Trace number 367679

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
MXC 2007-02-08UNSAT 0.231963 0.246991

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc965.cnf
MD5SUM867a6f6420a887007f0529947c09f327
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.231963
Satisfiable
(Un)Satisfiability was proved
Number of variables115769
Number of clauses338946
Sum of the clauses size884379
Maximum clause length3
Minimum clause length1
Number of clauses of size 17057
Number of clauses of size 2118345
Number of clauses of size 3213544
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.19/0.24	c MXC attempting /tmp/evaluation/367679-1177551536/instance-367679-1177551536.cnf
0.19/0.24	c 0.220s elapsed
0.19/0.24	c restarts: 0
0.19/0.24	c decisions: 0
0.19/0.24	c propagations: 17311
0.19/0.24	c conflicts: 0
0.19/0.24	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node23/watcher-367679-1177551536 -o ROOT/results/node23/solver-367679-1177551536 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367679-1177551536/mxc /tmp/evaluation/367679-1177551536/instance-367679-1177551536.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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 0.99 0.91 3/77 7078
/proc/meminfo: memFree=1724608/2055920 swapFree=4169168/4192956
[pid=7078] ppid=7076 vsize=7172 CPUtime=0
/proc/7078/stat : 7078 (mxc) R 7076 7078 6678 0 -1 4194304 765 0 0 0 0 0 0 0 18 0 1 0 203070744 7344128 750 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/7078/statm: 1793 756 42 122 0 1667 0

[startup+0.0397601 s]
/proc/loadavg: 1.00 0.99 0.91 3/77 7078
/proc/meminfo: memFree=1724608/2055920 swapFree=4169168/4192956
[pid=7078] ppid=7076 vsize=20292 CPUtime=0.03
/proc/7078/stat : 7078 (mxc) R 7076 7078 6678 0 -1 4194304 4379 0 0 0 1 2 0 0 18 0 1 0 203070744 20779008 4364 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/7078/statm: 5106 4365 46 122 0 4980 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 20292

[startup+0.101765 s]
/proc/loadavg: 1.00 0.99 0.91 3/77 7078
/proc/meminfo: memFree=1724608/2055920 swapFree=4169168/4192956
[pid=7078] ppid=7076 vsize=23976 CPUtime=0.09
/proc/7078/stat : 7078 (mxc) R 7076 7078 6678 0 -1 4194304 5255 0 0 0 7 2 0 0 18 0 1 0 203070744 24551424 5240 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/7078/statm: 5994 5241 46 122 0 5868 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 23976

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

[startup+0.201785 s]
/proc/loadavg: 1.00 0.99 0.91 3/77 7078
/proc/meminfo: memFree=1724608/2055920 swapFree=4169168/4192956
[pid=7078] ppid=7076 vsize=29780 CPUtime=0.19
/proc/7078/stat : 7078 (mxc) R 7076 7078 6678 0 -1 4194304 6682 0 0 0 17 2 0 0 18 0 1 0 203070744 30494720 6667 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/7078/statm: 7445 6667 46 122 0 7319 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 29780

Child status: 20
Real time (s): 0.246991
CPU time (s): 0.231963
CPU user time (s): 0.197969
CPU system time (s): 0.033994
CPU usage (%): 93.9156
Max. virtual memory (cumulated for all children) (KiB): 29780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.197969
system time used= 0.033994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6982
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= 9
involuntary context switches= 4

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Thu Apr 26 01:38:56 UTC 2007

IDJOB= 367679
IDBENCH= 20513
IDSOLVER= 174
FILE ID= node23/367679-1177551536

PBS_JOBID= 4696563

Free space on /tmp= 66468 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc965.cnf
COMMAND LINE= /tmp/evaluation/367679-1177551536/mxc /tmp/evaluation/367679-1177551536/instance-367679-1177551536.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-367679-1177551536 -o ROOT/results/node23/solver-367679-1177551536 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367679-1177551536/mxc /tmp/evaluation/367679-1177551536/instance-367679-1177551536.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  867a6f6420a887007f0529947c09f327

RANDOM SEED= 820908051

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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		: 3000.276
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		: 3000.276
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:       1725016 kB
Buffers:         39028 kB
Cached:         212696 kB
SwapCached:       3208 kB
Active:         183308 kB
Inactive:        92164 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1725016 kB
SwapTotal:     4192956 kB
SwapFree:      4169168 kB
Dirty:            6848 kB
Writeback:           0 kB
Mapped:          30764 kB
Slab:            40932 kB
Committed_AS:  2854280 kB
PageTables:       1796 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= 66468 MiB

End job on node23 on Thu Apr 26 01:38:57 UTC 2007