Trace number 1555599

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 2.81857 2.82065

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 benchmark2.81857
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 

2.79/2.82	c clasp version 1.2.0-SAT09 
2.79/2.82	c Reading from ...742039/instance-1555599-1238742039.cnf
2.79/2.82	c Reading      : Done(0.020s)
2.79/2.82	c Preprocessing: |-\|Done(0.540s)
2.79/2.82	c Solving...
2.79/2.82	
2.79/2.82	c Models    : 0     
2.79/2.82	c Time         : 2.790s (Solve: 2.230s)
2.79/2.82	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-1555599-1238742039/watcher-1555599-1238742039 -o /tmp/evaluation-result-1555599-1238742039/solver-1555599-1238742039 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1555599-1238742039.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: 1.46 1.12 1.04 3/73 31076
/proc/meminfo: memFree=1761728/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=3036 CPUtime=0
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 538 0 0 0 0 0 0 0 20 0 1 0 1026622492 3108864 515 1992294400 134512640 136057169 4294956160 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 759 515 144 377 0 379 0

[startup+0.0566239 s]
/proc/loadavg: 1.46 1.12 1.04 3/73 31076
/proc/meminfo: memFree=1761728/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=6224 CPUtime=0.05
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 1458 0 0 0 5 0 0 0 20 0 1 0 1026622492 6373376 1281 1992294400 134512640 136057169 4294956160 18446744073709551615 134768475 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 1556 1281 170 377 0 1176 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6224

[startup+0.101629 s]
/proc/loadavg: 1.46 1.12 1.04 3/73 31076
/proc/meminfo: memFree=1761728/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=7280 CPUtime=0.09
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 1717 0 0 0 9 0 0 0 20 0 1 0 1026622492 7454720 1540 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 1820 1540 170 377 0 1440 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7280

[startup+0.301648 s]
/proc/loadavg: 1.46 1.12 1.04 3/73 31076
/proc/meminfo: memFree=1761728/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=9856 CPUtime=0.29
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2374 0 0 0 29 0 0 0 22 0 1 0 1026622492 10092544 2197 1992294400 134512640 136057169 4294956160 18446744073709551615 135480624 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2464 2197 170 377 0 2084 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9856

[startup+0.701689 s]
/proc/loadavg: 1.46 1.12 1.04 3/73 31076
/proc/meminfo: memFree=1761728/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=9992 CPUtime=0.69
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2624 0 0 0 69 0 0 0 25 0 1 0 1026622492 10231808 2244 1992294400 134512640 136057169 4294956160 18446744073709551615 134624571 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2498 2244 183 377 0 2118 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9992

[startup+1.50177 s]
/proc/loadavg: 1.46 1.12 1.04 2/74 31077
/proc/meminfo: memFree=1753208/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=10124 CPUtime=1.49
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2667 0 0 0 149 0 0 0 25 0 1 0 1026622492 10366976 2287 1992294400 134512640 136057169 4294956160 18446744073709551615 134823846 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2531 2287 183 377 0 2151 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10124

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

[startup+2.30186 s]
/proc/loadavg: 1.42 1.12 1.04 2/74 31077
/proc/meminfo: memFree=1752952/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=10520 CPUtime=2.29
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2757 0 0 0 229 0 0 0 25 0 1 0 1026622492 10772480 2377 1992294400 134512640 136057169 4294956160 18446744073709551615 134615626 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2630 2377 183 377 0 2250 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 10520

[startup+2.7019 s]
/proc/loadavg: 1.42 1.12 1.04 2/74 31077
/proc/meminfo: memFree=1752952/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=10520 CPUtime=2.69
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2757 0 0 0 269 0 0 0 25 0 1 0 1026622492 10772480 2377 1992294400 134512640 136057169 4294956160 18446744073709551615 134812866 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2630 2377 183 377 0 2250 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 10520

[startup+2.80191 s]
/proc/loadavg: 1.42 1.12 1.04 2/74 31077
/proc/meminfo: memFree=1752952/2055920 swapFree=4172928/4192956
[pid=31076] ppid=31074 vsize=10520 CPUtime=2.79
/proc/31076/stat : 31076 (clasp) R 31074 31076 30802 0 -1 4194304 2760 0 0 0 279 0 0 0 25 0 1 0 1026622492 10772480 2380 1992294400 134512640 136057169 4294956160 18446744073709551615 135502615 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31076/statm: 2630 2380 186 377 0 2250 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 10520

Child status: 20
Real time (s): 2.82065
CPU time (s): 2.81857
CPU user time (s): 2.81257
CPU system time (s): 0.005999
CPU usage (%): 99.9263
Max. virtual memory (cumulated for all children) (KiB): 10520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.81257
system time used= 0.005999
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= 5

runsolver used 0.009998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-03 09:00:39
IDJOB=1555599
IDBENCH=70803
IDSOLVER=508
FILE ID=node79/1555599-1238742039
PBS_JOBID= 9085385
Free space on /tmp= 66540 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-1555599-1238742039/watcher-1555599-1238742039 -o /tmp/evaluation-result-1555599-1238742039/solver-1555599-1238742039 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1555599-1238742039.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= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=574215198

node79.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		: 3000.232
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		: 3000.232
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:       1762144 kB
Buffers:         25648 kB
Cached:         180788 kB
SwapCached:      11708 kB
Active:          24944 kB
Inactive:       194844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1762144 kB
SwapTotal:     4192956 kB
SwapFree:      4172928 kB
Dirty:            2712 kB
Writeback:           0 kB
Mapped:          19488 kB
Slab:            59068 kB
Committed_AS:  2981356 kB
PageTables:       2004 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= 66540 MiB
End job on node79 at 2009-04-03 09:00:42