Trace number 3274749

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
SAT09 reference solver: clasp 1.2.0-SAT09-32UNSAT 0.488924 0.489903

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.39/0.48	c clasp version 1.2.0-SAT09 
0.39/0.48	c Reading from ...609925/instance-3274749-1303609925.cnf
0.39/0.48	c Reading      : Done(0.060s)
0.39/0.48	c Preprocessing: |-Done(0.380s)
0.39/0.48	
0.39/0.48	c Models    : 0     
0.39/0.48	c Time         : 0.440s (Solve: 0.000s)
0.39/0.48	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3274749-1303609925/watcher-3274749-1303609925 -o /tmp/evaluation-result-3274749-1303609925/solver-3274749-1303609925 -C 2400 -W 1300 -M 7680 HOME/clasp --file=HOME/instance-3274749-1303609925.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.85 1.21 1.82 4/181 21717
/proc/meminfo: memFree=11787140/32950928 swapFree=67111528/67111528
[pid=21717] ppid=21715 vsize=6820 CPUtime=0 cores=0,2
/proc/21717/stat : 21717 (clasp) R 21715 21717 20385 0 -1 4202496 1177 0 0 0 0 0 0 0 20 0 1 0 551223220 6983680 832 33554432000 134512640 136057169 4291456384 18446744073709551615 134834619 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/21717/statm: 1705 832 141 378 0 1325 0

[startup+0.0270801 s]
/proc/loadavg: 0.85 1.21 1.82 4/181 21717
/proc/meminfo: memFree=11787140/32950928 swapFree=67111528/67111528
[pid=21717] ppid=21715 vsize=9036 CPUtime=0.02 cores=0,2
/proc/21717/stat : 21717 (clasp) R 21715 21717 20385 0 -1 4202496 2229 0 0 0 2 0 0 0 20 0 1 0 551223220 9252864 1884 33554432000 134512640 136057169 4291456384 18446744073709551615 134767168 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/21717/statm: 2259 1885 145 378 0 1879 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 9036

[startup+0.101079 s]
/proc/loadavg: 0.85 1.21 1.82 4/181 21717
/proc/meminfo: memFree=11787140/32950928 swapFree=67111528/67111528
[pid=21717] ppid=21715 vsize=17236 CPUtime=0.09 cores=0,2
/proc/21717/stat : 21717 (clasp) R 21715 21717 20385 0 -1 4202496 4749 0 0 0 9 0 0 0 20 0 1 0 551223220 17649664 3914 33554432000 134512640 136057169 4291456384 18446744073709551615 134771641 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/21717/statm: 4309 3915 165 378 0 3929 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17236

[startup+0.301035 s]
/proc/loadavg: 0.85 1.21 1.82 4/181 21717
/proc/meminfo: memFree=11787140/32950928 swapFree=67111528/67111528
[pid=21717] ppid=21715 vsize=20136 CPUtime=0.29 cores=0,2
/proc/21717/stat : 21717 (clasp) R 21715 21717 20385 0 -1 4202496 5456 0 0 0 29 0 0 0 21 0 1 0 551223220 20619264 4621 33554432000 134512640 136057169 4291456384 18446744073709551615 134768461 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/21717/statm: 5034 4621 170 378 0 4654 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 20136

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

[startup+0.401024 s]
/proc/loadavg: 0.85 1.21 1.82 4/181 21717
/proc/meminfo: memFree=11787140/32950928 swapFree=67111528/67111528
[pid=21717] ppid=21715 vsize=21216 CPUtime=0.39 cores=0,2
/proc/21717/stat : 21717 (clasp) R 21715 21717 20385 0 -1 4202496 5693 0 0 0 39 0 0 0 21 0 1 0 551223220 21725184 4858 33554432000 134512640 136057169 4291456384 18446744073709551615 134772080 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/21717/statm: 5304 4858 170 378 0 4924 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 21216

Child status: 20
Real time (s): 0.489903
CPU time (s): 0.488924
CPU user time (s): 0.481926
CPU system time (s): 0.006998
CPU usage (%): 99.8002
Max. virtual memory (cumulated for all children) (KiB): 21216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.481926
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5728
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 0.003999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node112 at 2011-04-24 03:52:06
IDJOB=3274749
IDBENCH=85572
IDSOLVER=1674
FILE ID=node112/3274749-1303609925
RUNJOBID= node112-1303609925-21691
PBS_JOBID= 13150584
Free space on /tmp= 72572 MiB

SOLVER NAME= SAT09 reference solver: clasp 1.2.0-SAT09-32
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.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-3274749-1303609925/watcher-3274749-1303609925 -o /tmp/evaluation-result-3274749-1303609925/solver-3274749-1303609925 -C 2400 -W 1300 -M 7680  HOME/clasp --file=HOME/instance-3274749-1303609925.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=841670260

node112.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.65
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.67
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5261.27
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.93
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      11787536 kB
Buffers:       1967712 kB
Cached:       18581040 kB
SwapCached:          0 kB
Active:        9382612 kB
Inactive:     11237776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      11787536 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            9064 kB
Writeback:           0 kB
AnonPages:       71384 kB
Mapped:          15656 kB
Slab:           480288 kB
PageTables:       4764 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   215164 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72556 MiB
End job on node112 at 2011-04-24 03:52:06