Trace number 1553779

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 11.7912 11.7945

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor032.cnf
MD5SUM25c7914ccc82f6f574febbd03924feed
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.93994
Satisfiable
(Un)Satisfiability was proved
Number of variables16239
Number of clauses48332
Sum of the clauses size112772
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 232220
Number of clauses of size 316110
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

11.69/11.79	c clasp version 1.2.0-SAT09 
11.69/11.79	c Reading from ...718488/instance-1553779-1238718488.cnf
11.69/11.79	c Reading      : Done(0.020s)
11.69/11.79	c Preprocessing: |-\Done(0.240s)
11.69/11.79	c Solving...
11.69/11.79	
11.69/11.79	c Models    : 0     
11.69/11.79	c Time         : 11.760s (Solve: 11.500s)
11.69/11.79	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-1553779-1238718488/watcher-1553779-1238718488 -o /tmp/evaluation-result-1553779-1238718488/solver-1553779-1238718488 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1553779-1238718488.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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: 1.03 0.97 0.99 3/81 8242
/proc/meminfo: memFree=1824472/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=3300 CPUtime=0
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 576 0 0 0 0 0 0 0 20 0 1 0 1144512751 3379200 552 1992294400 134512640 136057169 4294956144 18446744073709551615 135443063 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 825 552 144 377 0 445 0

[startup+0.062575 s]
/proc/loadavg: 1.03 0.97 0.99 3/81 8242
/proc/meminfo: memFree=1824472/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=6552 CPUtime=0.05
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 1567 0 0 0 5 0 0 0 20 0 1 0 1144512751 6709248 1376 1992294400 134512640 136057169 4294956144 18446744073709551615 134774007 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 1638 1376 168 377 0 1258 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6552

[startup+0.101579 s]
/proc/loadavg: 1.03 0.97 0.99 3/81 8242
/proc/meminfo: memFree=1824472/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=7344 CPUtime=0.09
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 1756 0 0 0 8 1 0 0 20 0 1 0 1144512751 7520256 1565 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 1836 1566 170 377 0 1456 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7344

[startup+0.301601 s]
/proc/loadavg: 1.03 0.97 0.99 3/81 8242
/proc/meminfo: memFree=1824472/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=8224 CPUtime=0.29
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2241 0 0 0 28 1 0 0 22 0 1 0 1144512751 8421376 1827 1992294400 134512640 136057169 4294956144 18446744073709551615 135433689 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2056 1827 179 377 0 1676 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8224

[startup+0.701646 s]
/proc/loadavg: 1.03 0.97 0.99 3/81 8242
/proc/meminfo: memFree=1824472/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=8224 CPUtime=0.69
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2245 0 0 0 68 1 0 0 25 0 1 0 1144512751 8421376 1831 1992294400 134512640 136057169 4294956144 18446744073709551615 134823406 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2056 1831 183 377 0 1676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8224

[startup+1.50174 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1817552/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=8488 CPUtime=1.49
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2321 0 0 0 148 1 0 0 25 0 1 0 1144512751 8691712 1907 1992294400 134512640 136057169 4294956144 18446744073709551615 134823325 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2122 1907 183 377 0 1742 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8488

[startup+3.10192 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1816912/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=9172 CPUtime=3.09
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2490 0 0 0 308 1 0 0 25 0 1 0 1144512751 9392128 2076 1992294400 134512640 136057169 4294956144 18446744073709551615 134823876 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2293 2076 183 377 0 1913 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9172

[startup+6.30128 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1815376/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=10360 CPUtime=6.29
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2793 0 0 0 628 1 0 0 25 0 1 0 1144512751 10608640 2379 1992294400 134512640 136057169 4294956144 18446744073709551615 134828284 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2590 2379 183 377 0 2210 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10360

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

[startup+9.50164 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1815376/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=10360 CPUtime=9.49
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2794 0 0 0 948 1 0 0 25 0 1 0 1144512751 10608640 2380 1992294400 134512640 136057169 4294956144 18446744073709551615 134618173 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2590 2380 183 377 0 2210 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 10360

[startup+11.1018 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1815248/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=10520 CPUtime=11.09
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2801 0 0 0 1108 1 0 0 25 0 1 0 1144512751 10772480 2387 1992294400 134512640 136057169 4294956144 18446744073709551615 134823846 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2630 2387 183 377 0 2250 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 10520

[startup+11.5019 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1815248/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=10520 CPUtime=11.49
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2801 0 0 0 1148 1 0 0 25 0 1 0 1144512751 10772480 2387 1992294400 134512640 136057169 4294956144 18446744073709551615 134823366 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2630 2387 183 377 0 2250 0
Current children cumulated CPU time (s) 11.49
Current children cumulated vsize (KiB) 10520

[startup+11.7019 s]
/proc/loadavg: 1.03 0.97 0.99 2/82 8243
/proc/meminfo: memFree=1815248/2055920 swapFree=4172240/4192956
[pid=8242] ppid=8240 vsize=10520 CPUtime=11.69
/proc/8242/stat : 8242 (clasp) R 8240 8242 7640 0 -1 4194304 2801 0 0 0 1168 1 0 0 25 0 1 0 1144512751 10772480 2387 1992294400 134512640 136057169 4294956144 18446744073709551615 134615628 0 0 4096 16386 0 0 0 17 1 0 0
/proc/8242/statm: 2630 2387 183 377 0 2250 0
Current children cumulated CPU time (s) 11.69
Current children cumulated vsize (KiB) 10520

Child status: 20
Real time (s): 11.7945
CPU time (s): 11.7912
CPU user time (s): 11.7712
CPU system time (s): 0.019996
CPU usage (%): 99.9723
Max. virtual memory (cumulated for all children) (KiB): 10520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.7712
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2805
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= 17

runsolver used 0.019996 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node85 at 2009-04-03 02:28:09
IDJOB=1553779
IDBENCH=70768
IDSOLVER=508
FILE ID=node85/1553779-1238718488
PBS_JOBID= 9085274
Free space on /tmp= 126872 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.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-1553779-1238718488/watcher-1553779-1238718488 -o /tmp/evaluation-result-1553779-1238718488/solver-1553779-1238718488 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1553779-1238718488.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=726000674

node85.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1824888 kB
Buffers:         39268 kB
Cached:         125552 kB
SwapCached:       9940 kB
Active:          22844 kB
Inactive:       153404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1824888 kB
SwapTotal:     4192956 kB
SwapFree:      4172240 kB
Dirty:            2744 kB
Writeback:           0 kB
Mapped:          16992 kB
Slab:            39004 kB
Committed_AS:  2679516 kB
PageTables:       2596 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= 126868 MiB
End job on node85 at 2009-04-03 02:28:20