Trace number 1542707

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
hybridGM 1SAT 0.110982 0.111428

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1258122549-031.cnf
MD5SUMe4beefd25957794efe8088679c7fff55
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
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 

0.00/0.03	c Heuristic: AdaptG2WSAT 
0.00/0.03	c Hybrid barrier : 1 
0.00/0.03	c Problem instance: numAtoms = 500, numClauses = 2125, numLiterals = 6375
0.00/0.03	c General parameters: seed=1990920984, cutoff=1000000000, targetCost = 0, print solution: yes
0.00/0.03	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 33
0.00/0.03	c tries = 1
0.00/0.03	c 
0.09/0.10	c gNovelty+ (M  1 )
0.09/0.10	s SATISFIABLE
0.09/0.10	v 1
0.09/0.10	v -2
0.09/0.10	v -3
0.09/0.10	v -4
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0.09/0.10	v -7
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0.09/0.10	v -9
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0.09/0.10	v -12
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0.09/0.11	v 0
0.09/0.11	c Done in 0.070000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1542707-1238570269/watcher-1542707-1238570269 -o /tmp/evaluation-result-1542707-1238570269/solver-1542707-1238570269 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM HOME/instance-1542707-1238570269.cnf 1990920984 

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: 0.99 0.98 1.00 3/64 8203
/proc/meminfo: memFree=1478328/2055920 swapFree=4177220/4192956
[pid=8203] ppid=8201 vsize=260600 CPUtime=0
/proc/8203/stat : 8203 (hybridGM) R 8201 8203 7864 0 -1 4194304 878 0 0 0 0 0 0 0 18 0 1 0 1129692713 266854400 862 1992294400 134512640 135204289 4294956208 18446744073709551615 134542712 0 0 4096 0 0 0 0 17 1 0 0
/proc/8203/statm: 65150 868 54 168 0 64980 0

[startup+0.0915321 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 8203
/proc/meminfo: memFree=1478328/2055920 swapFree=4177220/4192956
[pid=8203] ppid=8201 vsize=268816 CPUtime=0.08
/proc/8203/stat : 8203 (hybridGM) R 8201 8203 7864 0 -1 4194304 4713 0 0 0 6 2 0 0 18 0 1 0 1129692713 275267584 4696 1992294400 134512640 135204289 4294956208 18446744073709551615 134536895 0 0 4096 0 0 0 0 17 1 0 0
/proc/8203/statm: 67204 4696 84 168 0 67034 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 268816

[startup+0.101532 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 8203
/proc/meminfo: memFree=1478328/2055920 swapFree=4177220/4192956
[pid=8203] ppid=8201 vsize=268816 CPUtime=0.09
/proc/8203/stat : 8203 (hybridGM) R 8201 8203 7864 0 -1 4194304 4713 0 0 0 7 2 0 0 18 0 1 0 1129692713 275267584 4696 1992294400 134512640 135204289 4294956208 18446744073709551615 134537231 0 0 4096 0 0 0 0 17 1 0 0
/proc/8203/statm: 67204 4696 84 168 0 67034 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 268816

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

Child status: 10
Real time (s): 0.111428
CPU time (s): 0.110982
CPU user time (s): 0.085986
CPU system time (s): 0.024996
CPU usage (%): 99.5997
Max. virtual memory (cumulated for all children) (KiB): 268816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.085986
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4724
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 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-04-01 09:17:49
IDJOB=1542707
IDBENCH=70648
IDSOLVER=533
FILE ID=node20/1542707-1238570269
PBS_JOBID= 9070506
Free space on /tmp= 65684 MiB

SOLVER NAME= hybridGM 1
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1258122549-031.cnf
COMMAND LINE= HOME/hybridGM BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542707-1238570269/watcher-1542707-1238570269 -o /tmp/evaluation-result-1542707-1238570269/solver-1542707-1238570269 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM HOME/instance-1542707-1238570269.cnf 1990920984 

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

MD5SUM BENCH= e4beefd25957794efe8088679c7fff55
RANDOM SEED=1990920984

node20.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		: 3000.235
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		: 3000.235
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:       1478744 kB
Buffers:         94976 kB
Cached:         380468 kB
SwapCached:       9532 kB
Active:         208112 kB
Inactive:       278280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1478744 kB
SwapTotal:     4192956 kB
SwapFree:      4177220 kB
Dirty:            1220 kB
Writeback:           0 kB
Mapped:          16664 kB
Slab:            76740 kB
Committed_AS:  3002768 kB
PageTables:       1404 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= 65680 MiB
End job on node20 at 2009-04-01 09:17:49