Trace number 1831619

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 9.1966 9.20005

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.37073
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

9.09/9.19	c clasp version 1.2.0-SAT09 
9.09/9.19	c Reading from ...774664/instance-1831619-1242774664.cnf
9.09/9.19	c Reading      : Done(0.010s)
9.09/9.19	c Preprocessing: |-\|Done(0.240s)
9.09/9.19	c Solving...
9.09/9.19	
9.09/9.19	c Models    : 0     
9.09/9.19	c Time         : 9.170s (Solve: 8.920s)
9.09/9.19	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-1831619-1242774664/watcher-1831619-1242774664 -o /tmp/evaluation-result-1831619-1242774664/solver-1831619-1242774664 -C 10000 -W 12000 -M 1800 HOME/clasp --file=HOME/instance-1831619-1242774664.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: 0.97 0.96 0.98 3/64 6052
/proc/meminfo: memFree=1962856/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=2748 CPUtime=0
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 437 0 0 0 0 0 0 0 18 0 1 0 305501140 2813952 421 1992294400 134512640 136057169 4294956160 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 687 422 144 377 0 307 0

[startup+0.033391 s]
/proc/loadavg: 0.97 0.96 0.98 3/64 6052
/proc/meminfo: memFree=1962856/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=4668 CPUtime=0.02
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 1015 0 0 0 2 0 0 0 18 0 1 0 305501140 4780032 915 1992294400 134512640 136057169 4294956160 18446744073709551615 135440768 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 1167 915 165 377 0 787 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4668

[startup+0.101404 s]
/proc/loadavg: 0.97 0.96 0.98 3/64 6052
/proc/meminfo: memFree=1962856/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=6020 CPUtime=0.09
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 1359 0 0 0 9 0 0 0 18 0 1 0 305501140 6164480 1259 1992294400 134512640 136057169 4294956160 18446744073709551615 134778199 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 1505 1259 170 377 0 1125 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6020

[startup+0.301444 s]
/proc/loadavg: 0.97 0.96 0.98 3/64 6052
/proc/meminfo: memFree=1962856/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=6892 CPUtime=0.29
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 1737 0 0 0 28 1 0 0 19 0 1 0 305501140 7057408 1485 1992294400 134512640 136057169 4294956160 18446744073709551615 134651361 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 1723 1485 183 377 0 1343 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6892

[startup+0.701523 s]
/proc/loadavg: 0.97 0.96 0.98 3/64 6052
/proc/meminfo: memFree=1962856/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=7420 CPUtime=0.69
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 1885 0 0 0 68 1 0 0 22 0 1 0 305501140 7598080 1633 1992294400 134512640 136057169 4294956160 18446744073709551615 134624568 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 1855 1633 183 377 0 1475 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7420

[startup+1.50168 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1956704/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=7948 CPUtime=1.49
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2024 0 0 0 148 1 0 0 25 0 1 0 305501140 8138752 1772 1992294400 134512640 136057169 4294956160 18446744073709551615 134645293 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 1987 1772 183 377 0 1607 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7948

[startup+3.102 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1956064/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=8344 CPUtime=3.09
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2118 0 0 0 308 1 0 0 25 0 1 0 305501140 8544256 1866 1992294400 134512640 136057169 4294956160 18446744073709551615 134831620 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 2086 1866 183 377 0 1706 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8344

[startup+6.30163 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1955232/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=10060 CPUtime=6.29
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2556 0 0 0 628 1 0 0 25 0 1 0 305501140 10301440 2304 1992294400 134512640 136057169 4294956160 18446744073709551615 134613015 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 2515 2304 183 377 0 2135 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10060

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

[startup+7.90195 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1954088/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=10060 CPUtime=7.89
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2557 0 0 0 788 1 0 0 25 0 1 0 305501140 10301440 2305 1992294400 134512640 136057169 4294956160 18446744073709551615 134618440 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 2515 2305 183 377 0 2135 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 10060

[startup+8.70111 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1954088/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=10060 CPUtime=8.69
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2557 0 0 0 868 1 0 0 25 0 1 0 305501140 10301440 2305 1992294400 134512640 136057169 4294956160 18446744073709551615 134828324 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 2515 2305 183 377 0 2135 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 10060

[startup+9.10119 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 6053
/proc/meminfo: memFree=1954088/2055920 swapFree=4180760/4192956
[pid=6052] ppid=6050 vsize=10060 CPUtime=9.09
/proc/6052/stat : 6052 (clasp) R 6050 6052 5988 0 -1 4194304 2557 0 0 0 908 1 0 0 25 0 1 0 305501140 10301440 2305 1992294400 134512640 136057169 4294956160 18446744073709551615 134828387 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6052/statm: 2515 2305 183 377 0 2135 0
Current children cumulated CPU time (s) 9.09
Current children cumulated vsize (KiB) 10060

Child status: 20
Real time (s): 9.20005
CPU time (s): 9.1966
CPU user time (s): 9.1776
CPU system time (s): 0.018997
CPU usage (%): 99.9626
Max. virtual memory (cumulated for all children) (KiB): 10060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.1776
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= 2561
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= 24

runsolver used 0.008998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node1 at 2009-05-20 01:11:04
IDJOB=1831619
IDBENCH=70759
IDSOLVER=637
FILE ID=node1/1831619-1242774664
PBS_JOBID= 9322319
Free space on /tmp= 66312 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.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-1831619-1242774664/watcher-1831619-1242774664 -o /tmp/evaluation-result-1831619-1242774664/solver-1831619-1242774664 -C 10000 -W 12000 -M 1800  HOME/clasp --file=HOME/instance-1831619-1242774664.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= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=1277872380

node1.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1963272 kB
Buffers:         13972 kB
Cached:          43548 kB
SwapCached:       6604 kB
Active:          27816 kB
Inactive:        38296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1963272 kB
SwapTotal:     4192956 kB
SwapFree:      4180760 kB
Dirty:            2300 kB
Writeback:           0 kB
Mapped:          13652 kB
Slab:            12464 kB
Committed_AS:  1074296 kB
PageTables:       1440 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= 66308 MiB
End job on node1 at 2009-05-20 01:11:14