Trace number 1561497

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 1? (exit code) 0.007998 0.00746593

General information on the benchmark

NameCRAFTED/edgematching/
explicit/em_12_2_4_exp.cnf
MD5SUMe72d819fa5b57b6476ac56a442ceab9b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark4.73928
Satisfiable
(Un)Satisfiability was proved
Number of variables12584
Number of clauses681936
Sum of the clauses size1576368
Maximum clause length100
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2543628
Number of clauses of size 3103200
Number of clauses of size 417828
Number of clauses of size 517000
Number of clauses of size over 5280

Solver Data 

0.00/0.00	ERROR - clause too long

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-1561497-1238766773/watcher-1561497-1238766773 -o /tmp/evaluation-result-1561497-1238766773/solver-1561497-1238766773 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM HOME/instance-1561497-1238766773.cnf 579415358 

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 1.21 1.20 3/81 26249
/proc/meminfo: memFree=1645064/2055920 swapFree=4172784/4192956
[pid=26249] ppid=26247 vsize=268416 CPUtime=0
/proc/26249/stat : 26249 (hybridGM) R 26247 26249 26181 0 -1 4194304 1067 0 0 0 0 0 0 0 18 0 1 0 1149341164 274857984 1051 1992294400 134512640 135204289 4294956224 18446744073709551615 134856777 0 0 4096 0 0 0 0 17 1 0 0
/proc/26249/statm: 67104 1051 56 168 0 66934 0

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

Child status: 255
Real time (s): 0.00746593
CPU time (s): 0.007998
CPU user time (s): 0.003999
CPU system time (s): 0.003999
CPU usage (%): 107.127
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.003999
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1070
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 0.005999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-03 15:52:53
IDJOB=1561497
IDBENCH=70916
IDSOLVER=533
FILE ID=node87/1561497-1238766773
PBS_JOBID= 9085512
Free space on /tmp= 66428 MiB

SOLVER NAME= hybridGM 1
BENCH NAME= SAT09/APPLICATIONS/edgematching/explicit/em_12_2_4_exp.cnf
COMMAND LINE= HOME/hybridGM BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1561497-1238766773/watcher-1561497-1238766773 -o /tmp/evaluation-result-1561497-1238766773/solver-1561497-1238766773 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM HOME/instance-1561497-1238766773.cnf 579415358 

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

MD5SUM BENCH= e72d819fa5b57b6476ac56a442ceab9b
RANDOM SEED=579415358

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		: 3000.236
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		: 3000.236
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:       1645480 kB
Buffers:         61368 kB
Cached:         268464 kB
SwapCached:       9352 kB
Active:         140676 kB
Inactive:       200048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1645480 kB
SwapTotal:     4192956 kB
SwapFree:      4172784 kB
Dirty:           11736 kB
Writeback:           0 kB
Mapped:          16440 kB
Slab:            53804 kB
Committed_AS:  2868856 kB
PageTables:       2676 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= 66428 MiB
End job on node87 at 2009-04-03 15:52:54