-1241720052/watcher-1783065-1241720052 -o /tmp/evaluation-result-1783065-1241720052/solver-1783065-1241720052 -C 5000 -W 6000 -M 1800  HOME/gnovelty+ HOME/instance-1783065-1241720052.cnf 486417463 0

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

MD5SUM BENCH= 526915dc72c013b3ed33744e623b5ae9
RANDOM SEED=486417463

node35.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:       1996868 kB
Buffers:          3112 kB
Cached:          20572 kB
SwapCached:       5964 kB
Active:          18672 kB
Inactive:        13288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1996868 kB
SwapTotal:     4192956 kB
SwapFree:      4181212 kB
Dirty:            1928 kB
Writeback:           0 kB
Mapped:          13372 kB
Slab:            13112 kB
Committed_AS:   792264 kB
PageTables:       1396 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= 66288 MiB
End job on node35 at 2009-05-07 20:14:15