Trace number 331505

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, and are wall clock time (not CPU 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
ranov 2007-02-08? (exit code) 0.029995 0.0314021

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug3.cnf
MD5SUMdc050785d671b86f856b07b158553686
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark53.1199
Satisfiable
(Un)Satisfiability was proved
Number of variables521046
Number of clauses13376161
Sum of the clauses size39197797
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28713411
Number of clauses of size 34208212
Number of clauses of size 425250
Number of clauses of size 515675
Number of clauses of size over 5413612

Solver Data (download as text)

0.00/0.02	c ERROR - too many atoms
0.00/0.02	c +------------------------------+
0.00/0.02	c | R+AdaptNovelty+, version 1.5 |
0.00/0.02	c +------------------------------+
0.00/0.02	c ranov -h for help
0.00/0.02	c

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node75/watcher-331505-1173184723 -o ROOT/results/node75/solver-331505-1173184723 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331505-1173184723/ranov /tmp/evaluation/331505-1173184723/instance-331505-1173184723.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): 2400 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: 1.16 1.04 1.01 3/64 2910
/proc/meminfo: memFree=1332176/2055920 swapFree=4183188/4192956
[pid=2910] ppid=2908 vsize=319884 CPUtime=0
/proc/2910/stat : 2910 (ranov) R 2908 2910 1462 0 -1 4194304 884 0 0 0 0 0 0 0 20 0 1 0 338439892 327561216 869 18446744073709551615 134512640 134914624 4294956720 18446744073709551615 134528292 0 0 4096 0 0 0 0 17 1 0 0
/proc/2910/statm: 79971 876 30 98 0 79870 0

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

Child status: 255
Real time (s): 0.0314021
CPU time (s): 0.029995
CPU user time (s): 0.004999
CPU system time (s): 0.024996
CPU usage (%): 95.5192
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.004999
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= 4954
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= 8
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Tue Mar  6 12:39:00 UTC 2007

IDJOB= 331505
IDBENCH= 20589
IDSOLVER= 105
FILE ID= node75/331505-1173184723

PBS_JOBID= 4015251

Free space on /tmp= 66175 MiB

SOLVER NAME= ranov 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug3.cnf
COMMAND LINE= /tmp/evaluation/331505-1173184723/ranov /tmp/evaluation/331505-1173184723/instance-331505-1173184723.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-331505-1173184723 -o ROOT/results/node75/solver-331505-1173184723 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331505-1173184723/ranov /tmp/evaluation/331505-1173184723/instance-331505-1173184723.cnf            

META MD5SUM SOLVER= f62d3053d967228316972e47f5f50e74
MD5SUM BENCH=  dc050785d671b86f856b07b158553686

RANDOM SEED= 356145304

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.218
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		: 3000.218
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:       1332520 kB
Buffers:          7248 kB
Cached:         602736 kB
SwapCached:       3716 kB
Active:         464768 kB
Inactive:       192424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1332520 kB
SwapTotal:     4192956 kB
SwapFree:      4183188 kB
Dirty:          225556 kB
Writeback:           0 kB
Mapped:          53280 kB
Slab:            52000 kB
Committed_AS:   911112 kB
PageTables:       1548 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= 66175 MiB

End job on node75 on Tue Mar  6 12:39:01 UTC 2007