Trace number 1723721

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 1.90571 1.90637

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.89/1.90	c clasp version 1.2.0-SAT09 
1.89/1.90	c Reading from ...688382/instance-1723721-1240688382.cnf
1.89/1.90	c Reading      : Done(0.030s)
1.89/1.90	c Preprocessing: |-\Done(0.450s)
1.89/1.90	c Solving...
1.89/1.90	
1.89/1.90	c Models    : 0     
1.89/1.90	c Time         : 1.850s (Solve: 1.370s)
1.89/1.90	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-1723721-1240688382/watcher-1723721-1240688382 -o /tmp/evaluation-result-1723721-1240688382/solver-1723721-1240688382 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1723721-1240688382.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: 1.00 1.00 1.00 3/64 17076
/proc/meminfo: memFree=1123968/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=3576 CPUtime=0
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 534 0 0 0 0 0 0 0 18 0 1 0 96871751 3661824 475 1992294400 134512640 136057169 4294956144 18446744073709551615 134834619 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 894 479 140 377 0 514 0

[startup+0.016167 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 17076
/proc/meminfo: memFree=1123968/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=4388 CPUtime=0.01
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 896 0 0 0 1 0 0 0 18 0 1 0 96871751 4493312 837 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 1097 838 144 377 0 717 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4388

[startup+0.101164 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 17076
/proc/meminfo: memFree=1123968/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=9072 CPUtime=0.09
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 2331 0 0 0 9 0 0 0 18 0 1 0 96871751 9289728 1984 1992294400 134512640 136057169 4294956144 18446744073709551615 134776190 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 2268 1984 168 377 0 1888 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9072

[startup+0.301181 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 17076
/proc/meminfo: memFree=1123968/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=11048 CPUtime=0.29
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 2820 0 0 0 28 1 0 0 19 0 1 0 96871751 11313152 2473 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 2762 2473 170 377 0 2382 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11048

[startup+0.701218 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 17076
/proc/meminfo: memFree=1123968/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=10904 CPUtime=0.69
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 3180 0 0 0 68 1 0 0 22 0 1 0 96871751 11165696 2508 1992294400 134512640 136057169 4294956144 18446744073709551615 134618203 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 2726 2508 183 377 0 2346 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10904

[startup+1.50129 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 17077
/proc/meminfo: memFree=1114424/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=11044 CPUtime=1.49
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 3191 0 0 0 148 1 0 0 25 0 1 0 96871751 11309056 2519 1992294400 134512640 136057169 4294956144 18446744073709551615 134823823 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 2761 2519 183 377 0 2381 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11044

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

[startup+1.90133 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 17077
/proc/meminfo: memFree=1114424/2055920 swapFree=4148400/4192956
[pid=17076] ppid=17074 vsize=8356 CPUtime=1.89
/proc/17076/stat : 17076 (clasp) R 17074 17076 16694 0 -1 4194304 3203 0 0 0 188 1 0 0 25 0 1 0 96871751 8556544 1890 1992294400 134512640 136057169 4294956144 18446744073709551615 135433723 0 0 4096 16386 0 0 0 17 1 0 0
/proc/17076/statm: 2089 1890 187 377 0 1709 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 8356

Child status: 20
Real time (s): 1.90637
CPU time (s): 1.90571
CPU user time (s): 1.88871
CPU system time (s): 0.016997
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 11708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.88871
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3203
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= 4

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node14 at 2009-04-25 21:39:43
IDJOB=1723721
IDBENCH=71734
IDSOLVER=508
FILE ID=node14/1723721-1240688382
PBS_JOBID= 9186705
Free space on /tmp= 66296 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.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-1723721-1240688382/watcher-1723721-1240688382 -o /tmp/evaluation-result-1723721-1240688382/solver-1723721-1240688382 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1723721-1240688382.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= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=600629094

node14.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		: 3000.256
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		: 3000.256
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:       1124384 kB
Buffers:         65920 kB
Cached:         754632 kB
SwapCached:      38288 kB
Active:         166624 kB
Inactive:       694628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1124384 kB
SwapTotal:     4192956 kB
SwapFree:      4148400 kB
Dirty:            2928 kB
Writeback:           0 kB
Mapped:          13508 kB
Slab:            56224 kB
Committed_AS:   324624 kB
PageTables:       1448 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= 66296 MiB
End job on node14 at 2009-04-25 21:39:45