Trace number 1723781

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
iPAWS 2009-03-22? 0.711891 0.712352

General information on the benchmark

Namevelev-vliw-uns-4.0-9C1.cnf
MD5SUM0c9a15d0f561e9d1bb438b04ae3c31af
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark324.148
Satisfiable
(Un)Satisfiability was proved
Number of variables96177
Number of clauses1814189
Sum of the clauses size5280501
Maximum clause length2216
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 21178665
Number of clauses of size 3560157
Number of clauses of size 45491
Number of clauses of size 54739
Number of clauses of size over 565136

Solver Data 

0.69/0.71	s UNKNOWN
0.69/0.71	c Clause too long

Verifier Data 

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

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1723781-1240688854/watcher-1723781-1240688854 -o /tmp/evaluation-result-1723781-1240688854/solver-1723781-1240688854 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1723781-1240688854.cnf 411843222 

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 3/64 22198
/proc/meminfo: memFree=1670336/2055920 swapFree=4181324/4192956
[pid=22198] ppid=22196 vsize=335916 CPUtime=0
/proc/22198/stat : 22198 (iPAWS) R 22196 22198 21750 0 -1 4194304 485 0 0 0 0 0 0 0 18 0 1 0 96918864 343977984 469 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/22198/statm: 83979 469 54 146 0 83831 0

[startup+0.016794 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22198
/proc/meminfo: memFree=1670336/2055920 swapFree=4181324/4192956
[pid=22198] ppid=22196 vsize=335916 CPUtime=0.01
/proc/22198/stat : 22198 (iPAWS) R 22196 22198 21750 0 -1 4194304 528 0 0 0 1 0 0 0 18 0 1 0 96918864 343977984 512 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/22198/statm: 83979 512 54 146 0 83831 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 335916

[startup+0.101804 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22198
/proc/meminfo: memFree=1670336/2055920 swapFree=4181324/4192956
[pid=22198] ppid=22196 vsize=335916 CPUtime=0.09
/proc/22198/stat : 22198 (iPAWS) R 22196 22198 21750 0 -1 4194304 827 0 0 0 9 0 0 0 18 0 1 0 96918864 343977984 811 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/22198/statm: 83979 812 54 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301825 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22198
/proc/meminfo: memFree=1670336/2055920 swapFree=4181324/4192956
[pid=22198] ppid=22196 vsize=335916 CPUtime=0.29
/proc/22198/stat : 22198 (iPAWS) R 22196 22198 21750 0 -1 4194304 1499 0 0 0 29 0 0 0 19 0 1 0 96918864 343977984 1483 1992294400 134512640 135114423 4294956208 18446744073709551615 134533148 0 0 4096 0 0 0 0 17 1 0 0
/proc/22198/statm: 83979 1483 54 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701867 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22198
/proc/meminfo: memFree=1670336/2055920 swapFree=4181324/4192956
[pid=22198] ppid=22196 vsize=335916 CPUtime=0.69
/proc/22198/stat : 22198 (iPAWS) R 22196 22198 21750 0 -1 4194304 2829 0 0 0 68 1 0 0 22 0 1 0 96918864 343977984 2813 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/22198/statm: 83979 2813 54 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

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

Child status: 255
Real time (s): 0.712352
CPU time (s): 0.711891
CPU user time (s): 0.692894
CPU system time (s): 0.018997
CPU usage (%): 99.9353
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.692894
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2859
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 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node19 at 2009-04-25 21:47:36
IDJOB=1723781
IDBENCH=71736
IDSOLVER=516
FILE ID=node19/1723781-1240688854
PBS_JOBID= 9186699
Free space on /tmp= 66208 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT_RACE06/velev-vliw-uns-4.0-9C1.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723781-1240688854/watcher-1723781-1240688854 -o /tmp/evaluation-result-1723781-1240688854/solver-1723781-1240688854 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1723781-1240688854.cnf 411843222

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

MD5SUM BENCH= 0c9a15d0f561e9d1bb438b04ae3c31af
RANDOM SEED=411843222

node19.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1670816 kB
Buffers:         50848 kB
Cached:         258364 kB
SwapCached:       5424 kB
Active:         120652 kB
Inactive:       196424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670816 kB
SwapTotal:     4192956 kB
SwapFree:      4181324 kB
Dirty:           36480 kB
Writeback:           0 kB
Mapped:          13516 kB
Slab:            53968 kB
Committed_AS:   341496 kB
PageTables:       1452 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= 66204 MiB
End job on node19 at 2009-04-25 21:47:37