Trace number 1730566
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:
-
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.
-
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.
-
CONVERSION SCRIPT DATA (Optionnal)
When a conversion script is used, this section shows the messages that were output by the conversion script.
-
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.
-
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 Name | Answer | CPU time | Wall clock time |
|---|
| hybridGM3 3 | ? (exit code) | 0.074988 | 0.0759101 |
General information on the benchmark
| Name | crafted/Difficult/contest05/others/
pmg-13-UNSAT.sat05-3941.reshuffled-07.cnf |
| MD5SUM | 9ce7a6a007310fa075cda4060c50d29c |
| Bench Category | CRAFTED (crafted instances) |
| Best result obtained on this benchmark | UNSAT |
| Best CPU time to get the best result obtained on this benchmark | 16.0386 |
| Satisfiable | |
| (Un)Satisfiability was proved | |
| Number of variables | 409 |
| Number of clauses | 1362 |
| Sum of the clauses size | 4084 |
| Maximum clause length | 3 |
| Minimum clause length | 2 |
| Number of clauses of size 1 | 0 |
| Number of clauses of size 2 | 2 |
| Number of clauses of size 3 | 1360 |
| Number of clauses of size 4 | 0 |
| Number of clauses of size 5 | 0 |
| Number of clauses of size over 5 | 0 |
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 = 409, numClauses = 1362, numLiterals = 4084
0.00/0.03 c General parameters: seed=98796903, 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
0.00/0.07 Program error, verification of assignment cost fails!
Verifier Data
ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>
Watcher Data
runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1730566-1240760900/watcher-1730566-1240760900 -o /tmp/evaluation-result-1730566-1240760900/solver-1730566-1240760900 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM3 HOME/instance-1730566-1240760900.cnf 98796903
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 2/64 26493
/proc/meminfo: memFree=1346744/2055920 swapFree=4192812/4192956
[pid=26493] ppid=26491 vsize=260600 CPUtime=0
/proc/26493/stat : 26493 (hybridGM3) R 26491 26493 26074 0 -1 4194304 888 0 0 0 0 0 0 0 18 0 1 0 104123620 266854400 873 1992294400 134512640 135204385 4294956208 18446744073709551615 134542712 0 0 4096 0 0 0 0 17 1 0 0
/proc/26493/statm: 65150 880 55 168 0 64980 0
Solver just ended. Dumping a history of the last processes samples
Child status: 255
Real time (s): 0.0759101
CPU time (s): 0.074988
CPU user time (s): 0.049992
CPU system time (s): 0.024996
CPU usage (%): 98.7853
Max. virtual memory (cumulated for all children) (KiB): 0
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.049992
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= 4701
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 0.002999 second user time and 0.005999 second system time
The end
Launcher Data
Begin job on node10 at 2009-04-26 17:48:20
IDJOB=1730566
IDBENCH=24732
IDSOLVER=534
FILE ID=node10/1730566-1240760900
PBS_JOBID= 9187115
Free space on /tmp= 66376 MiB
SOLVER NAME= hybridGM3 3
BENCH NAME= SAT07/crafted/Difficult/contest05/others/pmg-13-UNSAT.sat05-3941.reshuffled-07.cnf
COMMAND LINE= HOME/hybridGM3 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1730566-1240760900/watcher-1730566-1240760900 -o /tmp/evaluation-result-1730566-1240760900/solver-1730566-1240760900 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM3 HOME/instance-1730566-1240760900.cnf 98796903
TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0
MD5SUM BENCH= 9ce7a6a007310fa075cda4060c50d29c
RANDOM SEED=98796903
node10.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 : 3000.263
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 : 5931.00
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 : 3000.263
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: 1347224 kB
Buffers: 63964 kB
Cached: 562656 kB
SwapCached: 0 kB
Active: 277232 kB
Inactive: 363244 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 2055920 kB
LowFree: 1347224 kB
SwapTotal: 4192956 kB
SwapFree: 4192812 kB
Dirty: 1156 kB
Writeback: 0 kB
Mapped: 23648 kB
Slab: 54288 kB
Committed_AS: 404464 kB
PageTables: 1372 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= 66372 MiB
End job on node10 at 2009-04-26 17:48:20