Trace number 1831659

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
clasp 1.2.0-SAT09-32UNSAT 2.97355 2.97445

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.97355
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.89/2.97	c clasp version 1.2.0-SAT09 
2.89/2.97	c Reading from ...774970/instance-1831659-1242774970.cnf
2.89/2.97	c Reading      : Done(0.020s)
2.89/2.97	c Preprocessing: |-\|Done(0.580s)
2.89/2.97	c Solving...
2.89/2.97	
2.89/2.97	c Models    : 0     
2.89/2.97	c Time         : 2.950s (Solve: 2.350s)
2.89/2.97	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1831659-1242774970/watcher-1831659-1242774970 -o /tmp/evaluation-result-1831659-1242774970/solver-1831659-1242774970 -C 10000 -W 12000 -M 1800 HOME/clasp --file=HOME/instance-1831659-1242774970.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 13605
/proc/meminfo: memFree=1847464/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=3036 CPUtime=0
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 538 0 0 0 0 0 0 0 18 0 1 0 305524519 3108864 515 1992294400 134512640 136057169 4294956160 18446744073709551615 134766992 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 759 515 144 377 0 379 0

[startup+0.0908711 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 13605
/proc/meminfo: memFree=1847464/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=7016 CPUtime=0.08
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 1640 0 0 0 8 0 0 0 18 0 1 0 305524519 7184384 1463 1992294400 134512640 136057169 4294956160 18446744073709551615 135443063 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 1754 1464 170 377 0 1374 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7016

[startup+0.101872 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 13605
/proc/meminfo: memFree=1847464/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=7148 CPUtime=0.09
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 1696 0 0 0 9 0 0 0 18 0 1 0 305524519 7319552 1519 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 1787 1519 170 377 0 1407 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7148

[startup+0.301884 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 13605
/proc/meminfo: memFree=1847464/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=9724 CPUtime=0.29
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2347 0 0 0 28 1 0 0 19 0 1 0 305524519 9957376 2170 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2431 2170 170 377 0 2051 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9724

[startup+0.701911 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 13605
/proc/meminfo: memFree=1847464/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=9992 CPUtime=0.69
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2624 0 0 0 68 1 0 0 24 0 1 0 305524519 10231808 2244 1992294400 134512640 136057169 4294956160 18446744073709551615 134618413 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2498 2244 183 377 0 2118 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9992

[startup+1.50196 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 13606
/proc/meminfo: memFree=1839008/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=9992 CPUtime=1.49
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2635 0 0 0 148 1 0 0 25 0 1 0 305524519 10231808 2255 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2498 2255 183 377 0 2118 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9992

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

[startup+2.30202 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 13606
/proc/meminfo: memFree=1838816/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=10388 CPUtime=2.29
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2734 0 0 0 228 1 0 0 25 0 1 0 305524519 10637312 2354 1992294400 134512640 136057169 4294956160 18446744073709551615 134649326 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2597 2354 183 377 0 2217 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 10388

[startup+2.70104 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 13606
/proc/meminfo: memFree=1838816/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=10520 CPUtime=2.69
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2757 0 0 0 268 1 0 0 25 0 1 0 305524519 10772480 2377 1992294400 134512640 136057169 4294956160 18446744073709551615 134645282 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2630 2377 183 377 0 2250 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 10520

[startup+2.90106 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 13606
/proc/meminfo: memFree=1838816/2055920 swapFree=4180408/4192956
[pid=13605] ppid=13603 vsize=10520 CPUtime=2.89
/proc/13605/stat : 13605 (clasp) R 13603 13605 13568 0 -1 4194304 2757 0 0 0 288 1 0 0 25 0 1 0 305524519 10772480 2377 1992294400 134512640 136057169 4294956160 18446744073709551615 135459153 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13605/statm: 2630 2377 183 377 0 2250 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 10520

Child status: 20
Real time (s): 2.97445
CPU time (s): 2.97355
CPU user time (s): 2.95855
CPU system time (s): 0.014997
CPU usage (%): 99.9698
Max. virtual memory (cumulated for all children) (KiB): 10936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.95855
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2761
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= 7

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node52 at 2009-05-20 01:16:10
IDJOB=1831659
IDBENCH=70803
IDSOLVER=637
FILE ID=node52/1831659-1242774970
PBS_JOBID= 9322339
Free space on /tmp= 66140 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1831659-1242774970/watcher-1831659-1242774970 -o /tmp/evaluation-result-1831659-1242774970/solver-1831659-1242774970 -C 10000 -W 12000 -M 1800  HOME/clasp --file=HOME/instance-1831659-1242774970.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=564477609

node52.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		: 3000.214
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		: 3000.214
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:       1847880 kB
Buffers:         19304 kB
Cached:         151536 kB
SwapCached:       7048 kB
Active:          28244 kB
Inactive:       152176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1847880 kB
SwapTotal:     4192956 kB
SwapFree:      4180408 kB
Dirty:            2712 kB
Writeback:           0 kB
Mapped:          13336 kB
Slab:            13504 kB
Committed_AS:  1139324 kB
PageTables:       1480 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= 66140 MiB
End job on node52 at 2009-05-20 01:16:13