Trace number 1730331

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 1.99869 1.99952

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61375
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.89/1.99	c clasp version 1.2.0-SAT09 
1.89/1.99	c Reading from ...758369/instance-1730331-1240758369.cnf
1.89/1.99	c Reading      : Done(0.170s)
1.89/1.99	c Preprocessing: |-Done(1.610s)
1.89/1.99	
1.89/1.99	c Models    : 0     
1.89/1.99	c Time         : 1.780s (Solve: 0.000s)
1.89/1.99	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-1730331-1240758369/watcher-1730331-1240758369 -o /tmp/evaluation-result-1730331-1240758369/solver-1730331-1240758369 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1730331-1240758369.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: 0.86 1.03 1.00 3/64 13503
/proc/meminfo: memFree=899784/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=2740 CPUtime=0
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 565 0 0 0 0 0 0 0 18 0 1 0 103864512 2805760 371 1992294400 134512640 136057169 4294956160 18446744073709551615 134816709 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 685 374 139 377 0 305 0

[startup+0.0448801 s]
/proc/loadavg: 0.86 1.03 1.00 3/64 13503
/proc/meminfo: memFree=899784/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=10896 CPUtime=0.03
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 2723 0 0 0 3 0 0 0 18 0 1 0 103864512 11157504 2408 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 2724 2409 147 377 0 2344 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10896

[startup+0.101886 s]
/proc/loadavg: 0.86 1.03 1.00 3/64 13503
/proc/meminfo: memFree=899784/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=13740 CPUtime=0.09
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 3396 0 0 0 8 1 0 0 18 0 1 0 103864512 14069760 3081 1992294400 134512640 136057169 4294956160 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 3435 3081 147 377 0 3055 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13740

[startup+0.301908 s]
/proc/loadavg: 0.86 1.03 1.00 3/64 13503
/proc/meminfo: memFree=899784/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=23140 CPUtime=0.29
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 6588 0 0 0 27 2 0 0 19 0 1 0 103864512 23695360 5432 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 5785 5432 165 377 0 5405 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23140

[startup+0.701952 s]
/proc/loadavg: 0.86 1.03 1.00 3/64 13503
/proc/meminfo: memFree=899784/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=27068 CPUtime=0.69
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 7700 0 0 0 66 3 0 0 23 0 1 0 103864512 27717632 6408 1992294400 134512640 136057169 4294956160 18446744073709551615 135433706 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 6767 6408 165 377 0 6387 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27068

[startup+1.50104 s]
/proc/loadavg: 0.87 1.03 1.00 2/65 13504
/proc/meminfo: memFree=874624/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=28552 CPUtime=1.49
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 8034 0 0 0 145 4 0 0 25 0 1 0 103864512 29237248 6742 1992294400 134512640 136057169 4294956160 18446744073709551615 135459759 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 7138 6742 170 377 0 6758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28552

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

[startup+1.90109 s]
/proc/loadavg: 0.87 1.03 1.00 2/65 13504
/proc/meminfo: memFree=874624/2055920 swapFree=4192956/4192956
[pid=13503] ppid=13501 vsize=15808 CPUtime=1.89
/proc/13503/stat : 13503 (clasp) R 13501 13503 13466 0 -1 4194304 8246 0 0 0 185 4 0 0 25 0 1 0 103864512 16187392 3649 1992294400 134512640 136057169 4294956160 18446744073709551615 135433712 0 0 4096 16386 0 0 0 17 1 0 0
/proc/13503/statm: 3952 3649 176 377 0 3572 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15808

Child status: 20
Real time (s): 1.99952
CPU time (s): 1.99869
CPU user time (s): 1.9517
CPU system time (s): 0.046992
CPU usage (%): 99.9588
Max. virtual memory (cumulated for all children) (KiB): 28808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9517
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8246
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 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-26 17:06:09
IDJOB=1730331
IDBENCH=24728
IDSOLVER=508
FILE ID=node62/1730331-1240758369
PBS_JOBID= 9187138
Free space on /tmp= 66372 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.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-1730331-1240758369/watcher-1730331-1240758369 -o /tmp/evaluation-result-1730331-1240758369/solver-1730331-1240758369 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1730331-1240758369.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= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1127207576

node62.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		: 3000.220
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		: 3000.220
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:        900200 kB
Buffers:         92328 kB
Cached:         954192 kB
SwapCached:          0 kB
Active:         278004 kB
Inactive:       783828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        900200 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            6792 kB
Writeback:           0 kB
Mapped:          25092 kB
Slab:            79672 kB
Committed_AS:   225120 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66368 MiB
End job on node62 at 2009-04-26 17:06:12