Trace number 1545973

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
SAT07 reference solver: gnovelty+ 2007-02-08SAT 0.188971 0.190007

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1494961823-060.cnf
MD5SUM7495f98ae37985dd5ad2be6175c3d801
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023995
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c +------------------------------+
0.00/0.01	c | gNovelty+, version 1.0       |
0.00/0.01	c +------------------------------+
0.00/0.01	c gnovelty+ -h for help
0.00/0.01	c 
0.00/0.01	c Problem instance: numAtoms = 500, numClauses = 2125, numLiterals = 6375
0.00/0.01	c General parameters: seed=229279402, cutoff=100000, targetCost = 0, print solution: yes
0.00/0.01	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 40
0.00/0.01	c tries = 1
0.00/0.01	c 
0.09/0.18	s SATISFIABLE
0.09/0.18	v -1
0.09/0.18	v -2
0.09/0.18	v 3
0.09/0.18	v -4
0.09/0.18	v 5
0.09/0.18	v -6
0.09/0.18	v -7
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0.09/0.18	v -9
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0.09/0.18	v -12
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0.09/0.18	v -20
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0.09/0.18	v -29
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0.09/0.18	v -33
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0.09/0.19	v 0
0.09/0.19	c Done in 0.170000 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-1545973-1238675685/watcher-1545973-1238675685 -o /tmp/evaluation-result-1545973-1238675685/solver-1545973-1238675685 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1545973-1238675685.cnf 

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 10876
/proc/meminfo: memFree=1184496/2055920 swapFree=4176856/4192956
[pid=10876] ppid=10874 vsize=244700 CPUtime=0
/proc/10876/stat : 10876 (gnovelty+) R 10874 10876 10518 0 -1 4194304 906 0 0 0 0 0 0 0 19 0 1 0 1026942196 250572800 892 1992294400 134512640 134921880 4294956240 18446744073709551615 134518504 0 0 4096 0 0 0 0 17 0 0 0
/proc/10876/statm: 61175 899 39 99 0 61074 0

[startup+0.0853949 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 10876
/proc/meminfo: memFree=1184496/2055920 swapFree=4176856/4192956
[pid=10876] ppid=10874 vsize=252512 CPUtime=0.08
/proc/10876/stat : 10876 (gnovelty+) R 10874 10876 10518 0 -1 4194304 2090 0 0 0 7 1 0 0 19 0 1 0 1026942196 258572288 2075 1992294400 134512640 134921880 4294956240 18446744073709551615 134513222 0 0 4096 0 0 0 0 17 0 0 0
/proc/10876/statm: 63128 2075 44 99 0 63027 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 252512

[startup+0.101397 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 10876
/proc/meminfo: memFree=1184496/2055920 swapFree=4176856/4192956
[pid=10876] ppid=10874 vsize=252512 CPUtime=0.09
/proc/10876/stat : 10876 (gnovelty+) R 10874 10876 10518 0 -1 4194304 2090 0 0 0 8 1 0 0 19 0 1 0 1026942196 258572288 2075 1992294400 134512640 134921880 4294956240 18446744073709551615 134513764 0 0 4096 0 0 0 0 17 0 0 0
/proc/10876/statm: 63128 2075 44 99 0 63027 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 252512

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

Child status: 10
Real time (s): 0.190007
CPU time (s): 0.188971
CPU user time (s): 0.176973
CPU system time (s): 0.011998
CPU usage (%): 99.4547
Max. virtual memory (cumulated for all children) (KiB): 252512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.176973
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2100
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= 0

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-02 14:34:45
IDJOB=1545973
IDBENCH=70644
IDSOLVER=561
FILE ID=node8/1545973-1238675685
PBS_JOBID= 9075397
Free space on /tmp= 64248 MiB

SOLVER NAME= SAT07 reference solver: gnovelty+ 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1494961823-060.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1545973-1238675685/watcher-1545973-1238675685 -o /tmp/evaluation-result-1545973-1238675685/solver-1545973-1238675685 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1545973-1238675685.cnf            

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

MD5SUM BENCH= 7495f98ae37985dd5ad2be6175c3d801
RANDOM SEED=1012695928

node8.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		: 3000.232
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		: 3000.232
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:       1184976 kB
Buffers:        108536 kB
Cached:         654808 kB
SwapCached:       9204 kB
Active:         219792 kB
Inactive:       554188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1184976 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:             948 kB
Writeback:           0 kB
Mapped:          16376 kB
Slab:            82784 kB
Committed_AS:  2743712 kB
PageTables:       1376 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= 64248 MiB
End job on node8 at 2009-04-02 14:34:45